Tire inflation and deflation system with redundancy function, control method of tire inflation and deflation system and vehicle

Abstract

The invention discloses a tire inflation and deflation system with a redundancy function, a control method of the tire inflation and deflation system and a vehicle. The control method comprises the following steps: when a first tire pressure detection value generated by any first tire pressure detection device fails to be obtained, controlling a second tire pressure detection device to start to detect the pressure in a tire, and generating a second tire pressure detection value; and according to the second tire pressure detection value and a preset target tire pressure value, the working state of the inflation and deflation device is adjusted until the second tire pressure detection value reaches the preset target tire pressure value. According to the invention, the defect of a single detection mode in the aspect of reliability is effectively made up, and the pressure in the tire can still be accurately adjusted when the first tire pressure detection device or the first tire pressure detection device and the controller have faults.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a tire inflation / deflation system with redundant functions, its control method, and a vehicle. Background Technology

[0002] A central tire inflation / deflation system is a control system used to adjust tire pressure in real time. It allows the driver to easily inflate, deflate, and monitor tire pressure from inside the cab when the vehicle is stationary or moving at low speeds, effectively improving the vehicle's ability to handle different road surfaces and enhancing driving safety. As the automotive industry moves towards higher safety standards, higher demands are placed on the accuracy and reliability of tire pressure control systems. Traditional inflation / deflation systems, unable to accurately detect tire pressure, struggle to achieve precise inflation / deflation control, posing certain safety hazards and failing to meet the safety performance requirements of modern vehicles.

[0003] Currently, vehicle tire inflation / deflation systems are mainly controlled using two technical approaches. One is a passive detection and control mode, where the system detects tire pressure and performs inflation / deflation actions based on the driver's active commands. The driver obtains the current tire pressure data, makes judgments, and executes corresponding operations to bring the tire pressure to the required value. This mode relies on the driver's subjective judgment and active intervention, and cannot achieve real-time continuous monitoring of tire pressure changes. The other is a real-time detection and control mode, where the system automatically and in real-time collects tire pressure data at a preset frequency and automatically performs inflation / deflation operations according to the set target pressure value until the target state is reached. This achieves closed-loop automatic control of tire pressure, significantly improving the level of automation.

[0004] However, both control modes share common technical limitations: tire pressure data acquisition is highly dependent on tire pressure sensors and their signal transmitters installed on the tires or wheel wells. In practical applications, if a sensor malfunctions, signal transmission is interfered with, or the transmitter fails, causing the controller to be unable to receive a valid tire pressure signal, the system will lose its crucial source of tire pressure data. In this situation, neither passive systems relying on driver judgment nor automatic real-time monitoring systems can accurately determine tire status, let alone perform subsequent inflation / deflation operations. This not only leads to system malfunction but may also result in the vehicle operating with unknown tire pressure, posing a serious safety hazard. Summary of the Invention

[0005] This invention provides a tire inflation / deflation system with redundant functions, a control method thereof, and a vehicle, which effectively compensates for the reliability deficiencies of a single detection method and enables accurate adjustment of tire pressure even when there is a fault in the first tire pressure detection device or between the first tire pressure detection device and the controller.

[0006] In a first aspect, the present invention provides a control method for a tire inflation / deflation system with redundant functions, the tire inflation / deflation system comprising: a plurality of first tire pressure detection devices, inflation / deflation devices and a controller; The plurality of first tire pressure detection devices are respectively installed inside the plurality of tires and are all communicatively connected to the controller; the inflation / deflation device is connected to the air circuit of the plurality of tires and is electrically connected to the controller; the inflation / deflation device includes an electromagnetic combination valve; a second tire pressure detection device is installed inside the electromagnetic combination valve; the second tire pressure detection device is connected to the air circuit of the plurality of tires and is electrically connected to the controller. The control method includes: If the first tire pressure detection value generated by the first tire pressure detection device fails to be obtained, the second tire pressure detection device is controlled to start detecting the pressure inside the tire and generate a second tire pressure detection value. Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the inflation / deflation device until the second tire pressure detection value reaches the preset target tire pressure value.

[0007] Optionally, the tire inflation / deflation system further includes a touch panel, which is electrically connected to the controller; the inflation / deflation device further includes multiple wheel-side valves; the multiple wheel-side valves are respectively disposed on the wheel sides of multiple tires, and each of the multiple wheel-side valves is connected to the air circuit of the second tire pressure detection device and is electrically connected to the controller; If obtaining any of the first tire pressure readings generated by the first tire pressure monitoring device fails, the second tire pressure monitoring device is controlled to start detecting the pressure inside the tire and generating a second tire pressure reading, including: When it fails to obtain any of the first tire pressure detection values ​​generated by the first tire pressure detection device, a tire pressure detection command received by the touch panel is obtained; wherein, the tire pressure detection command is used to specify the target tire to be tested for which the first tire pressure detection value was not obtained; According to the tire pressure detection command, the wheel-side valve corresponding to the target tire to be tested is controlled to be in the open state; The second tire pressure detection device is controlled to start detecting the pressure inside the target tire and generate a second tire pressure detection value; Based on the second tire pressure reading and the preset target tire pressure value, adjust the operating state of the inflation / deflation device until the second tire pressure reading reaches the preset target tire pressure value, including: Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested until the second tire pressure detection value reaches the preset target tire pressure value.

