Vehicle speed pulse correction method and device, vehicle, electronic equipment and storage medium

Abstract

The invention provides a vehicle speed pulse correction method and device, a vehicle, electronic equipment and a storage medium, the method comprises the steps that initial information and user customized information of the vehicle are obtained, the initial information comprises an initial speed ratio and initial tire parameters, and the user customized information comprises a target speed ratio and / or target tire parameters; the initial speed ratio and / or the initial tire parameters are / is changed according to the user customized information, and a standard pulse number configured in a vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number; the method can flexibly meet the individual requirements of different users on the vehicle, can provide corresponding solutions whether the tire size needs to be adjusted or the speed ratio needs to be adjusted, and ensures the accuracy of the vehicle speed calculated by the vehicle instrument, thereby greatly simplifying the development process, reducing the instrument variety, reducing the management difficulty and saving the development cost.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a vehicle speed pulse correction method, device, vehicle, electronic equipment and storage medium. Background Art

[0002] Vehicle speed plays a vital role in helping drivers understand the status of their vehicles. There are two main ways to calculate vehicle speed: one is to calculate vehicle speed based on ABS wheel speed, and the other is to calculate vehicle speed based on transmission shaft speed. However, when the wheels are turning, due to the difference in wheel speed, the vehicle speed calculation based on ABS wheel speed is often not accurate enough. Therefore, the more commonly used method is to calculate vehicle speed based on transmission shaft speed.

[0003] For heavy-duty vehicles, there is a high demand for customization. Some customers prefer large-size tires, while others require a large speed ratio, which results in different mileage for the vehicle when the drive shaft rotates the same number of times. In order to meet such diverse needs, it is often necessary to develop automotive instruments of various specifications to calculate vehicle speed and accumulated mileage, which not only slows down the development cycle and increases the length of the development cycle, but also leads to a wide variety of instruments, making management difficult. Summary of the invention

[0004] In view of the shortcomings of the prior art mentioned above, the present application provides a vehicle speed pulse correction method, device, vehicle, electronic device and storage medium to solve the technical problems that in order to meet the diverse customization needs of customers, it is often necessary to develop automobile instruments of various specifications, resulting in a slow development cycle, a wide variety of instruments and inconvenient management.

[0005] The present application provides a vehicle speed pulse correction method, the method comprising: obtaining initial information and user-customized information of a vehicle, wherein the initial information includes an initial speed ratio and initial tire parameters, and the user-customized information includes a target speed ratio and / or a target tire parameter; changing the initial speed ratio and / or the initial tire parameters according to the user-customized information to obtain a changed speed ratio and a changed tire parameter of the vehicle; and correcting a standard pulse number configured in a vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameter, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

[0006] In one embodiment of the present application, the standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, including: obtaining the number of pulse teeth of the vehicle; calculating the corrected standard pulse number according to the number of pulse teeth of the vehicle, the changed speed ratio and the changed tire diameter, wherein the changed tire parameters include the changed tire diameter; and changing the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0007] In one embodiment of the present application, the standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, including: pre-establishing a relationship table between the speed ratio, tire diameter and standard pulse number; matching the changed speed ratio and the changed tire diameter with the relationship table to obtain a standard pulse number corresponding to the changed speed ratio and the changed tire diameter as the corrected standard pulse number, wherein the changed tire parameters include the changed tire diameter; and changing the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0008] In one embodiment of the present application, a relationship table between speed ratio, tire diameter and standard pulse number is established in advance, including: obtaining different speed ratios, different tire diameters and the number of pulse teeth of the vehicle; determining a standard pulse number according to a speed ratio, a tire diameter and the number of pulse teeth as the standard pulse number corresponding to the speed ratio and the tire diameter, so as to obtain a standard pulse number corresponding to each speed ratio and each tire diameter; generating the relationship table based on all speed ratios, all tire diameters and the standard pulse number corresponding to each speed ratio and each tire diameter.

