Air suspension control method and apparatus based on vehicle wireless charging
By detecting vehicle information and controlling the air suspension to automatically lower and regain height during wireless charging, the problem of the air suspension in electric buses being unable to be automatically controlled has been solved, improving wireless charging efficiency and driving safety.
Patent Information
- Application Number
- PCT/CN2024/137312
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-28
- Filing Date
- 2024-12-06
- Publication Date
- 2026-01-02
AI Technical Summary
In existing technologies, the air suspension of electric buses cannot be automatically controlled, resulting in low wireless charging efficiency and poor driving safety. Drivers are prone to forgetting to restore the suspension height, increasing the risk of chassis scraping.
By detecting vehicle information and determining whether the conditions for air suspension descent are met, the air suspension is controlled to automatically descend to the lowest charging position during wireless charging, and the suspension height is controlled according to vehicle information after charging is completed to achieve automatic recovery.
It improves wireless charging efficiency and ensures that the air suspension automatically returns to its original height after charging, avoiding driving safety risks caused by forgetting to restore the suspension height, and improving the vehicle's passability and safety.
Smart Images

Figure CN2024137312_02012026_PF_FP_ABST
Abstract
Description
Air suspension control method and device based on vehicle wireless charging TECHNICAL FIELD
[0001] The present application relates to the technical field of vehicle control, in particular to an air suspension control method and device based on vehicle wireless charging. BACKGROUND
[0002] The high-voltage wireless charging technology is still in its infancy in China, and is currently mainly applied in the market of public buses. The wireless charging technology is to pre-bury a high-voltage magnetic coil on the ground, and a vehicle end receiver installed at the bottom of the vehicle introduces wireless electromagnetic energy from the coil segment pre-buried on the road, and then converts the energy into high-voltage direct current, and then supplements the electric energy through the BDU end of the power battery. The distance between the vehicle end receiver and the pre-buried high-voltage magnetic coil directly determines the charging energy supplement efficiency. The closer the vehicle end receiver is to the ground, the higher the charging efficiency.
[0003] In the traditional technology, the air suspension of the electric bus is mostly manually controlled to descend, and after the vehicle stops wireless charging, the height of the air suspension also needs to be manually restored. It cannot meet the automatic descent demand of entering the wireless charging control, and the driver is easy to forget to restore the height of the air suspension, thereby reducing the passability of the whole vehicle, and then causing the risk of chassis scratching. SUMMARY
[0004] In view of the above problems, the present application is proposed in order to provide an air suspension control method and device based on vehicle wireless charging, which automatically controls the air suspension, improves the wireless charging efficiency, and at the same time ensures the driving safety.
[0005] According to a first aspect of the present application, an air suspension control method based on vehicle wireless charging is provided, comprising:
[0006] When it is detected that the vehicle enters the wireless charging state, first vehicle information is acquired; the first vehicle information includes vehicle gear, hand brake state, vehicle speed and wireless charging current;
[0007] According to the first vehicle information, it is judged whether the air suspension descent condition is met;
[0008] If the air suspension descent condition is met, the air suspension is controlled to descend to the lowest charging position;
[0009] If the wireless charging end information is detected, second vehicle information is acquired, and the second vehicle information includes power-on information, vehicle gear, hand brake state and vehicle speed;
[0010] According to the second vehicle information, the height of the air suspension is controlled.
[0011] Optionally, before the detecting that the vehicle enters the wireless charging state, the method further comprises:
[0012] if a wireless charging request is detected, obtaining vehicle state information;
[0013] judging, according to the vehicle state information, whether the vehicle satisfies a wireless charging condition;
[0014] if the wireless charging condition is satisfied, sending a closing instruction to a battery management system for controlling a high-voltage charging contactor to close;
[0015] sending a wireless charging instruction and a maximum charging current to a wireless charging controller to perform wireless charging.
[0016] Optionally, the judging, according to the first vehicle information, whether an air suspension lowering condition is satisfied comprises:
[0017] if the vehicle gear is in the N gear, the handbrake state is in the pulled-up state, the vehicle speed is 0, and the wireless charging current is greater than a preset current threshold, the air suspension lowering condition is satisfied.