[0008] Optionally, before acquiring the tire pressure detection command received by the touch panel when acquiring any of the first tire pressure detection values ​​generated by the first tire pressure detection device fails, the method further includes: Obtain the first tire pressure value generated by the first tire pressure monitoring device; The touch panel is controlled to display the first tire pressure detection value that was successfully acquired, and the tire corresponding to the first tire pressure detection value that was successfully acquired.

[0009] Optionally, after controlling the touch panel to display the successfully acquired first tire pressure detection value and the tire corresponding to the successfully acquired first tire pressure detection value, the method further includes: When all the first tire pressure values ​​generated by the first tire pressure detection device are successfully obtained, the working state of the electromagnetic combination valve and the working state of the multiple wheel-side valves are adjusted according to each first tire pressure detection value and the preset target tire pressure value until each first tire pressure detection value reaches the preset target tire pressure value.

[0010] Optionally, before obtaining the first tire pressure value generated by the first tire pressure monitoring device, the method further includes: Obtain the mode control command received by the touch panel; The preset target tire pressure value is determined according to the mode control command.

[0011] In a second aspect, the present invention also provides a tire inflation / deflation system with redundancy, for performing a control method for a tire inflation / deflation system with redundancy as described in any of the first aspects, the tire inflation / deflation system comprising: a plurality of first tire pressure detection devices, inflation / deflation devices and a controller; The plurality of first tire pressure detection devices are respectively installed inside the plurality of tires and are all communicatively connected to the controller; the inflation / deflation device is connected to the air circuit of the plurality of tires and is electrically connected to the controller; the inflation / deflation device includes an electromagnetic combination valve; a second tire pressure detection device is installed inside the electromagnetic combination valve; the second tire pressure detection device is connected to the air circuit of the plurality of tires and is electrically connected to the controller. The plurality of first tire pressure detection devices are used to detect the pressure of the plurality of tires and generate a first tire pressure detection value; The second tire pressure detection device is used to start detecting the pressure inside the tire and generate a second tire pressure detection value when the controller fails to acquire any of the first tire pressure detection values ​​generated by the first tire pressure detection device. The controller is used to adjust the working state of the inflation / deflation device according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.

[0012] Optionally, it also includes a touch panel, which is electrically connected to the controller; the inflation / deflation device also includes multiple wheel-side valves; the multiple wheel-side valves are respectively disposed on the wheel sides of multiple tires, and the multiple wheel-side valves are all connected to the air circuit of the second tire pressure detection device and are all electrically connected to the controller; The touch panel is used to receive a tire pressure detection command when the controller fails to obtain any of the first tire pressure detection values ​​generated by the first tire pressure detection device; wherein, the tire pressure detection command is used to specify the target tire to be tested that failed to obtain the first tire pressure detection value; The controller is used to control the wheel-side valve corresponding to the target tire to be tested to be in an open state according to the tire pressure detection command; The second tire pressure detection device is used to start detecting the pressure inside the target tire when the wheel-side valve corresponding to the target tire is in the open state, and to generate a second tire pressure detection value. The controller is also used to adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested according to the second tire pressure detection value and the preset target tire pressure value, until the second tire pressure detection value reaches the preset target tire pressure value.

[0013] Optionally, the inflation / deflation device further includes multiple gas transmission channels and a gas source; Both the electromagnetic combination valve and the second tire pressure detection device are connected to the multiple wheel-side valve air circuits through the multiple gas transmission channels. The gas source is connected to the electromagnetic combination valve and is used to supply gas to the tire.

[0014] Optionally, it also includes a wireless receiving device, which is communicatively connected to the plurality of first tire pressure monitoring devices and electrically connected to the controller, for inputting the first tire pressure monitoring values ​​generated by the plurality of first tire pressure monitoring devices into the controller.

[0015] Thirdly, the present invention also provides a vehicle including a tire inflation / deflation system with redundancy as described in any of the second aspects.

[0016] The present invention provides a redundant tire inflation / deflation system, control method, and vehicle. By using a second tire pressure monitoring device as a redundant backup for the first tire pressure monitoring device, the second device can take over the tire pressure monitoring task when the controller fails to obtain the first tire pressure value generated by the first tire pressure monitoring device, ensuring that the system can still obtain critical tire pressure information. This redundancy design effectively compensates for the reliability deficiencies of a single detection method. It ensures that even if there is a fault in the first tire pressure monitoring device or between the first tire pressure monitoring device and the controller, the tire pressure can still be accurately adjusted to remain within a safe range. This avoids the risk of the entire tire inflation / deflation system failing due to the failure of the first tire pressure monitoring device, ensuring the safe and reliable operation of the tire inflation / deflation system and improving system safety.

[0017] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a tire inflation / deflation system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another tire inflation / deflation system provided in an embodiment of the present invention; Figure 3 A schematic flowchart of a control method for a tire inflation / deflation system provided in an embodiment of the present invention; Figure 4 A flowchart illustrating another control method for a tire inflation / deflation system provided in an embodiment of the present invention; Figure 5 This is a flowchart illustrating another control method for a tire inflation / deflation system provided in an embodiment of the present invention. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0021] The terminology used in the embodiments of this invention is for the purpose of describing specific embodiments only and is not intended to limit the invention. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this invention are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this invention. Furthermore, in the context, it should be understood that when referring to an element being formed "on" or "below" another element, it can be formed not only directly on or below the other element, but also indirectly on or below it through intermediate elements. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] The term "comprising" and its variations as used in this invention are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment".