[0009] In one embodiment of the present application, the standard pulse number configured in the vehicle instrument is changed to the corrected standard pulse number, including: communicating and verifying with the vehicle instrument through a diagnostic instrument; after the verification is passed, generating a modification instruction including the corrected standard pulse number and sending it to the vehicle instrument, so that the vehicle instrument changes the configured standard pulse number to the corrected standard pulse number, so as to calculate the vehicle speed based on the corrected standard pulse number.

[0010] In one embodiment of the present application, the initial speed ratio and / or the initial tire parameters are changed according to the user customized information, including at least one of the following: if the user customized information only includes the target speed ratio, the target speed ratio is used as the changed speed ratio, and the initial tire parameters are used as the changed tire parameters; if the user customized information only includes the target tire parameters, the initial speed ratio is used as the changed speed ratio, and the target tire parameters are used as the changed tire parameters; if the user customized information includes the target speed ratio and the target tire parameters, the target speed ratio is used as the changed speed ratio, and the target tire parameters are used as the changed tire parameters.

[0011] In one embodiment of the present application, a vehicle speed pulse correction device is also provided, the device comprising: a data acquisition module, used to obtain initial information and user-customized information of the vehicle, wherein the initial information includes an initial speed ratio and initial tire parameters, and the user-customized information includes a target speed ratio and / or target tire parameters; an information processing module, used to change the initial speed ratio and / or the initial tire parameters according to the user-customized information to obtain the changed speed ratio and changed tire parameters of the vehicle; and to correct the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

[0012] In one embodiment of the present application, a vehicle is further provided, comprising: a vehicle instrument; and the vehicle speed pulse correction device as described above.

[0013] In one embodiment of the present application, an electronic device is also provided, which includes: one or more processors; a storage device for storing one or more programs, and when the one or more programs are executed by the one or more processors, the electronic device implements the vehicle speed pulse correction method as described above.

[0014] In one embodiment of the present application, a computer-readable storage medium is further provided, on which a computer program is stored. When the computer program is executed by a processor of a computer, the computer executes the vehicle speed pulse correction method as described above.

[0015] Beneficial effects of the present invention: The present invention provides a vehicle speed pulse correction method, device, vehicle, electronic device and storage medium. The method changes vehicle parameters by acquiring user customized information, and corrects the standard pulse number configured in the vehicle instrument according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number. It can flexibly respond to the personalized needs of different users for vehicle performance, whether it is necessary to adjust the tire size or the speed ratio, it can provide corresponding solutions, and can ensure the accuracy of the vehicle instrument in calculating the vehicle speed, thereby greatly simplifying the development process, reducing the variety of instruments, reducing the difficulty of management, and saving development costs. The method is suitable for vehicles with different customized needs, making vehicle customization more convenient and improving customer satisfaction.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of an implementation environment of a vehicle speed pulse correction method shown in an exemplary embodiment of the present application;

[0018] Figure 2 is a flow chart of a vehicle speed pulse correction method shown in an exemplary embodiment of the present application;

[0019] Figure 3 is a schematic diagram of the connection between a vehicle instrument and a vehicle speed sensor shown in a specific embodiment of the present application;

[0020] Figure 4 is a schematic diagram of the interaction between the diagnostic instrument and the vehicle instrument according to a specific embodiment of the present application;

[0021] Figure 5 is a block diagram of a vehicle speed pulse correction device shown in an exemplary embodiment of the present application;

[0022] Figure 6 It is a structural schematic diagram of an electronic device shown in an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application 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 application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0024] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0025] It should be noted that in this application, "first", "second", etc. are only used to distinguish similar objects, and are not used to limit the order or precedence of similar objects. The variations of "including", "having", etc. described above indicate that the scope covered by the subject of the word is not exclusive except for the examples shown by the word.

[0026] It is understood that the various numbers, step numbers, and other reference numerals recorded in this application are distinguished for the convenience of description and are not intended to limit the scope of this application. The size of the reference numerals in this application does not mean the order of execution. The execution order of each process should be determined by its function and internal logic.

[0027] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present application. However, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present application difficult to understand.

