Vehicle tire adaptation identification method and system, medium and vehicle

Abstract

The invention provides a vehicle tire adaptation identification method and system, a medium and a vehicle, and relates to the technical field of automobile assembly.The vehicle tire adaptation identification method comprises the steps that vehicle driving type information and tire state information are obtained, and a reference wheel and a non-reference wheel of the vehicle are determined based on the vehicle driving type information, the tire state information comprises a reference wheel angular velocity, a non-reference wheel angular velocity and an actual rolling radius of each tire, and the to-be-measured tire is a non-reference wheel; obtaining a reference wheel rotating speed based on the reference wheel angular speed and a preset reference wheel radius; according to the actual rolling radius, the reference wheel rotating speed, the non-reference wheel angular speed and / or the reference wheel angular speed, the maximum difference rolling radius is taken out from the actual rolling radius, and the adaptation condition of the tire to be detected is determined based on the deviation between the maximum difference rolling radius and the preset rolling radius. And after calibration and development of the upper-layer controller of the vehicle are finished, the tire specification is increased, various detail parameters of the vehicle do not need to be modified again, and the vehicle development workload is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile assembly, and in particular to a vehicle tire adaptation identification method, system, medium and vehicle. Background Art

[0002] Tires are the only part of a car that comes into contact with the road. The choice of tires directly affects the vehicle's handling, comfort, safety, and fuel economy. Correct tire selection can not only improve driving comfort and safety, but also extend the tire's service life, thereby reducing maintenance costs.

[0003] In traditional tire matching, after selecting the tire and tire specifications, they are used as the basic components of the vehicle, and then the chassis stability adjustment is performed to determine more detailed parameters such as tire pressure. Then, on this basis, the functions and performance of each upper-level controller are calibrated. In this process, if there are many tire specifications configured and the differences are large, the variables calibrated by the upper-level brake system control controller will increase exponentially; if the tire specifications are increased after the upper-level controller is calibrated and developed (including modified vehicles), it will lead to an increase in development workload and development costs. The above tire selection method takes a long time to invest, has low efficiency and high cost. Currently, it can also be evaluated through subjective driving, but this tire selection method has no data support and is highly subjective. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a vehicle tire adaptation identification method, system, medium and vehicle, which are used to solve the problem that vehicle tire selection in the prior art is relatively complicated.

[0005] To achieve the above objectives and other related objectives, the present invention provides a vehicle tire adaptation identification method, comprising:

[0006] Acquire vehicle drive type information and tire status information, and determine the reference wheel and non-reference wheel of the vehicle based on the vehicle drive type information, wherein the vehicle status information includes the vehicle braking status, and the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is the non-reference wheel;

[0007] Based on the reference wheel angular velocity and the preset reference wheel radius, a reference wheel rotation speed is obtained;

[0008] According to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, a maximum difference rolling radius is taken out from the actual rolling radius, and based on the deviation between the maximum difference rolling radius and a preset rolling radius, the adaptation of the tire to be tested is determined.

[0009] In an exemplary embodiment, determining the fit of the tire to be tested based on the deviation between the maximum difference rolling radius and a preset rolling radius includes:

[0010] Calculating a radius deviation rate between the maximum difference rolling radius and the preset rolling radius;

[0011] If the radius deviation rate is less than or equal to the preset radius deviation rate, the tire to be tested is suitable for the vehicle;

[0012] If the radius deviation rate is greater than the preset radius deviation rate, the tire to be tested is not suitable for the vehicle.

[0013] In an exemplary embodiment, after determining the fitness of the tire to be tested, the method includes: informing the driver of the fitness of the tire to be tested through an indicator light, a screen or a sound.

[0014] In an exemplary embodiment, after acquiring the vehicle state information and the tire state information, before obtaining the reference wheel speed based on the reference wheel angular velocity and the preset reference wheel radius, the method includes:

[0015] Acquiring vehicle status information, wherein the vehicle status information includes a current vehicle speed;

[0016] When the current vehicle speed is greater than the preset vehicle speed value, a reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius;

[0017] When the current vehicle speed is less than or equal to the preset vehicle speed value, the current vehicle speed is increased until the current vehicle speed is greater than the preset vehicle speed value.