[0023] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish the corresponding contents and are not used to limit the order or interdependence.

[0024] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] Figure 1 This is a schematic diagram of a tire inflation / deflation system provided in an embodiment of the present invention, as shown below. Figure 1As shown, the tire inflation / deflation system includes multiple first tire pressure detection devices 10, inflation / deflation devices 20, and a controller 30. Each of the multiple first tire pressure detection devices 10 is correspondingly installed inside multiple tires 40 and is communicatively connected to the controller 30. The inflation / deflation devices 20 are connected to the multiple tires 40 via air circuits and are electrically connected to the controller 30. Each inflation / deflation device 20 includes a solenoid combination valve 201, within which a second tire pressure detection device 202 is installed. The second tire pressure detection device 202 is connected to the multiple tires 40 via air circuits and is electrically connected to the controller 30. The multiple first tire pressure detection devices 10 are used to detect the pressure of the multiple tires 40 and generate a first tire pressure detection value. The second tire pressure detection device 202 is used to start detecting the pressure inside the tire 40 and generate a second tire pressure detection value when the controller 30 fails to obtain a first tire pressure detection value generated by any of the first tire pressure detection devices 10. The controller 30 is used to adjust the working state of the inflation / deflation device 20 according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.

[0026] Specifically, such as Figure 1 As shown, multiple first tire pressure detection devices 10 are correspondingly installed inside multiple tires 40, capable of detecting the pressure inside the tire 40 in real time and generating a first tire pressure detection value. Simultaneously, all multiple first tire pressure detection devices 10 are communicatively connected to the controller 30, inputting the generated first tire pressure detection value into the controller 30. Further, the controller 30 can determine whether the tire 40 needs to be inflated or deflated based on the first tire pressure detection value and a preset target tire pressure value. When inflation or deflation of the tire 40 is required, the controller adjusts the operating state of the inflation / deflation device 20 to ensure the first tire pressure detection value reaches the preset target tire pressure value. The inflation / deflation device 20 includes a solenoid combination valve 201. Adjusting the operating state of the inflation / deflation device 20 can be understood as adjusting the solenoid combination valve 201 to be in an inflation state, a deflation state, or a pressure-holding state, so as to realize the inflation or deflation operation of the tire 40 through the solenoid combination valve 201. For example, the solenoid combination valve 201 can be arranged on the side of the vehicle frame. Understandably, when the controller 30 adjusts the pressure inside the tire 40 through the inflation / deflation device 20, the first tire pressure detection device 10 continuously detects the pressure inside the tire 40, so that the first tire pressure detection value continuously approaches the preset target tire pressure value.

[0027] However, during actual operation, the first tire pressure detection device 10 or the communication between the first tire pressure detection device 10 and the controller 30 may malfunction, causing the controller 30 to be unable to obtain the first tire pressure detection value, which in turn causes the controller 30 to be unable to perform the inflation / deflation action on the tire 40 based on the first tire pressure detection value, posing a safety hazard.

[0028] Based on this, such as Figure 1As shown, the electromagnetic combination valve 201 provided in this embodiment of the invention is equipped with a second tire pressure detection device 202. The second tire pressure detection device 202 is connected to multiple tires 40 via air circuits and is electrically connected to the controller 30. When the controller 30 fails to acquire a first tire pressure detection value generated by any of the first tire pressure detection devices 10, it indicates that there may be a fault in the first tire pressure detection device 10 or between the first tire pressure detection device 10 and the controller 30. At this time, the controller 30 can control the second tire pressure detection device 202 to start detecting the pressure inside the tire 40 and generate a second tire pressure detection value. Further, the second tire pressure detection device 202 inputs the generated second tire pressure detection value to the controller 30. The controller 30 can then determine whether the tire 40 needs to be inflated or deflated based on the second tire pressure detection value and a preset target tire pressure value. When it is necessary to inflate or deflate the tire 40, the controller adjusts the working state of the inflation / deflation device 20 to make the second tire pressure detection value reach the preset target tire pressure value, thus ensuring the safety of the tire inflation / deflation system.

[0029] This invention, by using a second tire pressure monitoring device as a redundant backup for the first tire pressure monitoring device, allows the second device to take over the tire pressure monitoring task when the controller fails to acquire the first tire pressure value generated by the first device, ensuring that the system can still obtain crucial tire pressure information. This redundancy design effectively compensates for the reliability deficiencies of a single detection method, avoids the risk of the entire tire inflation / deflation system failing due to the failure of the first device, ensures the safe and reliable operation of the tire inflation / deflation system, and improves system safety.

