Method, device, equipment and storage medium for adjusting gear position

Abstract

The present application discloses a method, device, equipment and storage medium for adjusting the gear position. First, the first gear position is shifted to the first in-gear position by engaging the gear. Then, when the first gear position deviates from the first in-gear position, the transmission is subjected to a speed ratio check to obtain a check result. Finally, when the check result is that the check result passes, the offset of the first gear position and the first in-gear position are adjusted to the second in-gear position, and the second in-gear position is saved. When the first gear position deviates from the first in-gear position, the transmission is subjected to a speed ratio check. When the check result passes, it indicates that the first gear position is still in the preset gear position. The offset position and the first in-gear position are adjusted to the second in-gear position, thereby increasing the coverage of the preset gear position range, reducing the error caused by gear offset due to wear, reducing the idle time, and thus improving the power of the vehicle.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method, device, equipment and storage medium for adjusting a gear position. Background Art

[0002] With the rapid development of vehicle control technology, automatic transmissions have gradually replaced mechanical manual transmissions, realizing automation in the gear shifting process and bringing a more comfortable experience to the driver. However, during the driving of the car, deviations or wear during use may cause changes in the gear shift displacement.

[0003] Currently, due to machining deviations or wear during use, the gear selection and shifting displacement can change. During driving, the automatic mechanical transmission (AMT) actuator will produce gear position drift when the solenoid valve is not open. This causes a corresponding change in the displacement sensor signal, and the actual gear is judged as neutral. The gear must be re-engaged to enter the required gear, thus affecting the vehicle's power. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a gear position adjustment method, device, equipment and storage medium, aiming to improve the power of a car.

[0005] In a first aspect, an embodiment of the present application provides a method for adjusting a gear position, the method comprising:

[0006] By shifting gears, the first gear position is shifted to the first in-gear position;

[0007] When the first gear position deviates from the first in-gear position, performing a speed ratio calibration on the transmission to obtain a calibration result;

[0008] When the verification result is a passing result, the offset position of the first gear position and the first in-gear position are adjusted to a second in-gear position, and the second in-gear position is saved.

[0009] Optionally, when the first gear position deviates from the first in-gear position, performing a speed ratio calibration on the transmission to obtain a calibration result includes:

[0010] When the first gear position deviates from the first in-gear position, a speed ratio calibration is performed on the transmission according to the input shaft speed, the output shaft speed and the current gear ratio to obtain the calibration result.

[0011] Optionally, the method further includes:

[0012] When the verification result is a failure, the vehicle is re-engaged in the preset gear.

[0013] Optionally, when the verification result is a passed verification result, adjusting the offset position of the first gear position and the first in-gear position to a second in-gear position, and saving the second in-gear position, the method further includes:

[0014] It is determined according to the second in-gear position whether the second gear position is in the preset gear position.

[0015] Optionally, the second in-gear position is stored in an electrically erasable programmable read-only memory (EEPROM), and the second in-gear position is not cleared after the EEPROM is powered off.

[0016] In a second aspect, an embodiment of the present application provides a device for adjusting a gear position, the device comprising:

[0017] A gear shifting module, configured to shift the first gear position to a first in-gear position by shifting gears;

[0018] a verification module, configured to verify the speed ratio of the transmission and obtain a verification result when the first gear position deviates from the first in-gear position;

[0019] An adjustment module is configured to adjust the offset position of the first gear position and the first in-gear position to a second in-gear position when the verification result is a passed verification result, and to save the second in-gear position.

[0020] Optionally, the verification module includes:

[0021] The verification unit is used to verify the speed ratio of the transmission according to the input shaft speed, the output shaft speed and the current gear ratio when the first gear position deviates from the first in-gear position to obtain a verification result.

[0022] Optionally, the device further comprises:

[0023] The gear shifting unit is used to re-engage the preset gear when the verification result is a failure.

[0024] Optionally, the device further comprises:

[0025] A judging unit is used to judge whether the second gear position is in the preset gear position according to the second in-gear position.

[0026] Optionally, the second in-gear position is stored in an electrically erasable programmable read-only memory (EEPROM), and the second in-gear position is not cleared after the EEPROM is powered off.

[0027] In a third aspect, an embodiment of the present application provides a device for adjusting a gear position, the device comprising:

[0028] memory for storing computer programs;

[0029] A processor is used to execute the computer program so that the device performs the in-gear position adjustment method described in the first aspect.

[0030] In a fourth aspect, an embodiment of the present application provides a computer storage medium, wherein a computer program is stored on the computer-readable storage medium. When the computer program is executed, the device executing the computer program implements the in-gear position adjustment method described in the first aspect.