[0018] Optionally, the controlling the air suspension to lower to a charging lowest position comprises:
[0019] sending a charging lowering instruction to an instrument, and the instrument lowers the air suspension to the charging lowest position through a hard-wire control in response to the charging lowering instruction.
[0020] Optionally, the controlling, according to the second vehicle information, the height of the air suspension comprises:
[0021] if the power-on information is high-voltage power-on, the vehicle gear is not in the N gear, the handbrake state is in the pulled-down state, and the vehicle speed is greater than a preset vehicle speed threshold, the air suspension is controlled to rise from the charging lowest position to a normal height.
[0022] Optionally, the method further comprises:
[0023] if it is detected that the position of the air suspension is lower than the charging lowest position, stopping the wireless charging, sending a fault alarm information to an instrument, and sending a driving prohibition instruction to a motor controller.
[0024] Optionally, after the controlling the air suspension to lower to the charging lowest position, the method further comprises:
[0025] if air suspension position information is not detected in a preset number of CAN communication cycles, controlling the air suspension to return to the normal height.
[0026] According to a second aspect of the present application, there is provided an air suspension control device based on wireless charging of a vehicle, comprising:
[0027] a detection module configured to acquire first vehicle information when it is detected that the vehicle enters a wireless charging state, wherein the first vehicle information comprises a gear position, a handbrake state, a vehicle speed, and a wireless charging current;
[0028] a first judgment module configured to judge whether an air suspension lowering condition is met according to the first vehicle information, and control the air suspension to lower to a lowest charging position if the air suspension lowering condition is met;
[0029] a height control module configured to acquire second vehicle information when it is detected that a wireless charging end information is acquired, wherein the second vehicle information comprises power-on information, a gear position, a handbrake state, and a vehicle speed, and control a height of the air suspension according to the second vehicle information.
[0030] According to a third aspect of the present application, there is provided a controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the air suspension control method based on wireless charging of a vehicle.
[0031] According to a fourth aspect of the present application, there is provided a vehicle, comprising a vehicle body and a controller installed in the vehicle body, wherein the controller executes the air suspension control method based on wireless charging of a vehicle.
[0032] The above one or more technical solutions in the embodiments of the present specification have at least the following technical effects:
[0033] The air suspension control method and device based on wireless charging of a vehicle provided by the embodiments of the present specification can acquire first vehicle information when it is detected that the vehicle enters a wireless charging state, then judge whether an air suspension lowering condition is met according to the first vehicle information, control the air suspension to lower to a lowest charging position if the air suspension lowering condition is met, acquire second vehicle information if a wireless charging end information is detected, and control a height of the air suspension according to the second vehicle information. In this way, automatic control of the air suspension can be achieved when the vehicle is wirelessly charged, the wireless charging efficiency is improved, and the height of the air suspension can be avoided from being forgotten when the vehicle is started, thereby ensuring driving safety.
[0034] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the embodiments of the present application can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS
[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments with reference made to the accompanying drawings. The drawings provided herein are for illustrative purposes only and, therefore, should not be considered to be limiting in any way. Like reference characters often denote identical or similar components throughout the drawings. In the drawings:
[0036] FIG. 1 shows a flow chart of a vehicle wireless charging based air suspension control method according to an embodiment of the present application.
[0037] FIG. 2 shows a block diagram of a vehicle wireless charging based air suspension control device according to an embodiment of the present application. DETAILED DESCRIPTION
[0038] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0039] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without making creative efforts fall within the scope of protection of the present application.
[0040] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
[0041] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0042] The embodiments of the present application provide a vehicle wireless charging based air suspension control method, in combination with the flow chart shown in FIG. 1, the vehicle wireless charging based air suspension control method comprises steps 101 to 105:
[0043] Step 101: When it is detected that the vehicle enters a wireless charging state, first vehicle information is acquired; the first vehicle information includes vehicle gear, hand brake state, vehicle speed, and wireless charging current;
[0044] In the embodiment, the vehicle can be a pure electric bus. The vehicle is provided with an air suspension. The charging mode of the vehicle in the embodiment is wireless charging. A high-voltage magnetic coil is pre-buried on the ground, and a vehicle end receiver installed on the vehicle bottom introduces wireless electromagnetic energy from the coil segment pre-buried on the road, converts the energy into high-voltage direct current, and supplements the electric energy through the battery pack breaker unit (BDU) end of the power battery.
