Vehicle road test-free tire pressure learning method and device

Abstract

The invention discloses a vehicle road test-free tire pressure learning method and device, and relates to the technical field of automobile tire pressure, the vehicle road test-free tire pressure learning method is applied to diagnosis equipment, and comprises the following steps: connecting with a vehicle to be subjected to a road test, and collecting vehicle data; identifying whether the vehicle to be subjected to the road test needs to enter a road test mode or not; when the vehicle to be subjected to the road test needs to enter a road test mode, the vehicle data are imported into a vehicle ECU for operation, and whether the vehicle is in a static state or not is judged according to the vehicle data; and if the vehicle is in the static state, tire pressure learning is carried out. By adding the simulation road test mode, tire pressure learning can be carried out when the vehicle is in the static state, learning can be carried out without running on the road at the speed of 30 KM / h for about 20 minutes, the tire pressure learning process of the road test is omitted, manpower and material resources are saved, the tire pressure learning efficiency can be improved, and the wide market value is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile tire pressure, and in particular to a tire pressure learning method and device for vehicles without road testing. Background Art

[0002] When replacing the tire sensor, a tire pressure learning process is required in order for the vehicle ECU to overwrite the replaced tire pressure sensor ID value with the new tire pressure sensor ID value.

[0003] A common method is OBD learning (OBD refers to the On Board Diagnostic system), which is to use the device to directly overwrite the old tire pressure sensor ID value with the tire pressure sensor ID value through the OBD communication interface. However, many models still need to undergo road tests after OBD learning. Road tests mean that the vehicle must drive on the road at a speed of 30KM / h for about 20 minutes before the new tire pressure sensor ID value can replace the old tire pressure sensor ID value. This makes the learning process more troublesome, and road tests waste manpower and material resources. Obviously, this practice is not recommended at present. Summary of the invention

[0004] In order to solve the defects in the prior art, the present invention provides a tire pressure learning method and device for a vehicle without road test.

[0005] The technical document provided by the present invention:

[0006] A tire pressure learning method for a vehicle without road test is applied to a diagnostic device, and the improvement thereof includes:

[0007] Connect with the vehicle to be road tested and collect vehicle data;

[0008] Identifying whether the vehicle to be road tested needs to enter a road test mode;

[0009] When the vehicle to be road tested needs to enter a road test mode, the vehicle data is imported into the vehicle ECU for operation, and whether the vehicle is in a stationary state is determined according to the vehicle data;

[0010] If the vehicle is stationary, tire pressure learning is performed.

[0011] As an improvement of the above technical solution, the method further includes:

[0012] Command the tire pressure sensor to send vehicle data to the vehicle ECU,

[0013] Analyze the vehicle data to obtain the data format and the time interval between each frame of data;

[0014] When the vehicle ECU receives the data format and the time interval between each frame of data, the vehicle ECU operates according to the data format and the time interval between each frame of data.

[0015] As a further improvement of the above technical solution, the method further includes:

[0016] Determining whether the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor;

[0017] If the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0018] As a further improvement of the above technical solution, the method further includes:

[0019] Determine whether the interval between each frame of data run by the vehicle ECU and the interval between each frame of data obtained from the tire pressure sensor are the same;

[0020] If the interval between each frame of data run by the vehicle ECU is the same as the interval between each frame of data obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0021] As a further improvement of the above technical solution, the method further includes:

[0022] When the vehicle enters the simulated road test mode, the data format or the time interval between each frame of data is compared with the standard data format or the time interval between each frame of standard data;

[0023] If the data format is consistent with the standard data format, or the interval between each frame of data is consistent with the interval between each frame of standard data, the tire pressure sensor ID value is corrected to complete tire pressure learning.

[0024] As a further improvement of the above technical solution, the method further includes performing a simulated road test on each vehicle:

[0025] Connecting to a target vehicle and acquiring data of the target vehicle;

[0026] When the target vehicle enters the road test mode, the target vehicle data is set to standard vehicle data. When the target vehicle enters the road test mode, the target vehicle data is set to standard vehicle data, wherein the standard vehicle data includes a standard data format and a time interval between each frame of standard data;

[0027] The standard vehicle data is stored in the ECU of the target vehicle.