[0031] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0032] The embodiments of the present application provide a method, device, equipment and storage medium for adjusting the gear position. First, the first gear position is shifted to the first in-gear position by engaging the gear. Then, when the first gear position deviates from the first in-gear position, the speed ratio of the transmission is checked to obtain a check result. Finally, when the check result is that the check result passes, the offset of the first gear position and the first in-gear position are adjusted to the second in-gear position, and the second in-gear position is saved. When the first gear position deviates from the first in-gear position, the speed ratio of the transmission is checked. When the check result passes, it indicates that the first gear position is still in the preset gear position. The offset position and the first in-gear position are adjusted to the second in-gear position, thereby increasing the coverage of the preset gear position range, reducing the error caused by gear offset due to wear, reducing the idle time, and thus improving the power of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of a system framework involved in an application scenario in an embodiment of the present application;

[0035] Figure 2 A flow chart of a method for adjusting a gear position provided in an embodiment of the present application;

[0036] Figure 3 A schematic diagram of a structure in a blocking position provided by an embodiment of the present application;

[0037] Figure 4 A schematic structural diagram of a gear position adjustment device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to help those skilled in the art better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0039] Currently, due to machining deviations or wear during use, the gear selection and shifting displacement can change. During driving, the automatic mechanical transmission (AMT) actuator will produce gear position drift when the solenoid valve is not open. This causes a corresponding change in the displacement sensor signal, and the actual gear is judged as neutral. The gear must be re-engaged to enter the required gear, thus affecting the vehicle's power.

[0040] Based on this, in order to solve the above problems, in an embodiment of the present application, first, the first gear position is shifted to the first in-gear position by shifting gears. Then, when the first gear position deviates from the first in-gear position, the transmission is subjected to a speed ratio check to obtain a check result. Finally, when the check result is that the check result passes, the offset of the first gear position and the first in-gear position are adjusted to the second in-gear position, and the second in-gear position is saved. When the first gear position deviates from the first in-gear position, the transmission is subjected to a speed ratio check. When the check result passes, it indicates that the first gear position is still in the preset gear position. The offset position and the first in-gear position are adjusted to the second in-gear position, thereby increasing the coverage of the preset gear position range, reducing the error impact caused by gear offset due to wear, reducing the idle time, and thus improving the power of the vehicle.

[0041] For example, one of the scenarios of the embodiment of the present application may be applied to Figure 1 In the scenario shown, the scenario includes an automatic manual transmission (AMT) actuator 101 and an electrically erasable programmable read-only memory (EEPROM) 102. When the AMT actuator 101 deviates from a first gear position to a first in-gear position, a speed ratio check is performed on the transmission to obtain a check result. If the check result indicates a pass, the offset amount of the first gear position and the first in-gear position are adjusted to a second in-gear position, and the second in-gear position is stored. The second in-gear position is also stored in the EEPROM 102.

[0042] First, in the above application scenario, although the action description of the implementation method provided in the embodiment of the present application is executed by the AMT actuator 101; however, the embodiment of the present application is not limited in terms of the execution subject, as long as the actions disclosed in the implementation method provided in the embodiment of the present application are executed.

[0043] Secondly, the above scenario is only an example scenario provided by the embodiment of the present application, and the embodiment of the present application is not limited to this scenario.

[0044] The specific implementation of the gear position adjustment method and device in the embodiments of the present application will be described in detail below with reference to the accompanying drawings through embodiments.

[0045] Figure 2 A flow chart of a method for adjusting the gear position provided in an embodiment of the present application. Figure 2 As shown, the in-gear position adjustment method provided in the embodiment of the present application may include:

[0046] S201: Shift the first gear position to the first in-gear position by shifting gears.

[0047] The first in-gear position can be the in-gear band of 1st gear, the in-gear band of 2nd gear, the in-gear band of 3rd gear, the in-gear band of 4th gear, the in-gear band of 5th gear or the in-gear band of reverse gear, wherein the in-gear band refers to the position range corresponding to the gear position, and the corresponding gear position can be engaged by controlling the shift solenoid valve, and the in-gear position can be identified by the corresponding displacement sensor, and the first gear position is engaged to the first in-gear position, indicating that the first gear position is at the preset gear position at this time. As an example, combined with Figure 3 As shown, Figure 3 This is a schematic diagram of the gear position structure. The x-axis direction is the gear selection direction, which can be controlled by the gear selection solenoid valve. The y-axis direction is the gear shift direction, and the corresponding gear can be engaged through the combined action of the gear selection and shifting solenoid valves. Each gear has a corresponding gear position. The x-axis gear selection limit positions are 5mm, 32mm and the middle position 22mm. The y-axis gear shift limit positions are 8mm, 28mm and the middle position 18mm. Figure 3 The shaded position in the figure represents the in-gear band of the corresponding gear, that is, the in-gear position of the corresponding gear, gear 1 is in gear position 31, gear 2 is in gear position 32, gear 3 is in gear position 33, gear 4 is in gear position 34, gear 5 is in gear position 35, neutral 0 is in gear position 36, neutral 1 is in gear position 37, neutral 2 is in gear position 38 and R gear is in gear position 39. By recording these in-gear positions, the relevant control parameters can be updated and the in-gear band of the corresponding gear, that is, the in-gear position of the corresponding gear, can be set.