[0030] Optionally, Figure 2 This is a schematic diagram of another tire inflation / deflation system provided in an embodiment of the present invention, as shown below. Figure 2As shown, the tire inflation / deflation system also includes a touch panel 50, which is electrically connected to the controller 30. The inflation / deflation device 20 also includes multiple wheel-side valves 203, each corresponding to one of the wheel sides of a plurality of tires 40. All wheel-side valves 203 are connected to the air circuit of the second tire pressure detection device 202 and are electrically connected to the controller 30. The touch panel 50 is used to receive a tire pressure detection command when the controller 30 fails to obtain any first tire pressure detection value generated by the first tire pressure detection device 10. The tire pressure detection command specifies the target tire for which the first tire pressure detection value was not obtained. The controller 30 controls the wheel-side valve 203 corresponding to the target tire to be in an open state according to the tire pressure detection command. The second tire pressure detection device 202 is used to start detecting the pressure inside the target tire and generate a second tire pressure detection value when the wheel-side valve 203 corresponding to the target tire is in an open state. The controller 30 is also used to adjust the working state of the electromagnetic combination valve 201 and the working state of the wheel-side valve 203 corresponding to the target tire to be tested according to the second tire pressure detection value and the preset target tire pressure value, until the second tire pressure detection value reaches the preset target tire pressure value.

[0031] Specifically, such as Figure 2 As shown, each tire 40 is equipped with a wheel-side valve 203, and each wheel-side valve 203 is connected to the controller 30. Therefore, when the controller 30 adjusts the pressure inside the tire 40, the working state of the wheel-side valve 203 can be controlled to achieve individual adjustment of each tire 40. The working state of the wheel-side valve 203 includes an open or closed state. When the wheel-side valve 203 is in the open state, the air passage of the corresponding tire 40 is opened; when the wheel-side valve 203 is in the closed state, the air passage of the corresponding tire 40 is closed.

[0032] Furthermore, such as Figure 2As shown, the tire inflation / deflation system also includes a touch panel 50. For example, the touch panel 50 can be positioned near the dashboard in the driver's cab for easy driver operation. When the controller 30 fails to acquire a first tire pressure reading generated by any of the first tire pressure detection devices 10, the driver can input a tire pressure detection command through the touch panel 50. This command specifies the target tire for which the first tire pressure reading failed to be acquired; that is, the driver can specify any tire 40 for which the controller 30 has not acquired a first tire pressure reading as the target tire. Further, upon receiving the tire pressure detection command, the controller 30 controls the wheel-side valve 203 corresponding to the target tire to be opened. It is understood that at this time, the wheel-side valves 203 of all other tires 40 are closed, and only the target tire is connected to the second tire pressure detection device 202. Then, the second tire pressure detection device 202, connected to the wheel-side valve 203 of the target tire, can detect the pressure inside the target tire and generate a second tire pressure reading. Furthermore, after the controller 30 receives the second tire pressure detection value corresponding to the target tire to be tested, it can adjust the working state of the electromagnetic combination valve 201 and the working state of the wheel-side valve 203 corresponding to the target tire to be tested according to the second tire pressure detection value and the preset target tire pressure value. That is, it adjusts the electromagnetic combination valve 201 to be in an inflation state, an deflation state, or a pressure holding state, and adjusts the wheel-side valve 203 corresponding to the target tire to be tested to be in an open state, until the second tire pressure detection value reaches the preset target tire pressure value.

[0033] Understandably, when the second tire pressure reading is greater than the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the deflation state and adjust the corresponding wheel-side valve 203 to the open state. At this time, the tire 40 will deflate until the second tire pressure reading reaches the preset target tire pressure. When the second tire pressure reading is less than the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the inflation state and adjust the corresponding wheel-side valve 203 to the open state. At this time, the tire 40 will inflate until the second tire pressure reading reaches the preset target tire pressure. When the second tire pressure reading equals the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the pressure-maintaining state and adjust the corresponding wheel-side valve 203 to the closed state. At this time, the pressure inside the tire 40 will remain constant.

[0034] It should be noted that for the tire 40 that the controller 30 successfully obtains the first tire pressure detection value generated by the first tire pressure detection device 10, the controller 30 can directly adjust the working state of the electromagnetic combination valve 201 and the working state of the wheel-side valve 203 corresponding to the first tire pressure detection value according to the first tire pressure detection value and the preset target tire pressure value.

[0035] Optionally, such as Figure 2 As shown, the inflation / deflation device 20 also includes multiple gas transmission channels 204 and a gas source 205. The electromagnetic combination valve 201 and the second tire pressure detection device 202 are both connected to the air circuits of multiple wheel-side valves 203 through the multiple gas transmission channels 204. The gas source 205 is connected to the electromagnetic combination valve 201 and is used to supply air to the tire 40.

[0036] Specifically, the gas source 205 is used to store gas. When the electromagnetic combination valve 201 is in the inflation state, the gas in the gas source 205 can enter the tire 40 through the electromagnetic combination valve 201 to inflate the tire 40.

[0037] Optionally, such as Figure 2 As shown, the tire inflation / deflation system also includes a wireless receiver 60, which is communicatively connected to a plurality of first tire pressure detection devices 10 and electrically connected to a controller 30, for inputting the first tire pressure detection values ​​generated by the plurality of first tire pressure detection devices 10 into the controller 30.