[0028] As a further improvement of the above technical solution, the method also includes commanding a wireless signal receiver to collect vehicle data.

[0029] The present application also proposes a tire pressure learning device for vehicles without road test, the improvement of which is that it includes:

[0030] A connection module, used to connect with the vehicle to be road tested and collect vehicle data;

[0031] An identification module, used to identify whether the vehicle to be road tested needs to enter a road test mode;

[0032] A first judgment module is used for importing the vehicle data into the vehicle ECU for operation when the vehicle to be road tested needs to enter the road test mode, and judging whether the vehicle is in a stationary state according to the vehicle data;

[0033] The learning module is used to perform tire pressure learning if the vehicle is in a stationary state.

[0034] As an improvement of the above technical solution, the device further includes:

[0035] The sending module is used to command the tire pressure sensor to send vehicle data to the vehicle ECU.

[0036] An analysis module, used for analyzing the vehicle data to obtain the data format and the time interval between each frame of data;

[0037] The operation module is used for when the vehicle ECU receives the data format and the time between each frame of data, the vehicle ECU operates according to the data format and the time between each frame of data.

[0038] As a further improvement of the above technical solution, the device further includes:

[0039] A second judgment module is used to judge whether the data format of the vehicle ECU is the same as the data format obtained from the tire pressure sensor;

[0040] The first processing module is used for, if the data format of the vehicle ECU is the same as the data format obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0041] As a further improvement of the above technical solution, the device further includes:

[0042] A third judgment module is used to judge whether the interval between each frame of data run by the vehicle ECU and the interval between each frame of data obtained from the tire pressure sensor are the same;

[0043] The second processing module is used to, if the interval between each frame of data run by the vehicle ECU is the same as the interval between each frame of data obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0044] As a further improvement of the above technical solution, the device further includes:

[0045] A comparison module, for comparing the data format or the time interval between each frame of data with the standard data format or the time interval between each frame of standard data when the vehicle enters the simulated road test mode;

[0046] The tire pressure learning module is used to correct the tire pressure sensor ID value to complete tire pressure learning if the data format is consistent with the standard data format, or the time interval between each frame of data is consistent with the time interval between each frame of standard data.

[0047] As a further improvement of the above technical solution, the device further includes a simulated road test module, which is used to perform a simulated road test on each vehicle:

[0048] A connection unit, used to connect to a target vehicle and obtain data of the target vehicle;

[0049] A standard data unit, used for setting the target vehicle data as standard vehicle data when the target vehicle enters the road test mode; wherein the standard vehicle data includes a standard data format and a time interval between each frame of standard data;

[0050] A storage unit is used to store the standard vehicle data in the ECU of the target vehicle.

[0051] As a further improvement of the above technical solution, the device also includes a collection module, and the collection module is used to command the wireless signal receiver to collect vehicle data.

[0052] The present application also discloses a computer device, which includes a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call the computer program, so that the computer device executes the steps of a tire pressure learning method for a vehicle without a road test as described above.

[0053] The present application also discloses a computer-readable storage medium, comprising instructions. When the instructions are executed on a computer device, the computer device executes the steps of the tire pressure learning method for a vehicle without road test as described above.

[0054] The present application also discloses a computer program product, which includes computer instructions. When the computer instructions are run on a computer device, the computer device executes the steps of the tire pressure learning method for a vehicle without a road test as described above.

[0055] Beneficial effect: By adding a simulated road test mode, the present application can perform tire pressure learning when the vehicle is at a standstill. There is no need to drive on the road at a speed of 30KM / h for about 20 minutes to learn. The tire pressure learning process of the road test is eliminated, which not only saves manpower and material resources, but also improves the efficiency of tire pressure learning, and has broad market value. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0057] Figure 2 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0058] Figure 3 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0059] Figure 4 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0060] Figure 5 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0061] Figure 6 A schematic flow chart of a tire pressure learning method for vehicles without road testing according to the present invention;

[0062] Figure 7 A structural schematic diagram of a tire pressure learning device for vehicles without road tests according to the present invention;

[0063] Figure 8 A structural schematic diagram of a tire pressure learning device for vehicles without road tests according to the present invention;

[0064] Fig. 9 It is a schematic diagram of the computer device structure of the present invention.