[0028] It should be noted that in order to meet customers' diverse customization needs for vehicles, it is often necessary to use an external pulse integrator or develop multiple types of instruments to solve the problem of inaccurate vehicle speed calculation caused by different speed ratios and tire sizes. Among them, the external pulse integrator will increase the cost of use and the vehicle wiring harness circuit, and the development of multiple types of instruments will not only slow down the development cycle and increase the length of the development cycle, but also lead to a wide variety of instruments and inconvenient management.

[0029] To solve these problems, the embodiments of the present application respectively propose a vehicle speed pulse correction method, a vehicle speed pulse correction device, a vehicle, an electronic device, a computer-readable storage medium and a computer program product, which will be described in detail below.

[0030] See also Figure 1 , Figure 1 It is a schematic diagram of an implementation environment of a vehicle speed pulse correction method shown as an exemplary embodiment of the present application.

[0031] like Figure 1As shown, the implementation environment may include a terminal 110 and a computer device 120, wherein the terminal 110 is used to provide the initial information and user customized information of the vehicle. The terminal 110 may include a vehicle terminal and a user mobile terminal, or may be a computer terminal of a 4S store or a car company, which is not limited here. The computer device 120 may be at least one of a microcomputer, an embedded computer, a neural network computer, etc. The computer device 120 may be configured in a vehicle, or the computer device 120 may be an independent computer device, which is not limited here. The terminal 110 may be used to send the initial information and user customized information of the vehicle to the computer device 120. Of course, the initial information and user customized information of the vehicle may also be input into the computer device 120 by the staff, which is not limited here. The computer device 120 may be used to perform vehicle speed pulse correction so that the vehicle instrument of the vehicle can calculate the vehicle speed based on the corrected standard pulse number.

[0032] Schematically, the computer device 120 obtains the initial information and user-customized information of the vehicle, wherein the initial information includes the initial speed ratio and the initial tire parameters, and the user-customized information includes the target speed ratio and / or the target tire parameters; the initial speed ratio and / or the initial tire parameters are changed according to the user-customized information to obtain the changed speed ratio and the changed tire parameters of the vehicle; the standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number. It can be seen that the technical solution of the embodiment of the present application can flexibly respond to the personalized needs of different users for vehicle performance, whether it is necessary to adjust the tire size or the speed ratio, it can provide a corresponding solution, and can ensure the accuracy of the vehicle instrument in calculating the vehicle speed, thereby greatly simplifying the development process, reducing the variety of instruments, reducing the difficulty of management, saving development costs and use costs, and reducing the wiring harness loop of the vehicle. This solution is suitable for vehicles with different customization requirements, making vehicle customization more convenient and improving customer satisfaction.

[0033] It should be noted that the vehicle speed pulse correction method provided in the embodiment of the present application can be specifically executed by the computer device 120 , and accordingly, the vehicle speed pulse correction device can be set in the computer device 120 .

[0034] See also Figure 2 , Figure 2 is a flow chart of a vehicle speed pulse correction method shown in an exemplary embodiment of the present application. The vehicle speed pulse correction method can be applied to Figure 1The implementation environment shown in FIG. 1 is specifically implemented by the computer device 120 in the implementation environment. It should be understood that the vehicle speed pulse correction method can also be applied to other exemplary implementation environments and be specifically implemented by devices in other implementation environments. This embodiment does not limit the implementation environment to which the vehicle speed pulse correction method is applicable. Figure 2 As shown, in an exemplary embodiment, the vehicle speed pulse correction method at least includes steps S210 to S230, which are described in detail as follows:

[0035] Step S210, obtaining the initial information and user customized information of the vehicle.

