Control method and system, vehicle, storage medium and program product

Abstract

The invention provides a control method of an inflation and deflation system, the inflation and deflation system, a vehicle, a storage medium and a program product, the inflation and deflation system comprises an integrated valve, and the control method comprises the steps that a pressure signal and a target pressure value in the inflation and deflation system are obtained; determining a tire pressure adjustment inflation and deflation path for tire pressure adjustment or an external inflation path for external inflation according to the pressure signal and the opening and closing state of the pile-up valve; according to the tire pressure adjusting inflation and deflation path and the target pressure value, the inflation and deflation system is controlled to execute the tire pressure adjusting action, or according to the external inflation path and the target pressure value, the external inflation action is executed. By determining the tire pressure adjusting inflation and deflation path and the external inflation path, the inflation and deflation system is controlled to execute the corresponding action according to the corresponding path and the target pressure value, intelligent and efficient tire pressure management of the tire and inflation management of the external inflation object are achieved, and the driving safety and driving comfort of the vehicle are improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a control method for an air charging and discharging system, an air charging and discharging system, a vehicle, a storage medium and a program product. Background Art

[0002] In order to improve the driving safety and comfort of the vehicle, it is necessary to automatically and effectively collect and manage the tire pressure. In the related technology, the TPMS (Tire Pressure Monitoring System) system is installed on the vehicle, which can collect and monitor the vehicle's tire pressure and promptly remind the driver when the tire pressure is abnormal.

[0003] However, when the tire pressure is managed in the above manner, the tire pressure cannot be actively adjusted, and external tools are needed to manually inflate and deflate the tire to achieve tire pressure adjustment. This is not smart and efficient, and reduces the vehicle's driving safety and comfort. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, an object of the present invention is to propose a control method for an inflation and deflation system. When the tire pressure of a tire is managed by this method, the tire can be inflated and deflated without the need for manpower, thereby achieving active adjustment of the tire pressure, making the tire pressure management intelligent and efficient, and improving the vehicle's driving safety and driving comfort.

[0006] To this end, a second object of the present invention is to provide an inflation and deflation system.

[0007] To this end, a third object of the present invention is to provide a vehicle.

[0008] To this end, a fourth object of the present invention is to provide a computer-readable storage medium.

[0009] To this end, a fifth object of the present invention is to provide a computer program product.

[0010] In order to achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention proposes a control method for an inflation and deflation system, wherein the inflation and deflation system includes an integrated valve, and the control method includes: obtaining a pressure signal and a target pressure value in the inflation and deflation system; determining a tire pressure regulation inflation and deflation path for tire pressure regulation, or an external inflation path for external inflation, according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system; controlling the inflation and deflation system to perform a tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or performing an external inflation action according to the external inflation path and the target pressure value.

[0011] According to the control method of the inflation and deflation system of an embodiment of the present invention, by acquiring the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation path and the target pressure value, thereby realizing the active adjustment of tire pressure by inflating and deflation of the tire without the aid of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, thereby improving the driving safety and driving comfort of the vehicle.

[0012] In some embodiments, the pressure signal includes a tire pressure signal, and a tire pressure regulation inflation and deflation path for tire pressure regulation is determined based on the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, including: when the tire pressure signal is normal, the first air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to be opened and the remaining air valves are closed to determine the first tire pressure regulation inflation and deflation path; when the tire pressure signal is abnormal, the opening and closing state of the air valve in the integrated valve and the opening and closing state of the wheel side valve in the wheel side assembly are controlled to determine the second tire pressure regulation inflation and deflation path.

[0013] In some embodiments, when the tire pressure signal is normal, the first air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine the first tire pressure regulation inflation and deflation path, including: controlling the inflation pump in the inflation and deflation system to start and the first air valve to open and the remaining air valves to close, the inflation pump outputs gas, which enters the wheel side assembly through the first air valve, opens the wheel side valve in the wheel side assembly, and determines the first tire pressure regulation inflation and deflation path.

[0014] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including: when the tire pressure regulation inflation and deflation path is the first tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value, the inflation and deflation system is controlled to inflate the tire in the wheel side assembly.

[0015] In some embodiments, controlling the inflation and deflation system to inflate the tire in the wheel rim assembly includes: controlling the air pump to operate at a preset inflation rate to inflate the tire until the inflation change rate of the tire reaches a preset inflation rate condition, and obtaining a current tire pressure value during the tire inflation process; and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0016] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value, including: determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value; and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value.

[0017] In some embodiments, the output flow of the air pump is determined based on the current tire pressure value and the target tire pressure value, including: determining a tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and a flow calculation formula.

[0018] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including: controlling the operating rate of the air pump according to the output flow until the inflation change rate of the tire reaches a preset air pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the air pump to shut down and controlling the air pump to perform a pressure maintaining action.

[0019] In some embodiments, controlling the air pump to operate at a preset inflation rate includes: cyclically controlling the air pump to operate at a first preset power to inflate the tire for a first preset time, and then controlling the air pump to operate at a second preset power to inflate the tire for a second preset time, wherein the first preset power is greater than the second preset power.

[0020] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, including: when the tire pressure adjustment inflation and deflation path is the first tire pressure adjustment inflation and deflation path and the current tire pressure value is greater than the target tire pressure value, the inflation and deflation system is controlled to deflate the tire in the wheel side assembly.

[0021] In some embodiments, controlling the inflation and deflation system to deflate the tire in the wheel rim assembly includes: controlling the inflation pump in the inflation and deflation system to turn off and the first and third air valves to open and the remaining air valves to close, so as to discharge the air pressure from the tire; controlling the third air valve to operate at a preset deflation rate to deflate the tire until the deflation change rate of the tire reaches a preset deflation rate condition, controlling the inflation and deflation system to enter a deflation monitoring mode to obtain the current tire pressure value during the tire deflation process; and controlling the third air valve to open to deflate the tire according to the current tire pressure value and the target tire pressure value.

[0022] In some embodiments, controlling the third air valve to operate at a preset deflation rate includes: cyclically controlling the third air valve to open for a third preset time, and then controlling the third air valve to close for a fourth preset time.

[0023] In some embodiments, when the tire pressure signal is abnormal, the opening and closing states of the air valve in the integrated valve and the opening and closing states of the wheel side valve in the wheel side assembly are controlled to determine the second tire pressure regulation inflation and deflation path, including: controlling the inflation pump in the inflation and deflation system to start and the first and second air valves in the integrated valve to open and the remaining air valves to close, the inflation pump outputs gas, passes through the first and second air valves into the wheel side assembly, and opens the wheel side valve in the wheel side assembly; controlling the inflation pump to close and the first and second air valves to open and the remaining air valves to close, to determine the second tire pressure regulation inflation and deflation path.

[0024] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including: when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value, the inflation and deflation system is controlled to inflate the tire in the wheel side assembly.

[0025] In some embodiments, controlling the inflation and deflation system to inflate the tire in the wheel rim assembly includes: controlling the inflation pump to start and the first and second air valves to open and the remaining air valves to close, and the inflation pump outputs gas to enter the wheel rim assembly through the second tire pressure regulating inflation and deflation path; controlling the inflation pump to operate at a preset inflation rate to inflate the tire in the wheel rim assembly until the inflation change rate of the tire reaches a preset inflation rate condition, controlling the inflation and deflation system to enter an inflation monitoring mode, and obtaining a current tire pressure value during the tire inflation process; and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0026] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value, including: determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value; and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value.

[0027] In some embodiments, the output flow of the air pump is determined based on the current tire pressure value and the target tire pressure value, including: determining a tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and a flow calculation formula.

[0028] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including: controlling the operating rate of the air pump according to the output flow until the inflation change rate of the tire reaches a preset air pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the air pump to shut down and controlling the air pump to perform a pressure maintaining action.

[0029] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including: when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is greater than the target tire pressure value, the deflation system is controlled to deflate.

[0030] In some embodiments, controlling the deflation system to deflate includes: controlling the first air valve, the second air valve and the third air valve to open and closing the remaining air valves to discharge the air pressure in the tire; controlling the third air valve to operate at a preset deflation rate to deflate the tire in the wheel rim assembly until the deflation change rate of the tire reaches the preset deflation rate, controlling the inflation and deflation system to enter a deflation monitoring mode to obtain a current tire pressure value during tire deflation; controlling the inflation and deflation system to perform a pressure maintaining action according to the current tire pressure value and the target tire pressure value until the current tire pressure value reaches the target tire pressure value.

[0031] In some embodiments, the process of controlling the inflation and deflation system to perform tire pressure regulation according to the tire pressure regulation inflation and deflation path and the target pressure value also includes: determining that the air pressure of the space composed of the second tire pressure regulation inflation and deflation path is stable.

[0032] In some embodiments, after controlling the inflation and deflation system to perform tire pressure regulation according to the tire pressure regulation inflation and deflation path and the target pressure value, the method further includes: sending the inflation state or deflation state of the wheel to a display device of the vehicle.

[0033] In some embodiments, before obtaining the pressure signal and the target pressure value in the inflation and deflation system, the method further includes: controlling the inflation and deflation system to enter a tire pressure regulation function.

[0034] In some embodiments, controlling the inflation and deflation system to enter the tire pressure regulation function includes: obtaining the vehicle speed and gear position; when the vehicle speed and the gear position meet the tire pressure regulation conditions, controlling the inflation and deflation system to enter the tire pressure regulation function.

[0035] In some embodiments, the pressure signal includes an air pressure signal, and the external inflation path of external inflation is determined based on the pressure signal and the opening and closing status of the integrated valve in the inflation and deflation system, including: when the air pressure signal is normal, the fourth air valve in the integrated valve is controlled to open and the remaining air valves are closed to determine the first external inflation path; when the air pressure signal is abnormal, the fifth air valve in the integrated valve, the fourth air valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine the second external inflation path.

[0036] In some embodiments, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform an external inflation action according to the external inflation path and the target pressure value, including: when the external inflation path is the first external inflation path, the inflation pump outputs high-pressure gas to inflate the object through the first external inflation path; obtains the current pressure value of the first external inflation path; and controls the inflation and deflation system to perform an external inflation action according to the current pressure value and the target pressure value.

[0037] In some embodiments, after controlling the inflation and deflation system to perform external inflation according to the current pressure value and the target pressure value, the method further includes: when the current pressure value reaches the target pressure value, controlling the inflation pump and the first air valve to close.

[0038] In some embodiments, when the air pressure signal is abnormal, the fifth air valve in the integrated valve, the fourth air valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine a second external inflation path, including: when the air pump is controlled to start and the fifth air valve is opened and the remaining air valves are closed, the air pump outputs gas, passes through the fifth air valve, enters the wheel side assembly, and then opens the wheel side valve; the air pump is controlled to close and the fourth and fifth air valves are opened and the remaining air valves are closed to determine the second external inflation path.

[0039] In some embodiments, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform an external inflation action according to the external inflation path and the target pressure value, including: when the external inflation path is the second external inflation path, inflating the inflated object through the second external inflation path; obtaining the current air pressure value in the second external inflation path; and controlling the inflation and deflation system to perform an external inflation action according to the current air pressure value and the target air pressure value.

[0040] In some embodiments, obtaining the current air pressure value in the second external inflation path includes: when determining that the air pressure in the second external inflation path is stable, controlling the fifth air valve and the fourth air valve to open and the remaining air valves to close, so as to control the inflation pump to output gas into the second external inflation path; obtaining the current air pressure value of the second external inflation path.

[0041] In some embodiments, after controlling the inflation and deflation system to perform external inflation according to the current air pressure value and the target air pressure value, the method further includes: when the current air pressure value reaches the target air pressure value, controlling the inflation pump and the fourth air valve to close.

[0042] In some embodiments, the external inflation path of the external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and also includes: sending a prompt message indicating that the inflation is completed to a display device of the vehicle.

[0043] In some embodiments, the inflation and deflation system further comprises a control panel, and the inflation interface of the inflated object is arranged on the control panel.

[0044] In some embodiments, determining that the air pressure in the second external inflation path is stable includes: when the current air pressure is at a preset air pressure threshold, determining that the air pressure in the second external inflation path is stable.

[0045] In some embodiments, after controlling the air pump and the fourth air valve to close, the method further includes: adjusting the current tire pressure value of the tire in the wheel rim assembly to the initial tire pressure value.

[0046] In some embodiments, the method further includes: when the current pressure value is consistent with the target pressure value, controlling the inflation and deflation system to enter a sleep mode.

[0047] In order to achieve the above-mentioned purpose, an embodiment of the second aspect of the present invention proposes an inflation and deflation system, including: an inflation pump for outputting gas; an integrated valve connected to the inflation pump, for opening or closing upon receiving a tire pressure adjustment instruction or an inflation and deflation control instruction; a controller connected to the inflation pump and the integrated valve, respectively, for obtaining a pressure signal and a target pressure value in the inflation and deflation system; determining a tire pressure adjustment inflation and deflation path for tire pressure adjustment, or an external inflation path for external inflation, according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system; controlling the inflation and deflation system to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or performing an external inflation action according to the external inflation path and the target pressure value.

[0048] In some embodiments, the inflation and deflation system further includes: a wheel side assembly connected to the integrated valve.

[0049] According to the inflation and deflation system of the embodiment of the present invention, when adjusting the tire pressure of the tire, the system obtains the pressure signal and the target pressure value in the inflation and deflation system, determines the tire pressure adjustment inflation and deflation path for tire pressure adjustment, or the external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, controls the inflation and deflation system to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or performs the external inflation action according to the external inflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0050] In order to achieve the above-mentioned object, an embodiment of the third aspect of the present invention provides a vehicle, comprising: an inflation and deflation system as required by the above-mentioned embodiment.

[0051] According to the vehicle of the embodiment of the present invention, when the inflation and deflation system on the vehicle adjusts the tire pressure of the tire, the pressure signal and the target pressure value in the inflation and deflation system are obtained, and the tire pressure adjustment inflation and deflation path for tire pressure adjustment or the external inflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system. The inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0052] In order to achieve the above-mentioned objectives, an embodiment of the fourth aspect of the present invention proposes a computer-readable storage medium, on which a control program of an inflation and deflation system is stored. When the control program of the inflation and deflation system is executed by a processor, a device equipped with the control program of the inflation and deflation system implements the control method of the inflation and deflation system described in the above-mentioned embodiment.

[0053] In order to achieve the above-mentioned purpose, an embodiment of the fifth aspect of the present invention proposes a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the control method of the inflation and deflation system described in the above-mentioned embodiment.

[0054] According to a computer program product of an embodiment of the present invention, the computer program product runs on a vehicle, obtains a pressure signal and a target pressure value in the inflation and deflation system, determines a tire pressure regulation inflation and deflation path for tire pressure regulation, or an external inflation path for external inflation, according to the pressure signal and the open and closed state of an integrated valve in the inflation and deflation system, controls the inflation and deflation system to perform a tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or performs an external inflation action according to the external inflation path and the target pressure value, thereby achieving active adjustment of tire pressure without the need for manpower to inflate and deflate the tire, making tire pressure management and external inflation management more intelligent and efficient, thereby improving vehicle driving safety and driving comfort.