[0065] 1000. Connection module, 1001. Identification module, 1002. First judgment module, 1003. Learning module, 1004. Sending module, 1005. Analysis module, 1006. Operation module, 1007. Second judgment module, 1008. First processing module, 1009. Third judgment module, 1010. Second processing module, 1011. Comparison module, 1012. Tire pressure learning module, 1013. Collection module, 1014. Simulation road test module.

[0066] 100141. connection unit, 10142. standard data unit, 10143. storage unit. DETAILED DESCRIPTION

[0067] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are provided in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0068] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "fixed", "integrally formed", "left", "right" and similar expressions used in this specification are for illustrative purposes only. In the drawings, units with similar structures are marked with the same reference numerals.

[0069] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0070] ECU is the abbreviation of Electronic Control Unit, which is translated into Chinese as "tire pressure sensor". ECU is an electronic control system widely used in modern cars. It is one of the core components of automotive electronic control systems. It is usually installed at the bottom of the vehicle or in the engine area and connected to multiple sensors and actuators. It is responsible for monitoring the operation of various aspects of the vehicle, such as engine speed, oxygen concentration, vehicle speed, braking system, anti-theft system, etc. When ECU detects a problem or a specific preset condition, it will send a signal to the vehicle system according to the pre-set parameters to adjust or control the operation of the engine and vehicle. The main functions are to optimize engine performance, improve fuel economy, reduce exhaust emissions and protect the safety of the vehicle and the driver.

[0071] At present, some models need to be road tested after learning before the tire pressure can be displayed on the instrument. The vehicle is tested on the road at a speed of 30KM / h for about 20 minutes. The reason why the road test allows the vehicle to learn is that when the vehicle is driving, the tire pressure sensor will send the vehicle driving data at a certain interval through wireless transmission. When the vehicle receives the data, the ECU will parse the data content. If the data format and the time interval between each frame of data are consistent with the settings, then the ECU will continuously correct the tire pressure sensor ID value.

[0072] However, the present application can directly perform tire pressure learning without a road test to correct the sensor ID value. The present invention is described in detail below with reference to the accompanying drawings.

[0073] Embodiment 1:

[0074] See also Figure 1 The present application discloses a tire pressure learning method for a vehicle without road test, which is applied to a diagnostic device, including:

[0075] S1: Connect with the vehicle to be road tested and collect vehicle data;

[0076] S2: Identify whether the vehicle to be road tested needs to enter a road test mode;

[0077] S3: When the vehicle to be road tested needs to enter a road test mode, the vehicle data is imported into the vehicle ECU for operation, and whether the vehicle is in a stationary state is determined according to the vehicle data;

[0078] S4: If the vehicle is stationary, perform tire pressure learning.

[0079] In the above embodiment, for steps S1-S4, after the present application is connected to the vehicle, it collects vehicle data and then identifies whether the vehicle needs to undergo a road test, that is, whether the tire pressure sensor has been replaced. If it has been replaced, the tire pressure needs to be relearned to replace the ID value of the old tire pressure sensor. When the vehicle to be road tested needs to enter the road test mode, the vehicle data is imported into the vehicle ECU for operation, and it is determined whether the vehicle is in a stationary state based on the vehicle data. If the vehicle is in a stationary state, tire pressure learning is performed. If the present application detects that the vehicle needs to enter the road test mode, tire pressure learning can be performed when the vehicle is in a stationary state, without the need to drive on the road at a speed of 30KM / h for about 20 minutes to learn. The present application eliminates the tire pressure learning process for road tests, which not only saves manpower and material resources, but also improves the efficiency of tire pressure learning, and has broad market value.

[0080] See also Figure 2 , the method further comprises:

[0081] S5: command the tire pressure sensor to send vehicle data to the vehicle ECU,

[0082] S6: Analyze the vehicle data to obtain the data format and the time interval between each frame of data;

[0083] S7: When the vehicle ECU receives the data format and the time interval between each frame of data, the vehicle ECU operates according to the data format and the time interval between each frame of data.