[0036] In one embodiment of the present application, the initial information includes an initial speed ratio and initial tire parameters, and the user customized information includes a target speed ratio and / or target tire parameters. The initial speed ratio and initial tire parameters refer to the speed ratio and tire parameters of the vehicle before this customization, wherein the tire parameters may include at least one of the tire radius, tire diameter, and tire circumference. Schematically, the initial speed ratio and initial tire parameters of the vehicle can be queried through the product design drawings, and of course, the initial speed ratio and initial tire parameters of the vehicle can also be pre-stored on the vehicle side. The target speed ratio and target tire parameters refer to the speed ratio and tire parameters required by the user or the user wants to customize. If the user only needs to change the speed ratio, the corresponding user customized information only includes the target speed ratio. If the user only needs to change the tire size, the corresponding user customized information only includes the target tire parameters. If the user needs to change the speed ratio and tire size at the same time, the corresponding user customized information includes both the target speed ratio and the target tire parameters.

[0037] In a specific embodiment of the present application, a user can customize a vehicle speed ratio and / or vehicle tire parameters at a 4S store or a car manufacturer. The 4S store or car manufacturer can query the initial speed ratio and initial tire parameters of the vehicle through the product design drawings or the vehicle end as the initial information of the vehicle, and determine the target speed ratio and / or target tire parameters according to user needs as the user customized information of the vehicle, and then input the initial information and user customized information of the vehicle into a computer device for processing.

[0038] Step S220, changing the initial speed ratio and / or initial tire parameters according to the user customized information to obtain a changed speed ratio and changed tire parameters of the vehicle.

[0039] In one embodiment of the present application, step S220 includes at least one of the following:

[0040] If the user customized information only includes the target speed ratio, the target speed ratio is used as the changed speed ratio, and the initial tire parameters are used as the changed tire parameters;

[0041] If the user customized information only includes the target tire parameters, the initial speed ratio is used as the changed speed ratio, and the target tire parameters are used as the changed tire parameters;

[0042] If the user customized information includes a target speed ratio and a target tire parameter, the target speed ratio is used as the changed speed ratio, and the target tire parameter is used as the changed tire parameter.

[0043] In this embodiment, the changed speed ratio represents the speed ratio of the customized vehicle, and the changed tire parameters represent the speed ratio of the customized vehicle. The changed speed ratio may be different from or the same as the initial speed ratio, depending on whether the user needs to change the vehicle speed ratio, that is, whether the user customized information includes the target speed ratio. Similarly, the changed tire parameters may be different from or the same as the initial tire parameters, depending on whether the user needs to change the vehicle tire size, that is, whether the user customized information includes the target tire parameters.

[0044] Step S230, correcting the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

[0045] In one embodiment of the present application, the vehicle instrument may be a speedometer, or a speedometer and odometer integrated with a speedometer and an odometer, which is not limited here. The number of pulses generated when the vehicle travels a preset mileage per unit time at a preset speed may be used as the standard number of pulses, wherein the preset speed may be 60 km / h, the unit time may be 1 min, and the preset mileage may be 1 km, that is, the number of pulses generated when the vehicle travels 1 km in 1 min at a speed of 60 km / h may be used as the standard number of pulses. Of course, the preset speed, unit time, and preset mileage may also be other values, which are not limited here.

[0046] The vehicle instrument can be pre-configured with the standard pulse number corresponding to the vehicle before customization, so that the vehicle instrument can calculate the vehicle speed based on the configured standard pulse number. Figure 3 , Figure 3 FIG. 1 is a schematic diagram showing the connection between a vehicle meter and a vehicle speed sensor according to a specific embodiment of the present application. Figure 3 As shown, the vehicle instrument ( Figure 3 The vehicle speed sensor is connected to the vehicle speed sensor, wherein the vehicle speed sensor is a Hall type, which is used to collect the pulse frequency of the vehicle and send it to the vehicle instrument, and the vehicle instrument is used to calculate the vehicle speed according to the standard pulse number and the pulse frequency collected by the vehicle speed sensor. There are many ways to calculate the vehicle speed, which are not limited here.