[0055] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0057] Figure 1 is a diagram of the architecture of a gas charging and discharging system according to an embodiment of the present invention;

[0058] Figure 2 is a flow chart of a control method of an inflation and deflation system according to an embodiment of the present invention;

[0059] Figure 3 is a framework diagram of a normal control system for tire pressure regulation according to an embodiment of the present invention;

[0060] Figure 4 is a framework diagram of an abnormal control system for tire pressure regulation according to an embodiment of the present invention;

[0061] Figure 5 is a system framework diagram of normal external inflation control according to an embodiment of the present invention;

[0062] Figure 6 is a system framework diagram of external inflation control abnormality according to an embodiment of the present invention;

[0063] Figure 7 is a flow chart of selecting tire pressure adjustment according to one embodiment of the present invention;

[0064] Figure 8 is a flow chart of selecting external inflation according to one embodiment of the present invention;

[0065] Fig. 9 is a normal control flow chart of tire pressure regulation according to one embodiment of the present invention;

[0066] Fig.10 is an abnormal control flow chart of tire pressure regulation according to an embodiment of the present invention;

[0067] Fig.11 is a normal control flow chart of external inflation according to one embodiment of the present invention;

[0068] Fig.12 is a flow chart of abnormal control of external inflation according to one embodiment of the present invention;

[0069] Fig.13 is a block diagram of a gas filling and deflation system according to an embodiment of the present invention;

[0070] Fig.14 is a block diagram of a vehicle according to one embodiment of the present invention.

[0071] Reference numerals:

[0072] Inflating and deflation system 10;

[0073] Integrated valve 11; left front wheel assembly 19; left rear wheel assembly 25; right rear wheel assembly 31; right front wheel assembly 37;

[0074] Left front wheel hub assembly 24; left rear wheel hub assembly 27; right rear wheel hub assembly 50; right front wheel hub assembly 38;

[0075] The first air valve 12; the second air valve 16; the third air valve 15; the fourth air valve 18; the fifth air valve 17; the sixth air valve 13; the seventh air valve 14; the air pump 48; the left front wheel rotary seal 20; the first wheel side valve 21; the first tire pressure monitoring sensor 22; the left front wheel 23; the left rear wheel rotary seal 26; the second wheel side valve 28; the left rear wheel 29; the second tire pressure monitoring sensor 30; the right rear wheel rotary seal 32; the third wheel side valve 33; the third tire pressure monitoring sensor 34; the right rear wheel 35; the right front wheel rotary seal 36; the fourth wheel side valve 39; the fourth tire pressure monitoring sensor 40; the right front wheel 41; the vehicle instrument multimedia central control screen 42; the gear position signal and the parking position signal 43; the control panel 44; the external object to be filled 45; the controller 46; the vehicle CAN bus 47; the air pressure sensor 49; the atmosphere 51; the air path 52;

[0076] Vehicle 200. DETAILED DESCRIPTION

[0077] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0078] In related technologies, with the rapid development of the automobile industry, people's requirements for vehicle safety and driving experience have also increased, and tire pressure is particularly important in terms of vehicle driving safety and driving comfort. For the collection and management of vehicle tire pressure, the tire pressure monitoring system TPMS (Tire Pressure Monitoring System) is currently generally installed on the vehicle.

[0079] For example, the common TPMS system on the market consists of a tire pressure monitoring control module and a tire pressure monitoring sensor installed in the tire. The tire pressure monitoring control module monitors the tire pressure of each tire by receiving the wireless signal transmitted by the tire pressure monitoring sensor placed in each tire. This type of TPMS system can collect tire pressure and other signals at intervals. When it detects a significant change in tire pressure or abnormal low pressure, the tire pressure monitoring sensor will transmit data to the tire pressure monitoring control module. The tire pressure monitoring control module will send an alarm signal through display devices such as instruments and multimedia central control screens to remind the driver, and the driver will use external tools to inflate and deflate the tires.

[0080] However, when the tire pressure is managed using the above method, the tire pressure cannot be actively adjusted, and external tools are needed to manually inflate and deflate the tire to achieve tire pressure adjustment. This is not smart and efficient, and reduces the vehicle's driving safety and comfort.

[0081] Therefore, the control method of the inflation and deflation system of the embodiment of the present invention is adopted, by obtaining the pressure signal and the target pressure value in the inflation and deflation system, determining the tire pressure adjustment inflation and deflation path for tire pressure adjustment, or the external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, controlling the inflation and deflation system to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or performing the external inflation action according to the external inflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0082] The control method of the above-mentioned inflation and deflation system is implemented based on the inflation and deflation system, and the inflation and deflation system is illustrated below by way of example.

[0083] First, refer to Figure 1 The invention describes an architecture diagram of an inflation and deflation system according to an embodiment of the invention.

[0084] like Figure 1 1 , which is a diagram of the inflation and deflation system architecture of an embodiment of the present invention. The inflation and deflation system 10 of the embodiment of the present invention includes: an integrated valve 11, a first air valve 12, a second air valve 16, a third air valve 15, a fourth air valve 18, a fifth air valve 17, a sixth air valve 13, a seventh air valve 14, an air pump 48, a left front wheel side assembly 19, a left front wheel rotary sealing device 20, a first wheel side valve 21, a first tire pressure monitoring sensor 22, a left front wheel 23, a left front wheel hub assembly 24, a left rear wheel side assembly 25, a left rear wheel rotary sealing device 26, a left rear wheel hub assembly 27, a second wheel side valve 28, a left rear wheel 29, and a second Tire pressure monitoring sensor 30, right rear wheel side assembly 31, right rear wheel rotary seal device 32, right rear wheel hub assembly 50, third wheel side valve 33, third tire pressure monitoring sensor 34, right rear wheel 35, right front wheel rotary seal device 36, right front wheel side assembly 37, right front wheel hub assembly 38, fourth wheel side valve 39, fourth tire pressure monitoring sensor 40, right front wheel 41, vehicle instrument multimedia central control screen 42, gear position signal and parking position signal 43, control panel 44, external object to be filled 45, controller 46, vehicle CAN bus 47, air pump 48, air pressure sensor 49, atmosphere 51, air circuit 52.

[0085] Among them, the inflation and deflation system 10 obtains the pressure signal and the target pressure value through the controller 46 and determines the tire pressure adjustment inflation and deflation path for tire pressure adjustment, or the external inflation path for external inflation in combination with the opening and closing state of the integrated valve 11, thereby controlling the inflation and deflation system 100 to perform the tire pressure adjustment action, or perform the external inflation action according to the external inflation path and the target pressure value, so as to realize the inflation and deflation of the tire without the help of manpower, realize the active adjustment of the tire pressure, make the tire pressure management intelligent and efficient, and improve the driving safety and driving comfort of the vehicle.

[0086] The components of the inflation and deflation system 10 according to the embodiment of the present invention are explained below.

[0087] The air pump 48, the integrated valve 11, the rotary sealing device, the wheel-side valve, and the vehicle tire are connected through corresponding structural air circuits to form the tire pressure regulating air circuit of the inflation and deflation system 10; the air pump 48, the integrated valve 11, and the control panel 44 are connected through corresponding structural air circuits to form the external inflation air circuit of the inflation and deflation system 10.

[0088] The integrated valve 11 is composed of a first air valve 12, a second air valve 16, a third air valve 15 which is a slow release valve, a fourth air valve 18 which is an external inflation valve, a fifth air valve 17, a sixth air valve 13, a seventh air valve 14 which is a quick release valve and an air pressure sensor 49. The air valves and the airway openings of the air pressure sensor 49 are connected via a central air path in the integrated valve. The air valves in the integrated valve 11 are all solenoid air valves and electrically controlled valves. The controller 46 is connected to the air valves via a circuit and directly controls the switching state of the air valves by controlling the energization state of the coil in the air valves. The controller 46 controls the air source of the inflation and deflation system and the working state of the structural air path by controlling the inflation pump 48 and the integrated valve 11.

[0089] The air pressure sensor 49 in the integrated valve 11 can directly collect various air pressure signals on the structural air path by controlling the structural air path state of the charging and discharging system.

[0090] The tire pressure monitoring sensors in the left front wheel 23, the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 can respectively collect the tire pressure of their respective tires, and send them directly to the tire pressure monitoring module in the controller 46 through wireless transmission signals. The tire pressure monitoring sensors of the above four wheels form a mutually redundant relationship in terms of function, thereby improving the stability of the system in monitoring the tire pressure during the tire pressure adjustment process. Due to the limitation of its own power consumption and other reasons, the tire pressure monitoring sensor can only communicate in a one-way manner, that is, it can only send tire pressure and other signals to the controller 46, and cannot receive control commands from the ECU. In addition, in the "normal mode", the tire pressure monitoring sensor will collect tire pressure and send signals to the outside at an extremely low frequency, so as to save battery power. The tire pressure monitoring sensor uses The corresponding control strategy design has a special system matching and application mode with the inflation pump and the slow-release valve. The system controls the inflation pump to execute the "inflation rate control cycle" and controls the slow-release valve to execute the "deflation rate control cycle", which can change the rate of change of the tire pressure, so that the tire pressure monitoring sensor enters the "inflation monitoring mode" or "deflation monitoring mode" respectively, thereby controlling the tire pressure monitoring sensor to increase the frequency of tire pressure collection and signal sending when the system executes inflation and deflation; the tire pressure monitoring sensor in the tire and the air pressure sensor in the integrated valve 11 can form a mutually redundant relationship in function through abnormal control of the external inflation function, thereby improving the stability of the system in monitoring the pressure of the external object being inflated during the execution of external inflation control.

[0091] An external inflation interface is designed on the control panel 44, which is directly connected to the air outlet of the fourth air valve 18 in the integrated valve 11 through an air path. When an external inflatable object, such as an inflatable rubber boat or an inflatable bed, is connected to the interface and the inflation and deflation system performs the external inflation function, the inflation of the external inflatable object can be controlled through the interface.

[0092] The controller 46 can obtain various signals such as the gear position, vehicle speed, etc. in the gear signal and parking signal 43 through the vehicle CAN (Controller Area Network) bus; it can communicate with the vehicle instrument and / or the multimedia central control screen, and directly display the air pressure, status and other information of each tire and the inflation and deflation system on the vehicle instrument and / or the multimedia central control screen; the driver can send tire pressure adjustment instructions to the system through the vehicle instrument and / or the multimedia central control screen; and external inflation control instructions can be sent to the inflation and deflation system through the control panel 44.

[0093] The controller 46, the air pump 48 and the integrated valve 11 can be individually assembled as an assembly, or they can be integrated into an assembly in pairs, or the three can be integrated into an assembly, which can be installed on the chassis, trunk, or front cabin of the vehicle.

[0094] The vehicle instrument multimedia central control screen 42 includes two parts: the vehicle instrument and the multimedia central control screen.

[0095] The wheel side valve and tire pressure monitoring sensor are installed on the vehicle's wheel hub assembly, and the wheel hub assembly and the rotating sealing device together constitute the vehicle's wheel side assembly.

[0096] The rotary sealing device is used as an air path from the frame to the tire. It is installed or integrated on the wheel rim assembly of the vehicle. Through its special structural design, the rotary sealing device can convert the system air path from static to rotational dynamic, thereby realizing the connection of the system air path from the body to the vehicle wheel hub.

[0097] Based on the above-mentioned inflation and deflation system 10, the following Figure 1-Figure 12 A control method for an air charging and discharging system according to an embodiment of the present invention is described.

[0098] like Figure 2 As shown, the control method of the inflation and deflation system of the embodiment of the present invention at least includes steps S1-S3.

[0099] Step S1, obtaining a pressure signal and a target pressure value in the inflation and deflation system.

[0100] In an embodiment, Figure 1 As shown, the air pressure sensor 49 can collect pressure signals, and the controller 46 obtains the pressure signals collected by the air pressure sensor 49. The target pressure value is set by the driver according to demand. The target pressure value includes a target tire pressure value and a target air pressure value. The target tire pressure value can be set through the vehicle instrument or the multimedia central control screen, and the target air pressure value can be set through the control panel. The controller 46 obtains the target pressure value set by the driver.

[0101] Step S2, determining a tire pressure regulation inflation and deflation path for tire pressure regulation, or an external inflation path for external inflation, according to the pressure signal and the opening and closing state of the integrated valve.

[0102] In an embodiment, Figure 1 As shown, the tire pressure regulation inflation and deflation path of the tire pressure regulation is determined according to the pressure signal and the opening and closing state of the integrated valve. For example, it is necessary to first determine whether the tire pressure signal is normal. When the tire pressure signal is normal, for example, taking the tire pressure regulation of the left front wheel 23 as an example, Figure 3 As shown in FIG. 1 , a normal control system framework diagram of tire pressure regulation of an embodiment of the present invention is shown. The controller 46 controls the first air valve 12 in the integrated valve 11 and the first wheel side valve 21 in the left front wheel side assembly 19 to open, and the remaining air valves are closed, that is, the second air valve 16, the third air valve 15, the fourth air valve 18, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, and the first tire pressure regulation inflation and deflation path is determined; when the tire pressure signal is abnormal, such as Figure 4FIG. 4 is a framework diagram of an abnormal control system for tire pressure regulation according to an embodiment of the present invention. The controller 46 controls the air pump 48 in the inflation and deflation system to start, and controls the first air valve 12 and the second air valve 16 in the integrated valve 11 to open. After the other air valves are closed, the air pump 48 outputs gas, which respectively passes through the first air valve 12 and the second air valve 16 into the left front wheel side assembly 19 and the right front wheel side assembly 37, so that the first wheel side valve 21 and the fourth wheel side valve 39 are opened under the action of air pressure, and the air pump 48 is controlled. Closed, and the first air valve 12 and the second air valve 16 are opened, and the remaining air valves are closed. Therefore, under normal circumstances, the system structure air circuit can form a sealed space of "inflation pump 48--air circuit-second air valve 12--air circuit--left front wheel rotary sealing device 20--air circuit-first wheel side valve 21--left front wheel 23-second air valve 16--air circuit--right front wheel rotary sealing device 36--air circuit-fourth wheel side valve 39--right front wheel 41", which is determined as the second tire pressure regulation inflation and deflation path.

[0103] The external inflation path of the external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve. For example, it is necessary to first determine whether the air pressure signal is normal. When the air pressure signal is normal, Figure 5 As shown, it is a system framework diagram of a normal external inflation control according to an embodiment of the present invention. After the controller 46 is powered on, the inflation and deflation system functions are started, the controller 46 controls the inflation pump 48 to start, and at the same time controls the fourth air valve 18 in the integrated valve to open, and the remaining air valves are closed, that is, the first air valve 12, the second air valve 16, the third air valve 15, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, and the first external inflation path is determined; when the air pressure signal is abnormal, such as Figure 6 As shown, it is a system framework diagram of an abnormal external inflation control of an embodiment of the present invention, the controller 46 controls the inflation pump 48 to start, and at the same time controls the fifth air valve 17 to open, and keeps the remaining air valves in a closed state, that is, the first air valve 12, the second air valve 16, the third air valve 15, the fourth air valve 18, the sixth air valve 13 and the seventh air valve 14 are closed, the high-pressure gas output by the inflation pump 48 passes through the fifth air valve 17, enters the right rear wheel side assembly 31, and after passing through the right rear wheel rotary sealing device 32, the third wheel side valve 33 of the right rear wheel 35 is opened under the action of air pressure, and is determined as the second external inflation path.

