Method and apparatus for determining lubricating state of drive axle of vehicle, and storage medium

Abstract

A method and apparatus for determining the lubricating state of a drive axle of a vehicle, and a storage medium. The method comprises: determining a driving working condition under test of a vehicle (S102); on the basis of the driving working condition under test, adjusting the pitch angle of a drive axle of the vehicle to a first target value, adjusting the roll angle of the drive axle of the vehicle to a second target value, and adjusting the rotating speed of a driving motor of the vehicle to a third target value (S104), wherein the driving motor is used for driving the drive axle, and the driven drive axle works under the driving working condition under test; acquiring a degree-of-lubricating score of the drive axle of the vehicle under the driving working condition under test (S106), wherein the degree-of-lubricating score is used for indicating the lubricating state of the drive axle of the vehicle; and in response to the degree-of-lubricating score being greater than a degree-of-lubricating threshold, determining that the lubricating state of the drive axle of the vehicle meets a lubricating condition (S108). According to the method, the pitching working condition and the roll working condition are comprehensively considered, thereby achieving the technical effect of improving the accuracy of determining the lubricating state of a drive axle of a vehicle.

Description

Method, device and storage medium for determining lubrication status of vehicle drive axle

[0001] Cross-reference

[0002] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on July 24, 2023, with application number 2023109118741 and invention name “Method, device and storage medium for determining the lubrication state of a vehicle's drive axle”, the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the field of vehicles, and in particular, to a method, device, and storage medium for determining the lubrication status of a drive axle of a vehicle. Background Art

[0004] The drive axle is a mechanism at the end of the transmission that changes the transmission's speed and torque and transmits them to the drive wheels. It typically consists of a final drive unit, differential, wheel drive system, and drive axle housing. The final drive unit is used to reduce the speed and increase the torque of the transmission's power, redirecting it to ensure sufficient driving force and a suitable speed for the vehicle. The quality of its lubrication directly impacts the lifespan, reliability, and efficiency of the drive axle. Therefore, a lubrication bench test is necessary to assess whether the lubrication conditions of rotating components such as bearings and gears within the vehicle's drive axle assembly meet product design requirements under actual vehicle operating conditions.

[0005] At present, the drive axle lubrication bench test only considers the lubrication status of the drive axle assembly under different pitch conditions in the input shaft direction, but does not consider whether the roll condition has an impact on the lubrication status of the vehicle's drive axle. As a result, there is a problem of low accuracy in determining the lubrication status of the vehicle's drive axle.

[0006] Currently, no effective solution has been proposed to the above-mentioned problem of low accuracy in determining the lubrication status of a vehicle's drive axle.

[0007] Summary of the Invention

[0008] Embodiments of the present disclosure provide a method, apparatus, and storage medium for determining the lubrication status of a vehicle's drive axle, to at least address the technical problem of low accuracy in determining the lubrication status of the vehicle's drive axle.

[0009] According to one aspect of an embodiment of the present disclosure, a method for determining the lubrication status of a vehicle's drive axle is provided. The method may include: determining a driving condition of the vehicle to be tested; based on the driving condition to be tested, adjusting the pitch angle of the vehicle's drive axle to a first target value, adjusting the roll angle of the vehicle's drive axle to a second target value, and adjusting the speed of the vehicle's drive motor to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle operates under the driving condition to be tested; obtaining a lubricity score of the vehicle's drive axle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication status of the vehicle's drive axle; and, in response to the lubricity score being greater than a lubricity threshold, determining that the lubrication status of the vehicle's drive axle meets a lubrication condition.

[0010] Optionally, when the lubrication state of the vehicle's drive axle meets the lubrication conditions, the method further includes: in response to the driving condition to be tested being a non-first test condition, determining the current amount of lubricating oil in the vehicle's drive axle as the target amount of lubricating oil in the vehicle's drive axle; or, in response to the driving condition to be tested being the first test condition, reducing the current amount of lubricating oil in the vehicle's drive axle to a first target amount of oil according to a set threshold; testing the lubrication state of the vehicle's drive axle under the driving condition to be tested when the amount of lubricating oil in the vehicle's drive axle is at the first target amount of oil; and determining the target amount of lubricating oil in the vehicle's drive axle based on the lubrication state.