[0047] Indicatively, we can pre-select any vehicle (usually a basic vehicle for development and design) and calculate or measure on a drum the number of pulses (pulses / km) generated by the vehicle running 1km in 1min at 60km / h as the standard pulse number, assuming that the standard pulse number generated by the vehicle is M. The tire diameter, speed ratio, and standard pulse number of the vehicle are used as reference values, and the speedometer and other vehicle instruments are designed based on these reference values. When the frequency is (M / 60) Hz, the instrument display value is 60km / h. When the vehicle is replaced with other types of wheels or speed ratios, calculate the number of pulses P (pulses / km) generated by the vehicle running 1km in 1min at 60km / h under this configuration. Assuming that the displayed speed of the vehicle instrument at any time is V (km / h), and the pulse frequency collected by the speed sensor at any time is δ (Hz), the following formula can be obtained:

[0048]

[0049] Wherein, V is the vehicle speed, δ is the pulse frequency, M is the standard pulse number (specifically the standard pulse number before the tire size and / or speed ratio is changed), and P is the standard pulse number (specifically the standard pulse number after the tire size and / or speed ratio is changed).

[0050] After simplifying formula (1), we can get the calculation method of vehicle speed:

[0051] V = δ × 3600 / P (2)

[0052] Among them, V is the vehicle speed, δ is the pulse frequency, and P is the standard pulse number.

[0053] Since the standard pulse number corresponding to the vehicle will also change after the vehicle speed ratio and / or tire parameters change, it is necessary to correct the standard pulse number configured in the vehicle instrument. Before the standard pulse number is changed, the vehicle instrument calculates the vehicle speed based on the pre-configured standard pulse number and the pulse frequency collected by the vehicle speed sensor, and through formula (2). Before the standard pulse number is changed, the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number and the pulse frequency collected by the vehicle speed sensor, and through formula (2), thereby ensuring the accuracy of the vehicle speed calculation after customization, avoiding external pulse integrators, reducing vehicle wiring harness loops, and reducing instrument variety development, development costs and management difficulties.

[0054] After the vehicle instrument calculates the vehicle speed, it can send it to the entire vehicle via the CAN line in the form of 1939 protocol for use by other vehicle systems.

[0055] In one embodiment of the present application, the standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, including: obtaining the number of pulse teeth of the vehicle; calculating the corrected standard pulse number according to the number of pulse teeth of the vehicle, the changed speed ratio and the changed tire diameter, wherein the changed tire parameters include the changed tire diameter; and changing the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0056] In this embodiment, the number of pulse teeth of the vehicle can be obtained by querying the product design drawings of the vehicle. The standard pulse number is calculated as follows:

[0057] P=1000 / (π×D)×speed ratio×number of pulse teeth Formula (3)

[0058] Among them, P is the standard pulse number, π is the pi, and D is the tire diameter.

[0059] Of course, other calculation methods may also be used to calculate the standard pulse number, which is not limited here.

[0060] Substituting the number of pulse teeth, the changed speed ratio and the changed tire diameter into formula (3), the corrected standard pulse number can be obtained, so as to change the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0061] In another embodiment of the present application, the standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameters, including: pre-establishing a relationship table between the speed ratio, tire diameter and standard pulse number; matching the changed speed ratio and the changed tire diameter with the relationship table to obtain a standard pulse number corresponding to the changed speed ratio and the changed tire diameter as the corrected standard pulse number, wherein the changed tire parameters include the changed tire diameter; and changing the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0062] In this embodiment, different speed ratios and different tire diameters adapted to the vehicle can be obtained in advance, and the speed ratios and tire diameters are combined in pairs, each group includes a speed ratio and a tire diameter, and the standard pulse numbers corresponding to each group are obtained by experiment or calculation, and a relationship table between the standard pulse number, the speed ratio, and the tire diameter is established. Please refer to Table 1, which is a relationship table between the speed ratio, the tire diameter, and the standard pulse number shown in a specific embodiment of the present application. As shown in Table 1, the relationship table includes multiple speed ratios and multiple tire diameters, wherein each speed ratio and each tire diameter are combined in pairs, and each group corresponds to a standard pulse number. After obtaining the changed speed ratio and the changed tire diameter, the standard pulse number corresponding to the changed speed ratio and the changed tire diameter can be matched from the relationship table according to the changed speed ratio and the changed tire diameter, as the corrected standard pulse number, so as to change the standard pulse number configured in the vehicle instrument to the corrected standard pulse number.