[0104] By determining the inflation and deflation path for tire pressure regulation, or the external inflation path for external inflation, the system can select the appropriate path based on different needs and conditions.

[0105] Step S3, controlling the inflation and deflation system to perform tire pressure regulation according to the tire pressure regulation inflation and deflation path and the target pressure value, or performing external inflation according to the external inflation path and the target pressure value.

[0106] In an embodiment, the inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value. For example, when the tire pressure signal is normal, such as Figure 3 As shown, the controller 46 controls the inflation and deflation system to inflate and deflate the tire according to the first tire pressure adjustment inflation and deflation path according to the corresponding conditions. When the tire pressure signal is abnormal, such as Figure 4 As shown, the controller 46 controls the inflation and deflation system to inflate and deflate the tire according to the second tire pressure regulating inflation and deflation path according to corresponding conditions.

[0107] The external inflation action is performed according to the external inflation path and the target pressure value. For example, when the air pressure signal is normal, Figure 5 As shown, the controller 46 controls the inflation and deflation system to inflate the external inflatable object according to the first external inflation path according to the corresponding conditions; when the air pressure signal is abnormal, such as Figure 6 As shown, the controller 46 controls the inflation and deflation system to inflate the external object according to the second external inflation path according to corresponding conditions.

[0108] The inflation and deflation system is controlled to perform tire pressure adjustment actions according to the tire pressure adjustment inflation and deflation path and the target pressure value, or external inflation actions are performed according to the external inflation path and the target pressure value, thereby realizing active adjustment of tire pressure without the need for manpower, making tire pressure management and inflation management of external inflators more intelligent and efficient, thereby improving the vehicle's driving safety and driving comfort.

[0109] According to the control method of the inflation and deflation system of an embodiment of the present invention, by acquiring the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of external inflatable objects more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0110] In some embodiments, the pressure signal includes a tire pressure signal, and a tire pressure regulation inflation and deflation path of the tire pressure regulation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, including when the tire pressure signal is normal, controlling the first air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, to determine the first tire pressure regulation inflation and deflation path; when the tire pressure signal is abnormal, controlling the opening and closing state of the air valve in the integrated valve and the opening and closing state of the wheel side valve in the wheel side assembly to determine the second tire pressure regulation inflation and deflation path.

[0111] In an embodiment, Figure 1 As shown, since the tire pressure regulation principle and process of the four tires are the same, the tire pressure regulation inflation and deflation path of the tire pressure regulation is determined by taking the left front wheel 23 as an example. The pressure signal includes the tire pressure signal of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22. The tire pressure regulation inflation and deflation path of the tire pressure regulation is determined according to the tire pressure signal and the opening and closing state of the integrated valve 11 in the inflation and deflation system 10.

[0112] It is necessary to first determine whether the tire pressure signal is normal. Taking the tire pressure adjustment of the left front wheel 23 as an example, the controller 46 receives the left front tire pressure adjustment instruction and the target tire pressure value related message set by the driver through the vehicle instrument or the multimedia central control screen through the vehicle CAN bus 47, and determines that the vehicle speed, gear position, etc. meet the requirements for starting the tire pressure adjustment function, and the signal output of the first tire pressure monitoring sensor 22 is normal, that is, the tire pressure signal is normal; the controller 46 receives the left front tire pressure adjustment instruction and the target tire pressure value related message set by the driver through the vehicle instrument or the multimedia central control screen through the vehicle CAN bus 47, and determines that the vehicle speed, gear position, etc. meet the requirements for starting the tire pressure adjustment function, but the signal output of the first tire pressure monitoring sensor 22 is abnormal, and the signal output of the fourth tire pressure monitoring sensor 40 is normal, then the system's abnormal tire pressure control is immediately started, that is, the tire pressure signal is abnormal.

[0113] When the tire pressure signal is normal, such as Figure 3 As shown, it is a framework diagram of a normal control system for tire pressure regulation according to an embodiment of the present invention. The framework diagram of a normal control system for tire pressure regulation corresponding to the left front wheel 23 is as follows: Figure 3 As shown, the controller 46 controls the first air valve 12 in the integrated valve 11 and the first wheel side valve 21 in the left front wheel side assembly 19 to open, and the remaining air valves are closed, that is, the second air valve 16, the third air valve 15, the fourth air valve 18, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, and the first tire pressure regulation inflation and deflation path is determined. Figure 1 The process of determining the first tire pressure regulation inflation and deflation path for the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here; when the tire pressure signal is abnormal, the opening and closing states of the air valves in the integrated valve 11 and the opening and closing states of the wheel side valves in the wheel side assembly are controlled. For example, the controller 46 controls the opening and closing states of the air valves in the integrated valve 11 and the opening and closing states of the first wheel side valve 21 in the left front wheel side assembly 19 to determine the second tire pressure regulation inflation and deflation path; by controlling the opening and closing states of the air valves in the integrated valve and the wheel side valves in the wheel side assembly, the inflation and deflation path under normal or abnormal tire pressure regulation signals is determined to achieve inflation and deflation control of the vehicle tires.

[0114] In some embodiments, when the tire pressure signal is normal, the first air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine the first tire pressure regulation inflation and deflation path, including controlling the inflation pump in the inflation and deflation system to start and the first air valve to open and the remaining air valves to close, the inflation pump outputs gas, which enters the wheel side assembly through the first air valve, opens the wheel side valve in the wheel side assembly, and determines the first tire pressure regulation inflation and deflation path.

[0115] In an embodiment, Figure 3 As shown, taking the left front wheel 23 as an example to determine the first tire pressure regulation inflation and deflation path, the left front wheel 23 includes a tire. When the tire pressure signal detected by the first tire pressure monitoring sensor 22 is normal, the controller 46 controls the inflation pump 48 to start, and at the same time controls the first air valve 12 in the integrated valve to open, and keeps the remaining air valves closed, that is, the second air valve 16, the third air valve 15, the fourth air valve 18, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed. The high-pressure gas output by the inflation pump 48 passes through the first air valve 12 and enters the left front wheel side assembly 19. After passing through the left front wheel rotary sealing device 20, the first wheel side valve 21 of the left front wheel is opened under the action of air pressure, so that the high-pressure gas flows into the tire of the left front wheel, which is determined as the first tire pressure regulation inflation and deflation path. Figure 1 The process of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here, so that after the inflation and deflation system determines that the tire pressure adjustment meets the requirements, the left front wheel tire is inflated according to the first tire pressure adjustment inflation and deflation path.

[0116] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the inflation and deflation system to inflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the first tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value.

[0117] In the embodiment, the target pressure value is a value preset by the driver according to the demand and is set to P0. The inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value. Taking the left front wheel 23 as an example, Figure 3 As shown, the first tire pressure monitoring sensor 22 sets the current tire pressure value of the left front wheel 23 monitored as P1 and sends it to the controller 46. When the tire pressure adjustment charging and deflation path is the first tire pressure adjustment charging and deflation path, and the controller 46 determines that the current tire pressure value is less than the target tire pressure value, that is, P1<P0, the controller 46 immediately controls the charging and deflation system to inflate the tire of the left front wheel according to the first tire pressure adjustment charging and deflation path, and controls the charging and deflation system to perform the tire pressure adjustment action. Figure 1The process of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here. The tire pressure regulation action is performed by controlling the inflation and deflation system according to the first tire pressure regulation inflation and deflation path to achieve tire pressure regulation and inflation control of the tires.

[0118] In some embodiments, controlling the inflation and deflation system to inflate the tire in the wheel rim assembly includes: controlling the inflation pump to operate at a preset inflation rate to inflate the tire until the inflation change rate of the tire reaches a preset inflation rate condition, and obtaining the current tire pressure value during the tire inflation process; and the controller controls the inflation and deflation system to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0119] In the embodiment, the inflation and deflation system is controlled to inflate the tire in the wheel assembly, taking the left front wheel 23 as an example, as shown in FIG. Figure 3 As shown, after the system opens the first wheel side valve 21 according to the first tire pressure regulation inflation and deflation path, the controller 46 controls the air pump 48 to operate at a preset inflation rate to inflate the tire of the left front wheel 23, until the controller 46 determines that the tire inflation change rate of the left front wheel 23 reaches the preset inflation rate condition, the controller 46 obtains the current tire pressure value of the left front wheel 23 during the inflation process monitored by the first tire pressure monitoring sensor 22, and the controller 46 controls the inflation and deflation system according to the first tire pressure regulation inflation and deflation path to inflate the tire of the left front wheel according to the current tire pressure value and the target tire pressure value, as shown in FIG. Figure 1 As shown, the inflation process of the tires of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 in the wheel rim assembly is controlled by the inflation and deflation system. The inflation process is the same as above and will not be repeated. By controlling the inflation and deflation system to inflate the tires according to preset conditions and corresponding judgments, preparations are made for realizing intelligent and efficient tire pressure adjustment management.

[0120] In some embodiments, an inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to a current tire pressure value and a target tire pressure value, including determining an output flow rate of an air pump according to the current tire pressure value and a target tire pressure value, and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow rate and the target tire pressure value.

[0121] In the embodiment, the inflation and deflation system is controlled to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value. Taking the left front wheel 23 as an example, Figure 3 As shown, the controller 46 obtains the current tire pressure value of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22, calculates the percentage between the current tire pressure value and the target tire pressure value, and converts the output flow of the air pump 48. The controller 46 controls the inflation and deflation system to inflate the tire of the left front wheel 23 according to the output flow and the target tire pressure value, as shown in FIG. Figure 1As shown, the inflation process of the tires of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 in the wheel rim assembly is controlled by the inflation and deflation system. The details are the same as above and will not be described again. The output flow of the air pump is determined according to the current tire pressure value and the target tire pressure value, and the tire inflation control in the wheel rim assembly is achieved in combination with the target tire pressure value.

[0122] In some embodiments, the output flow of the air pump is determined based on the current tire pressure value and the target tire pressure value, including: determining the tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and the flow calculation formula.

[0123] In the embodiment, the output flow of the air pump is determined according to the current tire pressure value and the target tire pressure value. Taking the left front wheel 23 as an example, Figure 3 As shown, the controller 46 obtains the current tire pressure value of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22 and sets it to P1, the target tire pressure value is set to P0, and the tire pressure percentage value is determined according to the current tire pressure value and the target tire pressure value, that is, P1 / P0×100%, and the flow rate output by the air pump at 100% power is set to V0, and the output flow rate of the air pump is set to V. According to the tire pressure percentage value and the flow calculation formula, the output flow rate of the air pump is determined to be V=[150%-(P1 / P0×100%)]×V0, as shown Figure 1 As shown, the process of determining the output flow of the air pump for the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated. By determining the output flow of the air pump, data support is provided for achieving more accurate tire inflation control.

[0124] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including: controlling the operating rate of the inflation pump according to the output flow until the inflation change rate of the tire reaches a preset inflation pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the inflation pump to shut down and controlling the inflation pump to perform a pressure maintaining action.

[0125] In the embodiment, the inflation and deflation system is controlled according to the output flow and the target tire pressure value to inflate the tire in the wheel assembly. Taking the left front wheel 23 as an example, Figure 3As shown, the controller 46 controls the operating rate of the air pump according to the output flow rate. When the first tire pressure monitoring sensor 22 determines that the tire pressure inflation change rate of the left front wheel 23 reaches the preset air pump power reduction condition, the controller 46 controls the inflation and deflation system to automatically enter the ultra-high frequency mode to inflate the tire of the left front wheel 23. Since the monitoring frequency of the first tire pressure monitoring sensor 22 and the frequency of signal transmission are increased, the controller 46 obtains the current tire pressure value of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22. After determining that the current tire pressure value reaches the target tire pressure value, the controller 46 controls the air pump 48 to turn off, and controls the air pump 48 to perform a pressure-maintaining action, and feeds back the status of "left front wheel inflation completed" to the vehicle instrument or multimedia central control screen, such as Figure 1 As shown, the process of controlling the inflation and deflation system to inflate the tires in the wheel rim assembly for the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated herein. The inflation and deflation system is controlled by output flow and target tire pressure value to inflate the tires according to corresponding conditions, and a corresponding notification is sent to the user after the inflation is completed, so as to make the tire inflation control more intelligent and efficient and enhance the user experience.

[0126] In some embodiments, the air pump is controlled to operate at a preset inflation rate, including cyclically controlling the air pump to operate at a first preset power to inflate the tire for a first preset time, and then controlling the air pump to operate at a second preset power to inflate the tire for a second preset time, wherein the first preset power is greater than the second preset power.

[0127] In the embodiment, the air pump is controlled to operate according to a preset air filling rate. Taking the left front wheel 23 as an example, Figure 3As shown, the first preset power is greater than the second preset power. The first preset power is assumed to be 100% and the second preset power is assumed to be 50%. This ensures that after the first wheel side valve 21 is opened, the controller 46 controls the air pump to run at 100% of the first preset power to inflate the tire of the left front wheel 23. After the first preset time, the air pump 48 is controlled to inflate the tire of the left front wheel 23 at 50% of the second preset power. After the second preset time, the air pump 48 is restored to inflate the left front wheel 23 at 100% of the first preset power. This is an "inflation rate control cycle". The controller 46 controls the air pump 48 to perform N "inflation rate control cycles". The first tire pressure monitoring sensor 22 collects the tire pressure of the left front wheel and determines that the inflation change rate of the tire pressure of the left front wheel 23 has reached the requirement of the "inflation rate control cycle". It then automatically enters the "inflation monitoring mode" and automatically increases the tire pressure collection frequency and the signal sending frequency. The process of controlling the air pump to operate the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 at the preset inflation rate is the same as above and will not be described in detail. The controller 46 can control the output flow rate of the high-pressure gas output by the air pump 48 by controlling the operating power of the air pump 48. The smaller the power, the smaller the output flow rate. When the high-pressure gas output by the air pump 48 is inflated into the tire, the flow rate output by the air pump becomes smaller, and the rate of change of the tire pressure will also decrease accordingly.

[0128] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target tire pressure value, including controlling the inflation and deflation system to deflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the first tire pressure regulation inflation and deflation path and the current tire pressure value is greater than the target tire pressure value.

[0129] In the embodiment, the standard pressure value includes the target tire pressure value P0 set by the driver according to the demand. Taking the left front wheel 23 as an example, Figure 3 As shown, the controller 46 obtains the current tire pressure value P1 of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22, and the controller 46 controls the inflation and deflation system to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target tire pressure value. When the tire pressure adjustment inflation and deflation path is the first tire pressure adjustment inflation and deflation path, and the current tire pressure value is greater than the target tire pressure value, that is, P1>P0, the controller 46 controls the inflation and deflation system to deflate the tire of the left front wheel 23, and controls the inflation and deflation system to perform the tire pressure adjustment action. Figure 1 The process of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here. The tire pressure regulation action is performed by controlling the inflation and deflation system according to the first tire pressure regulation inflation and deflation path to achieve tire pressure regulation and deflation control of the tire.