[0011] Optionally, determining a target lubricating oil quantity of the vehicle's drive axle based on the lubrication state includes: in response to the lubricating oil quantity in the vehicle's drive axle being at a first target oil quantity, the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition, and determining the first target oil quantity as the target lubricating oil quantity of the vehicle's drive axle.

[0012] Optionally, determining a target lubricating oil quantity of a vehicle's drive axle based on a lubrication state further includes: in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested not meeting the lubrication condition when the lubricating oil quantity in the vehicle's drive axle is at a first target oil quantity, increasing the lubricating oil quantity in the vehicle's drive axle from a first target oil quantity to a second target oil quantity according to a set threshold; testing the lubrication state of the vehicle's drive axle under the driving condition to be tested when the lubricating oil quantity in the vehicle's drive axle is at the second target oil quantity; and determining the target lubricating oil quantity of the vehicle's drive axle based on the lubrication state of the vehicle's drive axle under the driving condition to be tested.

[0013] Optionally, based on the lubrication state of the vehicle's drive axle under the driving condition to be tested, determining a target lubricating oil quantity of the vehicle's drive axle includes: in response to the lubricating oil quantity in the vehicle's drive axle being at a second target oil quantity, the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition, determining the second target oil quantity as the target lubricating oil quantity of the vehicle's drive axle; or, in response to the lubricating oil quantity in the vehicle's drive axle being at the second target oil quantity, when the lubrication state of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication condition, determining the second target oil quantity as the first target oil quantity, and continuing to execute the steps of increasing the lubricating oil quantity in the vehicle's drive axle from the first target oil quantity to the second target oil quantity according to a set threshold, and testing the lubrication state of the vehicle's drive axle under the driving condition to be tested when the lubricating oil quantity in the vehicle's drive axle is at the second target oil quantity, until the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition; and determining the lubricating oil quantity corresponding to the lubrication state of the vehicle's drive axle under the driving condition to be tested meeting the lubrication condition as the target lubricating oil quantity of the vehicle's drive axle.

[0014] Optionally, in response to the lubricity score being not greater than the lubricity threshold, the method further includes: determining an initial amount of lubricating oil in the drive axle of the vehicle; increasing the amount of lubricating oil in the drive axle of the vehicle from the initial amount of lubricating oil to a third target amount of oil according to a set threshold; and determining whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication conditions when the amount of lubricating oil in the drive axle of the vehicle is at the third target amount of oil.

[0015] Optionally, the method also includes: in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested meeting the lubrication condition, determining whether the driving condition to be tested is the first test condition; in response to the driving condition to be tested being the first test condition, determining the third target oil quantity as the target lubricating oil quantity of the vehicle's drive axle.

[0016] Optionally, the method also includes: in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested not meeting the lubrication condition, determining a third target oil quantity as the initial lubricating oil quantity; continuing to increase the initial lubricating oil quantity in the vehicle's drive axle to the third target oil quantity according to the set threshold, and determining whether the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition when the lubricating oil quantity in the vehicle's drive axle is at the third target oil quantity, until the lubrication state of the vehicle's drive axle meets the lubrication condition.

[0017] Optionally, the pitch angle of the drive axle of the vehicle is used to indicate the angle between the drive axle and the horizontal plane, and the roll angle of the drive axle of the vehicle is used to indicate the inclination angle of the drive axle relative to the horizontal plane.

[0018] Optionally, under the driving condition to be tested, the pitch angle of the vehicle's drive axle is adjusted according to a first gradient, the roll angle of the vehicle's drive axle is adjusted according to a second gradient, and the speed of the vehicle's drive motor is adjusted according to a third gradient.

[0019] According to another aspect of the embodiment of the present disclosure, a device for determining the lubrication state of a vehicle's drive axle is also provided. The device may include: a first determining component configured to determine a driving condition to be tested for the vehicle; an adjusting component configured to adjust the pitch angle of the vehicle's drive axle to a first target value, adjust the roll angle of the vehicle's drive axle to a second target value, and adjust the speed of the vehicle's drive motor to a third target value based on the driving condition to be tested, wherein the drive motor is used to drive the drive axle, and the driven drive axle operates under the driving condition to be tested; an acquiring component configured to acquire a lubricity score of the vehicle's drive axle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication state of the vehicle's drive axle; and a second determining component configured to determine that the lubrication state of the vehicle's drive axle meets the lubrication condition in response to the lubricity score being greater than a lubricity threshold.

