Tire pressure control method, vehicle controller, vehicle and storage medium

Abstract

The invention discloses a tire pressure control method, a vehicle controller, a vehicle and a storage medium. The tire pressure of the vehicle is controlled based on the road surface condition of the current road surface of the vehicle. Therefore, by adjusting the tire pressure of the vehicle to the range matched with the current road surface condition, the friction noise and abrasion of vehicle tires can be reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a tire pressure control method, a vehicle controller, a vehicle and a storage medium. Background Art

[0002] During the driving process of the vehicle, the contact area, friction and grip of the vehicle tires with the ground will change under different road conditions. Therefore, the requirements for tire pressure under different road conditions may also be different. At present, the control of tire pressure is usually carried out based on the driving mode selected by the user when the vehicle is moving forward, such as tire pressure control in economy mode and sports mode. For special conditions other than forward driving conditions, such as turning around on the spot or turning at a large angle, if the vehicle performs the functions of these conditions according to the set tire pressure, it is easy to cause the vehicle to generate large friction noise and wear the vehicle tires. Summary of the invention

[0003] The embodiments of the present application provide a tire pressure control method, a vehicle controller, a vehicle and a storage medium, which reduce the friction noise and tire wear generated by the vehicle when performing working conditions, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above object, according to a first aspect of the present application, a tire pressure control method is provided, comprising: Detect the road condition of the road where the vehicle is currently located; The tire pressure of the vehicle is controlled according to the road conditions.

[0005] In an embodiment of the present application, detecting the road condition of the road on which the vehicle is currently located includes: Transmitting a driving torque signal to a motor of the vehicle and obtaining a feedback torque signal corresponding to the driving torque signal; The road condition of the current road on which the vehicle is located is determined based on the feedback torque signal.

[0006] In the embodiment of the present application, the road condition includes the road type, and determining the road type of the road on which the vehicle is currently located according to the feedback torque signal includes: A pre-established mapping table of feedback torque signals and road surface types is queried according to the feedback torque signal to obtain the road surface type of the road surface on which the vehicle is currently located.

[0007] In the embodiment of the present application, transmitting a driving torque signal to a motor of a vehicle and obtaining a feedback torque signal corresponding to the driving torque signal includes: A driving torque signal is transmitted to the motor of the vehicle through the motor controller of the vehicle, and a feedback torque signal corresponding to the driving torque signal is obtained.

[0008] In an embodiment of the present application, detecting the road condition of the road on which the vehicle is currently located includes: Perform image recognition on the road surface image of the road surface where the vehicle is currently located to obtain the road surface condition of the road surface where the vehicle is currently located.

[0009] In the embodiment of the present application, the road condition includes the road type, and the road condition of the road currently located by the vehicle is obtained by performing image recognition on the road image of the road currently located by the vehicle, including: The road surface image is input into the pre-trained road surface type classification model to obtain the road surface type of the vehicle's current road surface.

[0010] In an embodiment of the present application, detecting the road condition of the road on which the vehicle is currently located includes: When the target operating mode switching instruction is received, the road condition of the road where the vehicle is currently located is detected.

[0011] In the embodiment of the present application, the road surface condition includes epoxy floor pavement, cement pavement, or asphalt pavement.

[0012] In an embodiment of the present application, the tire pressure of the vehicle is controlled according to the road conditions, including: comparing the current tire pressure of the vehicle with the target tire pressure for the target operating condition; When the current tire pressure does not match the target tire pressure, the tire pressure of the vehicle is adjusted to the target tire pressure.

[0013] In the embodiment of the present application, controlling the tire pressure of the vehicle according to the road condition further includes: According to the road condition, a pre-established road condition and tire pressure mapping table is queried to obtain the target tire pressure corresponding to the road condition under the target operating condition.