[0130] In some embodiments, the inflation and deflation system is controlled to deflate the tire in the wheel rim assembly, including controlling the inflation pump in the inflation and deflation system to turn off and the first and third air valves to open and the remaining air valves to close to discharge the air pressure from the tire, controlling the third air valve to operate at a preset deflation rate to deflate the tire until the deflation change rate of the tire reaches a preset deflation rate condition, controlling the inflation and deflation system to enter a deflation monitoring mode, obtaining the current tire pressure value during the tire deflation process, and controlling the third air valve to open to deflate the tire according to the current tire pressure value and the target tire pressure value.

[0131] In the embodiment, the inflation and deflation system is controlled to deflate the tire in the wheel assembly, taking the left front wheel 23 as an example, as shown in FIG. Figure 3 As shown, the controller 46 controls the air pump 48 to start, and at the same time controls the first air valve 12 to open, and keeps the other air valves in a closed state, that is, the second air valve 16, the third air valve 15, the fourth air valve 18, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, and the high-pressure gas output by the air pump 48 passes through the first air valve 12 and enters the left front wheel side assembly 19. After passing through the left front rotary sealing device 20, the first wheel side valve 21 of the left front wheel 23 is opened under the action of air pressure, ensuring that after the first wheel side valve 21 is opened, the controller 46 controls the air pump 48 to close, and at the same time controls the first air valve 12 and the third air valve 15 to open, and keeps the other air valves in a closed state, that is, the second air valve 16, the fourth air valve 15, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed. The valve 18, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, so that the high-pressure gas in the tire of the left front wheel 23 is discharged into the atmosphere to deflate the tire. The first tire pressure monitoring sensor 22 monitors the current tire pressure value of the left front wheel 23. When it is determined that the deflation change rate of the left front wheel 23 reaches the preset deflation rate condition, the inflation and deflation system is controlled to enter the deflation monitoring mode, and the tire pressure monitoring frequency and the signal sending frequency are automatically increased. The controller 46 obtains the current tire pressure value of the left front wheel 23 during the deflation process monitored by the first tire pressure monitoring sensor 22, and controls the third air valve 15 to open according to the current tire pressure value and the target tire pressure value to deflate the tire, and controls the inflation and deflation system to deflate the tire in the wheel side assembly. Figure 1 The processes of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 are the same as above and will not be described in detail. By controlling the closing state of the air valve, the inflation and deflation system is controlled to deflate the tire according to corresponding conditions to achieve intelligent and efficient tire deflation control.

[0132] In some embodiments, controlling the third air valve to operate at a preset deflation rate includes cyclically controlling the third air valve to open for a third preset time and then controlling the third air valve to close for a fourth preset time.

[0133] In the embodiment, the third air valve is controlled to operate according to a preset deflation rate. Taking the left front wheel 23 as an example, Figure 3As shown, the controller 46 controls the third air valve 15 to open, and after the third preset time, controls the third air valve 15 to close, and after the fourth preset time, controls the third air valve 15 to open, which is a "deflation rate control cycle". The controller 46 controls the inflation and deflation system to perform N "deflation rate control cycles". The controller 46 controls the third air valve 15 to close, so that the high-pressure gas in the tire cannot be discharged into the atmosphere. During the deflation process of the tire, the third air valve 15 is controlled to be closed, and the high-pressure gas in the tire will suddenly stop being discharged, and the rate of change of the tire pressure will also decrease accordingly. The controller 46 obtains the current tire pressure value of the left front wheel 23 monitored by the first tire pressure monitoring sensor 22, and after determining that the current tire pressure value reaches the target tire pressure value, controls the execution of the corresponding pressure maintaining action, and feeds back the state of "left front wheel deflation completed" to the vehicle instrument or the multimedia central control screen, and controls the third air valve to operate at the preset deflation rate. Figure 1 The process for the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here. The air valve is controlled to periodically cycle the opening and closing state of the air valve according to a preset time to achieve tire pressure deflation control. After the deflation is completed, a corresponding notification is sent to the user to improve the user experience.

[0134] In some embodiments, when the tire pressure signal is abnormal, the opening and closing states of the air valves in the integrated valve and the opening and closing states of the wheel side valves in the wheel side assembly are controlled to determine a second tire pressure regulating inflation and deflation path, including controlling the inflation pump in the inflation and deflation system to start and the first and second air valves in the integrated valve to open and the remaining air valves to close, the inflation pump outputs gas, which enters the wheel side assembly through the first and second air valves, opens the wheel side valve in the wheel side assembly, controls the inflation pump to close and the first and second air valves to open and the remaining air valves to close, and determines a second tire pressure regulating inflation and deflation path.

[0135] In the embodiment, when the tire pressure signal is abnormal, the opening and closing state of the air valve in the integrated valve and the opening and closing state of the wheel side valve in the wheel side assembly are controlled to determine the second tire pressure adjustment inflation and deflation path, such as Figure 1 As shown, taking the left front wheel 23 as an example, combined with Figure 4The figure shows a framework diagram of an abnormal control system for tire pressure regulation according to an embodiment of the present invention. The controller 46 controls the air pump 48 in the inflation and deflation system to start, and controls the first air valve 12 and the second air valve 16 in the integrated valve 11 to open, and after the other air valves are closed, the air pump 48 outputs gas, which respectively passes through the first air valve 12 and the second air valve 16 into the left front wheel side assembly 19 and the right front wheel side assembly 37, so that the first wheel side valve 21 and the fourth wheel side valve 39 are opened under the action of air pressure, and controls the air pump 48 to close, and the first air valve 12 and the second air valve 16 to open, and the other air valves are closed. Therefore, under normal circumstances, the system structure air path can form "air pump 48--air path--second air valve 1 2--air path--left front wheel rotary sealing device 20--air path--first wheel side valve 21--left front wheel 23--second air valve 16--air path--right front wheel rotary sealing device 36--air path--fourth wheel side valve 39--right front wheel 41" is a sealed space, which is determined as the second tire pressure regulation charging and deflation path. At this time, the gas in the left front wheel 23 and the right front wheel 41 can flow from the high pressure side to the low pressure side in the above-mentioned sealed space. After the air pressure reaches stability, the controller 46 directly collects the right front tire pressure value sent by the fourth tire pressure monitoring sensor 40 to determine the second tire pressure regulation charging and deflation path for Figure 1 The processes of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 are the same as above and will not be described in detail. The second tire pressure adjustment inflation and deflation path is determined to achieve tire inflation and deflation control when the tire pressure signal is abnormal.

[0136] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the inflation and deflation system to inflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value.

[0137] In the embodiment, the target pressure value includes the target tire pressure value set by the driver as P0, and the inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value. Taking the left front wheel 23 as an example, Figure 4 As shown, the first tire pressure monitoring sensor 22 sets the current tire pressure value of the left front wheel 23 monitored as P1 and sends it to the controller 46. When the tire pressure adjustment inflation and deflation path is the second tire pressure adjustment inflation and deflation path, and the controller 46 determines that the current tire pressure value is less than the target tire pressure value, that is, when P1 is less than P0, the controller 46 controls the inflation and deflation system to start inflation control on the above-mentioned sealed space, and controls the inflation and deflation system to perform tire pressure adjustment action for Figure 1 The process of the left rear wheel 29, the right rear wheel 35 and the right front wheel 41 is the same as above and will not be repeated here. The tire pressure regulation action is performed by controlling the inflation and deflation system according to the second tire pressure regulation inflation and deflation path to achieve tire pressure regulation and inflation control of the tires.

[0138] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly, including controlling the inflation pump to start and the first and second air valves to open and the remaining air valves to close, the inflation pump outputs gas to enter the wheel rim assembly through the second tire pressure regulating inflation and deflation path, the inflation pump is controlled to operate at a preset inflation rate to inflate the tire in the wheel rim assembly until the inflation change rate of the tire reaches a preset inflation rate condition, the inflation and deflation system is controlled to enter an inflation monitoring mode, and the current tire pressure value during the tire inflation process is obtained; and the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0139] In the embodiment, the inflation and deflation system is controlled to inflate the tire in the wheel assembly, taking the left front wheel 23 as an example, as shown in FIG. Figure 4 As shown, after the first air valve 12 and the second air valve 16 are controlled to open and the other air valves are closed, the high-pressure gas output by the air pump 48 enters the above-mentioned sealed space through the second tire pressure regulating inflation and deflation path, and flows into the tire of the left front wheel 23 and the tire of the right front wheel 41 through the system air path at the same time, and the air pump is controlled to run N "air pump power control cycles" according to the preset inflation rate to inflate the tire of the left front wheel 23 and the tire of the right front wheel 41 until the inflation change rate of the tire reaches the preset inflation rate condition. For example, the fourth tire pressure monitoring sensor 40 monitors the current tire pressure value of the right front wheel 41, and after determining that the inflation change rate of the tire pressure has reached the requirement of the "inflation rate control cycle", it automatically enters the "inflation monitoring mode", automatically increases the monitoring frequency of the tire pressure, and the signal sending frequency, that is, controls the inflation and deflation system to enter the inflation monitoring mode, controls the inflation and deflation system to inflate the tires of the left front wheel 23 and the right front wheel 41 according to the current tire pressure value and the target tire pressure value, and controls the inflation and deflation system to inflate the tires in the wheel side assembly. Figure 1 The processes of the middle right front wheel 41, the left rear wheel 29 and the right rear wheel 35 are the same as above and will not be repeated here. By controlling the opening and closing state of the air valve, the control system controls the inflation of the tire according to preset conditions to achieve intelligent management of inflation.

[0140] In some embodiments, an inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to a current tire pressure value and a target tire pressure value, including determining an output flow rate of an air pump according to the current tire pressure value and a target tire pressure value, and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow rate and the target tire pressure value.

[0141] In the embodiment, the inflation and deflation system is controlled to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value. Taking the left front wheel 23 as an example, Figure 4As shown, the controller 46 collects the current tire pressure value of the right front wheel 41 sent by the fourth tire pressure monitoring sensor, determines the output flow of the air pump according to the current tire pressure value P1 and the target tire pressure value P1, controls the inflation and deflation system to inflate the tires of the left front wheel 23 and the right front wheel 41 in the above-mentioned enclosed space according to the output flow and the target tire pressure value P1, and controls the inflation and deflation system to inflate the tires in the wheel side assembly. Figure 1 The process of the middle right front wheel 41, the left rear wheel 29 and the right rear wheel 35 is the same as above and will not be repeated here. The output flow of the air pump is determined to achieve precise inflation control of the tire pressure regulation.

[0142] In some embodiments, the output flow of the air pump is determined based on the current tire pressure value and the target tire pressure value, including determining the tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and the flow calculation formula.

[0143] In the embodiment, the output flow of the air pump is determined according to the current tire pressure value and the target tire pressure value. Taking the left front wheel 23 as an example, Figure 4 As shown, the percentage ratio between the current tire pressure value of the right front wheel 41 and the target tire pressure value is calculated, and the controller 46 determines the output flow of the air pump according to the percentage ratio between the current tire pressure value and the target tire pressure value and the flow calculation formula, and dynamically reduces the operating power of the air pump to determine the output flow of the air pump for Figure 1 The process of the middle right front wheel 41, the left rear wheel 29 and the right rear wheel 35 is the same as above and will not be repeated here. The output flow of the air pump is determined to provide data support for tire pressure regulation and inflation control.

[0144] In some embodiments, the inflation and deflation system is controlled to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including controlling the operating rate of the inflation pump according to the output flow until the inflation change rate of the tire reaches a preset inflation pump power reduction condition, controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire, obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the inflation pump to shut down and controlling the inflation pump to perform a pressure maintaining action.

[0145] In the embodiment, the inflation and deflation system is controlled according to the output flow and the target tire pressure value to inflate the tire in the wheel assembly. Taking the left front wheel 23 as an example, Figure 4As shown, the operating rate of the air pump is controlled according to the output flow rate. After the fourth tire pressure monitoring sensor 40 determines that the rate of change of the tire pressure in the right front wheel 41 has reached the requirement of the "inflating pump power reduction control", that is, the inflation rate of the tire has reached the preset inflation pump power reduction condition, the inflation and deflation system is controlled to automatically enter the "ultra-high frequency mode" to inflate the tire, and the tire pressure monitoring frequency and the signal sending frequency are automatically increased. After the controller 46 determines that the air path pressure value of the above-mentioned sealed space has reached the target tire pressure value based on the current tire pressure value of the right front wheel 41 sent by the fourth tire pressure sensor 40, the air pump is controlled to be turned off and the corresponding pressure maintaining action is performed. According to the system requirements, after the right front wheel 41 is restored to the initial tire pressure value, the state of "left front wheel inflation completed" is fed back to the vehicle instrument or the multimedia central control screen, and the inflation and deflation system is controlled to inflate the tire in the wheel side assembly. Figure 1 The process of the middle right front wheel 41, the left rear wheel 29 and the right rear wheel 35 is the same as above and will not be repeated here. The control system inflates the tires according to corresponding conditions to reach the target tire pressure value, performs corresponding pressure maintaining actions, and notifies the user to achieve abnormal tire inflation adjustment of the system and improve user experience.

[0146] In some embodiments, the target pressure value includes a target tire pressure value, and the inflation and deflation system is controlled to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the deflation system to deflate when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is greater than the target tire pressure value.

[0147] In an embodiment, the target pressure value includes a target tire pressure value set by a driver, and the inflation and deflation system is controlled to perform tire pressure regulation according to the tire pressure regulation inflation and deflation path and the target pressure value. When the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path, and the current tire pressure value of the tire monitored by the tire pressure monitoring sensor is greater than the target tire pressure value, the controller 46 controls the deflation system to deflate the above-mentioned sealed space to achieve deflation control of tire pressure regulation.

[0148] In some embodiments, controlling the deflation system to deflate includes controlling the first air valve, the second air valve and the third air valve to open and closing the remaining air valves to discharge the air pressure in the tire, controlling the third air valve to operate at a preset deflation rate to deflate the tire in the wheel rim assembly until the deflation change rate of the tire reaches a preset deflation rate, controlling the inflation and deflation system to enter a deflation monitoring mode, obtaining the current tire pressure value during the tire deflation process, and controlling the inflation and deflation system to perform a pressure maintaining action according to the current tire pressure value and the target tire pressure value until the current tire pressure value reaches the target tire pressure value.