[0048] S202: When the first gear position deviates from the first in-gear position, a speed ratio calibration is performed on the transmission to obtain a calibration result.

[0049] Due to factors such as machining deviations and wear during use, the AMT actuator may experience gear position drift while driving when the solenoid valve is not activated by the software. When the first gear position deviates from the first in-gear position, the transmission is subjected to a speed ratio check based on the input shaft speed, output shaft speed, and current gear ratio to obtain a check result. When the first gear position deviates from the first in-gear position, it is not directly determined to be neutral. Instead, the transmission is first subjected to a speed ratio check based on the equation: input shaft speed = output shaft speed * current gear ratio. This prevents errors caused by incorrect gear display that could cause the AMT actuator to determine the current gear as neutral, thereby affecting the vehicle's power.

[0050] The AMT actuator can be driven by electric, pneumatic, hydraulic, or hybrid methods. Electric actuators use small electric motors as the actuator, pneumatic actuators use air pipes, and hydraulic actuators use oil cylinders. Hybrid actuators use all of the above in the same AMT actuator system. The present application does not specifically limit the AMT actuator drive method and does not affect the implementation of the present application. The transmission can be an AMT transmission. An AMT transmission maintains the basic structure of a mechanical manual transmission but adds an automatic control mechanism with an electronic unit to automate the shifting process. The present application does not specifically limit the transmission and does not affect the implementation of the present application.

[0051] S203: When the verification result is passed, the offset position of the first gear position and the first in-gear position are adjusted to a second in-gear position, and the second in-gear position is saved.

[0052] The verification results include a pass and a fail. If the verification result is a pass, the offset of the first gear position and the first in-gear position are adjusted to a second in-gear position, and the second in-gear position is saved. If the verification result is a fail, the preset gear is re-engaged. When the first gear position is offset, an offset is generated. If the transmission speed ratio verification passes, it indicates that the current vehicle speed meets the requirements of the preset gear. The AMT actuator maintains the current preset gear, adjusts the offset of the first gear position to the lower limit of the first in-gear position range, adjusts the offset of the first gear position and the first in-gear position to a new in-gear position, i.e., the second in-gear position, and saves the second in-gear position in an electrically erasable programmable read-only memory (EEPROM). The second in-gear position is not cleared after the EEPROM is powered off. The second in-gear position is used as a criterion for determining whether the current gear position is in the preset gear position during the next gear shift or selection. Whether the second gear position is in the preset gear position can be determined based on the second in-gear position.

[0053] The above is a method for adjusting the gear position provided in an embodiment of the present application. First, the first gear position is shifted to the first gear position by shifting gear. Then, when the first gear position deviates from the first gear position, the speed ratio of the transmission is checked to obtain a check result. Finally, when the check result is that the check result passes, the offset of the first gear position and the first gear position are adjusted to the second gear position, and the second gear position is saved. When the first gear position deviates from the first gear position, the speed ratio of the transmission is checked. When the check result passes, it indicates that the first gear position is still in the preset gear position. The offset position and the first gear position are adjusted to the second gear position, which increases the coverage of the preset gear position range, reduces the error caused by gear offset due to wear, reduces the idle time, and thus improves the power of the car.

[0054] The above are some specific implementations of the gear position adjustment method provided in the embodiments of the present application. Based on this, the present application also provides a corresponding device. The device provided in the embodiments of the present application will be introduced from the perspective of functional modularization.

[0055] See also Figure 4 , this figure is a structural schematic diagram of a gear position adjustment device 400 provided in an embodiment of the present application, and the device 400 includes a gear shift module 401, a verification module 402 and an adjustment module 403.

[0056] The gear shifting module 401 is used to shift the first gear position to the first in-gear position by shifting gears;

[0057] A verification module 402 is configured to verify the speed ratio of the transmission when the first gear position deviates from the first in-gear position and obtain a verification result;

[0058] The adjustment module 403 is configured to adjust the offset position of the first gear position and the first in-gear position to a second in-gear position when the verification result is a passed verification result, and save the second in-gear position.

