Exhaust control method for air suspension of vehicle, vehicle, and storage medium

Abstract

The application discloses an air exhaust control method of an air suspension of a vehicle, a vehicle and a storage medium, and relates to the technical field of vehicle air suspensions. The air exhaust control method of the air suspension of the vehicle comprises the following steps: obtaining a first air pressure signal of a gas distribution valve of the vehicle; determining a first air pressure value according to the first air pressure signal; in response to the first air pressure value being greater than or equal to a preset value, determining a first value of an exhaust valve opening degree according to a differential-integral-proportion control algorithm; and controlling the target vehicle to perform air exhaust according to the first value. The application solves the technical problem that the exhaust speed is slow when the noise level is reduced in the process of vehicle air exhaust in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent driving, in particular to an air suspension exhaust control method of a vehicle, a vehicle and a storage medium. BACKGROUND

[0002] During the driving process of the vehicle, air supply and exhaust operation needs to be performed, and the unit performing the air supply and exhaust operation is an air suspension air supply unit. The air suspension air supply unit generally includes a controller, an air compressor, a gas distribution valve and an air inlet and exhaust assembly. During the driving process of the vehicle, the air needs to be discharged through the air inlet and exhaust assembly in order to reduce the height of the vehicle body. A muffler is arranged in the air inlet and exhaust assembly to reduce the exhaust noise. The greater the resistance of the muffler, the smaller the exhaust noise, but at the same time, the exhaust speed is also reduced accordingly, and the two are contradictory.

[0003] In actual application, the exhaust noise of the vehicle is abrupt at the initial stage, the noise is large at the initial stage of exhaust and small at the final stage. The means for solving the problem of large noise at the initial stage of exhaust in the prior art is to increase the resistance of the muffler, but solving this problem also reduces the exhaust speed of the whole process. Therefore, how to reduce the abrupt feeling at the initial stage of exhaust and improve the exhaust speed while controlling the noise level of the exhaust process is a difficulty in the technical field.

[0004] At present, no effective solution has been proposed for the above problems. SUMMARY

[0005] The air suspension exhaust control method of the vehicle, the vehicle and the storage medium provided by the embodiments of the present application at least solve the technical problem in the prior art that the exhaust speed is affected when the noise level is reduced during the exhaust process of the vehicle.

[0006] According to one of the embodiments of the present application, an air suspension exhaust control method of a vehicle is provided, which includes: acquiring a first air pressure signal of a gas distribution valve of the vehicle, determining a first air pressure value according to the first air pressure signal, in response to the first air pressure value being greater than or equal to a preset value, determining a first value of an exhaust valve opening degree according to a differential-integral-proportional control algorithm, and controlling the vehicle to exhaust according to the first value.

[0007] Optionally, the air suspension exhaust control method of the vehicle further includes: in response to the first air pressure value being less than the preset value, determining a second value of the exhaust valve opening degree, wherein the second value is greater than the first value, and controlling the vehicle to exhaust according to the second value.

[0008] Optionally, the air exhaust control method of the air suspension of the vehicle further comprises: determining an air exhaust time length of the vehicle in response to a target signal sent by a vehicle controller of the vehicle, wherein the target signal is used to indicate that the vehicle needs to be exhausted, and obtaining the air pressure signal in response to the air exhaust time length being greater than a preset time length.

[0009] Optionally, the air exhaust control method of the air suspension of the vehicle further comprises: determining a third value of the exhaust valve opening in response to the air exhaust time length being less than or equal to the preset time length, wherein the second value is greater than the third value.

[0010] Optionally, the air exhaust control method of the air suspension of the vehicle further comprises: controlling the air distribution valve and the air compressor of the vehicle to open the exhaust passage, and controlling the vehicle to be exhausted according to the first value when the exhaust passage is in an open state.

[0011] Optionally, the air exhaust control method of the air suspension of the vehicle further comprises: obtaining a second air pressure signal of the air distribution valve, determining a second air pressure value according to the second air pressure signal, and determining a second value of the exhaust valve opening in response to the second air pressure value being less than a preset value, wherein the second value is greater than the first value, and controlling the vehicle to be exhausted according to the second value.