[0014] In an embodiment of the present application, the tire of the vehicle is connected to the tire pressure control assembly via an air pipe; Adjusting the vehicle's tire pressure to the target tire pressure includes: A tire pressure adjustment signal is sent to the tire pressure control component according to the target tire pressure and the current tire pressure of the vehicle, so that the tire pressure of the tire is adjusted to the target tire pressure through the tire pressure control component.

[0015] In an embodiment of the present application, the target operating condition includes at least one of an on-the-spot U-turn condition and a large-angle turning condition.

[0016] In the embodiment of the present application, the tire pressure control method further includes: Determine whether the vehicle can operate in the target operating condition based on the current environment information of the vehicle; When it is determined that the vehicle can be operated in the target operating condition, a prompt message is issued to remind the user; Determine whether to issue a target operating mode switching instruction according to the user's response operation to the prompt information.

[0017] According to a second aspect of the present application, a vehicle controller is provided, comprising: a memory configured to store instructions; and The processor is configured to call instructions from the memory and implement the above tire pressure control method when executing the instructions.

[0018] According to a third aspect of the present application, a vehicle is provided, comprising the above-mentioned vehicle controller.

[0019] In an embodiment of the present application, the vehicle further includes a tire pressure control component connected to the vehicle controller and the tires of the vehicle, for adjusting the tire pressure of the tire to a target tire pressure according to a tire pressure adjustment signal sent by the vehicle controller.

[0020] In an embodiment of the present application, the tire pressure control component includes a compressor, an air tank and an on-off valve. The tire is connected to the on-off valve through an air pipe, the air tank is respectively connected to the on-off valve and the compressor through air pipes, and the on-off valve and the compressor are respectively connected to the vehicle controller.

[0021] According to a fourth aspect of the present application, a computer-readable storage medium is provided, on which instructions are stored, and when the instructions are executed by a processor, the processor executes the above-mentioned tire pressure control method.

[0022] In summary, the present application controls the tire pressure of the vehicle based on the road conditions of the road the vehicle is currently on. In this way, by adjusting the tire pressure of the vehicle to a range that matches the current road conditions, the friction noise and wear of the vehicle tires can be reduced.

[0023] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0024] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0025] Figure 1 A schematic diagram of an application scenario of a tire pressure control method provided in an embodiment of the present application; Figure 2A schematic flow chart of a tire pressure control method provided in an embodiment of the present application; Figure 3 A schematic flow chart of a tire pressure control method provided in a specific embodiment of the present application; Figure 4 A schematic diagram of the structure of a tire pressure control device provided in an embodiment of the present application; Figure 5 A structural block diagram of a vehicle controller provided in an embodiment of the present application; Figure 6 A structural block diagram of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In the present application, the word "exemplary" is used to mean "used as an example, illustration or description". Any embodiment described as "exemplary" in the present application is not necessarily interpreted as being more preferred or more advantageous than other embodiments. In order to enable any technician in the field to implement and use the present application, the following description is given. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can also be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details that make the description of the present application obscure. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest range of principles and features disclosed in the present application.

[0028] Figure 1 Schematic diagram of an application scenario of a tire pressure control method provided in an embodiment of the present application. Figure 1As shown, the application scenario provides a vehicle, which may include a vehicle controller 1, a motor assembly 2, a tire pressure sensor 3, a tire pressure control assembly 4, a display device 5, a tire 6, a radar 7, and an image acquisition device 8. The vehicle controller 1 is connected to the motor assembly 2, the tire pressure sensor 3, the tire pressure control assembly 4, the display device 5, the vehicle radar 7, and the image acquisition device 8, respectively, and the motor assembly 2, the tire pressure sensor 3, and the tire pressure control assembly 4 are also connected to the tire 6, respectively. As an example, the vehicle controller 1 may be a vehicle control unit (VCU), which may also be called an electronic control unit.