[0063] Table 1

[0064]

[0065]

[0066] In one embodiment of the present application, a relationship table between speed ratios, tire diameters and standard pulse numbers is pre-established, including: obtaining different speed ratios, different tire diameters and the number of pulse teeth of the vehicle; determining a standard pulse number according to a speed ratio, a tire diameter and the number of pulse teeth as the standard pulse number corresponding to both the speed ratio and the tire diameter, so as to obtain a standard pulse number corresponding to each speed ratio and each tire diameter; generating a relationship table based on all speed ratios, all tire diameters and the standard pulse numbers corresponding to each speed ratio and each tire diameter.

[0067] In this embodiment, different speed ratios and different tire diameters can be obtained through data provided by the corresponding manufacturers, and the number of pulse teeth of the vehicle can be obtained by querying the product design drawings of the vehicle. Each speed ratio and each tire diameter is combined in pairs, and each group includes a speed ratio and a tire diameter. Based on the number of pulse teeth and the speed ratio and tire diameter of each group, the standard number of pulses corresponding to the group can be calculated by formula (3), or the number of pulses generated by the vehicle traveling 1 km in 1 minute under the condition of a vehicle speed of 60 km / h is measured on a drum as the standard number of pulses corresponding to the group. By analogy, the standard number of pulses corresponding to each group is obtained, so as to create a relationship table between the speed ratio, tire diameter and standard number of pulses based on the speed ratio and tire diameter of each group and the standard number of pulses of each group.

[0068] In one embodiment of the present application, after the computer device obtains the corrected standard pulse number by calculation or querying the relationship table, if the computer device is configured in a vehicle, the corrected standard pulse number can be sent to the vehicle instrument through the in-vehicle local area network such as CAN and LIN. If the computer device is independent of the vehicle, the corrected standard pulse number can be sent to the vehicle instrument through wireless, wired or intermediate media, so that the vehicle instrument changes the configured standard pulse number to the corrected standard pulse number.

[0069] In one embodiment of the present application, the standard pulse number configured in the vehicle instrument is changed to a corrected standard pulse number, including: communicating and verifying with the vehicle instrument through a diagnostic instrument; after the verification is passed, generating a modification instruction including the corrected standard pulse number and sending it to the vehicle instrument, so that the vehicle instrument changes the configured standard pulse number to the corrected standard pulse number, so as to calculate the vehicle speed based on the corrected standard pulse number.

[0070] In this embodiment, the computer device is independently arranged outside the vehicle, for example, the computer device is a computer, server or other device of a 4S store or a car manufacturer, and the computer device is connected to the diagnostic instrument of the 4S store or the car manufacturer. After determining the corrected standard pulse number, the computer device can send the corrected standard pulse number to the diagnostic instrument, so as to exchange data with the vehicle instrument through the diagnostic instrument, and complete the change of the standard pulse number configured in the vehicle instrument. Figure 4 , Figure 4 FIG. 1 is a schematic diagram showing the interaction between the diagnostic instrument and the vehicle instrument according to a specific embodiment of the present application. Figure 4 As shown, the communication rules between the diagnostic instrument and the vehicle instrument can be implemented according to the ISO14229 protocol. The physical layer can use the CAN line. The baud rate is determined by the OEM. The commonly used baud rates are 500kb and 250kb. The interaction process is as follows:

[0071] First, the diagnostic instrument ( Figure 4 18DA17F0 is the ID address of the diagnostic instrument) to the vehicle instrument ( Figure 4 The vehicle instrument (hereinafter referred to as the instrument, 18DA F017 is the ID address of the instrument) requests a communication connection. After the vehicle instrument responds to the connection, the diagnostic instrument requests a session from the vehicle instrument. After the vehicle instrument agrees to the session, the session creation is completed. Then, the diagnostic instrument requests the vehicle instrument for a secret key for verification. After the vehicle instrument returns the secret key, the diagnostic instrument sends the calculated value of the secret key to the vehicle instrument. The vehicle instrument returns that the secret key is correct to prompt that the verification is successful. Finally, the diagnostic instrument sends a modification instruction containing the corrected standard pulse number to the vehicle instrument so that the vehicle instrument changes the configured standard pulse number. The vehicle instrument returns a change completion message to prompt that the change is successful.