[0038] Specifically, the first tire pressure detection device 10 sends the first tire pressure detection value to the wireless receiver 60 in the form of a radio frequency signal. The wireless receiver 60 receives all the first tire pressure detection values ​​transmitted by the first tire pressure detection devices 10 and further transmits the first tire pressure detection values ​​to the controller 30 in the form of a CAN line.

[0039] It should be noted that, Figure 1 and Figure 2 The application only shows two tires, but this is not intended to limit the scope of this application. This application does not limit the number of tires, the first tire pressure detection device, and the wheel valve. At the same time, the first tire pressure detection device and the second tire pressure detection device can be located in other parts of the vehicle. Any component that can detect the tire pressure inside the tire and its location are within the scope of protection of this application.

[0040] Based on the same inventive concept, embodiments of the present invention also provide a control method for a tire inflation / deflation system with redundancy. Figure 3 This is a flowchart illustrating a control method for a tire inflation / deflation system provided in an embodiment of the present invention, as shown below. Figure 3 As shown, the control method includes: S101. When it fails to obtain the first tire pressure detection value generated by any of the first tire pressure detection devices, control the second tire pressure detection device to start detecting the pressure inside the tire and generate the second tire pressure detection value.

[0041] Specifically, such as Figure 1As shown, multiple first tire pressure monitoring devices 10 are installed one-to-one inside multiple tires 40, capable of detecting the pressure inside the tire 40 in real time and generating a first tire pressure detection value. All first tire pressure monitoring devices 10 are communicatively connected to the controller 30, inputting the generated first tire pressure detection value into the controller 30. When the controller 30 fails to obtain a first tire pressure detection value generated by any of the first tire pressure monitoring devices 10, it indicates a possible fault in the first tire pressure monitoring device 10 or between the first tire pressure monitoring device 10 and the controller 30. To ensure the safety and stability of the tire inflation / deflation system, the controller 30 can control a second tire pressure monitoring device 202 to start detecting the pressure inside the tire 40 and generating a second tire pressure detection value. Thus, the second tire pressure monitoring device 202 serves as a redundant backup for the first tire pressure monitoring device 10. When the controller 30 fails to obtain a first tire pressure detection value generated by the first tire pressure monitoring device 10, it takes over the tire pressure monitoring task, ensuring the system can still obtain crucial tire pressure information.

[0042] S102. Adjust the working state of the inflation / deflation device according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.

[0043] Specifically, after the second tire pressure monitoring device 202 generates the second tire pressure value, the controller 30 determines whether the tire 40 needs to be inflated or deflated based on the second tire pressure value and the preset target tire pressure value. When it is necessary to inflate or deflate the tire 40, the controller adjusts the working state of the inflation / deflation device 20 to ensure that the second tire pressure value reaches the preset target tire pressure value. The inflation / deflation device 20 includes a solenoid combination valve 201. Adjusting the working state of the inflation / deflation device 20 can be understood as adjusting the solenoid combination valve 201 to be in an inflating, deflating, or pressure-holding state, thereby enabling the inflation or deflation of the tire 40 through the solenoid combination valve 201. In this way, even if there is a fault in the first tire pressure monitoring device 10 or between the first tire pressure monitoring device 10 and the controller 30, the pressure inside the tire 40 can still be accurately adjusted to remain within a safe range. This avoids the risk of the entire tire inflation / deflation system failing due to the failure of the first tire pressure monitoring device 10, ensuring the safe and reliable operation of the tire inflation / deflation system and improving system safety.

[0044] This invention, by using a second tire pressure monitoring device as a redundant backup for the first tire pressure monitoring device, allows the second device to take over the tire pressure monitoring task when the controller fails to acquire the first tire pressure value generated by the first device, ensuring the system can still obtain crucial tire pressure information. This redundancy effectively compensates for the reliability deficiencies of a single detection method, enabling accurate adjustment of tire pressure within a safe range even when there is a fault in the first tire pressure monitoring device or between the first device and the controller. This avoids the risk of the entire tire inflation / deflation system failing due to the failure of the first device, ensuring the safe and reliable operation of the tire inflation / deflation system and improving system safety.

[0045] Optional, such as Figure 2 As shown, the tire inflation / deflation system also includes a touch panel 50, which is electrically connected to the controller 30. The inflation / deflation device 20 also includes multiple wheel-side valves 203, which are respectively disposed on the wheel sides of multiple tires 40. All multiple wheel-side valves 203 are connected to the air circuit of the second tire pressure detection device 202 and are electrically connected to the controller 30. Figure 4 This is a flowchart illustrating another control method for a tire inflation / deflation system provided in an embodiment of the present invention. This embodiment is a refinement of the above embodiment. Specifically, for step S101, when obtaining any first tire pressure detection value generated by the first tire pressure detection device fails, controlling the second tire pressure detection device to start detecting the pressure inside the tire and generating a second tire pressure detection value can be further refined as follows: When it fails to obtain the first tire pressure detection value generated by any of the first tire pressure detection devices, the tire pressure detection command received by the touch panel is obtained; wherein, the tire pressure detection command is used to specify the target tire to be tested where the first tire pressure detection value failed to be obtained; According to the tire pressure detection command, control the wheel-side valve corresponding to the target tire to be tested to be in the open state; The second tire pressure monitoring device is controlled to start detecting the pressure inside the target tire and generate a second tire pressure reading. Furthermore, step S102, adjusting the working state of the inflation / deflation device according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value, can be further refined as follows: Based on the second tire pressure reading and the preset target tire pressure value, adjust the working state of the solenoid combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested until the second tire pressure reading reaches the preset target tire pressure value.