[0029] The vehicle controller 1 can send a control instruction to the motor assembly 2, and obtain a feedback signal of the tire 6 fed back by the motor assembly 2 based on the control instruction. Among them, the motor assembly 2 can include a drive motor 21 and a motor controller 22. The drive motor 21 is connected to the tire, and is used to transmit a drive torque signal to the tire 6 to rotate the tire 6, thereby controlling the driving direction of the vehicle. The motor controller 22 is connected between the drive motor 21 and the vehicle controller 1, and is used to receive the control signal sent by the vehicle controller 1, and control the drive motor 21 based on the control signal.

[0030] For example, the motor assembly 2 can generate a feedback torque signal based on the driving torque signal, and feed the feedback torque signal back to the vehicle controller 1, and then the vehicle controller 1 determines the road condition of the road the vehicle is currently on based on the feedback torque signal. As an example, the road condition can include the road type.

[0031] The tire pressure sensor 3 is connected between the tire 6 and the vehicle controller 1 and is used to collect the tire pressure signal of the tire 6 .

[0032] The tire pressure control component 4 is connected to the vehicle controller 1 and the tire 6, and is used to adjust the tire pressure of the tire to the target tire pressure according to the tire pressure adjustment signal sent by the vehicle controller 1. The target tire pressure is the tire pressure of the vehicle determined based on the road conditions of the road where the vehicle is currently located.

[0033] The tire pressure control assembly 4 may include a compressor 41, an air tank 42, and an on-off valve 43. The tire 6 may be connected to the on-off valve 43 via an air pipe, and the air tank 42 is connected to the compressor 41 and the on-off valve 43 via air pipes, respectively. The compressor 41 and the on-off valve 43 are also connected to the vehicle controller 1. The on-off valve 43 is connected to the inflation and deflation hub bearing 61 of the tire 6 via an air pipe to inflate and deflate the tire 6. The compressor 41 may control the air tank 42 and the on-off valve 43 according to the tire pressure adjustment signal to adjust the tire pressure to the target tire pressure.

[0034] Specifically, when the compressor 41 receives the tire pressure adjustment signal sent by the vehicle controller 1, the air can be compressed into high-pressure gas and stored in the air tank 42. At the same time, when the on-off valve 43 receives the tire pressure adjustment signal, it can be opened or closed according to the tire pressure adjustment signal, thereby controlling the flow of the high-pressure gas in the air tank 42. For example, if the tire pressure of the tire 6 needs to be increased, the tire pressure adjustment signal is to open the on-off valve 43, then the on-off valve 43 is opened, and the high-pressure gas flows from the air tank 42 into the tire 6. Conversely, if the tire pressure of the tire 6 needs to be reduced, the tire pressure adjustment signal is to close the on-off valve 43, then the on-off valve 43 is closed, and the high-pressure gas cannot flow from the air tank 42 into the tire 6. In this way, the tire pressure of the tire 6 can be adjusted based on the control signal of the vehicle controller 1 through the tire pressure control component 4.

[0035] The display device 5 is a device for human-computer interaction. The user can operate on the display device 5 and also obtain the information displayed on the display device 5. As an example, the display device 5 can be a central control display screen. After receiving the user's operation instruction, the display device 5 sends the operation instruction to the vehicle controller 1, and the vehicle controller 1 performs subsequent data processing based on the operation instruction.

[0036] The vehicle-mounted radar 7 and the image acquisition device 8 are respectively connected to the vehicle controller 1 and can be set on the outer surface of the vehicle. The vehicle-mounted radar 7 can be used to collect environmental information where the vehicle is currently located. After the vehicle controller 1 receives the environmental information, it can determine whether the image acquisition device 8 can be operated based on the environmental information. It can be used to obtain a road surface image of the road surface where the vehicle is currently located. After the vehicle controller 1 receives the road surface image, it can perform image recognition on the road surface image to obtain the road surface condition of the road surface where the vehicle is currently located.