[0149] In the embodiment, the deflation system is controlled to deflate, taking the left front wheel 23 as an example, as Figure 4As shown, the controller 46 keeps the first air valve 12 and the second air valve 16 open, and controls the third air valve 15 to be open at the same time, and the high-pressure gas in the tires of the left front wheel 23 and the right front wheel 41 is discharged to the atmosphere at the same time. The controller 46 controls the third air valve 15 to operate at a preset deflation rate, that is, to execute N "deflation rate control cycles" to deflate the tires in the wheel side assembly. The fourth tire pressure monitoring sensor 40 monitors the current tire pressure value of the tire in the right front wheel 41, and determines that the deflation change rate of the current tire pressure has reached the requirement of the "deflation rate control cycle", that is, the deflation change rate has reached the preset deflation rate. Inflation rate, the inflation and deflation system is controlled to automatically enter the "deflation monitoring mode", automatically increase the monitoring frequency of tire pressure and the signal sending frequency, and the controller 46 collects the current tire pressure value of the right front wheel 41 sent by the fourth tire pressure monitoring sensor 40, that is, the pressure value in the air circuit, and after judging that the air circuit pressure value of the above-mentioned sealed space has reached the target tire pressure value, it controls the execution of the corresponding pressure maintaining action, and according to the system requirements, after the right front wheel 41 is restored to the initial tire pressure value, the state of "left front wheel deflation completed" is fed back to the vehicle instrument or the multimedia central control screen, so as to deflate the tire in the wheel side assembly. Figure 1 The process of the middle right front wheel 41, the left rear wheel 29 and the right rear wheel 35 is the same as above and will not be described in detail. The tires are deflated under corresponding conditions through the control system to achieve tire deflation control when the system is abnormal.

[0150] In some embodiments, the process of controlling the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value also includes determining that the air pressure of the space composed of the second tire pressure regulation inflation and deflation path is stable.

[0151] In an embodiment, the process of controlling the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value also includes determining that the air pressure in the sealed space is stable. For example, taking the left front wheel 23 as an example, Figure 4 As shown, under normal circumstances, the system structure air circuit can form a sealed space of "inflation pump 48--air circuit-second air valve 12--air circuit--left front wheel rotary sealing device 20--air circuit-first wheel side valve 21--left front wheel 23-second air valve 16--air circuit--right front wheel rotary sealing device 36--air circuit-fourth wheel side valve 39--right front wheel 41". At this time, the gas in the left front wheel 23 and the right front wheel 41 can flow from the high-pressure side to the low-pressure side in the above-mentioned sealed space to ensure that the air pressure in the sealed space is stable, so as to realize the tire inflation and deflation control of the system abnormality.

[0152] In some embodiments, after controlling the inflation and deflation system to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, it also includes sending the inflation state or deflation state of the wheel to a display device of the vehicle.

[0153] In an embodiment, after the inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, it also includes sending the inflation state or deflation state of the wheel to the display device of the vehicle. For example, for normal tire inflation and deflation adjustment of the system, that is, the tire inflation and deflation adjustment corresponding to the first tire pressure adjustment inflation and deflation path, when the inflation and deflation of the tire are completed and the corresponding pressure maintaining action is performed, the inflation state or deflation state of the wheel will be sent to the vehicle's entire instrument or multimedia central control screen for display. For abnormal tire inflation and deflation adjustment of the system, that is, the tire inflation and deflation adjustment corresponding to the second tire pressure adjustment inflation and deflation path, when the tire is completed and the corresponding pressure maintaining action is performed, it is also necessary to restore the corresponding tire to the initial tire pressure value according to system requirements, and then the inflation state or deflation state of the wheel will be sent to the vehicle's entire instrument or multimedia central control screen for display, so as to improve the user's car experience.

[0154] In some embodiments, before obtaining the pressure signal and the target pressure value in the inflation and deflation system, the method further includes controlling the inflation and deflation system to enter a tire pressure regulation function.

[0155] In an embodiment, before obtaining the pressure signal and the target pressure value in the inflation and deflation system, the inflation and deflation system may also enter a tire pressure regulation function, such as Figure 1 As shown, after the controller 46 is powered on, the inflation and deflation system function is started. After the inflation and deflation system function is started, the system is in a dormant or sleep state. The system directly communicates with the vehicle instrument multimedia central control screen 42 and the control panel 44 through the vehicle CAN bus 47, thereby obtaining the tire pressure adjustment instruction directly input by the driver on the vehicle instrument or the multimedia central control screen, or obtaining the external inflation control instruction input by the driver on the control panel 44. The tire pressure adjustment instruction and the external inflation control instruction are mutually exclusive function selection instructions. The system executes the corresponding system function according to the corresponding function selection instruction. When the system obtains the external inflation control instruction set by the driver through the control panel from the vehicle CAN bus 47, the system enters the external inflation function. When the system obtains the tire pressure adjustment instruction and the target tire pressure value set by the driver through the vehicle instrument or the multimedia central control screen from the vehicle CAN bus 47, the system enters the tire pressure adjustment function, so as to realize the intelligent control of the system entering the tire pressure adjustment function.

[0156] In some embodiments, controlling the inflation and deflation system to enter the tire pressure regulation function includes obtaining the vehicle speed and gear position, and when the vehicle speed and gear position meet the tire pressure regulation conditions, controlling the inflation and deflation system to enter the tire pressure regulation function.

[0157] In an embodiment, the inflation and deflation system is controlled to enter the tire pressure regulation function, including obtaining the vehicle speed and gear position. When the vehicle speed and gear position meet the tire pressure regulation conditions, the inflation and deflation system is controlled to enter the tire pressure regulation function. The system directly obtains the relevant messages of the vehicle speed and gear position signals through the vehicle CAN bus 47, and determines whether the vehicle speed meets the system preset speed, such as 0km / h, and whether the vehicle gear position is in P gear. When the vehicle speed or gear position does not meet the entry conditions, the system is in standby mode, and will not inflate or deflate the tires, and continues to determine whether the vehicle speed and gear position meet the entry conditions. When the vehicle speed meets the entry conditions and the gear position also meets the entry conditions, the system will perform inflation or deflation control on the tires according to the target tire pressure set by the driver. While performing inflation or deflation control, the system will feed back the current tire pressure value and the current inflation and deflation status of each tire in real time to the vehicle instrument or multimedia central control screen for display. If the system determines that the current tire pressure has reached the target tire pressure set by the driver, it will stop the tire inflation or deflation control and enter a dormant (standby) state, waiting for new control instructions to realize the intelligent control of the system entering the tire pressure adjustment function and enhance the user's car experience.

[0158] It should be noted that when the tire pressure signal is abnormal and corresponds to the second tire pressure adjustment inflation and deflation path, the above takes the tire pressure adjustment of the left front wheel as an example. Similarly, the tire pressure adjustment functions of the right front wheel 41, the left rear wheel 29, and the right rear wheel 35 are also the same, and the right front wheel 41 is taken as an example as the pressure reference wheel. Similarly, the system can select the left rear wheel 29 and the right rear wheel 35 as the pressure reference wheels for the tire pressure adjustment of the left front wheel 23 as needed when the system determines that the signal output of the first tire pressure monitoring sensor 22 is abnormal.

[0159] In some embodiments, the pressure signal includes an air pressure signal, and the external inflation path of external inflation is determined according to the pressure signal and the opening and closing status of the integrated valve in the inflation and deflation system, including when the air pressure signal is normal, controlling the fourth air valve in the integrated valve to open and the remaining air valves to close, thereby determining the first external inflation path; when the air pressure signal is abnormal, controlling the fifth air valve, the fourth air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, thereby determining the second external inflation path.

[0160] In an embodiment, Figure 5As shown, it is a system framework diagram of a normal external inflation control of an embodiment of the present invention. The pressure signal includes an air pressure signal. The external inflation path of the external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system. It is necessary to first determine whether the air pressure signal is normal. The controller 46 receives the target pressure value of the external inflatable object sent by the control panel 44 through the vehicle CAN bus, as well as the relevant message corresponding to the pressure unit selection, and determines that the air pressure sensor signal output is normal, then the air pressure signal is normal, and the normal external inflation control of the system is immediately started. If the air pressure sensor signal output is abnormal, then the air pressure signal is abnormal, that is, the abnormal external inflation control of the system is started.

[0161] Combination Figure 5 and Figure 6 , Figure 6 This is a system framework diagram of an abnormal external inflation control in an embodiment of the present invention. When the air pressure signal is normal, after the controller 46 is powered on, the inflation and deflation system function starts, the controller 46 controls the inflation pump 48 to start, and at the same time controls the fourth air valve 18 in the integrated valve to open, and the remaining air valves to close, that is, the first air valve 12, the second air valve 16, the third air valve 15, the fifth air valve 17, the sixth air valve 13 and the seventh air valve 14 are closed, and the first external inflation path is determined. When the air pressure signal is abnormal, the controller 46 controls the inflation pump 48 to start, and at the same time controls the fifth air valve 17 to open, and keeps the remaining air valves It is in a closed state, that is, the first air valve 12, the second air valve 16, the third air valve 15, the fourth air valve 18, the sixth air valve 13 and the seventh air valve 14 are closed, and the high-pressure gas output by the inflation pump 48 passes through the fifth air valve 17 and enters the right rear wheel side assembly 31. After passing through the right rear wheel rotating sealing device 32, the third wheel side valve 33 of the right rear wheel 35 is opened under the action of air pressure and is determined as the second external inflation path, so that the system can select the corresponding inflation path according to different conditions and realize intelligent control of external inflation.

[0162] In some embodiments, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform an external inflation action according to the external inflation path and the target pressure value, including when the external inflation path is a first external inflation path, the inflation pump outputs high-pressure gas through the first external inflation path to inflate the inflated object, obtains the current pressure value of the first external inflation path, and controls the inflation and deflation system to perform an external inflation action according to the current pressure value and the target pressure value.

[0163] In an embodiment, Figure 5As shown, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform the external inflation action according to the external inflation path and the target pressure value. When the external inflation path is the first external inflation path, the high-pressure gas output by the inflation pump 48 flows into the fourth air valve 18 through the air path, and then flows to the control panel 44 through the air path, and flows to the external inflatable object through the external inflation interface of the control panel 44. The controller 46 collects the pressure value of the air path between the fourth air valve 18 and the air pressure sensor 49 in real time through the air pressure sensor 49. At this time, the system structure air path collected by the air pressure sensor 49 is normally the air pressure in the space of "inflating pump 48--air path-air pressure sensor 49--air path--fourth air valve 18--air path--control panel 44--external inflatable object 45", that is, the current pressure value of the external inflatable object 45. According to the pressure value, it is judged whether the current pressure value of the external inflatable object 45 reaches the target pressure value of the external inflatable object 45, so as to control the inflation and deflation system to perform the external inflation action.

[0164] In some embodiments, after controlling the inflation and deflation system to perform the external inflation action according to the current pressure value and the target pressure value, the method further includes controlling the inflation pump and the first air valve to close when the current pressure value reaches the target pressure value.

[0165] In the embodiment, after the inflation and deflation system is controlled to perform external inflation according to the current pressure value and the target pressure value, when the current pressure value of the external object 45 reaches the target pressure value, the controller 46 controls the inflation pump 48 and the fourth air valve 18 to close, and feeds back the status of "external inflation completed" to the control panel 44 for display, so as to realize intelligent control of the external inflatable object and enhance the user's car experience.

[0166] In some embodiments, when the air pressure signal is abnormal, the fifth air valve, the fourth air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine a second external inflation path, including: when the air pump is controlled to start and the fifth air valve is opened and the remaining air valves are closed, the air pump outputs gas, passes through the fifth air valve, enters the wheel side assembly, and then opens the wheel side valve; the air pump is controlled to close and the fourth air valve and the fifth air valve are opened and the remaining air valves are closed to determine a second external inflation path.

[0167] In an embodiment, when the air pressure signal is abnormal, such as Figure 6As shown, the controller 46 controls the air pump 48 to close, and at the same time controls the fourth air valve 18 to open, keeps the fifth air valve 17 open, and keeps the remaining solenoid air valves in a closed state, that is, the first air valve 12, the second air valve 16, the third air valve 15, the sixth air valve 13 and the seventh air valve 14 are closed. Therefore, under normal circumstances, the system structure air path can form a sealed space of "air pump 48--air path-air pressure sensor 49--air path--fourth air valve 18--air path--control panel 44--external filled object 45--fifth air valve 17--air path--right rear wheel rotating sealing device 32--air path-third wheel side valve 33-right rear wheel 35", which is determined as the second external inflation path, and serves as a path basis for the inflation control of the external filled object.

[0168] In some embodiments, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform an external inflation action according to the external inflation path and the target pressure value, including when the external inflation path is a second external inflation path, inflating the inflated object through the second external inflation path, obtaining the current air pressure value in the second external inflation path, and controlling the inflation and deflation system to perform an external inflation action according to the current air pressure value and the target air pressure value.

[0169] In an embodiment, the target pressure value includes a target air pressure value, and the inflation and deflation system is controlled to perform external inflation action according to the external inflation path and the target pressure value. When the external inflation path is the second external inflation path, the gas in the right rear wheel 35 can enter the right rear wheel rotating sealing device 32 through the third wheel side valve 33, and then flow to the control panel 44 through the fifth air valve 17 and the fourth air valve 18 in sequence, and flow to the external inflatable object through the external inflation interface of the control panel 44 to inflate the inflatable object, obtain the current air pressure value in the second external inflation path, and control the inflation and deflation system to perform external inflation action according to the current air pressure value and the target air pressure value, so as to realize intelligent inflation of the external inflatable object and enhance the user's car experience.

[0170] In some embodiments, obtaining the current air pressure value in the second external inflation path includes determining that when the air pressure in the second external inflation path is stable, controlling the fifth air valve and the fourth air valve to open and the remaining air valves to close, so as to control the inflation pump to output gas into the second external inflation path, and obtaining the current air pressure value of the second external inflation path.

[0171] In an embodiment, Figure 6As shown, the controller 46 obtains the current air pressure value in the second external inflation path collected by the air pressure sensor 49. After the air pressure reaches stability, the controller 46 controls the inflation pump 48 to start, and keeps the fourth air valve 18 and the fifth air valve 17 open, and keeps the remaining air valves in a closed state, that is, the first air valve 12, the second air valve 16, the third air valve 15, the sixth air valve 13 and the seventh air valve 14 are closed, so as to control the inflation pump 48 to output gas into the second external inflation path, and the high-pressure gas output by the inflation pump 48 enters the above-mentioned sealed space, that is, the second external inflation path. In the path, it is equivalent to directly flowing to the external object to be filled 45 and the tire of the right rear wheel 35, and the current air pressure value of the second external inflation path is obtained. The controller 46 directly collects the tire pressure value of the right rear wheel 35 fed back by the third tire pressure monitoring sensor 34. At this time, the tire pressure value collected by the third tire pressure monitoring sensor 34 is the current air pressure value in the above-mentioned sealed space, that is, the current pressure value of the external object to be filled. The controller 46 determines whether the current pressure value of the external object to be filled 45 reaches the target pressure value of the external object to be filled 45 based on the tire pressure value, so as to realize the inflation control of the external object to be filled.

[0172] In some embodiments, after controlling the inflation and deflation system to perform external inflation according to the current air pressure value and the target air pressure value, the method further includes controlling the inflation pump and the fourth air valve to close when the current air pressure value reaches the target air pressure value.