[0018] In an exemplary embodiment, after obtaining the vehicle driving type information and the tire status information, before obtaining the reference wheel speed based on the reference wheel angular velocity and the preset reference wheel radius, the method includes:

[0019] The tire status information includes the tire pressure of each tire;

[0020] When the tire pressure of each tire is greater than a preset minimum tire pressure and less than a preset maximum tire pressure, a reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius;

[0021] When the tire pressure of any tire is less than the preset minimum tire pressure, or greater than the preset maximum tire pressure, it is prompted that the tire pressure is abnormal.

[0022] In an exemplary embodiment, obtaining a reference wheel rotation speed based on the reference wheel angular velocity and a preset reference wheel radius includes:

[0023] When the vehicle is front-wheel drive, the two front wheels of the vehicle are reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is the reference wheel speed;

[0024] When the vehicle is rear-wheel drive or four-wheel drive, the two rear wheels of the vehicle are taken as reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is taken as the reference wheel speed.

[0025] In an exemplary embodiment, obtaining vehicle driving type information and tire status information further includes:

[0026] Acquiring vehicle status information, wherein the vehicle status information includes a vehicle braking status;

[0027] When the vehicle braking state is no braking, a reference wheel speed is obtained based on the reference wheel angular velocity and a preset reference wheel radius;

[0028] Among them, when the braking state of the vehicle is no braking, the anti-lock braking system, the anti-skid control system, the anti-drag control system, the advanced braking system and the vehicle dynamic control system are all in the off state.

[0029] The present invention provides a vehicle tire adaptation identification system, comprising:

[0030] A vehicle information acquisition module, used to acquire vehicle drive type information and tire status information, and determine the reference wheel and non-reference wheel of the vehicle based on the vehicle drive type information, wherein the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is the non-reference wheel;

[0031] A data processing module, used for obtaining a reference wheel rotation speed based on the reference wheel angular velocity and a preset reference wheel radius;

[0032] The picking and comparing module is used to extract the maximum difference rolling radius from the actual rolling radius according to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, and determine the adaptability of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius.

[0033] The present invention provides a computer-readable storage medium, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute a vehicle tire adaptation identification method as described above.

[0034] The present invention provides a vehicle, characterized by comprising a vehicle tire adaptation identification method as described above.

[0035] As described above, the vehicle tire adaptation identification method, system, medium and vehicle of the present invention have the following beneficial effects:

[0036] By taking the maximum difference rolling radius from the actual rolling radius and determining the adaptability of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius, it is convenient to increase tire specifications after the calibration and development of the vehicle upper controller, without having to modify various detailed parameters of the vehicle again, thus reducing the workload and development cost of vehicle development. At the same time, during the off-line testing of the vehicle, it is possible to determine whether the tire is adapted to avoid the occurrence of mis-installation and mixed installation of tires. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 Shown is a schematic flow chart of a vehicle tire adaptation identification method according to an embodiment of the present invention.

[0038] Figure 2 Shown is a block diagram of a vehicle tire fit identification system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0040] See also Figure 1 and Figure 2 It should be noted that the diagrams provided in the present embodiment only illustrate the basic concept of the present invention in a schematic manner. The diagrams only show the components related to the present invention rather than the number, shape and size of the components in the actual implementation. The type, quantity and proportion of each component in the actual implementation can be changed at will, and the component layout type may also be more complicated. The structure, proportion, size, etc. shown in the drawings of the present specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of the relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0041] like Figure 1 As shown, the present invention provides a vehicle tire adaptation identification method, comprising:

[0042] Step S110: Obtain vehicle drive type information and tire status information, and determine the vehicle's reference wheels and non-reference wheels based on the vehicle drive type information, wherein the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is a non-reference wheel.