[0037] It should be understood that Figure 1 The application scenarios shown are merely adaptive. Other application scenarios may also be configured according to implementation needs. The tire pressure control method of an embodiment of the present application is described in detail below in conjunction with the accompanying drawings. Although a logical sequence is shown in the flowchart, in some cases, the steps shown or described may be performed in an order different from that shown in the accompanying drawings.

[0038] Figure 2 FIG. 1 is a flow chart of a tire pressure control method provided in an embodiment of the present application. Figure 2 As shown, the tire pressure control method may include steps 201-202, which are described in detail below.

[0039] Step 201: Detect the road condition of the road where the vehicle is currently located.

[0040] As an example, when a target operating condition switching instruction is received, the road condition of the road where the vehicle is currently located can be detected. The target operating condition switching instruction refers to an instruction for controlling the vehicle to switch from the current operating condition to a preset target operating condition. Among them, the preset target operating condition may include various types of operating conditions of the vehicle. As an example of an embodiment of the present application, the target operating condition may include, but is not limited to, an on-the-spot U-turn condition or a large-angle turning condition. Among them, the on-the-spot U-turn condition refers to an operating scenario in which the vehicle's driving direction is to be changed to a direction opposite to the current driving direction, and an on-the-spot U-turn is performed. A large-angle turning condition refers to an operating scenario in which the angle between the vehicle's driving direction to be changed and the current driving direction exceeds a certain value. For example, a turning condition in which the vehicle's reverse disk is turned to the limit can be used as a large-angle turning condition.

[0041] In the embodiment of the present application, the road surface condition refers to the characteristics and performance of the road surface on which the vehicle is located. For example, the road surface condition may include the road surface type, and the road surface type refers to the category to which the road surface belongs after being classified based on a certain classification method. In one example, the classification of the road surface type can be differentiated based on actual needs, for example, it can be differentiated according to the materials used for the road surface, the structure of the road, etc. As an example of the embodiment of the present application, the road surface type can be divided into epoxy floor pavement, cement pavement, asphalt pavement and other types according to the materials used for the road.

[0042] Step 202: Control the tire pressure of the vehicle according to the road conditions.

[0043] Because the friction and adhesion coefficient that the tire needs to overcome with the ground are different under different target operating conditions and road conditions. Therefore, the embodiment of the present application is based on a variety of road conditions under different target operating conditions, and a target tire pressure is set. That is to say, under the target operating condition corresponding to the target operating condition switching instruction, each road condition corresponds to a target tire pressure. The target tire pressure can make the vehicle run under the target operating condition and the road condition, and the noise generated by the tire and the ground is small, the tire wear is small, and the stability of the vehicle is high. Therefore, in the embodiment of the present application, only based on the road condition under the target operating condition, the target tire pressure corresponding to the road condition can be obtained. The tire pressure of the tire is adjusted based on the target tire pressure, thereby improving the stability and safety of the vehicle under the target operating condition.

[0044] In the embodiment of the present application, the tire pressure of the vehicle is controlled based on the road condition of the road the vehicle is currently on in response to the target operating condition switching instruction. In this way, when the vehicle is in a target operating condition such as a U-turn or a large-angle turn, the tire pressure of the vehicle is adjusted to a range that matches the current operating condition, which can reduce the friction noise and wear of the vehicle tires, and reduce the instability of the vehicle such as tilting or even rolling over, thereby improving the stability and safety of the vehicle.

[0045] In an embodiment of the present application, the vehicle's current environmental information can also be obtained through the on-board radar. Then, it is determined whether the vehicle can operate in the target operating condition based on the environmental information. For example, for a vehicle U-turn condition, the on-board radar can be used to detect whether there are obstacles around the vehicle. If there are obstacles within the U-turn range of the vehicle, it is determined that the vehicle cannot operate in the target operating condition. If there are no obstacles within the U-turn range of the vehicle and there is no risk of scratching other objects when executing the target operating condition in the current environment, it is determined that the vehicle can operate in the target operating condition.