[0045] When the vehicle needs wireless charging, it is detected whether there is a wireless charging request. If there is a wireless charging request, vehicle state information is acquired; the vehicle state information includes battery soc, vehicle speed, vehicle gear, and hand brake state.
[0046] Then, according to the vehicle state information, it is comprehensively judged whether the vehicle satisfies the wireless charging condition; for example, the battery soc is less than 30%, the vehicle speed is 0, the vehicle gear is N gear, and the hand brake state is pulled up, then the vehicle satisfies the wireless charging condition.
[0047] If the wireless charging condition is satisfied, a closing instruction is sent to the battery management system (BMS) for controlling the high-voltage charging contactor to be closed. After the high-voltage charging contactor is closed, the BMS returns the high-voltage contactor state to the vehicle controller. Then, the vehicle controller sends a wireless charging instruction and a maximum charging current to the wireless charging controller to perform wireless charging. When the vehicle performs wireless charging, the vehicle enters a wireless charging state.
[0048] When it is detected that the vehicle enters a wireless charging state, first vehicle information of the vehicle is acquired. The first vehicle information includes vehicle gear, hand brake state, vehicle speed, and wireless charging current. The vehicle gear includes N gear, R gear, and D gear. The hand brake state includes a pulled-up state and a put-down state.
[0049] Step 102: According to the first vehicle information, it is judged whether an air suspension lowering condition is satisfied;
[0050] After the first vehicle information is acquired, the vehicle judges whether the air suspension lowering condition is satisfied according to the first vehicle information. Specifically, if the vehicle gear is N gear, the hand brake state is pulled up, the vehicle speed is 0, and the wireless charging current is greater than a preset current threshold, the air suspension lowering condition is satisfied. Otherwise, the air suspension lowering condition is not satisfied. In the embodiment, the preset current threshold can be 10 A.
[0051] Step 103: If the air suspension lowering condition is satisfied, the air suspension is controlled to be lowered to a charging lowest position;
[0052] Only when it is judged that the air suspension lowering condition is met, the air suspension is controlled to be lowered to the charging lowest position. For the wireless charging of the vehicle, the air suspension can still be charged wirelessly even if it is not lowered to the charging lowest position. Only when the air suspension is at the charging lowest position, the distance from the ground is relatively short, and the wireless charging efficiency can be improved.
[0053] The purpose of setting the air suspension lowering condition is to confirm that the wireless charging state is stable, and then lower the height of the air suspension. If the vehicle enters the wireless charging state, the air suspension is lowered, and then it is found that the current cannot be increased, which affects the wireless charging and also wastes the action of the air suspension.
[0054] There are various ways to control the lowering of the air suspension. Commonly, the controller of the whole vehicle sends a charging lowering instruction to the instrument, and the instrument lowers the air suspension to the charging lowest position through hard-wire control in response to the charging lowering instruction. The air suspension can also be directly controlled by the controller of the whole vehicle to be lowered to the charging lowest position. The specific control mode can be determined according to the connection mode of the air suspension and the controller on the vehicle, which is not limited in the embodiment.
[0055] If the air suspension lowering condition is not met, the air suspension will not be controlled to be lowered to the charging lowest position, and the wireless charging will be continued according to the current height of the air suspension.
[0056] Step 104: If the wireless charging end information is detected, the second vehicle information is obtained, and the second vehicle information includes power-on information, vehicle gear, hand brake state and vehicle speed.
[0057] In the embodiment, the wireless charging end information refers to the current end of wireless charging. It can refer to the end of full charge, or it can be the end of charging interruption due to other reasons.
[0058] No matter which way the charging ends, as long as the wireless charging end information is detected, the second vehicle information is obtained, and the second vehicle information includes power-on information, vehicle gear, hand brake state and vehicle speed. The power-on information is used to represent whether the vehicle is high-voltage powered on.