[0046] For parts not described in detail in this embodiment, please refer to the foregoing embodiments, such as... Figure 4 As shown, the control method provided in this embodiment includes: S201. If it fails to obtain the first tire pressure detection value generated by any of the first tire pressure detection devices, obtain the tire pressure detection command received by the touch panel.

[0047] The tire pressure monitoring command is used to specify the target tire that failed to obtain the first tire pressure monitoring value. Specifically, for example... Figure 2 As shown, each tire 40 is equipped with a wheel-side valve 203, and each wheel-side valve 203 is connected to the controller 30. Therefore, when the controller 30 adjusts the pressure inside the tire 40, the working state of the wheel-side valve 203 can be controlled to achieve individual adjustment of each tire 40. The working state of the wheel-side valve 203 includes an open or closed state. When the wheel-side valve 203 is in the open state, the air passage of the corresponding tire 40 is opened; when the wheel-side valve 203 is in the closed state, the air passage of the corresponding tire 40 is closed.

[0048] Furthermore, such as Figure 2 As shown, the tire inflation / deflation system also includes a touch panel 50. When the controller 30 fails to obtain the first tire pressure detection value generated by any of the first tire pressure detection devices 10, the controller 30 can obtain the tire pressure detection command input by the driver through the touch panel 50. The tire pressure detection command is used to specify the target tire that failed to obtain the first tire pressure detection value. That is, the driver can specify any tire 40 that the controller 30 has not obtained the first tire pressure detection value as the target tire through the touch panel 50, thereby realizing the tire pressure detection of the target tire.

[0049] S202. According to the tire pressure detection command, control the wheel-side valve corresponding to the target tire to be tested to be in the open state.

[0050] Specifically, when the controller 30 receives the tire pressure detection command, it controls the wheel-side valve 203 corresponding to the target tire to be tested to be in the open state. It can be understood that at this time, the wheel-side valves 203 of other tires are in the closed state, and only the target tire to be tested is connected to the air circuit of the second tire pressure detection device 202.

[0051] S203. Control the second tire pressure detection device to start detecting the pressure inside the target tire and generate the second tire pressure detection value.

[0052] S204. Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested until the second tire pressure detection value reaches the preset target tire pressure value.

[0053] Specifically, after the target tire is connected to the second tire pressure detection device 202 via an air circuit, the second tire pressure detection device 202 is controlled to start detecting the pressure inside the target tire and generate a second tire pressure detection value. Further, after the controller 30 receives the second tire pressure detection value corresponding to the target tire, it can adjust the working state of the solenoid combination valve 201 and the working state of the wheel-side valve 203 corresponding to the target tire based on the second tire pressure detection value and a preset target tire pressure value. That is, the solenoid combination valve 201 is adjusted to be in an inflating, deflating, or pressure-holding state, and the wheel-side valve 203 corresponding to the target tire is adjusted to be in an open state, until the second tire pressure detection value reaches the preset target tire pressure value.

[0054] Understandably, when the second tire pressure reading is greater than the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the deflation state and adjust the corresponding wheel-side valve 203 to the open state. At this time, the tire 40 will deflate until the second tire pressure reading reaches the preset target tire pressure. When the second tire pressure reading is less than the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the inflation state and adjust the corresponding wheel-side valve 203 to the open state. At this time, the tire 40 will inflate until the second tire pressure reading reaches the preset target tire pressure. When the second tire pressure reading equals the preset target tire pressure, the controller 30 can adjust the solenoid combination valve 201 to the pressure-maintaining state and adjust the corresponding wheel-side valve 203 to the closed state. At this time, the pressure inside the tire 40 will remain constant.

[0055] This invention enables individual control of each tire by installing a wheel-side valve on the tire's wheel rim. Simultaneously, by acquiring tire pressure detection commands received from the touch panel, it enables individual detection and adjustment of the target tire under test, thereby improving the accuracy of the detection.

[0056] It should be noted that for the tire 40 that the controller 30 successfully obtains the first tire pressure detection value generated by the first tire pressure detection device 10, the controller 30 can directly adjust the working state of the electromagnetic combination valve 201 and the working state of the wheel-side valve 203 corresponding to the first tire pressure detection value according to the first tire pressure detection value and the preset target tire pressure value.

[0057] Optionally, Figure 5 This is a flowchart illustrating another control method for a tire inflation / deflation system provided by an embodiment of the present invention. This embodiment is a refinement of the above embodiment. Specifically, before obtaining the tire pressure detection command received by the touch panel in step S201, when obtaining any first tire pressure detection value generated by the first tire pressure detection device fails, the method further includes: Obtain the first tire pressure reading generated by the first tire pressure monitoring device; The control touch panel displays the first successfully acquired tire pressure reading, as well as the tire corresponding to that reading. Furthermore, after the control touch panel displays the successfully acquired first tire pressure detection value and the tire corresponding to the successfully acquired first tire pressure detection value, it also includes: When all the first tire pressure values ​​generated by the first tire pressure detection device are successfully obtained, the working state of the electromagnetic combination valve and the working state of multiple wheel-side valves are adjusted according to each first tire pressure detection value and the preset target tire pressure value until each first tire pressure detection value reaches the preset target tire pressure value.