[0072] See also Figure 5 , Figure 5is a block diagram of a vehicle speed pulse correction device shown in an exemplary embodiment of the present application. The device can be applied to Figure 1 The implementation environment shown in FIG. 1 is specifically configured in the computer device 120. The device may also be applicable to other exemplary implementation environments and specifically configured in other devices. This embodiment does not limit the implementation environment to which the device is applicable. Figure 5 As shown, the exemplary vehicle speed pulse correction device includes: a data acquisition module 510, used to obtain initial information and user-customized information of the vehicle, wherein the initial information includes an initial speed ratio and initial tire parameters, and the user-customized information includes a target speed ratio and / or target tire parameters; an information processing module 520, used to change the initial speed ratio and / or initial tire parameters according to the user-customized information to obtain a changed speed ratio and changed tire parameters of the vehicle; and to correct the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

[0073] In one embodiment of the present application, the data acquisition module 510 can be the vehicle side, the user side, or the computer terminal of a 4S store or a car manufacturer, or other hardware devices that collect vehicle-side data and user-side data; the information processing module 520 can be an MCU (Microcontroller Unit), ECU (Electronic Control Unit), etc. configured in the vehicle, or it can be a computer device independent of the vehicle, or it can be a server configured in the cloud.

[0074] It should be noted that the vehicle speed pulse correction device provided in the above embodiment and the vehicle speed pulse correction method provided in the above embodiment belong to the same concept, wherein the specific manner in which each module and unit performs the operation has been described in detail in the method embodiment, and will not be repeated here. In actual application, the vehicle speed pulse correction device provided in the above embodiment can distribute the above functions to different functional modules as needed, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above, and this is not limited here.

[0075] This embodiment also provides a vehicle, including: a vehicle instrument; and the vehicle speed pulse correction device provided in the above embodiments.

[0076] This embodiment also provides an electronic device, including: one or more processors; a storage device for storing one or more programs, when the one or more programs are executed by the one or more processors, the electronic device implements the vehicle speed pulse correction method provided in the above-mentioned embodiments.

[0077] See also Figure 6 , Figure 6 is a structural diagram of an electronic device shown in an exemplary embodiment of the present application. It should be noted that: Figure 6 The electronic device 600 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0078] like Figure 6 As shown, the electronic device 600 includes a processor 601, a memory 602 and a communication bus 603; the communication bus 603 is used to connect the processor 601 and the memory 602; the processor 601 is used to execute the computer program stored in the memory 602 to implement one or more methods in the above embodiments.

[0079] This embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor of a computer, the computer executes the vehicle speed pulse correction method as described above. The computer-readable storage medium may be included in the electronic device described in the above embodiment, or may exist independently without being assembled into the electronic device.

[0080] This embodiment also provides a computer program product or a computer program, which includes a computer instruction stored in a computer-readable storage medium. A processor of a computer device reads the computer instruction from the computer-readable storage medium, and the processor executes the computer instruction, so that the computer device executes the vehicle speed pulse correction method provided in each of the above embodiments.

[0081] The electronic device provided 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.

[0082] 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.

[0083] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), 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 gate or transistor logic devices, discrete hardware components.

[0084] The computer-readable storage medium in this embodiment can be understood by ordinary technicians in this field: all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to the computer program. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, the execution includes the steps of the above-mentioned method embodiments; and the aforementioned storage medium includes: ROM (read-only memory), RAM (random access memory), magnetic disk or optical disk and other media that can store program codes.