[0173] In the embodiment, after the inflation and deflation system is controlled to perform external inflation according to the current air pressure value and the target air pressure value, when the current pressure value of the external object to be inflated reaches the target pressure value, the controller 46 controls the inflation pump 48 and the fourth air valve 18 to close, and restores the right rear wheel 35 to the initial tire pressure value, and then feeds back the status of "external inflation completed" to the control panel 44 for display, so as to realize inflation feedback of the external object to be inflated and enhance the user's car experience.

[0174] In some embodiments, the external inflation path of the external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and also includes sending a prompt message of inflation completion to the display device of the vehicle.

[0175] In an embodiment, the external inflation path of external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and a prompt message of inflation completion needs to be sent to the display device of the vehicle. When the pressure signal is normal, the external object to be inflated is inflated through the first external inflation path. After the inflation is completed, the inflation status needs to be sent to the control panel 44. When the pressure signal is abnormal, the external object to be inflated is inflated through the second external inflation path. After the inflation is completed, the corresponding tire needs to be restored to the initial tire pressure value, and then the inflation status is sent to the control panel 44 to realize inflation feedback of the external object to be inflated and improve the user's car experience.

[0176] In some embodiments, the inflation and deflation system further includes a control panel, and an inflation interface of the inflated object is disposed on the control panel.

[0177] In an embodiment, Figure 1 As shown, the inflation and deflation system further includes a control panel 44, and an inflation interface of an external inflatable object 45 is arranged on the control panel to realize inflation of the external inflatable object.

[0178] In some embodiments, determining that the air pressure in the second external inflation path is stable includes: determining that the air pressure in the second external inflation path is stable when the current air pressure is at a preset air pressure threshold.

[0179] In an embodiment, Figure 6 As shown, when it is determined that the air pressure in the second external inflation path is stable, the controller 46 determines that the air pressure in the second external inflation path is stable when the current air pressure is at a preset air pressure threshold.

[0180] In some embodiments, after controlling the air pump and the fourth air valve to close, the method further includes adjusting the current tire pressure value of the tire in the wheel rim assembly to the initial tire pressure value.

[0181] In an embodiment, Figure 6 As shown, after controlling the air pump and the fourth air valve 18 to be closed, the right rear wheel 35 is also restored to the initial tire pressure value.

[0182] In some embodiments, when the current pressure value is consistent with the target pressure value, the inflation and deflation system is controlled to enter a sleep mode.

[0183] In an embodiment, Figure 1As shown, when the current pressure value is consistent with the target pressure value, the inflation and deflation system is controlled to enter the sleep mode. After the controller 46 is powered on, the inflation and deflation system function is started. After the inflation and deflation system function is started, the system is in a sleep or standby state. The system communicates directly with the vehicle instrument multimedia central control screen 42 and the control panel 44 through the vehicle CAN bus 47, so as to obtain the tire pressure adjustment command directly input by the driver on the vehicle instrument or the multimedia central control screen, or obtain the external inflation control command input by the driver on the control panel. The tire pressure adjustment command and the external inflation control command are mutually exclusive function selection commands. The system executes the corresponding system function according to the corresponding function selection command. The system obtains the tire pressure adjustment command and the target tire pressure value set by the driver through the vehicle instrument or the multimedia central control screen from the vehicle CAN bus 47 When the system enters the tire pressure adjustment function, and when the system obtains the external inflation control instruction set by the driver through the control panel 44 from the vehicle CAN bus 47, the system enters the external inflation function. The system directly obtains the target pressure value of the external object 45 sent by the control panel 44 through the vehicle CAN bus 47, and the relevant message of the corresponding pressure unit selection, and controls the inflation of the external object 45 according to the target pressure value of the external object and the corresponding pressure unit. While executing the external inflation control, the system feeds back the current external inflation status to the control panel in real time, and displays it on the vehicle instrument or multimedia central control screen. When the system determines that the current pressure value of the external object 45 reaches the target pressure value set by the driver, it stops the external inflation control, enters the sleep or standby state, and waits for new control instructions.

[0184] It should be noted that when the above air pressure signal is abnormal, such as Figure 1 As shown, the external object is inflated through the second external inflation path, and the right rear wheel 35 is taken as an example as a pressure reference wheel. Similarly, the system can select the left front wheel 23, the right front wheel 41, and the left rear wheel 29 as the pressure reference wheels for external inflation abnormality control when the system determines that the air pressure sensor signal output is abnormal.

[0185] Reference below Figure 7-Figure 12 The control method of the inflation and deflation system according to the embodiment of the present invention is described in detail.

[0186] The control method of the inflation and deflation system includes a process for selecting tire pressure regulation, a process for selecting external inflation, a normal control process for tire pressure regulation, an abnormal control process for tire pressure regulation, a normal control process for external inflation, and an abnormal control process for external inflation.

[0187] like Figure 7 FIG. 1 is a flowchart of selecting tire pressure regulation according to an embodiment of the present invention. The process of selecting tire pressure regulation according to the embodiment of the present invention, that is, the process of the inflation and deflation system selecting to enter the tire pressure regulation function, at least includes steps S10 to S21.

[0188] Step S10, the tire pressure regulating function and external inflation function of the inflation and deflation system.

[0189] Step S11, after the system is powered on and the charging and discharging system functions are started, the system is in a dormant state.

[0190] Step S12, obtaining the relevant message of the function selection through the CAN bus, and waiting for the execution instruction of the corresponding function.

[0191] Step S13, entering the tire pressure adjustment function.

[0192] Step S14, obtaining relevant messages of the gear position, speed and other signals of the vehicle through the CAN bus.

[0193] Step S15, determining whether the current vehicle speed meets the preset vehicle speed and whether the vehicle gear is in the P gear. If so, executing step S17; otherwise, executing step S16.

[0194] In step S16, the system is in standby mode and continues to determine whether the current vehicle speed meets the preset vehicle speed and whether the vehicle gear is in the P gear.

[0195] In step S17, the system performs inflation control or deflation control on the tire according to the target tire pressure value set by the driver.

[0196] In step S18, the system feeds back the current tire pressure value and inflation and deflation status to the vehicle instrument panel or multimedia central control screen in real time.

[0197] Step S19, determining whether the current tire pressure value reaches the target tire pressure value set by the driver. If so, executing step S20; otherwise, executing step S21.

[0198] Step S20, stopping the tire inflation control or deflation control and entering a dormant state.

[0199] Step S21, continue inflation or deflation control.

[0200] like Figure 8 FIG. 1 is a flow chart of selecting external inflation according to an embodiment of the present invention. The flow chart of selecting external inflation according to the embodiment of the present invention is to enter the external inflation function, which at least includes steps S30 to S39.

[0201] Step S30, the tire pressure regulating function and external inflation function of the inflation and deflation system.

[0202] Step S31, the system is powered on, and after the charging and discharging system functions are started, the system is in a dormant state.

[0203] Step S32, obtaining the relevant message of the function selection through the CAN bus, and waiting for the execution instruction of the corresponding function.

[0204] Step S33, entering the external inflation function.

[0205] Step S34, obtaining the relevant message of the signal such as the target pressure value of the external filling object sent by the control panel.

[0206] Step S35, inflating the external object according to the target pressure value of the external object set by the driver.

[0207] In step S36, the system feeds back the current tire pressure value and inflation and deflation status to the vehicle instrument panel or multimedia central control screen in real time.

[0208] Step S37, determining whether the current pressure value of the external filling material reaches the target pressure value. If so, executing step S38; otherwise, executing step S39.

[0209] Step S38, stop external inflation control and enter a dormant state.

[0210] Step S39, continue to inflate the external object.

[0211] like Fig. 9 FIG. 1 is a normal control flow chart of tire pressure regulation according to an embodiment of the present invention. The normal control flow of tire pressure regulation according to the embodiment of the present invention, that is, the tire pressure regulation flow when the tire pressure signal is normal, at least includes steps S50 to S72.

[0212] Step S50, when the tire pressure signal is normal.

[0213] Step S51, determining a first tire pressure adjustment inflation and deflation path.

[0214] Step S52, determine whether the current tire pressure value is less than the target tire pressure value. If so, execute step S53; otherwise, execute step S64.

[0215] Step S53, controlling the inflation and deflation system to inflate the tire in the wheel rim assembly.

[0216] Step S54, controlling the inflation pump to operate at a preset inflation rate.

[0217] Step S55, determining whether the inflation rate of the tire reaches a preset inflation rate condition. If yes, executing step S57; otherwise, executing step S56.

[0218] Step S56, continue inflation.

[0219] Step S57, controlling the inflation and deflation system to enter an inflation monitoring mode.

[0220] Step S58, controlling the operating speed of the air pump.

[0221] Step S59, determining whether the tire inflation rate reaches a preset inflation pump power reduction condition. If yes, executing step S61; otherwise, executing step S60.

[0222] Step S60, continue to inflate.

[0223] Step S61, controlling the inflation and deflation system to enter the ultra-high frequency mode.

[0224] Step S62, determining whether the current tire pressure value reaches the target tire pressure value. If so, executing step S64; otherwise, executing step S63.

[0225] Step S63, continue inflation.

[0226] Step S64, executing the corresponding pressure-maintaining action, and sending the tire inflation status to the user.

[0227] Step S65, controlling the inflation and deflation system to deflate the tire in the wheel rim assembly.

[0228] Step S66, controlling the third air valve to operate at a preset deflation rate.

[0229] Step S67, determining whether the tire deflation rate reaches a preset deflation rate condition. If yes, proceed to step S69; otherwise, proceed to step S68.

[0230] Step S68, continue to deflate.

[0231] Step S69, controlling the inflation and deflation system to enter deflation monitoring mode.

[0232] Step S70, determining whether the current tire pressure value reaches the target tire pressure value. If so, executing step S71; otherwise, executing step S72.

[0233] Step S71, executing the corresponding pressure-maintaining action, and sending the deflation status of the tire to the user.

[0234] Step S72, continue to deflate.

[0235] like Fig.10 FIG. 1 is a flowchart of abnormal control of tire pressure regulation according to an embodiment of the present invention. The abnormal control process of tire pressure regulation according to the embodiment of the present invention, that is, the process of tire pressure regulation when the tire pressure signal is abnormal, at least includes steps S80 to S105.

[0236] Step S80: When the tire pressure signal is abnormal.

[0237] Step S81, determining a second tire pressure adjustment inflation and deflation path.

[0238] Step S82, determine whether the current tire pressure value is less than the target tire pressure value. If so, execute step S83; otherwise, execute step S97.

[0239] Step S83, controlling the inflation and deflation system to inflate the tire in the wheel rim assembly.

[0240] Step S84, controlling the inflation pump to operate at a preset inflation rate.

[0241] Step S85, determining whether the inflation rate of the tire reaches a preset inflation rate condition. If yes, executing step S87; otherwise, executing step S86.

[0242] Step S86, continue inflation.

[0243] Step S87, controlling the inflation and deflation system to enter an inflation monitoring mode.

[0244] Step S88, controlling the operating speed of the air pump.

[0245] Step S89, determining whether the tire inflation rate reaches a preset inflation pump power reduction condition. If yes, executing step S91; otherwise, executing step S90.

[0246] Step S90, continue to inflate.

[0247] Step S91, controlling the inflation and deflation system to enter the ultra-high frequency mode.

[0248] Step S92, determine whether the current tire pressure value reaches the target tire pressure value. If so, execute step S94; otherwise, execute step S93.

[0249] Step S93, continue inflation.

[0250] Step S94, controlling the air pump to turn off and performing corresponding pressure maintaining actions.

[0251] Step S95, restoring the corresponding tire pressure to the initial tire pressure value.

[0252] Step S96, sending the tire inflation status to the user.

[0253] Step S97, controlling the inflation and deflation system to deflate the tire in the wheel rim assembly.

[0254] Step S98, controlling the third air valve to operate at a preset deflation rate.

[0255] Step S99, whether the deflation rate of the tire reaches the preset deflation rate condition. If yes, execute step S101; otherwise, execute step S100.

[0256] Step S100, continue to deflate.

[0257] Step S101, controlling the inflation and deflation system to enter deflation monitoring mode.

[0258] Step S102, determine whether the current tire pressure value reaches the target tire pressure value. If so, execute step S104; otherwise, execute step S103.

[0259] Step S103, continue to deflate.

[0260] Step S104, restoring the corresponding tire pressure to the initial tire pressure value.

[0261] Step S105: sending the deflation status of the tire to the user.

[0262] like Fig.11 FIG. 1 is a normal control flow chart of external inflation according to an embodiment of the present invention. The normal control flow of external inflation according to the embodiment of the present invention, that is, the external inflation flow when the air pressure signal is normal, at least includes steps S110 to S117.

[0263] Step S110, when the air pressure signal is normal.

[0264] Step S111, determining a first external inflation path.

[0265] Step S112: the inflation pump outputs high-pressure gas through the first external inflation path to inflate the inflatable object.

[0266] Step S113, controlling the inflation and deflation system to perform external inflation according to the current pressure value and the target pressure value.

[0267] Step S114, determining whether the front pressure value reaches the target pressure value. If so, executing step S115; otherwise, executing step S117.

[0268] Step S115, controlling the air pump and the first air valve to close.

[0269] Step S116, sending the tire inflation status to the user.

[0270] Step S117, continue inflation.

[0271] like Fig.12 FIG. 1 is a flowchart of abnormal control of external inflation according to an embodiment of the present invention. The abnormal control process of external inflation according to the embodiment of the present invention, that is, the external inflation process when the air pressure signal is abnormal, at least includes steps S130 to S141.

[0272] Step S130, when the air pressure signal is abnormal.

[0273] Step S131, when the air pump is started and the fifth air valve is opened and the other air valves are closed, the air pump outputs gas, passes through the fifth air valve, enters the wheel side assembly, and then opens the wheel side valve.

[0274] Step S132, controlling the air pump to be turned off, the fourth air valve and the fifth air valve to be opened, and the remaining air valves to be closed, to determine the second external air charging path.

[0275] Step S133, inflating the object through the second external inflation path.

[0276] Step S134, determining whether the air pressure in the second external inflation path is stable. If so, executing step S136; otherwise, executing step S135.

[0277] Step S135, waiting for the air pressure to stabilize.

[0278] Step S136, controlling the fifth air valve and the fourth air valve to open and the remaining air valves to close, and controlling the air pump to output gas into the second external air charging path.

[0279] Step S137, determining whether the front pressure value reaches the target pressure value. If so, executing step S139; otherwise, executing step S138.

[0280] Step S138, continue inflation.

[0281] Step S139, controlling the air pump and the fourth air valve to close.

[0282] Step S140, restoring the corresponding tire pressure to the initial tire pressure value.

[0283] Step S141, sending the tire inflation status to the user.

[0284] According to the control method of the inflation and deflation system of an embodiment of the present invention, by obtaining the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure adjustment inflation and deflation path for tire pressure adjustment, or the external inflation inflation and deflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation inflation and deflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of external inflatables more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0285] Reference below Fig.13 An inflation and deflation system 10 according to an embodiment of the present invention is described.