[0043] In an exemplary embodiment, the vehicle drive type information includes front-wheel drive, rear-wheel drive and four-wheel drive. If the vehicle is front-wheel drive, the two front wheels of the vehicle are the reference wheels. If the vehicle is rear-wheel drive or four-wheel drive, the two rear wheels of the vehicle are the reference wheels, and the wheel speed of the reference wheel is used as the basic data for subsequent comparison to ensure the accuracy of the tire adaptation recognition result. The reference wheel angular velocity and the non-reference wheel angular velocity are both obtained by the collaborative work of the wheel speed sensor (Wheel Speed ​​Sensor, referred to as WSS), the processing circuit and the controller. The wheel speed sensor is mainly composed of a magnetic sensor and a gear. When the tire rotates, the gear will drive the magnetic sensor to generate an electrical signal, and the electrical signal is converted into the angular velocity information of the tire through the processing circuit and the controller.

[0044] In an exemplary embodiment, the actual rolling radius of each tire is estimated by the vehicle ESC (Electronic Stability Controller).

[0045] In an exemplary embodiment, after the vehicle state information and the tire state information are acquired and before the reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius, step S210 is included.

[0046] Step S210: The vehicle status information also includes the current vehicle speed; when the current vehicle speed is greater than the preset vehicle speed value, the reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius; when the current vehicle speed is less than or equal to the preset vehicle speed value, the current vehicle speed is increased until the current vehicle speed is greater than the preset vehicle speed value.

[0047] In an exemplary embodiment, after the vehicle state information and the tire state information are acquired and before the reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius, step S310 is included.

[0048] Step S310: The tire status information includes the tire pressure of each tire; when the tire pressure of each tire is greater than the preset minimum tire pressure and less than the preset maximum tire pressure, the reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius; when the tire pressure of any tire is less than the preset minimum tire pressure, or greater than the preset maximum tire pressure, it is prompted that the tire pressure is abnormal.

[0049] By measuring the tire pressure of each tire and determining whether the above tire pressures are within a certain range, it can be ensured that ESC obtains a more accurate estimate when estimating the actual rolling radius of each tire, thereby ensuring the correctness of the tire adaptation recognition results.

[0050] In an exemplary embodiment, the driver is reminded through the central control screen of the vehicle, for example, "Tire pressure is not up to standard" is displayed on the central control screen, or an exclamation mark is displayed at the tire pressure prompt position to provide a reminder. In another exemplary embodiment, the driver is reminded through voice, and the prompt may be "Reminder: Tire pressure is abnormal, and tire adaptation identification cannot be performed." The method of reminding tire pressure can be adjusted according to actual production needs.

[0051] In an exemplary embodiment, the tire pressure of each tire of the vehicle is obtained by a tire pressure sensor.

[0052] Step S120: Obtaining a reference wheel rotation speed based on a reference wheel angular velocity and a preset reference wheel radius.

[0053] In an exemplary embodiment, acquiring vehicle driving type information and tire status information further includes step S410 .

[0054] Step S410: Acquire vehicle status information, which includes the vehicle braking status; when the vehicle braking status is no braking, obtain the reference wheel speed based on the reference wheel angular velocity and the preset reference wheel radius; wherein, when the vehicle braking status is no braking, the anti-lock braking system, anti-skid control system, anti-drag control system, advanced braking system and vehicle dynamic control system are all in the off state.

[0055] It can be understood that the braking state of the vehicle includes braking and no braking. When the vehicle is in the no-braking state, there is only rolling friction between the tires and the ground, but no sliding friction; when the vehicle is in the braking state, there is sliding friction between the tires and the ground. When the anti-lock braking system and the anti-skid control system are both in the off state, there is no sliding friction between the tires and the ground. When the anti-drag control system, the advanced braking system and the vehicle dynamic control system are all in the off state, a more accurate reference wheel angular velocity can be obtained, thereby obtaining a more accurate reference wheel speed, so as to avoid affecting the accuracy of vehicle tire adaptation identification when the vehicle is in the braking state, so as to improve its recognition confidence.