[0012] Optionally, the air exhaust control method of the air suspension of the vehicle further comprises: determining a fourth value of the exhaust valve opening according to a differential-integral-proportional control algorithm in response to the second air pressure value being greater than or equal to the preset value, wherein the second value is greater than the fourth value; and controlling the vehicle to be exhausted according to the fourth value.

[0013] According to an embodiment of the present application, an air exhaust control device of an air suspension of a vehicle is provided, comprising: an obtaining module configured to obtain a first air pressure signal of an air distribution valve; a first determining module configured to determine a first air pressure value according to the first air pressure signal; a second determining module configured to determine a first value of an exhaust valve opening according to a differential-integral-proportional control algorithm in response to the first air pressure value being greater than or equal to a preset value; and a first control module configured to control the vehicle to be exhausted according to the first value.

[0014] According to an embodiment of the present application, a vehicle is provided, comprising a memory and a processor, the memory stores a computer program, and the processor is configured to run the computer program to execute the air exhaust control method of the air suspension of the vehicle in any of the above embodiments.

[0015] According to an embodiment of the present application, a non-volatile storage medium is provided, the non-volatile storage medium stores a computer program, and the computer program is configured to execute the air exhaust control method of the air suspension of the vehicle in any of the above embodiments when running.

[0016] In the embodiment of the present application, the first air pressure signal of the gas distribution valve of the vehicle is acquired, the first air pressure value is determined according to the first air pressure signal, the first value of the exhaust valve opening degree is determined according to the differential-integral-proportional control algorithm in response to the first air pressure value being greater than or equal to the preset value, and the target vehicle is controlled to exhaust according to the first value. The purpose of determining the exhaust valve opening degree value based on the differential-integral-proportional control algorithm is achieved, thereby realizing the technical effect of reducing the noise during the exhaust process of the vehicle and improving the exhaust speed of the vehicle, and further solving the technical problem of slow exhaust speed when reducing the noise level during the exhaust process of the vehicle in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0018] Figure 1 is a flow chart of an exhaust control method of an air suspension of a vehicle according to an embodiment of the present application;

[0019] Figure 2 is a structural diagram of an air supply unit of an air suspension according to an embodiment of the present application;

[0020] Figure 3 is a flow chart of an exhaust control process of an air suspension of a vehicle according to an embodiment of the present application;

[0021] Figure 4 is a flow chart of an exhaust control process of an air suspension of a vehicle according to an embodiment of the present application;

[0022] Figure 5 is a structural block diagram of an exhaust control device of an air suspension of a vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the present application.

[0024] It should be noted that the terms "first", "second", and the like in the description and in the claims of the application and in the above-described drawings are intended to distinguish similar objects and not necessarily to describe a particular chronological or sequential order. It should be understood that the terms so used are interchangeable under appropriate circumstances and that the embodiments of the application described herein are capable of functioning in other sequences than the one described or illustrated herein. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are intended to cover non-exclusive inclusions, such that processes, methods, systems, products, or apparatuses that comprise, include, or the like a list of steps or elements are not necessarily limited to those steps or elements specifically listed, but can include other steps or elements not expressly listed or inherent to such processes, methods, systems, products, or apparatuses.

[0025] According to an embodiment of the application, an embodiment of a method for controlling air exhaust of an air suspension of a vehicle is provided. It should be noted that the steps shown in the flowcharts of the drawings can be executed in a computer system comprising at least one set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0026] The method embodiment can also be executed in an electronic device comprising a memory and a processor, a similar control device, or a vehicle terminal. Taking the vehicle terminal as an example, the vehicle terminal can comprise one or more processors and a memory for storing data. Optionally, the vehicle terminal can further comprise a communication device for communication function and a display device. Those skilled in the art can understand that the above structural description is merely illustrative, and does not limit the structure of the vehicle terminal. For example, the vehicle terminal can comprise more or less components than the above structural description, or have a different configuration from the above structural description.