[0059] In addition, when the air suspension is lowered to the charging lowest position, if only a single operation such as releasing the hand brake or switching the gear, the height of the air suspension will not be affected, and the controller of the whole vehicle is maintained at the original control command. However, the wireless charging enable is stopped at this time to prevent charging risks.
[0060] Step 105: According to the second vehicle information, the height of the air suspension is controlled.
[0061] It should be noted that after the wireless charging is completed, the vehicle does not immediately raise the height of the air suspension. It is considered that the completion of the charging is likely to be caused by an abnormal interruption of the charging. If the battery is not fully charged, it is possible to be recharged subsequently, so that the air suspension is repeatedly raised and lowered, reducing the service life of the air suspension.
[0062] Therefore, in this embodiment, after the charging is completed, the second vehicle information is analyzed:
[0063] If the power-on information is high-voltage power-on, the vehicle gear is not in N gear, the handbrake state is in the down state, and the vehicle speed is greater than the preset vehicle speed threshold, it indicates that the vehicle will not be repeatedly charged in a short time, and the vehicle is powered on. At this time, the air suspension is controlled to rise from the lowest charging position to the normal height, so as to avoid chassis scratching.
[0064] In addition, when the wireless charging is completed, if the vehicle maintains the original state, such as the vehicle gear is still in N gear, the handbrake state is in the up state, and the vehicle speed is 0, at this time, the air suspension will not be controlled to rise from the lowest charging position to the normal height, but will be maintained at the original lowest charging position, so as to prevent the air suspension from being frequently switched up and down and reduce the service life.
[0065] It should be noted that the vehicle speed threshold can be selected from the range of greater than 0 and less than 5, and in this example, the vehicle speed threshold can be 2. Because the vehicle speed is below 5 km / h, the vehicle speed measurement is not very accurate.
[0066] In addition, it should be noted that in this embodiment, the air suspension may fail when it is raised and lowered. For this, the method further includes the following steps:
[0067] If it is detected that the position of the air suspension is lower than the lowest charging position, the wireless charging is stopped, a fault alarm information is sent to the instrument, and a driving prohibition instruction is sent to the motor controller.
[0068] That is, the instrument needs to report a fault, and at the same time prompt the driver to manually restore the height of the air suspension. Before the air suspension is restored to the lowest charging position, the controller of the whole vehicle can prohibit driving by controlling the motor torque.
[0069] In addition, after the air suspension is controlled to be lowered to the lowest charging position, if the air suspension position information is not detected within a preset number of CAN communication cycles, the air suspension is controlled to be restored to the normal height.
[0070] It should be noted that the vehicle always monitors the height of the air suspension, and when no height information of the air suspension is received within a period of time (for example, 10 CAN communication cycles), the air suspension must be restored to the normal height immediately.
[0071] When the instrument receives the instruction to lower the air suspension height, if it cannot be lowered due to insufficient air pressure, jamming, etc., it can not respond to the instruction, but must feed back the height of the air suspension to the vehicle controller, and report a fault that the air suspension cannot be lowered. At this time, the vehicle controller will send a default state instruction to the instrument to maintain the air suspension state.
[0072] When in the wireless charging state, the instrument detects an air suspension fault, and must feed back the relevant state to the vehicle controller. At this time, the vehicle controller must send a normal height recovery instruction to the instrument. If the normal height recovery instruction is not sent in time, the instrument will automatically control the air suspension to return to the normal height.
[0073] In summary, the air suspension control method based on wireless charging of a vehicle provided by the embodiments of the present specification can, when the vehicle enters a wireless charging state, acquire first vehicle information; then, according to the first vehicle information, determine whether an air suspension lowering condition is met; if the air suspension lowering condition is met, control the air suspension to be lowered to a lowest charging position; and if wireless charging end information is detected, acquire second vehicle information, and according to the second vehicle information, control the height of the air suspension. In this way, the automatic control of the air suspension can be realized when the vehicle is wirelessly charged, the wireless charging efficiency is improved, and the height of the air suspension can be avoided from being forgotten to be raised when the vehicle is running, thereby ensuring the driving safety.