[0084] In the above embodiment, for steps S5-S7, after connecting with the vehicle to be road tested, in order to perform tire pressure learning without a road test, it is necessary to obtain vehicle data and analyze the vehicle data to obtain the data format and the time interval between each frame of data, and command the new tire pressure sensor to send the data format and the time interval between each frame of data to the vehicle ECU. When the vehicle ECU receives the data format and the time interval between each frame of data, the vehicle ECU operates according to the data format and the time interval between each frame of data. The present application obtains vehicle data and uses the vehicle ECU to operate according to the vehicle data. The purpose of doing this is to simulate the road test process, so there is no need to drive on the road to perform tire pressure learning.

[0085] In order to detect the data format obtained from the tire pressure sensor and the interval between each frame of data, whether the vehicle ECU has received and entered the simulated road test mode, it is also necessary to determine whether the vehicle ECU has run the vehicle data as planned. Therefore, please refer to Figure 3 , the method further comprises:

[0086] S8: Determine whether the data format of the vehicle ECU is the same as the data format obtained from the tire pressure sensor;

[0087] S9: If the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0088] Similarly, see Figure 4 , the method further comprises:

[0089] S10: Determine whether the interval between each frame of data run by the vehicle ECU and the interval between each frame of data obtained from the tire pressure sensor are the same;

[0090] S11: If the interval between each frame of data run by the vehicle ECU is the same as the interval between each frame of data obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

[0091] In the above embodiment, for steps S8-S11, when the vehicle is driving, the tire pressure sensor will send the vehicle driving data at a certain interval by wireless transmission. When the vehicle receives the vehicle data, the ECU will parse the data content, obtain the data format and the time interval between each frame of data, and determine whether the vehicle ECU has run the vehicle data according to the plan. In other words, if it is determined that the data format and the time interval between each frame of data are consistent with the settings, that is, the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor, and the time interval between each frame of data run by the vehicle ECU is the same as the time interval between each frame of data obtained from the tire pressure sensor, then the vehicle to be road tested enters the simulated road test mode, and the ECU will continuously perform the tire pressure learning process until the learning process is completed. If the present application detects that the vehicle needs to enter the road test mode, the tire pressure learning can be performed when the vehicle is stationary, and there is no need to drive on the road at a speed of 30KM / h for about 20 minutes to learn.

[0092] See also Figure 5 , the method further comprises:

[0093] S12: when the vehicle enters the simulated road test mode, the data format or the time interval between each frame of data is compared with the standard data format or the time interval between each frame of standard data;

[0094] S13: If the data format is consistent with the standard data format, or the interval between each frame of data is consistent with the interval between each frame of standard data, the tire pressure sensor ID value is corrected to complete tire pressure learning.

[0095] In the above embodiment, for steps S12-S13, when the vehicle is driving, the tire pressure sensor will send the vehicle driving data at a certain interval by wireless transmission. When the vehicle receives the data, the ECU will parse the data content. If the data format and the interval between each frame of data are consistent with the setting, then the ECU will continuously correct the tire pressure sensor ID value until a new tire pressure sensor ID value is generated. This application performs tire pressure learning when the vehicle is stationary, eliminating the tire pressure learning process of the road test, which not only saves manpower and material resources, but also improves the efficiency of tire pressure learning, and has a wide market value.

[0096] See also Figure 6 The method further includes conducting a simulated road test on each vehicle so that verification can be performed when tire pressure learning is performed, and the steps are as follows:

[0097] S14: Connecting with the target vehicle to obtain the target vehicle data;

[0098] S15: When the target vehicle enters the road test mode, the target vehicle data is set as standard vehicle data, wherein the standard vehicle data includes a standard data format and a time interval between each frame of standard data;

[0099] S16: Storing the standard vehicle data in the ECU of the target vehicle.

[0100] In the above embodiment, before tire pressure learning, the present application can connect with multiple target vehicles to obtain the target vehicle data; when the target vehicle enters the road test mode, the target vehicle data is set to standard vehicle data, wherein the standard vehicle data includes a standard data format and the time interval between each frame of standard data; the standard vehicle data is stored in the ECU of the target vehicle. The present application collects data from vehicles that have not undergone road tests to collect standard vehicle data, provides data comparison for subsequent vehicles to perform simulated road test modes, and provides a more rigorous design scheme that eliminates road tests in order to complete the tire pressure learning process.