[0027] The processor can include one or more processing units. For example, the processor can include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microcontroller unit (MCU), a field-programmable gate array (FPGA), a neural-network processing unit (NPU), a tensor processing unit (TPU), an artificial intelligent (AI) type processor, or the like. Different processing units can be independent components or integrated in one or more processors. In some examples, the electronic device can also include one or more processors.

[0028] The memory can be used to store a computer program, for example, a computer program corresponding to the control method of the target vehicle in the embodiments of the present application. The processor can implement the control method of the target vehicle by running the computer program stored in the memory. The memory can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory can further include a memory remotely arranged with respect to the processor, and these remote memories can be connected to the electronic device through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof.

[0029] The communication device is used to receive or send data via a network. Specific examples of the network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the communication device includes a network interface controller (NIC) which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the communication device can be a radio frequency (RF) module which is used to communicate with the Internet in a wireless manner. In some embodiments of the present application, the communication device is used to connect with mobile devices such as mobile phones and tablets, and can send instructions to the vehicle terminal through the mobile devices.

[0030] The display device can be a touch screen type liquid crystal display (LCD) and a touch display (also referred to as a "touch screen" or "touch display screen"). The liquid crystal display can enable a user to interact with a user interface of the in-vehicle terminal. In some embodiments, the in-vehicle terminal described above has a graphical user interface (GUI) with which a user can interact with the GUI through finger contacts and / or gestures on a touch-sensitive surface, where the human-machine interaction function can include a vehicle gear shifting function, and executable instructions for performing the human-machine interaction function are configured / stored in one or more computer program products or readable storage media executable by a processor.

[0031] Figure 1 is a flowchart of an air exhaust control method of an air suspension of a vehicle according to an embodiment of the present application, as shown in Figure 1 , the method comprises the following steps:

[0032] In step S102, a first air pressure signal of a gas distribution valve of the vehicle is acquired.

[0033] Optionally, the execution subject of the present embodiment is an air suspension controller, and it should be noted that other electronic devices and processors can also be execution subjects, which are not limited here.

[0034] In the technical solution provided in the above step S102 of the present application, the air suspension controller can acquire the first air pressure signal in the gas distribution valve through the pressure sensor.

[0035] Specifically, the vehicle is a started vehicle, i.e., the vehicle is a vehicle that needs to be supplied with air and exhaust during driving. Optionally, the model, size and performance of the vehicle are not limited in the present application, as long as the vehicle is during driving.

[0036] Specifically, the air suspension unit is a device that can adjust the suspension system of the vehicle, which adjusts the height and hardness of the vehicle by charging and discharging pressure. It is usually composed of a gas cylinder, a load sensor, an electric controller and a pipeline connected between the vehicle body and the tire. The air suspension unit can improve the driving comfort and stability of the vehicle, and improve the ground clearance of the vehicle under various road conditions.

[0037] Optionally, as shown in Figure 2 , the air suspension controller is used to control the entire air suspension air supply unit, wherein the air suspension air supply unit comprises an air compressor, a gas distribution valve, a silencer and a plurality of air springs.

[0038] Optionally, before the vehicle performs the exhaust operation, the air suspension unit should also be inflated first, wherein the inflation operation can include: the gas flows into the gas distribution valve through the air compressor, and then the gas flowing in is distributed into the plurality of air springs through the gas distribution valve.

[0039] In step S104, a first air pressure value is determined according to the first air pressure signal.

[0040] In the technical solution provided in step S104 of the present application, the air suspension controller can determine the first air pressure value according to the first air pressure signal obtained above.

[0041] In step S106, in response to the first air pressure value being greater than or equal to a preset value, a first value of the exhaust valve opening is determined according to a differential-integral-proportional control algorithm.

[0042] In the technical solution provided in step S106 of the present application, as shown in the figure, Figure 4 the air suspension controller can compare the obtained first air pressure value with the preset value, and when the first air pressure value is greater than the preset value, the air suspension controller can determine the opening of the exhaust valve according to a differential-integral-proportional (PID) control algorithm, and obtain the first value of the exhaust valve opening.