[0058] Furthermore, before obtaining the first tire pressure reading generated by the first tire pressure monitoring device, the process also includes: Obtain mode control commands received from the touch panel; Determine the preset target tire pressure value according to the mode control command.

[0059] For parts not described in detail in this embodiment, please refer to the foregoing embodiments, such as... Figure 5 The control method provided in this embodiment includes: S301. Obtain the mode control command received by the touch panel.

[0060] S302. Determine the preset target tire pressure value according to the mode control command.

[0061] Specifically, the required tire pressure within the tires 40 varies depending on the road surface the vehicle is traveling on. Therefore, by receiving mode control commands from the touch panel 50, the vehicle can determine the current road surface it is traveling on, and thus determine the corresponding preset target tire pressure value. For example, the mode control commands may include highway mode, off-road mode, soft road mode, etc.

[0062] S303. Obtain the first tire pressure value generated by the first tire pressure detection device.

[0063] S304. The control touch panel displays the first successfully acquired tire pressure detection value, and the tire corresponding to the first successfully acquired tire pressure detection value.

[0064] Specifically, after acquiring the first tire pressure detection value generated by the first tire pressure detection device 10, the first tire pressure detection value and its corresponding tire 40 can be output to the touch panel 50 for display. It is understood that the controller 30 can only output the successfully acquired first tire pressure detection value and the corresponding tire 40 to the touch panel 50. Therefore, the driver can use the touch panel 50 to understand which tires 40's first tire pressure detection values ​​the controller 30 successfully acquired and which tires 40 were not successfully acquired. Based on this, the driver can select those tires 40 that were not successfully acquired on the touch panel 50 as the target tires to be tested.

[0065] S305. When all the first tire pressure detection values ​​generated by the first tire pressure detection device are successfully obtained, the working state of the electromagnetic combination valve and the working state of multiple wheel-side valves are adjusted according to each first tire pressure detection value and the preset target tire pressure value until each first tire pressure detection value reaches the preset target tire pressure value.

[0066] Specifically, when all the first tire pressure detection values ​​generated by the first tire pressure detection device 10 are successfully obtained, the touch panel 50 should display all tires 40 and their corresponding first tire pressure values. Further, the controller 30 determines whether the tire pressure in each tire 40 meets the requirements of the current mode based on each first tire pressure detection value and the preset target tire pressure value. If the requirements are not met, the controller adjusts the working state of the electromagnetic combination valve 201 and the working state of the multiple wheel-side valves 203 until all the first tire pressure detection values ​​reach the preset target tire pressure value.

[0067] S306. If it fails to obtain the first tire pressure detection value generated by any of the first tire pressure detection devices, obtain the tire pressure detection command received by the touch panel.

[0068] S307. According to the tire pressure detection command, control the wheel-side valve corresponding to the target tire to be tested to be in the open state.

[0069] S308. Control the second tire pressure detection device to start detecting the pressure inside the target tire and generate a second tire pressure detection value.

[0070] S309. Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested until the second tire pressure detection value reaches the preset target tire pressure value.

[0071] This invention improves vehicle safety by acquiring mode control commands received from the touch panel to ensure that the tire pressure value in the tires meets the current vehicle driving requirements. Furthermore, by displaying the result of the first detected tire pressure value acquired by the controller on the touch panel, the driver can more clearly understand the current tire pressure status.

[0072] Optionally, this embodiment of the invention also provides a vehicle including any of the above-described tire inflation / deflation systems with redundant functions. Therefore, the vehicle provided in this embodiment possesses the structure and operation of the tire inflation / deflation system described above, and can achieve the effects of the control method of the tire inflation / deflation system described above. Similarities can be found in the above description, and will not be repeated here.

[0073] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A control method for a tire inflation / deflation system with redundancy, characterized in that, The tire inflation / deflation system includes: multiple first tire pressure detection devices, inflation / deflation devices, and a controller; The plurality of first tire pressure detection devices are respectively installed inside the plurality of tires and are all communicatively connected to the controller; the inflation / deflation device is connected to the air circuit of the plurality of tires and is electrically connected to the controller; the inflation / deflation device includes an electromagnetic combination valve; a second tire pressure detection device is installed inside the electromagnetic combination valve; the second tire pressure detection device is connected to the air circuit of the plurality of tires and is electrically connected to the controller. The control method includes: If the first tire pressure detection value generated by the first tire pressure detection device fails to be obtained, the second tire pressure detection device is controlled to start detecting the pressure inside the tire and generate a second tire pressure detection value. Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the inflation / deflation device until the second tire pressure detection value reaches the preset target tire pressure value.