[0056] In an exemplary embodiment, obtaining a reference wheel rotation speed based on a reference wheel angular velocity and a preset reference wheel radius includes step S510.

[0057] Step S510: If the vehicle is front-wheel drive, the two front wheels of the vehicle are reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is the reference wheel speed; if the vehicle is rear-wheel drive or four-wheel drive, the two rear wheels of the vehicle are reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is the reference wheel speed, and the formula is as follows:

[0058]

[0059] Among them, v u (t)—reference wheel speed, km / h;

[0060] r i is the wheel rolling radius, mm;

[0061] ω i (t) is the wheel angular velocity, mm.

[0062] In formula (1), the front wheels of the vehicle are numbered 1 and 2, and the rear wheels of the vehicle are numbered 3 and 4. When the vehicle is front-wheel drive, i and j are 1 and 2; when the vehicle is rear-wheel drive or four-wheel drive, i and j are 3 and 4 respectively.

[0063] Step S130: according to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, the maximum difference rolling radius is taken out from the actual rolling radius, and the adaptation of the tire to be tested is determined based on the deviation between the maximum difference rolling radius and the preset rolling radius.

[0064] The formula for the maximum difference rolling radius is taken from the rolling radius as follows:

[0065]

[0066] Among them, v u — is the calculated reference wheel speed, km / h;

[0067] r i is the wheel rolling radius, mm;

[0068] ω i is the wheel angular velocity, mm.

[0069] It should be noted that if the front and rear tires of the vehicle have the same specifications and the same preset rolling radius, the rolling radius of the four wheels of the vehicle is substituted into formula (2) to obtain the maximum difference rolling radius. However, at present, the front and rear tires of some vehicles have different specifications. When performing tire adaptation identification on the above vehicles, only one non-reference wheel can be replaced as the tire to be tested, and the other non-reference wheel can be used as the comparison wheel. At this time, only the data of the non-reference wheel is substituted into formula (2) to obtain the maximum difference rolling radius.

[0070] Since the factors affecting whether the tire is suitable for the vehicle are not only the actual rolling radius, the difference between the linear speed of the tire and the reference wheel speed is found through integration to make the tire fitting result more accurate.

[0071] The calculation formula of radius deviation rate is as follows:

[0072]

[0073] Among them, r isw is the preset rolling radius, mm;

[0074] r imax is the maximum rolling radius, mm;

[0075] ξ is the radius deviation rate.

[0076] It should be understood that when the tire to be tested is adapted and identified, the vehicle should be kept running in a straight line as much as possible. In the straight-line state, the speed difference between the two reference wheels is small, which is conducive to obtaining a more accurate reference wheel speed to improve the accuracy of adaptation and identification.

[0077] It should be noted that when the specifications of the front and rear wheels of the vehicle are the same, the preset rolling radii of the front and rear wheels are the same; when the specifications of the front and rear wheels of the vehicle are different, the preset rolling radii of the two front wheels are the same, the preset rolling radii of the two rear wheels are the same, but the preset rolling radii of the front and rear wheels are different.

[0078] In an exemplary embodiment, determining the fitness of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius includes step S610.

[0079] Step S610: Calculate the radius deviation rate between the maximum difference rolling radius and the preset rolling radius; if the radius deviation rate is less than or equal to the preset radius deviation rate, the tire to be tested is suitable for the vehicle; if the radius deviation rate is greater than the preset radius deviation rate, the tire to be tested is not suitable for the vehicle.

[0080] It can be understood that if the front and rear tires are of the same model, the two non-reference wheels are the same model of tires to be tested, and when the tires to be tested are of the same model as the reference wheel, four maximum rolling radii can be obtained; if the front and rear tires are of the same model, the two non-reference wheels are the same model of tires to be tested, and when the tires to be tested are of different models from the reference wheel, two maximum rolling radii can be obtained.