[0043] Specifically, the preset value can be an empirical value, and when the current air pressure in the gas distribution valve is the preset value, it indicates that the noise value at this air pressure is the maximum acceptable noise value.

[0044] Optionally, during the vehicle exhaust process, if the loop air pressure is higher than a certain value (i.e., the preset value), the exhaust noise is large. At this time, the air suspension controller can perform PID control according to the actual loop air pressure signal, and the target is to maintain the loop air pressure value at the preset value. This PID control process can maximize the exhaust speed while controlling the exhaust noise.

[0045] Optionally, the differential-integral-proportional (PID) control algorithm is a commonly used control algorithm in the prior art, and will not be described further here.

[0046] In step S108, the vehicle is controlled to perform the exhaust operation according to the first value.

[0047] In the technical solution provided in step S108 of the present application, when the air suspension controller determines the first value of the exhaust valve opening, the exhaust valve can be controlled to open according to the opening of the first value, and the vehicle is controlled to perform the exhaust operation.

[0048] Optionally, the air in the air springs is discharged to the gas distribution valve, the pressure sensor in the gas distribution valve detects the pressure signal, the air is discharged to the air compressor, and then discharged through the exhaust valve of the air compressor and the muffler.

[0049] The steps S102 to S108 can know that, in the present application, the first air pressure signal of the gas distribution valve of the vehicle is acquired, the first air pressure value is determined according to the first air pressure signal, the first value of the exhaust valve opening degree is determined according to the differential-integral-proportional control algorithm in response to the first air pressure value being greater than or equal to the preset value, and the target vehicle is controlled according to the first value to exhaust, which achieves the purpose of determining the exhaust valve opening degree value based on the differential-integral-proportional control algorithm, thereby realizing the technical effect of reducing the noise during the exhaust process of the vehicle and improving the exhaust speed of the vehicle, and further solving the technical problem of slow exhaust speed when reducing the noise level during the exhaust process of the vehicle in the prior art.

[0050] The above method of the embodiment will be further described in detail. As an optional implementation, in response to the first air pressure value being less than the preset value, a second value of the exhaust valve opening degree is determined, wherein the second value is greater than the first value, and the vehicle is controlled to exhaust according to the second value.

[0051] In this embodiment, the air suspension controller can compare the acquired first air pressure value with the preset value. When the first air pressure value is less than the preset value, the air suspension controller can determine that the air pressure value in the gas distribution valve is smaller at this time, and the noise during the exhaust process of the vehicle is smaller at this time, so the opening degree of the exhaust valve can be increased, and the opening degree of the exhaust valve at this time is determined as a second value, wherein the second value is greater than the first value. As an optional implementation, in response to the target signal sent by the vehicle controller of the vehicle, the exhaust time length of the vehicle is determined, wherein the target signal is used to represent that the vehicle needs to be exhausted; and in response to the exhaust time length being greater than a preset time length, the air pressure signal is acquired.

[0052] In this embodiment, as shown in Figure 3 When the air suspension controller receives the signal of starting exhaust sent by the vehicle controller of the vehicle, the exhaust time length of the vehicle is determined, and when the exhaust time length of the vehicle at this time is greater than a preset time length, the air pressure signal acquired by the air pressure sensor in the gas distribution valve is started to be acquired.

[0053] Optionally, the preset time length can be an empirical value, which can be set to 2s in actual application to achieve better exhaust effect.

[0054] As an optional embodiment, in response to the exhaust time length being less than or equal to the preset time length, a third value of the exhaust valve opening degree is determined, wherein the second value is greater than the third value. In this embodiment, as shown in FIG. 3, when the air suspension controller receives a signal of starting exhaust from the vehicle controller, the exhaust time length of the vehicle at this time is determined. When the exhaust time length of the vehicle at this time is less than the preset time length, it indicates that the current vehicle is in the initial stage of exhaust. At this time, the air suspension controller can set the opening degree value of the exhaust valve to a third value, wherein the third value is less than the second value. Figure 3

[0055] Specifically, in the initial stage of the vehicle exhaust process, the exhaust noise is the largest and the sound is abrupt, and the perception quality is poor. At this time, the air suspension controller can control the exhaust valve to a smaller opening degree to slow down the exhaust speed, thereby reducing the exhaust noise and reducing the abruptness, which can significantly improve the technical effect of improving the perception quality.