[0286] like Fig.13 FIG. 1 is a block diagram of an air charging and discharging system according to an embodiment of the present invention. The air charging and discharging system 10 according to the embodiment of the present invention comprises an air charging pump 48 , an integrated valve 11 and a controller 46 .

[0287] Among them, the inflation pump 48 is used to output gas; the integrated valve 11 is connected to the inflation pump 48, and is used to open or close when receiving a tire pressure adjustment instruction or an inflation and deflation control instruction; the controller 46 is respectively connected to the inflation pump 48 and the integrated valve 11, and is used to obtain the pressure signal and the target pressure value in the inflation and deflation system, and determine the tire pressure adjustment inflation and deflation path for tire pressure adjustment, or the external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve 11 in the inflation and deflation system, and control the inflation and deflation system to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or perform the external inflation action according to the external inflation path and the target pressure value.

[0288] In some embodiments, the inflation and deflation system further includes a wheel side assembly connected to the integrated valve.

[0289] In an embodiment, Figure 1 As shown, the inflation and deflation system also includes a left front wheel assembly 19 , a left rear wheel assembly 25 , a right rear wheel assembly 31 and a right front wheel assembly 37 , all of which are connected to the integrated valve 11 .

[0290] It should be noted that the inflation and deflation system 10 includes the components of the system, the control method of the above-mentioned inflation and deflation system, and can be integrated with related control systems including but not limited to air suspension control systems; similarly, the controller 46 in the inflation and deflation system 10 can be integrated with the inflation pump 48 to form an inflation pump assembly, or it can be an independent inflation and deflation system controller, or it can be a functional module integrated in a domain controller including but not limited to a vehicle chassis domain controller; similarly, the tire pressure monitoring module integrated in the controller 46 in the inflation and deflation system 10 can also be any controller that integrates a tire pressure monitoring signal functional module, or it can be an independent tire pressure monitoring controller.

[0291] According to the inflation and deflation system 10 of the embodiment of the present invention, by acquiring the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation inflation and deflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation inflation and deflation path and the target pressure value, thereby realizing the active adjustment of tire pressure by inflating and deflation of the tire without the help of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, thereby improving the driving safety and driving comfort of the vehicle.

[0292] In some embodiments, the pressure signal includes a tire pressure signal, and the controller 46 determines the tire pressure regulation inflation and deflation path of the tire pressure regulation according to the pressure signal and the opening and closing status of the integrated valve in the inflation and deflation system, including when the tire pressure signal is normal, controlling the first air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, to determine the first tire pressure regulation inflation and deflation path; when the tire pressure signal is abnormal, controlling the opening and closing status of the air valve in the integrated valve and the opening and closing status of the wheel side valve in the wheel side assembly to determine the second tire pressure regulation inflation and deflation path.

[0293] In some embodiments, when the tire pressure signal is normal, the controller 46 controls the first air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, and determines the first tire pressure regulation inflation and deflation path, including controlling the inflation pump in the inflation and deflation system to start and the first air valve to open and the remaining air valves to close, the inflation pump outputs gas, enters the wheel side assembly through the first air valve, opens the wheel side valve in the wheel side assembly, and determines the first tire pressure regulation inflation and deflation path.

[0294] In some embodiments, the target pressure value includes a target tire pressure value, and the controller 46 controls the inflation and deflation system to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the inflation and deflation system to inflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the first tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value.

[0295] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tire in the wheel rim assembly, including controlling the inflation pump to operate at a preset inflation rate to inflate the tire until the inflation change rate of the tire reaches a preset inflation rate condition, and obtaining the current tire pressure value during the tire inflation process; and controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0296] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tires in the wheel rim assembly according to the current tire pressure value and the target tire pressure value, including determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value; and controlling the inflation and deflation system to inflate the tires in the wheel rim assembly according to the output flow and the target tire pressure value.

[0297] In some embodiments, the controller 46 determines the output flow of the air pump based on the current tire pressure value and the target tire pressure value, including determining the tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and the flow calculation formula.

[0298] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including controlling the operating rate of the inflation pump according to the output flow until the inflation change rate of the tire reaches a preset inflation pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the inflation pump to shut down and controlling the inflation pump to perform a pressure maintaining action.

[0299] In some embodiments, the controller 46 controls the air pump to operate at a preset inflation rate, including cyclically controlling the air pump to operate at a first preset power to inflate the tire for a first preset time, and then controlling the air pump to operate at a second preset power to inflate the tire for a second preset time, wherein the first preset power is greater than the second preset power.

[0300] In some embodiments, the target pressure value includes a target tire pressure value, and the controller 46 controls the inflation and deflation system to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the inflation and deflation system to deflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the first tire pressure regulation inflation and deflation path and the current tire pressure value is greater than the target tire pressure value.

[0301] In some embodiments, the controller 46 controls the inflation and deflation system to deflate the tire in the wheel rim assembly, including controlling the inflation pump in the inflation and deflation system to turn off and the first and third air valves to open and the remaining air valves to close, so as to discharge the air pressure from the tire; controlling the third air valve to operate at a preset deflation rate to deflate the tire until the deflation change rate of the tire reaches a preset deflation rate condition, controlling the inflation and deflation system to enter a deflation monitoring mode to obtain the current tire pressure value during the tire deflation process; and controlling the third air valve to open to deflate the tire according to the current tire pressure value and the target tire pressure value.

[0302] In some embodiments, the controller 46 controls the third air valve to operate at a preset deflation rate, including cyclically controlling the third air valve to open for a third preset time and then controlling the third air valve to close for a fourth preset time.

[0303] In some embodiments, when the tire pressure signal is abnormal, the controller 46 controls the opening and closing states of the air valves in the integrated valve and the opening and closing states of the wheel side valves in the wheel side assembly to determine a second tire pressure regulation inflation and deflation path, including controlling the air pump in the inflation and deflation system to start and the first and second air valves in the integrated valve to open and the remaining air valves to close, the air pump outputs gas, passes through the first and second air valves into the wheel side assembly, and opens the wheel side valve in the wheel side assembly; controls the air pump to close and the first and second air valves to open and the remaining air valves to close, to determine a second tire pressure regulation inflation and deflation path.

[0304] In some embodiments, the target pressure value includes a target tire pressure value, and the controller 46 controls the inflation and deflation system to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the inflation and deflation system to inflate the tire in the wheel side assembly when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is less than the target tire pressure value.

[0305] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tire in the wheel rim assembly, including controlling the inflation pump to start and the first and second air valves to open and the remaining air valves to close, and the inflation pump outputs gas to enter the wheel rim assembly through the second tire pressure regulating inflation and deflation path; controlling the inflation pump to operate at a preset inflation rate to inflate the tire in the wheel rim assembly until the inflation change rate of the tire reaches a preset inflation rate condition, controlling the inflation and deflation system to enter an inflation monitoring mode, and obtaining the current tire pressure value during the tire inflation process; controlling the inflation and deflation system to inflate the tire in the wheel rim assembly according to the current tire pressure value and the target tire pressure value.

[0306] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tires in the wheel rim assembly according to the current tire pressure value and the target tire pressure value, including determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value; and controlling the inflation and deflation system to inflate the tires in the wheel rim assembly according to the output flow and the target tire pressure value.

[0307] In some embodiments, the controller 46 determines the output flow of the air pump based on the current tire pressure value and the target tire pressure value, including determining the tire pressure percentage value based on the current tire pressure value and the target tire pressure value; determining the output flow of the air pump based on the tire pressure percentage value and the flow calculation formula.

[0308] In some embodiments, the controller 46 controls the inflation and deflation system to inflate the tire in the wheel rim assembly according to the output flow and the target tire pressure value, including controlling the operating rate of the inflation pump according to the output flow until the inflation change rate of the tire reaches a preset inflation pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; obtaining the current tire pressure value of the tire, and when the current tire pressure value reaches the target tire pressure value, controlling the inflation pump to shut down and controlling the inflation pump to perform a pressure maintaining action.

[0309] In some embodiments, the target pressure value includes a target tire pressure value, and the controller 46 controls the inflation and deflation system to perform tire pressure regulation actions according to the tire pressure regulation inflation and deflation path and the target pressure value, including controlling the deflation system to deflate when the tire pressure regulation inflation and deflation path is the second tire pressure regulation inflation and deflation path and the current tire pressure value is greater than the target tire pressure value.

[0310] In some embodiments, the controller 46 controls the deflation system to deflate, including controlling the first air valve, the second air valve and the third air valve to open and closing the remaining air valves to discharge the air pressure in the tire; controlling the third air valve to operate at a preset deflation rate to deflate the tire in the wheel side assembly until the deflation change rate of the tire reaches the preset deflation rate, controlling the inflation and deflation system to enter the deflation monitoring mode to obtain the current tire pressure value during the tire deflation process; controlling the inflation and deflation system to perform a pressure maintaining action according to the current tire pressure value and the target tire pressure value until the current tire pressure value reaches the target tire pressure value.

[0311] In some embodiments, the controller 46 controls the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, and also includes determining that the air pressure of the space composed of the second tire pressure regulation inflation and deflation path is stable.

[0312] In some embodiments, after the controller 46 controls the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, it also includes sending the inflation state or deflation state of the wheel to a display device of the vehicle.

[0313] In some embodiments, before obtaining the pressure signal and the target pressure value in the inflation and deflation system, the method further includes: controlling the inflation and deflation system to enter a tire pressure regulation function.

[0314] In some embodiments, the controller 46 controls the inflation and deflation system to enter the tire pressure regulation function, including obtaining the vehicle speed and gear position; when the vehicle speed and gear position meet the tire pressure regulation conditions, the inflation and deflation system is controlled to enter the tire pressure regulation function.

[0315] In some embodiments, the pressure signal includes an air pressure signal, and the controller 46 determines the external inflation path of external inflation based on the pressure signal and the opening and closing status of the integrated valve in the inflation and deflation system, including when the air pressure signal is normal, controlling the fourth air valve in the integrated valve to open and the remaining air valves to close, thereby determining the first external inflation path; when the air pressure signal is abnormal, controlling the fifth air valve, the fourth air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, thereby determining the second external inflation path.

[0316] In some embodiments, the target pressure value includes a target air pressure value, and the controller 46 controls the inflation and deflation system to perform an external inflation action according to the external inflation path and the target pressure value, including when the external inflation path is a first external inflation path, the inflation pump outputs high-pressure gas to inflate the object through the first external inflation path; obtains the current pressure value of the first external inflation path; and controls the inflation and deflation system to perform an external inflation action according to the current pressure value and the target pressure value.

[0317] In some embodiments, after the controller 46 controls the inflation and deflation system to perform external inflation according to the current pressure value and the target pressure value, it also includes controlling the inflation pump and the first air valve to close when the current pressure value reaches the target pressure value.

[0318] In some embodiments, when the air pressure signal is abnormal, the controller 46 controls the fifth air valve, the fourth air valve in the integrated valve and the wheel side valve in the wheel side assembly to open and the remaining air valves to close, to determine a second external inflation path, including controlling the air pump to start and the fifth air valve to open and the remaining air valves to close, the air pump outputs gas, passes through the fifth air valve, enters the wheel side assembly, and then opens the wheel side valve; controls the air pump to close and the fourth air valve and the fifth air valve to open and the remaining air valves to close, to determine the second external inflation path.

[0319] In some embodiments, the target pressure value includes a target air pressure value, and the controller 46 controls the inflation and deflation system to perform an external inflation action according to the external inflation path and the target pressure value, including inflating the object to be inflated through the second external inflation path when the external inflation path is a second external inflation path; obtaining the current air pressure value in the second external inflation path; and controlling the inflation and deflation system to perform an external inflation action according to the current air pressure value and the target air pressure value.

[0320] In some embodiments, the controller 46 obtains the current air pressure value in the second external inflation path, including determining that when the air pressure in the second external inflation path is stable, controlling the fifth air valve and the fourth air valve to open and the remaining air valves to close, so as to control the inflation pump to output gas into the second external inflation path; obtaining the current air pressure value of the second external inflation path.

[0321] In some embodiments, after the controller 46 controls the inflation and deflation system to perform external inflation according to the current air pressure value and the target air pressure value, it also includes controlling the inflation pump and the fourth air valve to close when the current air pressure value reaches the target air pressure value.

[0322] In some embodiments, the controller 46 determines the external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and also includes sending a prompt message indicating that inflation is completed to a display device of the vehicle.

[0323] In some embodiments, the controller 46 determines that the air pressure in the second external inflation path is stable, including determining that the air pressure in the second external inflation path is stable when the current air pressure is at a preset air pressure threshold.

[0324] In some embodiments, after the controller 46 controls the air pump and the fourth air valve to close, the controller further includes adjusting the current tire pressure value of the tire in the wheel rim assembly to the initial tire pressure value.

[0325] In some embodiments, when the current pressure value is consistent with the target pressure value, the controller 46 controls the inflation and deflation system to enter the sleep mode.

[0326] According to the inflation and deflation system 10 of the embodiment of the present invention, by acquiring the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation inflation and deflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation inflation and deflation path and the target pressure value, thereby realizing the active adjustment of tire pressure by inflating and deflation of the tire without the help of manpower, making the tire pressure management and the inflation management of the external inflatable more intelligent and efficient, thereby improving the driving safety and driving comfort of the vehicle.

[0327] Reference below Fig.14 A vehicle according to an embodiment of the present invention is described.

[0328] like Fig.14 , which is a block diagram of a vehicle according to an embodiment of the present invention, the vehicle 200 includes the inflation and deflation system 10 according to the above-mentioned embodiment.

[0329] It should be noted that the vehicle 200 of the embodiment of the present invention is equipped with an air charging and discharging system including but not limited to the above-mentioned ones.

[0330] According to the vehicle of the embodiment of the present invention, after being configured with the inflation and deflation system 10 of the above embodiment, by acquiring the pressure signal and the target pressure value in the inflation and deflation system, the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation inflation and deflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation inflation and deflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower, making the tire pressure management and the inflation management of external inflatable objects more intelligent and efficient, and improving the driving safety and driving comfort of the vehicle.

[0331] The following describes a computer-readable storage medium according to an embodiment of the present invention.

[0332] The computer-readable storage medium of an embodiment of the present invention stores a control program of the inflation and deflation system. When the control program of the inflation and deflation system is executed by a processor, a device installed with the control program of the inflation and deflation system implements the control method of the inflation and deflation system of the above embodiment.

[0333] The following describes a computer program product according to an embodiment of the present invention.

[0334] The computer program product of the embodiment of the present invention includes a computer program, and when the computer program is executed by a processor, the control method of the inflation and deflation system of the above embodiment is implemented.