[0074] Based on the same inventive concept, in combination with FIG. 2, the embodiments of the present application also provide an air suspension control device based on wireless charging of a vehicle, comprising:
[0075] A detection module is configured to acquire first vehicle information when the vehicle enters a wireless charging state; the first vehicle information includes a vehicle gear, a handbrake state, a vehicle speed, and a wireless charging current;
[0076] A first determination module is configured to determine whether an air suspension lowering condition is met according to the first vehicle information; if the air suspension lowering condition is met, control the air suspension to be lowered to a lowest charging position;
[0077] A height control module is configured to acquire second vehicle information when wireless charging end information is detected; the second vehicle information includes power-on information, a vehicle gear, a handbrake state, and a vehicle speed; and according to the second vehicle information, control the height of the air suspension.
[0078] Optionally, the detection module is further configured to:
[0079] If a wireless charging request exists, acquire vehicle state information;
[0080] According to the vehicle state information, it is judged whether the vehicle meets the wireless charging condition;
[0081] If the wireless charging condition is met, a closing instruction is sent to the battery management system for controlling the high-voltage charging contactor to be closed.
[0082] A wireless charging instruction and a maximum charging current are sent to the wireless charging controller for wireless charging.
[0083] Optionally, the first judging module is further configured to:
[0084] If the vehicle gear is in the N gear, the hand brake state is in the pulled-up state, the vehicle speed is 0, and the wireless charging current is greater than a preset current threshold, the air suspension lowering condition is met.
[0085] Optionally, the first judging module is further configured to:
[0086] A charging lowering instruction is sent to the instrument, and the instrument lowers the air suspension to the lowest charging position through hard-wire control in response to the charging lowering instruction.
[0087] Optionally, the height control module is further configured to:
[0088] If the power-on information is high-voltage power-on, the vehicle gear is not in the N gear, the hand brake state is in the pulled-down state, and the vehicle speed is greater than a preset vehicle speed threshold, the air suspension is controlled to rise from the lowest charging position to the normal height.
[0089] Optionally, the height control module is further configured to:
[0090] If it is detected that the position of the air suspension is lower than the lowest charging position, the wireless charging is stopped, a fault alarm information is sent to the instrument, and a driving prohibition instruction is sent to the motor controller.
[0091] Optionally, the first judging module is further configured to:
[0092] If the air suspension position information is not detected in a preset number of CAN communication cycles, the air suspension is controlled to return to the normal height.
[0093] To sum up, the air suspension control device based on vehicle wireless charging provided by the embodiments of the present specification can obtain first vehicle information when it is detected that the vehicle enters a wireless charging state, then determine whether an air suspension lowering condition is met according to the first vehicle information, control the air suspension to lower to a lowest charging position if the air suspension lowering condition is met, obtain second vehicle information if wireless charging end information is detected, and control the height of the air suspension according to the second vehicle information. In this way, the automatic control of the air suspension can be realized when the vehicle is wirelessly charged, the wireless charging efficiency is improved, and the height of the air suspension can be avoided from being forgotten to be raised when the vehicle is running, so as to ensure the driving safety.
[0094] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the air suspension control device based on vehicle wireless charging described above can refer to the corresponding process in the foregoing method, and will not be described in more detail here.
[0095] According to a third aspect of the present application, a controller is provided, which includes an air suspension control device based on vehicle wireless charging, a memory, a processor and a communication unit. The memory stores machine-readable instructions executable by the processor. When the controller is running, the processor and the memory communicate through a bus. The processor executes the machine-readable instructions and performs an air suspension control method based on vehicle wireless charging.
[0096] The memory, the processor and the communication unit are directly or indirectly electrically connected to each other to realize the transmission or interaction of signals. For example, these elements can be electrically connected to each other through one or more communication buses or signal lines. The air suspension control device based on vehicle wireless charging includes at least one software functional module stored in the memory in the form of software or firmware. The processor is used to execute the executable modules stored in the memory, such as software functional modules or computer programs included in the air suspension control device based on vehicle wireless charging.
[0097] The memory can be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (EPROM), an electrically erasable programmable read only memory (EEPROM) and the like.
[0098] In some embodiments, the processor is configured to perform one or more functions described in the embodiments. In some embodiments, the processor can include one or more processing cores (e.g., a single-core processor (S) or a multi-core processor (S)).