[0101] The method also includes instructing a wireless signal receiver to collect vehicle data, using the wireless signal receiver to collect data sent during a road test of a vehicle model that needs a road test, wherein the collected content includes data format and data time interval.

[0102] Embodiment 2:

[0103] See also Figure 7 The present application discloses a tire pressure learning device for vehicles without road test, comprising:

[0104] A connection module 1000 is used to connect with a vehicle to be road tested and collect vehicle data;

[0105] An identification module 1001 is used to identify whether the vehicle to be road tested needs to enter a road test mode;

[0106] The first judgment module 1002 is used for importing the vehicle data into the vehicle ECU for operation when the vehicle to be road tested needs to enter the road test mode, and judging whether the vehicle is in a stationary state according to the vehicle data;

[0107] The learning module 1003 is used to perform tire pressure learning if the vehicle is in a stationary state.

[0108] After the connection module 1000 is connected to the vehicle, it collects vehicle data, and the identification module 1001 then identifies whether the vehicle needs to undergo a road test, that is, whether the tire pressure sensor has been replaced. If it has been replaced, the tire pressure needs to be re-learned to replace the ID value of the old tire pressure sensor. When the vehicle to be road tested needs to enter the road test mode, the vehicle data is imported into the vehicle ECU for operation, and the first judgment module 1002 determines whether the vehicle is in a stationary state based on the vehicle data. If the vehicle is in a stationary state, the learning module 1003 performs tire pressure learning. If the present application detects that the vehicle needs to undergo a road test mode, tire pressure learning can be performed when the vehicle is in a stationary state, without the need to drive on the road at a speed of 30KM / h for about 20 minutes to learn. The present application eliminates the tire pressure learning process for road tests, which not only saves manpower and material resources, but also improves the efficiency of tire pressure learning, and has broad market value.

[0109] The sending module 1004 is used to instruct the tire pressure sensor to send vehicle data to the vehicle ECU.

[0110] An analysis module 1005 is used to analyze the vehicle data to obtain the data format and the time interval between each frame of data;

[0111] An operation module 1006, configured to operate the vehicle ECU according to the data format and the time interval between each frame of data when the vehicle ECU receives the data format and the time interval between each frame of data;

[0112] The second judgment module 1007 is used to judge whether the data format of the vehicle ECU is the same as the data format obtained from the tire pressure sensor;

[0113] The first processing module 1008 is configured to, if the data format of the vehicle ECU is the same as the data format obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode;

[0114] The third judgment module 1009 is used to judge whether the interval between each frame of data run by the vehicle ECU and the interval between each frame of data obtained from the tire pressure sensor are the same;

[0115] The second processing module 1010 is used for, if the interval between each frame of data run by the vehicle ECU is the same as the interval between each frame of data obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode;

[0116] A comparison module 1011 is used to compare the data format or the time interval between each frame of data with the standard data format or the time interval between each frame of standard data when the vehicle enters the simulated road test mode;

[0117] The tire pressure learning module 1012 is used to correct the tire pressure sensor ID value to complete tire pressure learning if the data format is consistent with the standard data format, or the time interval between each frame of data is consistent with the time interval between each frame of standard data.

[0118] The collection module 1013 is used to instruct the wireless signal receiver to collect vehicle data.

[0119] The device further includes a simulated road test module 1014, and the simulated road test module 1014 is used to perform a simulated road test on each vehicle.

[0120] See also Figure 8 , the simulated road test includes:

[0121] A connection unit 10141 is used to connect to a target vehicle and obtain data of the target vehicle;

[0122] A standard data unit 10142, used for setting the target vehicle data as standard vehicle data when the target vehicle enters the road test mode. When the target vehicle enters the road test mode, the target vehicle data is set as standard vehicle data, wherein the standard vehicle data includes a standard data format and a time interval between each frame of standard data;

[0123] The storage unit 10143 is used to store the standard vehicle data in the ECU of the target vehicle.