[0020] According to another aspect of the embodiments of the present disclosure, a vehicle is provided, which is used to execute the method for determining the lubrication state of a drive axle of the vehicle according to the embodiments of the present disclosure.

[0021] According to another aspect of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium includes a stored program, wherein when the program is executed, the device containing the computer-readable storage medium is controlled to execute the method for determining the lubrication status of a vehicle drive axle according to the present disclosure.

[0022] According to another aspect of an embodiment of the present disclosure, a processor is provided, which is configured to run a program, wherein when the program is run, the method for determining the lubrication state of a drive axle of a vehicle according to an embodiment of the present disclosure is executed.

[0023] According to another aspect of an embodiment of the present disclosure, an electronic device is provided. The electronic device includes one or more processors and a memory, wherein the memory is configured to store one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the method for determining the lubrication status of a vehicle drive axle according to an embodiment of the present disclosure.

[0024] According to another aspect of an embodiment of the present disclosure, a computer program product is also provided, including a non-volatile computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, it performs the steps of the method for determining the lubrication state of the drive axle of a vehicle of the embodiment of the present disclosure.

[0025] In an embodiment of the present disclosure, a driving condition to be tested of a vehicle is determined; based on the driving condition to be tested, the pitch angle of the drive axle of the vehicle is adjusted to a first target value, the roll angle of the drive axle of the vehicle is adjusted to a second target value, and the speed of the drive motor of the vehicle is adjusted to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested; a lubricity score of the drive axle of the vehicle under the driving condition to be tested is obtained, wherein the lubricity score is used to indicate the lubrication state of the drive axle of the vehicle; and in response to the lubricity score being greater than a lubricity threshold, it is determined that the lubrication state of the drive axle of the vehicle meets the lubrication condition. That is to say, the embodiment of the present disclosure adjusts the pitch angle of the vehicle's drive axle to a first target value, adjusts the roll angle of the vehicle's drive axle to a second target value, and adjusts the speed of the vehicle's drive motor to a third target value based on the determined driving condition of the vehicle to be tested, and further obtains the lubrication score of the vehicle's drive axle. When the lubrication score is greater than the lubrication threshold, it is determined that the lubrication state of the vehicle's drive axle meets the lubrication conditions, and comprehensively considers the pitch condition and the roll condition, thereby achieving the technical effect of improving the accuracy of determining the lubrication state of the vehicle's drive axle, and solving the technical problem of low accuracy in determining the lubrication state of the vehicle's drive axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0027] FIG1 is a flow chart of a method for determining a lubrication state of a drive axle of a vehicle according to an embodiment of the present disclosure;

[0028] FIG2 is a flow chart of another method for determining the lubrication status of a drive axle of a vehicle according to an embodiment of the present disclosure;

[0029] 3 is a schematic diagram of a device for determining the lubrication state of a drive axle of a vehicle according to an embodiment of the present disclosure;

[0030] FIG4 is a schematic structural diagram of a non-volatile storage medium according to an embodiment of the present disclosure;

[0031] FIG5 is a schematic structural diagram of a processor according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present disclosure.

[0033] It should be noted that the terms "first," "second," and the like in the specification of the present disclosure and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the numbers used in this manner are interchangeable where appropriate so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus comprising a series of steps or components is not necessarily limited to those steps or components clearly listed, but may include other steps or components that are not clearly listed or inherent to these processes, methods, products, or apparatus.

[0034] According to an embodiment of the present disclosure, an embodiment of a method for determining the lubrication status of a drive axle of a vehicle is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] FIG1 is a flow chart of a method for determining the lubrication status of a drive axle of a vehicle according to an embodiment of the present disclosure. As shown in FIG1 , the method may include the following steps:

[0036] Step S102: determining the vehicle driving condition to be tested.

[0037] In the technical solution provided in the above step S102 of the present disclosure, the driving condition of the vehicle to be tested is determined, wherein the driving condition to be tested can be a pre-set driving condition of the vehicle.