[0335] According to the computer program product of the embodiment of the present invention, after the above-mentioned vehicle is configured with the computer program product, the pressure signal and the target pressure value in the inflation and deflation system are obtained, and the tire pressure adjustment inflation and deflation path for tire pressure adjustment or the external inflation inflation and deflation path for external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and the inflation and deflation system is controlled to perform the tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value, or the external inflation action is performed according to the external inflation inflation and deflation path and the target pressure value, thereby realizing the active adjustment of tire pressure without the help of manpower to inflate and deflate the tire, making the tire pressure management and the inflation management of the external inflator more intelligent and efficient, thereby improving the driving safety and driving comfort of the vehicle.

[0336] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0337] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A method for controlling an air filling and deflation system, characterized in that: The gas charging and discharging system includes an integrated valve, and the control method includes: Acquire a pressure signal and a target pressure value in the inflation and deflation system; Determining a tire pressure regulation inflation and deflation path for tire pressure regulation or an external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve; The inflation and deflation system is controlled to perform a tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, or an external inflation action is performed according to the external inflation path and the target pressure value.

2. The control method of the inflation and deflation system according to claim 1, characterized in that: The pressure signal includes a tire pressure signal, and determining a tire pressure regulation inflation and deflation path for tire pressure regulation according to the pressure signal and the open and closed state of the integrated valve in the inflation and deflation system includes: When the tire pressure signal is normal, the first air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed, so as to determine a first tire pressure adjustment inflation and deflation path; When the tire pressure signal is abnormal, the opening and closing states of the air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to determine the second tire pressure regulation inflation and deflation path.

3. The control method of the inflation and deflation system according to claim 2, characterized in that: When the tire pressure signal is normal, the first air valve in the integrated valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed, and the first tire pressure adjustment inflation and deflation path is determined, including: After the air pump in the inflation and deflation system is started and the first air valve is opened and the other air valves are closed, the air pump outputs gas, which enters the wheel side assembly through the first air valve, opens the wheel side valve in the wheel side assembly, and determines the first tire pressure regulation inflation and deflation path.

4. The control method of the inflation and deflation system according to claim 3, characterized in that: The target pressure value includes a target tire pressure value, and controlling the inflation and deflation system to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value includes: When the tire pressure regulating inflation and deflation path is the first tire pressure regulating inflation and deflation path and the current tire pressure value is less than the target tire pressure value, the inflation and deflation system is controlled to inflate the tire in the wheel side assembly.

5. The control method of the inflation and deflation system according to claim 4, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly includes: Controlling the air pump to operate at a preset inflation rate to inflate the tire until the inflation rate of the tire reaches a preset inflation rate condition, and obtaining a current tire pressure value during the tire inflation process; The inflation and deflation system is controlled to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value.

6. The control method of the inflation and deflation system according to claim 5, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value includes: determining an output flow rate of the air pump according to the current tire pressure value and the target tire pressure value; The inflation and deflation system is controlled according to the output flow and the target tire pressure value to inflate the tire in the wheel rim assembly.

7. The control method of the inflation and deflation system according to claim 6, characterized in that: Determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value includes: Determining a tire pressure percentage value according to the current tire pressure value and the target tire pressure value; The output flow rate of the air pump is determined according to the tire pressure percentage value and a flow rate calculation formula.

8. The control method of the inflation and deflation system according to claim 7, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly according to the output flow and the target tire pressure value includes: Controlling the operating rate of the air pump according to the output flow until the inflation change rate of the tire reaches a preset air pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; The current tire pressure value of the tire is obtained, and when the current tire pressure value reaches the target tire pressure value, the air pump is controlled to be turned off and to perform a pressure-maintaining action.

9. The control method of the inflation and deflation system according to claim 5, characterized in that: Controlling the inflation pump to operate at a preset inflation rate includes: After cyclically controlling the air pump to operate at a first preset power to inflate the tire for a first preset time, the air pump is controlled to operate at a second preset power to inflate the tire for a second preset time, wherein the first preset power is greater than the second preset power.

10. The control method of the inflation and deflation system according to claim 3, characterized in that: The target pressure value includes a target tire pressure value, and controlling the inflation and deflation system to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value includes: When the tire pressure regulating inflation and deflation path is the first tire pressure regulating inflation and deflation path and the current tire pressure value is greater than the target tire pressure value, the inflation and deflation system is controlled to deflate the tire in the wheel side assembly.

11. The control method of the inflation and deflation system according to claim 10, characterized in that: Controlling the inflation and deflation system to deflate the tire in the wheel assembly includes: Controlling the air pump in the air inflation and deflation system to be turned off, the first air valve and the third air valve to be opened, and the remaining air valves to be closed, so as to discharge the air pressure of the tire; Controlling the third air valve to operate at a preset deflation rate to deflate the tire until the deflation rate of the tire reaches a preset deflation rate condition, and controlling the inflation and deflation system to enter a deflation monitoring mode to obtain a current tire pressure value during the tire deflation process; The third air valve is controlled to open to deflate the tire according to the current tire pressure value and the target tire pressure value.

12. The control method of the inflation and deflation system according to claim 11, characterized in that: Controlling the third air valve to operate according to a preset deflation rate comprises: After cyclically controlling the third air valve to be opened for a third preset time, the third air valve is controlled to be closed for a fourth preset time.

13. The control method of the inflation and deflation system according to claim 2, characterized in that: When the tire pressure signal is abnormal, controlling the opening and closing state of the air valve in the integrated valve and the opening and closing state of the wheel side valve in the wheel side assembly to determine the second tire pressure regulation inflation and deflation path includes: After the air pump in the air charging and discharging system is started and the first air valve and the second air valve in the integrated valve are opened and the remaining air valves are closed, the air pump outputs gas, which enters the wheel side assembly through the first air valve and the second air valve, and opens the wheel side valve in the wheel side assembly; The air pump is controlled to be closed, the first air valve and the second air valve are controlled to be opened, and the remaining air valves are controlled to be closed, so as to determine the second tire pressure regulation inflation and deflation path.

14. The control method of the inflation and deflation system according to claim 13, characterized in that: The target pressure value includes a target tire pressure value, and controlling the inflation and deflation system to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value includes: When the tire pressure regulating inflation and deflation path is the second tire pressure regulating inflation and deflation path and the current tire pressure value is less than the target tire pressure value, the inflation and deflation system is controlled to inflate the tire in the wheel side assembly.

15. The control method of the inflation and deflation system according to claim 14, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly includes: Controlling the air pump to start, the first air valve and the second air valve to open, and the remaining air valves to close, so that the air pump outputs gas that enters the wheel side assembly through the second tire pressure regulating and deflation path; Controlling the air pump to operate at a preset inflation rate to inflate the tire in the wheel assembly until the inflation rate of the tire reaches a preset inflation rate condition, controlling the inflation and deflation system to enter an inflation monitoring mode, and obtaining a current tire pressure value during the tire inflation process; The inflation and deflation system is controlled to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value.

16. The control method of the inflation and deflation system according to claim 15, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly according to the current tire pressure value and the target tire pressure value includes: determining an output flow rate of the air pump according to the current tire pressure value and the target tire pressure value; The inflation and deflation system is controlled according to the output flow and the target tire pressure value to inflate the tire in the wheel rim assembly.

17. The control method of the inflation and deflation system according to claim 16, characterized in that: Determining the output flow of the air pump according to the current tire pressure value and the target tire pressure value includes: Determining a tire pressure percentage value according to the current tire pressure value and the target tire pressure value; The output flow rate of the air pump is determined according to the tire pressure percentage value and a flow rate calculation formula.

18. The control method of the inflation and deflation system according to claim 17, characterized in that: Controlling the inflation and deflation system to inflate the tire in the wheel assembly according to the output flow and the target tire pressure value includes: Controlling the operating rate of the air pump according to the output flow until the inflation change rate of the tire reaches a preset air pump power reduction condition, and then controlling the inflation and deflation system to enter an ultra-high frequency mode to inflate the tire; The current tire pressure value of the tire is obtained, and when the current tire pressure value reaches the target tire pressure value, the air pump is controlled to be turned off and to perform a pressure-maintaining action.

19. The control method of the inflation and deflation system according to claim 13, characterized in that: The target pressure value includes a target tire pressure value, and controlling the inflation and deflation system to perform a tire pressure adjustment action according to the tire pressure adjustment inflation and deflation path and the target pressure value includes: When the tire pressure regulating inflation and deflation path is the second tire pressure regulating inflation and deflation path and the current tire pressure value is greater than the target tire pressure value, the deflation system is controlled to deflate.

20. The control method of the inflation and deflation system according to claim 19, characterized in that: Controlling the deflation system to deflate includes: Controlling the first air valve, the second air valve and the third air valve to open and the remaining air valves to close, so as to discharge the air pressure in the tire; Controlling the third air valve to operate at a preset deflation rate to deflate the tire in the wheel assembly until the deflation change rate of the tire reaches the preset deflation rate, and controlling the inflation and deflation system to enter a deflation monitoring mode to obtain a current tire pressure value during the tire deflation process; The inflation and deflation system is controlled to perform a pressure-maintaining action according to the current tire pressure value and the target tire pressure value until the current tire pressure value reaches the target tire pressure value.

21. The control method of the inflation and deflation system according to claim 14 or 19, characterized in that: The process of controlling the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value also includes: Determine that the air pressure in the space formed by the second tire pressure regulation inflation and deflation path is stable.

22. The control method of the inflation and deflation system according to claim 1, characterized in that: After controlling the inflation and deflation system to perform the tire pressure regulation action according to the tire pressure regulation inflation and deflation path and the target pressure value, the method further includes: The inflation status or deflation status of the wheel is sent to a display device of the vehicle.

23. The control method of the inflation and deflation system according to claim 2, characterized in that: Before obtaining the pressure signal and the target pressure value in the inflation and deflation system, the method further includes: The inflation and deflation system is controlled to enter a tire pressure regulation function.

24. The control method of the inflation and deflation system according to claim 23, characterized in that: Controlling the inflation and deflation system to enter the tire pressure regulation function includes: Get the vehicle's speed and gear position; When the vehicle speed and the gear position meet the tire pressure adjustment conditions, the inflation and deflation system is controlled to enter the tire pressure adjustment function.

25. The control method of the inflation and deflation system according to claim 1, characterized in that: The pressure signal includes an air pressure signal, and determining an external inflation path for external inflation according to the pressure signal and an open / closed state of an integrated valve in the inflation / deflation system includes: When the air pressure signal is normal, the fourth air valve in the integrated valve is controlled to open and the other air valves are controlled to close, thereby determining the first external inflation path; When the air pressure signal is abnormal, the fifth air valve in the integrated valve, the fourth air valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine the second external inflation path.

26. The control method of the inflation and deflation system according to claim 25, characterized in that: The target pressure value includes a target air pressure value, and controlling the inflation and deflation system to perform an external inflation action according to the external inflation path and the target pressure value includes: When the external inflation path is the first external inflation path, the inflation pump outputs high-pressure gas to inflate the inflatable object through the first external inflation path; Acquiring a current pressure value of the first external inflation path; The inflation and deflation system is controlled to perform an external inflation action according to the current pressure value and the target pressure value.

27. The control method of the inflation and deflation system according to claim 26, characterized in that: After controlling the inflation and deflation system to perform external inflation according to the current pressure value and the target pressure value, the method further includes: When the current pressure value reaches the target pressure value, the air pump and the first air valve are controlled to close.

28. The control method of the inflation and deflation system according to claim 25, characterized in that: When the air pressure signal is abnormal, the fifth air valve in the integrated valve, the fourth air valve and the wheel side valve in the wheel side assembly are controlled to open and the remaining air valves are closed to determine the second external inflation path, including: When the air pump is started and the fifth air valve is opened and the other air valves are closed, the air pump outputs gas, passes through the fifth air valve, enters the wheel side assembly, and then opens the wheel side valve; The air pump is controlled to be closed, the fourth air valve and the fifth air valve are controlled to be opened, and the remaining air valves are controlled to be closed, so as to determine the second external air charging path.

29. The control method of the inflation and deflation system according to claim 28, characterized in that: The target pressure value includes a target air pressure value, and controlling the inflation and deflation system to perform an external inflation action according to the external inflation path and the target pressure value includes: When the external inflation path is the second external inflation path, the inflatable object is inflated through the second external inflation path; Acquiring a current air pressure value in the second external inflation path; The inflation and deflation system is controlled to perform an external inflation action according to the current air pressure value and the target air pressure value.

30. The control method of the inflation and deflation system according to claim 29, characterized in that: Acquiring a current air pressure value in the second external inflation path includes: When it is determined that the air pressure in the second external inflation path is stable, the fifth air valve and the fourth air valve are controlled to open and the remaining air valves are closed, so as to control the air pump to output the gas into the second external inflation path; The current air pressure value of the second external inflation path is obtained.

31. The control method of the inflation and deflation system according to claim 29, characterized in that: After controlling the inflation and deflation system to perform external inflation according to the current air pressure value and the target air pressure value, the method further includes: When the current air pressure value reaches the target air pressure value, the air pump and the fourth air valve are controlled to close.

32. The control method of the inflation and deflation system according to claim 25, characterized in that: The external inflation path of the external inflation is determined according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system, and also includes: sending a prompt message of inflation completion to the display device of the vehicle.

33. The control method of the inflation and deflation system according to claim 29, characterized in that: The inflation and deflation system also includes a control panel, and the inflation interface of the inflated object is arranged on the control panel.

34. The control method of the inflation and deflation system according to claim 30, characterized in that: Determining that the air pressure in the second external inflation path is stable includes: When the current air pressure is at a preset air pressure threshold, it is determined that the air pressure in the second external inflation path is stable.

35. The control method of the inflation and deflation system according to claim 31, characterized in that: After controlling the air pump and the fourth air valve to close, the method further comprises: The current tire pressure value of the tire in the wheel rim assembly is adjusted to the initial tire pressure value.

36. The control method of the inflation and deflation system according to claim 25, characterized in that: Also includes: When the current pressure value is consistent with the target pressure value, the inflation and deflation system is controlled to enter a sleep mode.

37. A gas filling and deflation system, characterized in that: include: An air pump for outputting gas; An integrated valve connected to the air pump, and configured to open or close upon receiving a tire pressure adjustment instruction or an inflation / deflation control instruction; A controller is connected to the inflation pump and the integrated valve, respectively, and is used to obtain the pressure signal and the target pressure value in the inflation and deflation system; determine the tire pressure regulation inflation and deflation path for tire pressure regulation, or the external inflation path for external inflation according to the pressure signal and the opening and closing state of the integrated valve in the inflation and deflation system; control the inflation and deflation system to perform tire pressure regulation according to the tire pressure regulation inflation and deflation path and the target pressure value, or perform external inflation according to the external inflation path and the target pressure value.

38. The inflation and deflation system according to claim 37, characterized in that: The inflation and deflation system further comprises: The wheel side assembly is connected with the integrated valve.

39. A vehicle, characterized in that: include: An inflation and deflation system as claimed in claim 37 or 38.

40. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a control program for the inflation and deflation system. When the control program for the inflation and deflation system is executed by the processor, the device installed with the control program for the inflation and deflation system implements the control method for the inflation and deflation system as described in any one of claims 1-36.

41. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the control method of the inflation and deflation system as described in any one of claims 1 to 36 is implemented.

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