[0099] In the embodiments, the memory is configured to store a program, and the processor is configured to execute the program after receiving an execution instruction. The method defined by the flow disclosed in any of the embodiments can be applied to the processor or implemented by the processor.
[0100] The communication unit is configured to establish a communication connection between the controller and other devices through a network, and configured to transmit and receive data through the network.
[0101] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the controller described above can refer to the corresponding process in the foregoing method, and will not be described in detail here.
[0102] According to a fourth aspect of the present application, a vehicle is provided, comprising a vehicle body, an air suspension mounted on the vehicle body, and a controller mounted in the vehicle body, the controller being configured to implement the air suspension control method based on wireless charging of the vehicle described above. In this embodiment, the controller is the controller of the whole vehicle, and the vehicle can be a pure electric bus.
[0103] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the controller of the vehicle described above can refer to the corresponding process in the foregoing method, and will not be described in detail here.
[0104] The above is only various embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. An air suspension control method based on vehicle wireless charging, characterized in that, include: When a vehicle is detected to be in wireless charging mode, first vehicle information is obtained; The first vehicle information includes the vehicle's gear position, handbrake status, vehicle speed, and wireless charging current; Based on the first vehicle information, determine whether the conditions for lowering the air suspension are met; If the air suspension descent condition is met, then control the air suspension to descend to the lowest charging position; If wireless charging is detected to have ended, then the second vehicle information is obtained, which includes power-on information, vehicle gear position, handbrake status, and vehicle speed. The height of the air suspension is controlled based on the second vehicle information.
2. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, Before detecting that the vehicle has entered wireless charging mode, the method further includes: If a wireless charging request is detected, obtain vehicle status information; Based on the vehicle status information, determine whether the vehicle meets the conditions for wireless charging; If the conditions for wireless charging are met, a closing command is sent to the battery management system to control the closing of the high-voltage charging contactor. Send wireless charging commands and the maximum charging current to the wireless charging controller to perform wireless charging.
3. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, The step of determining whether the air suspension descent conditions are met based on the first vehicle information includes: If the vehicle is in neutral (N) gear, the handbrake is engaged, the vehicle speed is 0, and the wireless charging current is greater than a preset current threshold, then the air suspension descent conditions are met.
4. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, The control of the air suspension to descend to the lowest charging position includes: A charging descent command is sent to the instrument, which responds to the charging descent command by controlling the air suspension to descend to the lowest charging position via hardwire.
5. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, The step of controlling the height of the air suspension based on the second vehicle information includes: If the power-on information is high voltage power-on, the vehicle gear is not in neutral (N), the handbrake is released, and the vehicle speed is greater than a preset speed threshold, then the air suspension is controlled to rise from the lowest charging position to the normal height.
6. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, The method further includes: If the air suspension is detected to be below the lowest charging position, wireless charging will stop, a fault alarm will be sent to the instrument panel, and a driving prohibition command will be sent to the motor controller.
7. The air suspension control method based on vehicle wireless charging according to claim 1, characterized in that, After controlling the air suspension to descend to the lowest charging position, the method further includes: If no air suspension position information is detected within a preset number of CAN communication cycles, the air suspension is controlled to return to its normal height.
8. An air suspension control device based on vehicle wireless charging, characterized in that, include: The detection module is used to obtain the first vehicle information when the vehicle enters the wireless charging state; The first vehicle information includes the vehicle's gear position, handbrake status, vehicle speed, and wireless charging current; The first judgment module is used to determine whether the air suspension descent condition is met based on the first vehicle information; if the air suspension descent condition is met, the air suspension is controlled to descend to the lowest charging position. The height control module is used to obtain second vehicle information upon detecting the end of wireless charging information. The second vehicle information includes power-on information, vehicle gear position, handbrake status, and vehicle speed. Based on the second vehicle information, the height of the air suspension is controlled.
9. A controller, characterized in that, The controller includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the air suspension control method based on vehicle wireless charging as described in any one of claims 1-7.
10. A vehicle, characterized in that, The vehicle includes a vehicle body and a controller installed in the vehicle body, wherein the controller executes the air suspension control method based on vehicle wireless charging as described in any one of claims 1-7.
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