[0038] Step S104, based on the driving condition to be tested, adjust the pitch angle of the vehicle's drive axle to a first target value, adjust the roll angle of the vehicle's drive axle to a second target value, and adjust the speed of the vehicle's drive motor to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested.

[0039] In the technical solution provided in step S104 of the present disclosure, a mapping relationship exists between the driving condition to be tested and the pitch angle of the vehicle's drive axle, the roll angle of the vehicle's drive axle, and the speed of the vehicle's drive motor. Based on this mapping relationship, after determining the driving condition to be tested, the pitch angle of the vehicle's drive axle can be adjusted to a first target value, the roll angle of the vehicle's drive axle can be adjusted to a second target value, and the speed of the vehicle's drive motor can be adjusted to a third target value based on the determined driving condition to be tested. The drive axle can be a device that transmits engine power to the vehicle's drive wheels. The pitch angle of the drive axle can be the angle between the drive axle and the horizontal plane, for example, 5 degrees (°). This is for illustrative purposes only and does not impose a specific limitation on the value of the pitch angle of the drive axle. The roll angle of the drive axle can be the tilt angle of the drive axle relative to the horizontal plane, for example, 10 degrees (°). This is for illustrative purposes only and does not impose a specific limitation on the value of the roll angle of the drive axle. The drive motor can be used to drive the drive axle, and after being driven, the drive axle operates under the driving condition to be tested. The speed of the driving motor may be the speed at which the driving motor rotates, and the unit is revolutions per minute (RPM). For example, it may be 1200 RPM. This is only an example and does not impose any specific limitation on the speed of the driving motor.

[0040] Optionally, the first target value may be a target value for the pitch angle of the drive axle corresponding to the determined driving condition to be tested, such as 10°. The second target value may be a target value for the roll angle of the drive axle corresponding to the determined driving condition to be tested, such as 30°. This is for illustrative purposes only and does not impose any specific limitation on the values ​​of the first and second target values. The third target value may be a target value for the speed of the drive motor corresponding to the determined driving condition to be tested, such as 2000 RPM. This is for illustrative purposes only and does not impose any specific limitation on the values ​​of the third target value.

[0041] Optionally, this embodiment provides observation holes at the drive axle input shaft bearing, differential bearing, above the meshing position of the driving and driven bevel gears, and above the oil sump. These holes are embedded with a transparent glass plate or transparent shell, and the drive axle is then secured to a fixture on the test bench. The glass plate or transparent shell is sealed around the perimeter, and the embedded transparent glass plate or transparent shell facilitates observation of the lubricating oil flow at various locations on the drive axle during subsequent testing.

[0042] Optionally, in this embodiment, the pitch angle and roll angle of the drive axle are input by the computer system according to the set driving condition of the vehicle to be tested, the test stand is adjusted to a specified angle through the rotation mechanism on the test stand, and the speed of the drive motor is further input by the computer system according to the set driving condition of the vehicle to be tested to operate the drive axle and control the speed of the drive axle input shaft, and the load state is set to no-load.

[0043] For example, in this embodiment, the pitch angle can be adjusted in 5° increments within the range of 0-10°, the pitch angle can be adjusted in 10° increments within the range of 10-30°, and the roll angle can be adjusted in 10° increments within the range of -30°-30°. Testing can be conducted under each driving condition to be tested, with the drive axle driven by the drive motor and then operating under the driving condition to be tested. The vehicle speed is initially set at 5 kilometers per hour (km / h), then increased in increments of 5 km / h until a maximum speed of 140 km / h is reached. After the drive motor reaches a stable speed under the driving condition to be tested, the lubricating oil flow at the drive axle input shaft bearing, differential bearing, above the meshing position of the driving and driven bevel gears, and at the oil sump is observed and tested. The lubrication status of each lubrication point on the reference drive axle is compared to determine the lubrication status of the drive axle.

[0044] Step S106 , obtaining a lubricity score of the drive axle of the vehicle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication state of the drive axle of the vehicle.

[0045] In the technical solution provided in step S106 of the present disclosure, a lubricity score of the vehicle's drive axle under the driving condition to be tested can be obtained. The lubricity score can be used to indicate the lubrication status of the vehicle's drive axle, and can be a score representing the lubrication status of the drive axle, and can be expressed in the form of a score.