[0056] As an optional embodiment, in step S108, the gas distribution valve and the air compressor of the vehicle are controlled to open the exhaust passage. In the open state of the exhaust passage, the vehicle is controlled to exhaust according to the first value.

[0057] In this embodiment, the vehicle is controlled to exhaust according to the first value, which includes the following steps: the air suspension controller can control the gas distribution valve and the air compressor of the vehicle to open the exhaust passage. The gas is discharged to the air compressor through the gas distribution valve, and then discharged to the muffler through the exhaust valve of the air compressor, wherein the opening degree value of the exhaust valve is set to the first value.

[0058] As an optional embodiment, a second gas pressure signal of the gas distribution valve is obtained, a second gas pressure value is determined according to the second gas pressure signal, and in response to the second gas pressure value being less than a preset value, a second value of the exhaust valve opening degree is determined, wherein the second value is greater than the first value, and the vehicle is controlled to exhaust according to the second value. In this embodiment, after the air suspension controller controls the vehicle to exhaust according to the first value, the following steps are further included: the second gas pressure signal in the gas distribution valve is obtained again, and a second gas pressure value is determined according to the second gas pressure signal. The obtained second gas pressure value is compared with the above-mentioned preset value again. When the second gas pressure value is less than the preset value, it indicates that the gas pressure in the current gas distribution valve is small, i.e., the noise of the current exhaust operation is small. At this time, the current exhaust valve opening degree value can be increased to the second value, and the vehicle is controlled to exhaust according to the second value.

[0059] ​As an optional implementation, in response to the second air pressure value being greater than or equal to the preset value, a fourth value of the exhaust valve opening degree is determined according to the derivative-integral-proportional control algorithm, wherein the second value is greater than the fourth value, and the vehicle is controlled to perform the exhaust according to the fourth value. In this embodiment, the above operation further includes the following steps: comparing the obtained second air pressure value with the preset value again, and when the second air pressure value is greater than the preset value, it indicates that the air pressure in the gas distribution valve is still greater than the preset value after the exhaust operation, i.e., the noise level corresponding to the current air pressure is greater than the maximum acceptable level, so the air suspension controller should control the gas distribution valve to continue the exhaust operation.

[0060] Specifically, the air suspension controller can determine a fourth value of the exhaust valve opening degree according to the derivative-integral-proportional control algorithm again, and perform the exhaust operation according to the fourth value. Alternatively, after performing the exhaust operation according to the fourth value, the air pressure value in the gas distribution valve can be detected again, and if the detected air pressure value is still greater than the preset value, the opening degree value of the exhaust valve is adjusted according to the derivative-integral-proportional control algorithm again, and the exhaust operation is continued until the air pressure value in the gas distribution valve is less than the preset value after a certain exhaust operation, at which time the opening degree value of the exhaust valve is determined as the second value, and the exhaust operation is performed according to the second value until the exhaust is completed.

[0061] From the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be realized by means of software and a general hardware platform as required, and of course can also be realized by hardware, but in many cases the former is a better implementation. Based on such understanding, the technical solutions of the present application or the parts that make contributions to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a plurality of instructions for causing a terminal device (which can be a mobile phone, a computer, a server, or a grid device) to execute the method of each embodiment of the present application.

[0062] In this embodiment, an air suspension exhaust control device of a vehicle is also provided, which is used to implement the above embodiments and preferred embodiments, and will not be described again. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, hardware or a combination of software and hardware is also possible and contemplated.