[0081] In an exemplary embodiment, multiple maximum rolling radii are obtained in formula (2), and the radius deviation rate between the maximum rolling radius and the preset radius is less than or equal to the preset radius deviation rate, indicating that the tire to be tested is suitable for the vehicle.

[0082] It should be noted that in the traditional tire matching process, after the tire specifications are selected, the tires of the above specifications will be used as the basic components of the vehicle to calibrate the functions and performances of the upper-level controllers. After the vehicle calibrates the functions and performances, the coverable performance boundary will be obtained, and the corresponding wheel deviation range will be obtained through the above coverable performance boundary, thereby obtaining the preset radius deviation rate, that is, the preset radius deviation rate must be obtained based on the vehicle's own characteristics.

[0083] In an exemplary embodiment, after the fitness of the tire to be tested is determined, step S710 is included.

[0084] Step S710: Inform the driver of the fitness of the tire to be tested through an indicator light, a screen or a sound.

[0085] In an exemplary embodiment, the central control screen displays "qualified for adaptation" to inform the driver that the tire to be tested is adapted to the current vehicle. In another exemplary embodiment, the voice broadcast "qualified for adaptation" informs the driver that the tire to be tested is adapted to the current vehicle; in some other embodiments, the indicator light has red and green colors, and turning on the green light indicates that the tire to be tested is adapted to the current vehicle, and turning on the red light indicates that the tire to be tested is not adapted to the current vehicle.

[0086] In summary, by taking the maximum difference rolling radius from the actual rolling radius and determining the adaptability of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius, it is convenient to increase tire specifications after the calibration and development of the vehicle upper controller, without having to modify various detailed parameters of the vehicle again, thereby reducing the workload and development cost of vehicle development. At the same time, during the off-line testing of the vehicle, it is possible to determine whether the tire is adapted to avoid the occurrence of mis-installation and mixed installation of tires.

[0087] like Figure 2 As shown, the present invention provides a vehicle tire adaptation identification system, comprising:

[0088] The vehicle information acquisition module 210 is used to acquire vehicle drive type information and tire status information, and determine the reference wheel and non-reference wheel of the vehicle based on the vehicle drive type information, wherein the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is the non-reference wheel;

[0089] The data processing module 220 is used to obtain a reference wheel speed based on a reference wheel angular velocity and a preset reference wheel radius;

[0090] The picking and comparing module 230 is used to extract the maximum difference rolling radius from the actual rolling radius according to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, and determine the adaptability of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius.

[0091] The present application also provides a computer-readable storage medium, characterized in that the computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the above-mentioned vehicle tire adaptation identification method.

[0092] Another aspect of the present application also provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the vehicle tire adaptation identification method provided in each of the above embodiments.

[0093] The electronic device disclosed in this embodiment includes a processor, a memory, a transceiver and a communication interface. The memory and the communication interface are connected to the processor and the transceiver and complete communication with each other. The memory is used to store computer programs, the communication interface is used to communicate, and the processor and the transceiver are used to run the computer program so that the electronic device executes each step of the above method.

[0094] In this embodiment, the memory may include a random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0095] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a graphics processing unit (GPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0096] The above description and accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent possible changes only. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. Parts and subsamples of some embodiments may be included in or replace parts and subsamples of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the existence of a stated sub-sample, whole, step, operation, element, and / or component, but do not exclude the existence or addition of one or more other sub-samples, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method or device including the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part. It should be noted that the computer-readable medium shown in the embodiments of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to, electrical connections with one or more conductors, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In the present application, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable computer program.Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0097] The present application also provides a vehicle, including a vehicle tire adaptation identification method as described above.

[0098] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A vehicle tire adaptation identification method, characterized in that: include: Acquire vehicle drive type information and tire status information, and determine the reference wheel and non-reference wheel of the vehicle based on the vehicle drive type information, wherein the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is the non-reference wheel; Based on the reference wheel angular velocity and the preset reference wheel radius, a reference wheel rotation speed is obtained; According to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, a maximum difference rolling radius is taken out from the actual rolling radius, and based on the deviation between the maximum difference rolling radius and a preset rolling radius, the adaptation of the tire to be tested is determined.