[0085] The above embodiments are merely illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A vehicle speed pulse correction method, characterized in that: The method comprises: Acquiring initial information and user-customized information of the vehicle, wherein the initial information includes an initial speed ratio and initial tire parameters, and the user-customized information includes a target speed ratio and / or a target tire parameter; Changing the initial speed ratio and / or the initial tire parameters according to the user customized information to obtain a changed speed ratio and changed tire parameters of the vehicle; The standard pulse number configured in the vehicle instrument of the vehicle is corrected according to the changed speed ratio and the changed tire parameter, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

2. The vehicle speed pulse correction method according to claim 1, characterized in that: The method further comprises: modifying the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameter, including: Obtaining the number of pulse teeth of the vehicle; Calculating the corrected standard pulse number according to the pulse tooth number of the vehicle, the changed speed ratio and the changed tire diameter, wherein the changed tire parameters include the changed tire diameter; The standard pulse number configured in the vehicle meter is changed to the corrected standard pulse number.

3. The vehicle speed pulse correction method according to claim 1, characterized in that: The method further comprises: modifying the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameter, including: Establish in advance the relationship table between the speed ratio, tire diameter and standard pulse number; Matching the changed speed ratio and the changed tire diameter with the relationship table to obtain a standard pulse number corresponding to the changed speed ratio and the changed tire diameter as the corrected standard pulse number, wherein the changed tire parameters include the changed tire diameter; The standard pulse number configured in the vehicle meter is changed to the corrected standard pulse number.

4. The vehicle speed pulse correction method according to claim 3, characterized in that: A relationship table between speed ratio, tire diameter and standard pulse number is established in advance, including: Obtaining different speed ratios, different tire diameters, and pulse tooth numbers of the vehicle; According to a speed ratio, a tire diameter and the number of pulse teeth, a standard pulse number is determined as the standard pulse number corresponding to the speed ratio and the tire diameter, so as to obtain a standard pulse number corresponding to each speed ratio and each tire diameter; The relationship table is generated based on all speed ratios, all tire diameters, and the standard number of pulses corresponding to each speed ratio and each tire diameter.

5. The vehicle speed pulse correction method according to any one of claims 2 to 4, characterized in that: Changing the standard pulse number configured in the vehicle instrument to the corrected standard pulse number includes: communicating and verifying with the vehicle instrument via a diagnostic instrument; After the verification is passed, a modification instruction including the modified standard pulse number is generated and sent to the vehicle meter, so that the vehicle meter changes the configured standard pulse number to the modified standard pulse number, so as to calculate the vehicle speed based on the modified standard pulse number.

6. The vehicle speed pulse correction method according to any one of claims 1 to 4, characterized in that: Changing the initial speed ratio and / or the initial tire parameters according to the user customized information includes at least one of the following: If the user customized information only includes the target speed ratio, the target speed ratio is used as the changed speed ratio, and the initial tire parameters are used as the changed tire parameters; If the user customized information only includes the target tire parameters, the initial speed ratio is used as the changed speed ratio, and the target tire parameters are used as the changed tire parameters; If the user customized information includes the target speed ratio and the target tire parameter, the target speed ratio is used as the changed speed ratio, and the target tire parameter is used as the changed tire parameter.

7. A vehicle speed pulse correction device, characterized in that: The device comprises: A data acquisition module, used to obtain initial information and user-customized information of the vehicle, wherein the initial information includes an initial speed ratio and initial tire parameters, and the user-customized information includes a target speed ratio and / or a target tire parameter; An information processing module is used to change the initial speed ratio and / or the initial tire parameters according to the user customized information to obtain the changed speed ratio and the changed tire parameters of the vehicle; and to correct the standard pulse number configured in the vehicle instrument of the vehicle according to the changed speed ratio and the changed tire parameters, so that the vehicle instrument calculates the vehicle speed based on the corrected standard pulse number.

8. A vehicle, characterized in that: The vehicle comprises: Vehicle instruments; The vehicle speed pulse correction device as claimed in claim 7.

9. An electronic device, characterized in that: The electronic device comprises: one or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, enables the electronic device to implement the vehicle speed pulse correction method as described in any one of claims 1-6.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor of a computer, the computer is caused to execute the vehicle speed pulse correction method as described in any one of claims 1-6.

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