2. The control method according to claim 1, characterized in that, The tire inflation / deflation system also includes a touch panel, which is electrically connected to the controller; the inflation / deflation device also includes multiple wheel-side valves; the multiple wheel-side valves are respectively disposed on the wheel sides of multiple tires, and each of the multiple wheel-side valves is connected to the air circuit of the second tire pressure detection device and is electrically connected to the controller. If obtaining any of the first tire pressure readings generated by the first tire pressure monitoring device fails, the second tire pressure monitoring device is controlled to start detecting the pressure inside the tire and generating a second tire pressure reading, including: When it fails to obtain any of the first tire pressure detection values ​​generated by the first tire pressure detection device, a tire pressure detection command received by the touch panel is obtained; wherein, the tire pressure detection command is used to specify the target tire to be tested for which the first tire pressure detection value was not obtained; According to the tire pressure detection command, the wheel-side valve corresponding to the target tire to be tested is controlled to be in the open state; The second tire pressure detection device is controlled to start detecting the pressure inside the target tire and generate a second tire pressure detection value; Based on the second tire pressure reading and the preset target tire pressure value, adjust the operating state of the inflation / deflation device until the second tire pressure reading reaches the preset target tire pressure value, including: Based on the second tire pressure detection value and the preset target tire pressure value, adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested until the second tire pressure detection value reaches the preset target tire pressure value.

3. The control method according to claim 2, characterized in that, Before acquiring the tire pressure detection command received by the touch panel, if acquiring any of the first tire pressure detection values ​​generated by the first tire pressure detection device fails, the method further includes: Obtain the first tire pressure value generated by the first tire pressure monitoring device; The touch panel is controlled to display the first tire pressure detection value that was successfully acquired, and the tire corresponding to the first tire pressure detection value that was successfully acquired.

4. The control method according to claim 3, characterized in that, After controlling the touch panel to display the successfully acquired first tire pressure reading and the tire corresponding to the successfully acquired first tire pressure reading, the method further includes: When all the first tire pressure values ​​generated by the first tire pressure detection device are successfully obtained, the working state of the electromagnetic combination valve and the working state of the multiple wheel-side valves are adjusted according to each first tire pressure detection value and the preset target tire pressure value until each first tire pressure detection value reaches the preset target tire pressure value.

5. The control method according to claim 4, characterized in that, Before obtaining the first tire pressure value generated by the first tire pressure monitoring device, the method further includes: Obtain the mode control command received by the touch panel; The preset target tire pressure value is determined according to the mode control command.

6. A tire inflation / deflation system with redundancy, characterized in that, A control method for performing a tire inflation / deflation system with redundant functions as described in any one of claims 1-5, the tire inflation / deflation system comprising: a plurality of first tire pressure detection devices, inflation / deflation devices, and a controller; The plurality of first tire pressure detection devices are respectively installed inside the plurality of tires and are all communicatively connected to the controller; the inflation / deflation device is connected to the air circuit of the plurality of tires and is electrically connected to the controller; the inflation / deflation device includes an electromagnetic combination valve; a second tire pressure detection device is installed inside the electromagnetic combination valve; the second tire pressure detection device is connected to the air circuit of the plurality of tires and is electrically connected to the controller. The plurality of first tire pressure detection devices are used to detect the pressure of the plurality of tires and generate a first tire pressure detection value; The second tire pressure detection device is used to start detecting the pressure inside the tire and generate a second tire pressure detection value when the controller fails to acquire any of the first tire pressure detection values ​​generated by the first tire pressure detection device. The controller is used to adjust the working state of the inflation / deflation device according to the second tire pressure detection value and the preset target tire pressure value until the second tire pressure detection value reaches the preset target tire pressure value.

7. The tire inflation / deflation system according to claim 6, characterized in that, It also includes a touch panel, which is electrically connected to the controller; the inflation / deflation device also includes multiple wheel-side valves; the multiple wheel-side valves are respectively disposed on the wheel sides of multiple tires, and the multiple wheel-side valves are all connected to the air circuit of the second tire pressure detection device and are all electrically connected to the controller; The touch panel is used to receive a tire pressure detection command when the controller fails to obtain any of the first tire pressure detection values ​​generated by the first tire pressure detection device; wherein, the tire pressure detection command is used to specify the target tire to be tested that failed to obtain the first tire pressure detection value; The controller is used to control the wheel-side valve corresponding to the target tire to be tested to be in an open state according to the tire pressure detection command; The second tire pressure detection device is used to start detecting the pressure inside the target tire when the wheel-side valve corresponding to the target tire is in the open state, and to generate a second tire pressure detection value. The controller is also used to adjust the working state of the electromagnetic combination valve and the working state of the wheel-side valve corresponding to the target tire to be tested according to the second tire pressure detection value and the preset target tire pressure value, until the second tire pressure detection value reaches the preset target tire pressure value.

8. The tire inflation / deflation system according to claim 7, characterized in that, The gas filling and discharging device also includes multiple gas transmission channels and a gas source; Both the electromagnetic combination valve and the second tire pressure detection device are connected to the multiple wheel-side valve air circuits through the multiple gas transmission channels. The gas source is connected to the electromagnetic combination valve and is used to supply gas to the tire.

9. The tire inflation / deflation system according to claim 8, characterized in that, It also includes a wireless receiving device, which is communicatively connected to the plurality of first tire pressure monitoring devices and electrically connected to the controller, for inputting the first tire pressure monitoring values ​​generated by the plurality of first tire pressure monitoring devices into the controller.

10. A vehicle, characterized in that, Including the tire inflation / deflation system with redundancy as described in any one of claims 6-9.

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