[0063] Figure 5 is a structural block diagram of an air suspension exhaust control device 500 of a vehicle according to an embodiment of the present application, as Figure 5As shown, the device comprises: an acquisition module 501, a first determination module 502, a second determination module 503, and a control module 504.

[0064] The acquisition module 501 is configured to acquire a first gas pressure signal of a gas distribution valve.

[0065] The first determination module 502 is configured to determine a first gas pressure value according to the first gas pressure signal.

[0066] The second determination module 503 is configured to determine a first value of the exhaust valve opening according to a differential-integral-proportional control algorithm in response to the first gas pressure value being greater than or equal to a preset value.

[0067] The first control module 504 is configured to control the vehicle to exhaust according to the first value.

[0068] Optionally, the exhaust control device 500 of the air suspension of the vehicle further comprises: a third determination module configured to determine a second value of the exhaust valve opening in response to the first gas pressure value being less than the preset value, wherein the second value is greater than the first value; and a second control module configured to control the vehicle to exhaust according to the second value.

[0069] Optionally, the acquisition module 501 comprises: a first determination unit configured to determine an exhaust time length of the vehicle in response to a target signal sent by a vehicle controller of the vehicle, wherein the target signal is used to indicate that the vehicle needs to be exhausted; and a first acquisition unit configured to acquire the gas pressure signal in response to the exhaust time length being greater than a preset time length.

[0070] Optionally, the acquisition module 501 further comprises: a second determination unit configured to determine a third value of the exhaust valve opening in response to the exhaust time length being less than or equal to the preset time length, wherein the second value is greater than the third value.

[0071] Optionally, the first control module 504 comprises: a first control unit configured to control the gas distribution valve and an air compressor of the vehicle to open an exhaust passage; and a second control unit configured to control the vehicle to exhaust according to the first value when the exhaust passage is in an open state.

[0072] Optionally, the first control module 504 further comprises: a second acquisition unit configured to acquire a second gas pressure signal of the gas distribution valve; a third determination unit configured to determine a second gas pressure value according to the second gas pressure signal; a fourth determination unit configured to determine a second value of the exhaust valve opening in response to the second gas pressure value being less than the preset value, wherein the second value is greater than the first value; and a third control unit configured to control the vehicle to exhaust according to the second value.

[0073] Optionally, the first control module 504 further comprises a fifth determining unit, configured to determine a fourth value of the exhaust valve opening degree according to a differential-integral-proportional control algorithm in response to the second gas pressure value being greater than or equal to a preset value, wherein the second value is greater than the fourth value; and a fourth control unit, configured to control the vehicle to exhaust according to the fourth value.

[0074] Embodiments of the present application also provide a vehicle comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to perform the control method of the target vehicle described above.

[0075] Optionally, in the embodiment, the vehicle described above can be configured to store a computer program for performing the following steps:

[0076] Step S102, obtaining a first gas pressure signal of a gas distribution valve of the vehicle;

[0077] Step S104, determining a first gas pressure value according to the first gas pressure signal;

[0078] Step S106, determining a first value of the exhaust valve opening degree according to a differential-integral-proportional control algorithm in response to the first gas pressure value being greater than or equal to a preset value;

[0079] Step S108, controlling the vehicle to exhaust according to the first value.

[0080] Optionally, specific examples in the embodiment can refer to the examples described in the above embodiments and optional implementation manners, and the embodiment will not be described here.

[0081] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0082] In some embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described device embodiments are only schematic, for example, the division of units can be a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units can be indirect coupling or communication connection through some interfaces, units or modules, and can be electrical or other forms.

[0083] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed to multiple units. Part or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.

[0084] In addition, each functional unit in various embodiments of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0085] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part of the prior art that essentially contributes or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a grid device, etc.) to execute all or part of the steps of the various embodiment methods of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk, and various program code storage media.