[0046] When it is determined that the vehicle can operate in the target operating condition, the vehicle controller can issue a prompt message to remind the user. For example, the prompt message can be sent to a display device. The user can respond to the prompt message on the display device. Then, based on the user's response to the prompt message, determine whether to issue a target operating condition switching instruction. For example, if it is determined that the vehicle can perform an on-the-spot U-turn condition, the vehicle controller sends a prompt message to the display device. The display screen of the display device shows: The vehicle is allowed to turn around on the spot, please click "Yes" or "No". If the user selects the "Yes" response operation, the vehicle controller performs the on-the-spot U-turn process based on the response operation. If the user selects the "No" response operation, the vehicle controller turns off the on-the-spot U-turn function based on the response operation.

[0047] The embodiment of the present application determines whether the vehicle can operate the target operating condition based on environmental information, reduces dangerous situations due to the presence of obstacles, and improves the safety of vehicle driving.

[0048] The embodiment of the present application can determine the road condition of the road the vehicle is currently on in a variety of ways. For example, the road condition can be determined by a feedback torque signal fed back by a motor or a road image fed back by an image acquisition device. The above two ways are used as examples for further explanation.

[0049] As an example, in step 201, a driving torque signal may be transmitted to a motor of the vehicle, and a feedback torque signal corresponding to the driving torque signal may be obtained. As an example, a driving torque signal may be transmitted to a motor of the vehicle through a motor controller of the vehicle, and a feedback torque signal corresponding to the driving torque signal may be obtained.

[0050] The driving torque signal is a torque transmitted to the driving motor of the vehicle through the motor controller of the vehicle based on the driving signal of the vehicle controller. When the tire moves, a feedback signal based on the driving torque signal, i.e., a feedback torque signal, is generated. The feedback torque signal can indicate the current movement of the tire. Then, the vehicle controller can determine the road condition of the road where the vehicle is currently located based on the feedback torque signal.

[0051] Taking the classification of road conditions by road type as an example, in the embodiment of the present application, a feedback torque signal and road type mapping table can be pre-established, and the mapping table includes a mapping relationship between the feedback torque signal and the road type. The mapping table can be established by testing the vehicle on different types of road surfaces in advance to obtain the corresponding relationship between the road type and the feedback torque signal, and then establishing a mapping table between the torque and the road type based on the corresponding relationship. When the vehicle controller receives the feedback torque signal returned by the motor controller, the feedback torque signal and the road type mapping table can be queried based on the feedback torque signal to obtain the road type of the road the vehicle is currently on.

[0052] It should be noted that, in addition to establishing a mapping table between feedback torque signals and road surface types, the embodiments of the present application may also include other methods for determining road surface types based on feedback torque signals, for example, a trained neural network model may be provided through a neural network model, the feedback torque signal may be input into the neural network model, and then the predicted road surface type may be obtained.

[0053] As another example, in step 201, a road surface image of the road surface where the vehicle is currently located may be first acquired through a vehicle-mounted image acquisition device. Then, image recognition is performed on the road surface image to obtain the road surface condition of the road surface where the vehicle is currently located.

[0054] In the embodiment of the present application, the image acquisition device may include but is not limited to a camera, a monitoring device, etc. After receiving the road surface image sent by the image acquisition device, the vehicle controller recognizes the road surface image. Specifically, the image may be pre-processed such as denoising and adjusting the brightness to improve the image quality. Then, features are extracted from the pre-processed road surface image to distinguish different road surface conditions. Next, the extracted features are input into a pre-trained road surface condition classification model to obtain the road surface condition of the road surface where the vehicle is currently located.