[0059] In the embodiment of the present application, through the cooperation of the gear shifting module 401, the verification module 402 and the adjustment module 403, when the first gear position deviates from the first in-gear position, the speed ratio of the transmission is verified. When the verification result passes, it indicates that the first gear position is still in the preset gear position, and the offset position and the first in-gear position are adjusted to the second in-gear position, thereby increasing the coverage of the preset gear position range, reducing the error impact caused by gear offset due to wear, reducing the idle time, and thus improving the power of the vehicle.

[0060] As an implementation, the verification module 402 includes:

[0061] The verification unit is used to verify the speed ratio of the transmission according to the input shaft speed, the output shaft speed and the current gear ratio when the first gear position deviates from the first in-gear position to obtain a verification result.

[0062] As an embodiment, the gear position adjustment device 400 further includes:

[0063] The gear shifting unit is used to re-engage the preset gear when the verification result is failure.

[0064] As an embodiment, the gear position adjustment device 400 further includes:

[0065] The judging unit is used to judge whether the second gear position is in a preset gear position according to the second in-gear position.

[0066] As an embodiment, the second in-gear position is stored in an electrically erasable programmable read-only memory (EEPROM), and the second in-gear position is not cleared after the EEPROM is powered off.

[0067] The embodiments of the present application also provide corresponding devices and computer storage media for implementing the solutions provided by the embodiments of the present application.

[0068] The device includes a memory and a processor, the memory is used to store a computer program, and the processor is used to execute the computer program, so that the device executes the in-gear position adjustment method described in any embodiment of the present application.

[0069] The computer storage medium stores a computer program. When the code is executed, the device running the computer program implements the in-gear position adjustment method described in any embodiment of the present application.

[0070] The "first" and "second" (if any) in the names mentioned in the embodiments of this application are only used as name identifiers and do not mean the first or second in order.

[0071] Through the description of the above embodiments, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above embodiment methods can be implemented by means of software plus a general hardware platform. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment or certain parts of the embodiments of the present application.

[0072] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the relevant parts, refer to the partial description of the method embodiment. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0073] The above description is merely an exemplary embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A method for adjusting the gear position, characterized in that: The method comprises: By shifting gears, the first gear position is shifted to the first in-gear position; When the first gear position deviates from the first in-gear position, performing a speed ratio calibration on the transmission to obtain a calibration result; When the verification result is a passing verification result, adjusting the offset position of the first gear position and the first in-gear position to a second in-gear position, and saving the second in-gear position; The adjusting the offset position of the first gear position and the first in-gear position to the second in-gear position and saving the second in-gear position includes adjusting the offset of the first gear position to the lower limit of the first in-gear position range, adjusting the offset of the first gear position and the first in-gear position to a new in-gear position as the second in-gear position, the second in-gear position being stored in an electrically erasable programmable read-only memory (EEPROM), the second in-gear position not being cleared after the EEPROM is powered off, and the second in-gear position being used as a condition for determining whether the current gear position is in the preset gear position when shifting or selecting gears next time.

2. The method according to claim 1, characterized in that When the first gear position deviates from the first in-gear position, performing a speed ratio calibration on the transmission to obtain a calibration result includes: When the first gear position deviates from the first in-gear position, a speed ratio calibration is performed on the transmission according to the input shaft speed, the output shaft speed and the current gear ratio to obtain the calibration result.

3. The method according to claim 1, characterized in that The method further comprises: When the verification result is a failure, the vehicle is re-engaged in the preset gear.

4. The method according to claim 3, characterized in that When the verification result is a passing verification result, adjusting the offset position of the first gear position and the first in-gear position to a second in-gear position, and saving the second in-gear position, the method further includes: It is determined according to the second in-gear position whether the second gear position is in the preset gear position.

5. A gear position adjustment device for implementing the method according to any one of claims 1 to 4, characterized in that: The device comprises: A gear shifting module, configured to shift the first gear position to a first in-gear position by shifting gears; a verification module, configured to verify the speed ratio of the transmission and obtain a verification result when the first gear position deviates from the first in-gear position; An adjustment module is configured to adjust the offset position of the first gear position and the first in-gear position to a second in-gear position when the verification result is a passed verification result, and to save the second in-gear position.

6. The device according to claim 5, characterized in that The verification module includes: The verification unit is used to verify the speed ratio of the transmission according to the input shaft speed, the output shaft speed and the current gear ratio when the first gear position deviates from the first in-gear position to obtain a verification result.

7. The device according to claim 5, characterized in that The device further comprises: The gear shifting unit is used to re-engage the preset gear when the verification result is a failure.

8. A gear position adjustment device, characterized in that: The device comprises: Memory for storing computer programs; A processor, configured to implement the steps of the in-gear position adjustment method according to any one of claims 1 to 4 when executing the computer program.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the gear position adjustment method according to any one of claims 1 to 4 are implemented.

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