[0124] Embodiment three:

[0125] See also Fig. 9 The present application also discloses a computer device, which includes a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to call the computer program so that the computer device executes the steps of a tire pressure learning method for a vehicle without a road test as described above.

[0126] The present application also discloses a computer-readable storage medium, comprising instructions. When the instructions are executed on a computer device, the computer device executes the steps of the tire pressure learning method for a vehicle without road test as described above.

[0127] The present application also discloses a computer program product, which includes computer instructions. When the computer instructions are run on a computer device, the computer device executes the steps of the tire pressure learning method for a vehicle without a road test as described above.

[0128] In the embodiments provided in the present application, it should be understood that the disclosed equipment, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, and units with the same function may be combined into one unit. For example, multiple units or components may be combined or integrated into another diagnostic system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, or may be electrical, mechanical or other forms of connection.

[0129] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0130] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0131] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only processor (ROM, Read-Only Memory), disk or CD-ROM and other media that can store program codes.

[0132] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the present invention; and, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A tire pressure learning method for a vehicle without road test, applied to a diagnostic device, characterized in that: include: Connect with the vehicle to be road tested and collect vehicle data; Identifying whether the vehicle to be road tested needs to enter a road test mode; When the vehicle to be road tested needs to enter a road test mode, the vehicle data is imported into the vehicle ECU for operation, and whether the vehicle is in a stationary state is determined according to the vehicle data; If the vehicle is stationary, tire pressure learning is performed.

2. A tire pressure learning method for vehicles without road test according to claim 1, characterized in that: The method further comprises: Command the tire pressure sensor to send vehicle data to the vehicle ECU, Analyze the vehicle data to obtain the data format and the time interval between each frame of data; When the vehicle ECU receives the data format and the time interval between each frame of data, the vehicle ECU operates according to the data format and the time interval between each frame of data.

3. A tire pressure learning method for vehicles without road test according to claim 2, characterized in that: The method further comprises: Determining whether the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor; If the data format run by the vehicle ECU is the same as the data format obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

4. The tire pressure learning method for vehicles without road test according to claim 2, characterized in that: The method further comprises: Determine whether the interval between each frame of data run by the vehicle ECU and the interval between each frame of data obtained from the tire pressure sensor are the same; If the interval between each frame of data run by the vehicle ECU is the same as the interval between each frame of data obtained from the tire pressure sensor, the vehicle to be road tested enters a simulated road test mode.

5. A tire pressure learning method for vehicles without road test according to any one of claims 3 or 4, characterized in that: The method further comprises: When the vehicle enters the simulated road test mode, the data format or the time interval between each frame of data is compared with the standard data format or the time interval between each frame of standard data; If the data format is consistent with the standard data format, or the interval between each frame of data is consistent with the interval between each frame of standard data, the tire pressure sensor ID value is corrected to complete tire pressure learning.

6. The tire pressure learning method for vehicles without road test according to claim 1, characterized in that: The method further includes conducting a simulated road test on each vehicle: Connecting to a target vehicle and acquiring data of the target vehicle; When the target vehicle enters the road test mode, the target vehicle data is set to standard vehicle data. When the target vehicle enters the road test mode, the target vehicle data is set to standard vehicle data, wherein the standard vehicle data includes a standard data format and a time interval between each frame of standard data; The standard vehicle data is stored in the ECU of the target vehicle.

7. The tire pressure learning method for vehicles without road test according to claim 1, characterized in that: The method also includes commanding a wireless signal receiver to collect vehicle data.

8. A computer device comprising a memory and a processor, wherein: The memory is used to store a computer program, and the processor is used to call the computer program, characterized in that the computer device executes the steps of a tire pressure learning method for a vehicle exempted from a road test according to any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, characterized in that: When the instructions are executed on a computer device, the computer device executes the steps of a tire pressure learning method for a vehicle exempted from a road test according to any one of claims 1 to 7.

10. A computer program product, characterized in that The computer program product includes computer instructions, and when the computer instructions are run on a computer device, the computer device executes the steps of a tire pressure learning method for a vehicle without a road test according to any one of claims 1 to 7.

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