[0046] For example, the pitch angle and roll angle of the drive axle can be combined with the speed of the drive motor. The pitch angle, roll angle and speed can be used as control input parameters to observe the lubrication status of the drive axle and determine the lubrication score of the drive axle.

[0047] Optionally, lubricity scores for the drive axle under multiple test conditions are obtained and summed to obtain a lubricity score that integrates the lubrication conditions of the drive axle across the multiple tests. Based on this lubricity score, whether the lubrication conditions of the drive axle meet lubrication requirements is determined. For example, the pitch angle, roll angle, and speed of the drive axle can be adjusted according to a gradient within the numerical ranges of the pitch angle, roll angle, and speed of the drive motor. Lubricity scores for the drive axle under different pitch angles, roll angles, and speeds of the drive motor can be obtained. The lubricity scores under the multiple test conditions can then be combined to determine the lubrication condition of the vehicle.

[0048] Step S108 : In response to the lubricity score being greater than the lubricity threshold, it is determined that the lubrication state of the drive axle of the vehicle meets the lubrication condition.

[0049] In the technical solution provided in step S108 of the present disclosure, when the lubricity score is greater than the lubricity threshold, it can be determined that the lubrication condition of the vehicle's drive axle meets the lubrication condition. The lubricity threshold can be a pre-set lubricity threshold based on actual conditions, such as 5%. This is for illustrative purposes only and does not impose a specific limitation on the lubricity threshold value.

[0050] Optionally, this embodiment may obtain the lubrication state of a reference drive axle, and determine the lubrication state of the drive axle under the driving condition to be tested by comparing the lubrication state of the drive axle under the driving condition to be tested with the lubrication state of the reference drive axle.

[0051] Optionally, in this embodiment, the drive axle assembly is fixed to a test bench by a clamp. The test bench has a rotating mechanism, which is controlled by a computer system. The pitch angle and roll angle of the drive axle assembly can be adjusted within the range of -30° to 30° by rotating the test bench, thereby simulating the pitch angle and roll angle of the drive axle when the vehicle is in the driving condition to be tested. The drive motor on the test bench is connected to the flange of the driving bevel gear to drive the master and driven bevel gears, and its speed is controlled by the computer control system.

[0052] In the above-mentioned steps S102 to S108 of the present disclosure, based on the determined driving condition of the vehicle to be tested, the pitch angle of the vehicle's drive axle is adjusted to a first target value, the roll angle of the vehicle's drive axle is adjusted to a second target value, and the speed of the vehicle's drive motor is adjusted to a third target value. A lubricity score of the vehicle's drive axle is further obtained. When the lubricity score is greater than a lubricity threshold, it is determined that the lubrication condition of the vehicle's drive axle meets the lubrication condition. That is, in the embodiment of the present disclosure, not only the pitch condition of the drive axle but also the roll condition is taken into account, making the determined lubrication condition of the drive axle more accurate, thereby achieving the technical effect of improving the accuracy of determining the lubrication condition of the vehicle's drive axle and resolving the technical problem of low accuracy in determining the lubrication condition of the vehicle's drive axle.

[0053] The above method of this embodiment is further introduced below.

[0054] As an optional embodiment, when the lubrication state of the vehicle's drive axle meets the lubrication conditions, the method also includes: in response to the driving condition to be tested being a non-first test condition, determining the current lubricating oil amount in the vehicle's drive axle as the target lubricating oil amount of the vehicle's drive axle; or, in response to the driving condition to be tested being the first test condition, reducing the current lubricating oil amount in the vehicle's drive axle to a first target oil amount according to a set threshold; testing the lubrication state of the vehicle's drive axle under the driving condition to be tested when the lubricating oil amount in the vehicle's drive axle is at the first target oil amount; and determining the target lubricating oil amount of the vehicle's drive axle based on the lubrication state.