[0086] The above is only the preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An exhaust control method of an air suspension of a vehicle, characterized by, The method comprises: acquiring a first gas pressure signal of a gas distribution valve of the vehicle; determining a first gas pressure value according to the first gas pressure signal; in response to the first gas pressure value being greater than or equal to a preset value, determining a first value of the exhaust valve opening degree according to a differential-integral-proportional control algorithm; performing differential-integral-proportional control according to a loop actual gas pressure signal, with a target of maintaining a loop gas pressure value at the preset value, wherein the exhaust noise is large when the loop gas pressure value is higher than the preset value; controlling the vehicle to perform exhaust according to the first value; wherein the method further comprises: in response to the first gas pressure value being less than the preset value, determining a second value of the exhaust valve opening degree, wherein the second value is greater than the first value; and controlling the vehicle to perform exhaust according to the second value; acquiring the gas pressure signal of the gas distribution valve comprises: in response to a target signal sent by a vehicle controller of the vehicle, determining an exhaust time length of the vehicle, wherein the target signal is used to represent that the vehicle needs to perform exhaust; and in response to the exhaust time length being greater than a preset time length, acquiring the gas pressure signal; in response to the exhaust time length being less than or equal to the preset time length, determining a third value of the exhaust valve opening degree, wherein the second value is greater than the third value.

2. The air exhaust control method of an air suspension of a vehicle according to claim 1, characterized by, controlling the vehicle to perform exhaust according to the first value comprises: controlling the gas distribution valve and an air compressor of the vehicle to open an exhaust passage; controlling the vehicle to perform exhaust according to the first value when the exhaust passage is in an open state.

3. The air exhaust control method of an air suspension of a vehicle according to claim 1, characterized by, after controlling the vehicle to perform exhaust according to the first value, the method further comprises: acquiring a second gas pressure signal of the gas distribution valve; determining a second gas pressure value according to the second gas pressure signal; in response to the second gas pressure value being less than the preset value, determining a second value of the exhaust valve opening degree, wherein the second value is greater than the first value; controlling the vehicle to perform exhaust according to the second value.

4. The air exhaust control method of an air suspension of a vehicle according to claim 3, characterized by, the method further comprises: in response to the second gas pressure value being greater than or equal to the preset value, determining a fourth value of the exhaust valve opening degree according to a differential-integral-proportional control algorithm, wherein the second value is greater than the fourth value; controlling the vehicle to perform exhaust according to the fourth value.

5. An air exhaust control device of an air suspension of a vehicle, characterized by, The method comprises: an acquiring module, configured to acquire a first gas pressure signal of a gas distribution valve; a first determining module, configured to determine a first gas pressure value according to the first gas pressure signal; a second determining module, configured to, in response to the first gas pressure value being greater than or equal to a preset value, determine a first value of the exhaust valve opening degree according to a differential-integral-proportional control algorithm; the device is configured to perform differential-integral-proportional control according to a loop actual gas pressure signal, with a target of maintaining a loop gas pressure value at the preset value, wherein the exhaust noise is large when the loop gas pressure value is higher than the preset value; a first control module, configured to control the vehicle to perform exhaust according to the first value; The third determining module is configured to determine a second value of the exhaust valve opening degree in response to the first air pressure value being less than a preset value, wherein the second value is greater than the first value; and control the vehicle to perform exhaust according to the second value. The obtaining module comprises a first determining unit and a first obtaining unit. The first determining unit is configured to determine an exhaust time length of the vehicle in response to a target signal sent by a vehicle controller of the vehicle, wherein the target signal is used to indicate that the vehicle needs to perform exhaust. The first obtaining unit is configured to obtain the air pressure signal in response to the exhaust time length being greater than a preset time length. The obtaining module further comprises a second determining unit configured to determine a third value of the exhaust valve opening degree in response to the exhaust time length being less than or equal to the preset time length, wherein the second value is greater than the third value.

6. A vehicle comprising a memory and a processor, characterized in that The memory stores a computer program, and the processor is configured to execute the computer program to perform the exhaust control method of the air suspension of the vehicle according to any one of claims 1 to 4.

7. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, wherein the computer program is configured to perform the exhaust control method of the air suspension of the vehicle according to any one of claims 1 to 4 when running on a computer or a processor.

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