[0055] Still taking the classification of road conditions by road type as an example, in an embodiment of the present application, a road type classification model can be pre-trained to classify road types based on road images collected by an image acquisition device. Specifically, sample training data sets of different road types can be collected first, and these sample training data sets can include sample images and calibration parameters of corresponding road types. Then, the collected sample image data are input into the model to be trained to obtain prediction parameters. Next, iterations are performed based on the calibration parameters and prediction parameters until the model converges to obtain a trained road type classification model. When the vehicle controller receives the road image fed back by the image acquisition device, the road image can be input into the trained road type classification model to obtain the road type of the road the vehicle is currently on. By classifying road types through a machine learning model, the accuracy of road type determination can be improved.

[0056] In step 202 of the embodiment of the present application, the current tire pressure of the vehicle may be obtained first. For example, the current tire pressure of the vehicle may be obtained through a tire pressure sensor. Then, the target tire pressure corresponding to the road condition under the target operating condition is obtained. Next, determine whether the current tire pressure matches the target tire pressure. For example, when the absolute difference between the current tire pressure and the target tire pressure is greater than or equal to a preset value, it indicates a mismatch. If the current tire pressure does not match the target tire pressure, it indicates that the current tire pressure needs to be adjusted, and the vehicle controller adjusts the tire pressure of the vehicle to the target tire pressure. In one example, a tire pressure adjustment signal may be sent to the tire pressure control component based on the target tire pressure and the current tire pressure of the vehicle, so that the tire pressure of the tire is adjusted to the target tire pressure through the tire pressure control component.

[0057] In an embodiment of the present application, the target tire pressure corresponding to the road surface condition under the target operating condition can be determined based on a pre-established road surface condition and tire pressure mapping table. The road surface condition and tire pressure mapping table includes a mapping relationship between road surface conditions and the tire pressure of the vehicle. Among them, the mapping table can make the vehicle operate under the target operating condition under different tire pressure conditions according to the vehicle under different road conditions, and then detect the noise, loss parameters, etc. generated by the vehicle under different tire pressure conditions, and then obtain the real-time tire pressure corresponding to the condition with less noise and lower loss parameters as the target tire pressure corresponding to the road surface condition, and establish the road surface condition and tire pressure mapping table. The vehicle controller can query the road surface condition and tire pressure mapping table according to the road surface condition to obtain the target tire pressure corresponding to the road surface condition.

[0058] Figure 3 FIG. 1 is a flow chart of a tire pressure control method provided in a specific embodiment of the present application. Figure 3 As shown, in a specific embodiment, taking the target operating condition as an on-the-spot U-turn condition and determining the road type based on the feedback torque signal as an example, the tire pressure control method may include steps 301-307.

[0059] Step 301, obtaining the current environment information of the vehicle; Step 302: determine whether the vehicle meets the requirement of turning around in place. If so, proceed to step 303; otherwise, return to step 301.

[0060] Step 303: Pre-start the on-the-spot U-turn to obtain the feedback torque signal of the motor assembly.

[0061] Step 304: Determine the road surface type, wherein the road surface type may include road surface 1, road surface 2, and road surface 3, which respectively represent different road surface types.

[0062] Step 305 , determine whether the current tire pressure matches the target tire pressure, if not, proceed to step 306 , if yes, proceed to step 307 .

[0063] Step 306: Adjust the tire pressure to the target tire pressure.

[0064] Step 307: Start turning around on the spot.

[0065] The embodiment of the present application uses the feedback torque signal to identify and determine the road surface type, define the current vehicle load and road surface conditions, ensure that the tire pressure is in the optimal state, reduce the occurrence of severe tire friction noise and wear, and reduce the unstable state of the vehicle turning on the spot. In addition, the active control of tire pressure is combined with the vehicle controller identification, which expands the scope of use of controlling tire pressure. Subsequent new functions can adjust tire pressure based on this control method, and only need to update the preset tire pressure control logic during the test process.