2. The vehicle tire adaptation identification method according to claim 1, characterized in that: Determining the adaptation of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius includes: Calculating a radius deviation rate between the maximum difference rolling radius and the preset rolling radius; If the radius deviation rate is less than or equal to the preset radius deviation rate, the tire to be tested is suitable for the vehicle; If the radius deviation rate is greater than the preset radius deviation rate, the tire to be tested is not suitable for the vehicle.

3. The vehicle tire adaptation identification method according to claim 1 or 2, characterized in that: After determining the fitness of the tire to be tested, the method includes: informing the driver of the fitness of the tire to be tested through an indicator light, a screen or a sound.

4. The vehicle tire adaptation identification method according to claim 1, characterized in that: After obtaining the vehicle driving type information and the tire status information, before obtaining the reference wheel speed based on the reference wheel angular velocity and the preset reference wheel radius, the method includes: Acquiring vehicle status information, wherein the vehicle status information includes a current vehicle speed; When the current vehicle speed is greater than the preset vehicle speed value, a reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius; When the current vehicle speed is less than or equal to the preset vehicle speed value, the current vehicle speed is increased until the current vehicle speed is greater than the preset vehicle speed value.

5. The vehicle tire adaptation identification method according to claim 1 or 4, characterized in that: After obtaining the vehicle driving type information and the tire status information, before obtaining the reference wheel speed based on the reference wheel angular velocity and the preset reference wheel radius, the method includes: The tire status information includes the tire pressure of each tire; When the tire pressure of each tire is greater than a preset minimum tire pressure and less than a preset maximum tire pressure, a reference wheel speed is obtained based on the reference wheel angular velocity and the preset reference wheel radius; When the tire pressure of any tire is less than the preset minimum tire pressure, or greater than the preset maximum tire pressure, it is prompted that the tire pressure is abnormal.

6. The vehicle tire adaptation identification method according to claim 1, characterized in that: Based on the reference wheel angular velocity and the preset reference wheel radius, a reference wheel rotation speed is obtained, including: When the vehicle is front-wheel drive, the two front wheels of the vehicle are reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is the reference wheel speed; When the vehicle is rear-wheel drive or four-wheel drive, the two rear wheels of the vehicle are taken as reference wheels, and the average of the products of the two reference wheel angular velocities and the preset reference wheel radius is taken as the reference wheel speed.

7. The vehicle tire adaptation identification method according to claim 1, characterized in that: Get vehicle drive type information and tire status information, including: Acquiring vehicle status information, wherein the vehicle status information includes a vehicle braking status; When the vehicle braking state is no braking, a reference wheel speed is obtained based on the reference wheel angular velocity and a preset reference wheel radius; Among them, when the braking state of the vehicle is no braking, the anti-lock braking system, the anti-skid control system, the anti-drag control system, the advanced braking system and the vehicle dynamic control system are all in the off state.

8. A vehicle tire adaptation identification system, comprising: A vehicle information acquisition module, used to acquire vehicle drive type information and tire status information, and determine the reference wheel and non-reference wheel of the vehicle based on the vehicle drive type information, wherein the tire status information includes the reference wheel angular velocity, the non-reference wheel angular velocity and the actual rolling radius of each tire, and the tire to be tested is the non-reference wheel; A data processing module, used for obtaining a reference wheel rotation speed based on the reference wheel angular velocity and a preset reference wheel radius; The picking and comparing module is used to extract the maximum difference rolling radius from the actual rolling radius according to the actual rolling radius, the reference wheel speed, the non-reference wheel angular velocity and / or the reference wheel angular velocity, and determine the adaptability of the tire to be tested based on the deviation between the maximum difference rolling radius and the preset rolling radius.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute a vehicle tire adaptation identification method according to any one of claims 1 to 7.

10. A vehicle, characterized in that: It comprises a vehicle tire adaptation identification method as described in any one of claims 1-7.

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