[0066] The following example uses the scenario where a vehicle needs to turn around in an underground parking lot as an example. When a vehicle is parked in an underground parking lot and is preparing to leave the garage, and needs to turn around in place due to space restrictions in the parking lot, the on-board radar monitors the surrounding environment of the vehicle to determine that the requirements are met and prompts the display device to allow a turn around in place. The vehicle controller determines the road condition of the road where the vehicle is located by transmitting the drive torque signal and the feedback torque signal through the motor controller, and the tire pressure sensor feeds back the tire pressure signal of the current tire. The vehicle controller matches the current tire pressure with the road condition. If the current tire pressure matches the road condition, the turn around in place begins. If the current tire pressure does not match the road condition, the vehicle controller gives a tire pressure signal instruction including the target tire pressure, controls the compressor, the air tank and the on-off valve to connect the tire inflation and deflation hub bearing through the air pipe to adjust the tire pressure. When the tire pressure is adjusted to the target tire pressure, the vehicle's turn around in place begins. In this embodiment, the vehicle controller can select multiple modes to match and adjust the road conditions and tire pressure, and can also make fine adjustments based on the tire pressure sensor by real-time monitoring of the current tire pressure status, etc., to ensure that the tires and the ground are always in the optimal state when turning around on the spot. In addition, in non-on-the-spot U-turn conditions, such as driving conditions, the tire pressure can also be adjusted to match the stiffness and damping of the suspension in different modes by matching the suspension state, such as comfort mode or sports mode.

[0067] Figure 4 Schematic diagram of the structure of a tire pressure control device 400 provided in an embodiment of the present application. Figure 4 The tire pressure control device 400 may include a detection module 401 and a control module 402. The detection module 401 is used to detect the road condition of the road the vehicle is currently on. The control module 402 is used to control the tire pressure of the vehicle according to the road condition.

[0068] Among them, the detection module 401 and the control module 402 can be used to execute steps 201-202 in the embodiment corresponding to the above-mentioned tire pressure control method respectively. For the specific implementation methods of these modules and more details, please refer to the corresponding method part, which will not be repeated here.

[0069] Figure 5 1 is a structural block diagram of a vehicle controller 1 provided in an embodiment of the present application. The vehicle controller 1 includes a memory 501 and a processor 502. The memory 501 is configured to store instructions. The processor 502 is configured to call instructions from the memory and implement the above tire pressure control method when executing the instructions.

[0070] Figure 6 This is a structural block diagram of a vehicle 600 provided in an embodiment of the present application. The vehicle 600 includes the vehicle controller 1 described above.

[0071] The vehicle 600 in the embodiment of the present application may be a fuel vehicle, a plug-in hybrid vehicle, a new energy vehicle, etc., and the present application does not make any specific limitation on this.

[0072] An embodiment of the present application also provides a computer-readable storage medium, on which instructions are stored. When the instructions are executed by a processor, the processor is configured to execute the above-mentioned tire pressure control method.

[0073] Since the instructions stored in the vehicle controller, the vehicle and the computer-readable storage medium can execute the steps in any tire pressure control method provided in the embodiments of the present application, the beneficial effects that can be achieved by any tire pressure control method provided in the embodiments of the present application can be achieved. Please refer to the previous embodiments for details and will not be repeated here.

[0074] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0075] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0076] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0077] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0078] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0079] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0080] Computer readable media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated communication signals and carrier waves.

[0081] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0082] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A tire pressure control method, characterized in that: include: Detect the road condition of the road where the vehicle is currently located; The tire pressure of the vehicle is controlled according to the road condition.

2. The tire pressure control method according to claim 1, characterized in that: The detecting of the road condition of the road where the vehicle is currently located comprises: Transmitting a driving torque signal to a motor of the vehicle, and obtaining a feedback torque signal corresponding to the driving torque signal; The road condition of the road on which the vehicle is currently located is determined according to the feedback torque signal.

3. The tire pressure control method according to claim 2, characterized in that: The road condition includes a road type, and determining the road condition of the road on which the vehicle is currently located according to the feedback torque signal includes: A pre-established mapping table of feedback torque signals and road surface types is queried according to the feedback torque signal to obtain the road surface type of the road surface on which the vehicle is currently located.

4. The tire pressure control method according to claim 2, characterized in that: The transmitting of the driving torque signal to the motor of the vehicle and obtaining the feedback torque signal corresponding to the driving torque signal includes: A driving torque signal is transmitted to the motor of the vehicle through the motor controller of the vehicle, and a feedback torque signal corresponding to the driving torque signal is obtained.

5. The tire pressure control method according to claim 1, characterized in that: The detecting of the road condition of the road where the vehicle is currently located comprises: Image recognition is performed on the road surface image of the road surface where the vehicle is currently located to obtain the road surface condition of the road surface where the vehicle is currently located.

6. The tire pressure control method according to claim 5, characterized in that: The road condition includes a road type, and the performing image recognition on the road image of the road where the vehicle is currently located to obtain the road condition of the road where the vehicle is currently located includes: The road surface image is input into a pre-trained road surface type classification model to obtain the road surface type of the road surface where the vehicle is currently located.

7. The tire pressure control method according to claim 1, characterized in that: The detecting of the road condition of the road where the vehicle is currently located comprises: When the target operating mode switching instruction is received, the road condition of the road where the vehicle is currently located is detected.

8. The tire pressure control method according to any one of claims 1 to 7, characterized in that: The road surface conditions include epoxy floor pavement, cement pavement, or asphalt pavement.

9. The tire pressure control method according to any one of claims 1 to 7, characterized in that: The controlling the tire pressure of the vehicle according to the road condition includes: comparing a current tire pressure of the vehicle with a target tire pressure under a target operating condition; When the current tire pressure does not match the target tire pressure, the tire pressure of the vehicle is adjusted to the target tire pressure.

10. The tire pressure control method according to claim 9, characterized in that: The controlling the tire pressure of the vehicle according to the road condition further includes: A pre-established road surface condition and tire pressure mapping table is queried according to the road surface condition to obtain a target tire pressure corresponding to the road surface condition under the target operating condition.

11. The tire pressure control method according to claim 9, characterized in that: The tire of the vehicle is connected to the tire pressure control assembly via an air pipe; Adjusting the tire pressure of the vehicle to the target tire pressure includes: A tire pressure adjustment signal is sent to the tire pressure control component according to the target tire pressure and the current tire pressure of the vehicle, so that the tire pressure of the tire is adjusted to the target tire pressure through the tire pressure control component.

12. The tire pressure control method according to claim 9, characterized in that: The target operating condition includes at least one of an on-the-spot U-turn condition and a large-angle turning condition.

13. The tire pressure control method according to any one of claims 1 to 7, characterized in that: The tire pressure control method further includes: Determining whether the vehicle can operate in a target operating condition according to the current environment information of the vehicle; When it is determined that the vehicle can be operated in the target operating condition, a prompt message is issued to remind the user; Determine whether to issue a target operating state switching instruction according to the user's response operation to the prompt information.

14. A vehicle controller, characterized in that: include: a memory configured to store instructions; as well as A processor is configured to call the instruction from the memory and implement the tire pressure control method according to any one of claims 1 to 13 when executing the instruction.

15. A vehicle, characterized in that: include: The vehicle controller of claim 14.

16. The vehicle according to claim 15, characterized in that It also includes a tire pressure control component connected to the vehicle controller and the tires of the vehicle, which is used to adjust the tire pressure of the tire to a target tire pressure according to a tire pressure adjustment signal sent by the vehicle controller.

17. The vehicle according to claim 16, characterized in that The tire pressure control component includes a compressor, an air tank and an on-off valve. The tire is connected to the on-off valve through an air pipe. The air tank is respectively connected to the on-off valve and the compressor through the air pipe. The on-off valve and the compressor are respectively connected to the vehicle controller.

18. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, which, when executed by a processor, enable the processor to execute the tire pressure control method according to any one of claims 1 to 13.

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