[0055] In this embodiment, if the lubrication condition of the vehicle's drive axle meets the lubrication conditions, it can be further determined whether the vehicle's driving condition to be tested is a first-time test condition. When the vehicle's driving condition to be tested is not a first-time test condition, the current lubricating oil level in the vehicle's drive axle can be determined as the target lubricating oil level for the vehicle's drive axle. When the vehicle's driving condition to be tested is a first-time test condition, the current lubricating oil level in the vehicle's drive axle can be reduced to a first target oil level according to a set threshold. When the current lubricating oil level in the vehicle's drive axle is reduced to the first target oil level, the lubrication condition of the vehicle's drive axle under the driving condition to be tested can be tested when the lubricating oil level in the vehicle's drive axle is at the first target oil level. The target lubricating oil level for the drive axle can be a lubricating oil level predetermined based on the design and requirements of the drive axle, for example, 1 liter (L). This is for illustrative purposes only and does not impose any specific limitation on the value of the target lubricating oil level for the drive axle. The set threshold can be a lubricity threshold set in advance based on actual conditions. The first target oil level may be a target oil level obtained by reducing the current lubricating oil level in the drive axle of the vehicle, for example, 0.5 L. This is merely an example and does not impose a specific limitation on the value of the first target oil level.

[0056] Optionally, this embodiment determines whether the vehicle's driving condition to be tested is the first test condition when the lubrication state of the vehicle's drive axle meets the lubrication conditions. When the vehicle's driving condition to be tested is not the first test condition, it means that multiple tests have been conducted under the driving condition to be tested to adjust the lubrication state of the drive axle, and the current lubrication state of the drive axle is already a lubrication state that meets the lubrication conditions under the driving condition to be tested, then the bench test is stopped and this test is ended. When the vehicle's driving condition to be tested is the first test condition, it means that the lubrication state of the vehicle's drive axle meets the lubrication conditions when the vehicle is tested for the first time under the driving condition to be tested. In order to avoid the situation where the lubrication state of the vehicle's drive axle meets the lubrication conditions due to excessive lubricating oil in the drive axle, in this case, the current lubricating oil amount in the vehicle's drive axle can be reduced to the first target oil amount according to the set threshold value of 5%, that is, the oil amount can be reduced by 5%, so as to achieve the purpose of saving the amount of lubricating oil in the drive axle.

[0057] As an optional embodiment, a target lubricating oil quantity of a vehicle's drive axle is determined based on a lubrication state, including: in response to the lubricating oil quantity in the vehicle's drive axle being at a first target oil quantity, the lubrication state of the vehicle's drive axle under a driving condition to be tested meets the lubrication condition, and the first target oil quantity is determined as the target lubricating oil quantity of the vehicle's drive axle.

[0058] In this embodiment, when the oil amount in the drive axle of the vehicle is at a first target oil amount, in response to the oil amount in the drive axle of the vehicle being at the first target oil amount, and when the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition, the first target oil amount can be determined as the target lubricating oil amount of the drive axle of the vehicle.

[0059] Optionally, when the oil level in the vehicle's drive axle is at a first target oil level, a further determination is made as to whether the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies the lubrication condition. If the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies the lubrication condition, since the driving condition to be tested is not the first test condition, that is, the lubricating oil level in the vehicle's drive axle has been adjusted multiple times under the driving condition to ensure that the lubrication condition of the vehicle's drive axle satisfies the lubrication condition, and if the lubricating oil level in the vehicle's drive axle is at the first target oil level, the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies the lubrication condition, and the first target oil level may be determined as the target lubricating oil level for the vehicle's drive axle.

[0060] As an optional embodiment, determining a target lubricating oil quantity of a vehicle's drive axle based on a lubrication state also includes: in response to the lubrication state of the vehicle's drive axle under a driving condition to be tested not meeting a lubrication condition when the lubricating oil quantity in the vehicle's drive axle is at a first target oil quantity, increasing the lubricating oil quantity in the vehicle's drive axle from a first target oil quantity to a second target oil quantity according to a set threshold; testing the lubrication state of the vehicle's drive axle under a driving condition to be tested when the lubricating oil quantity in the vehicle's drive axle is at the second target oil quantity; and determining the target lubricating oil quantity of the vehicle's drive axle based on the lubrication state of the vehicle's drive axle under the driving condition to be tested.

[0061] In this embodiment, in response to the oil level in the vehicle's drive axle being at a first target oil level, and when the lubrication condition of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication condition, the first target oil level of the vehicle's drive axle can be increased to a second target oil level according to a set threshold. When the first target oil level of the vehicle's drive axle is increased to the second target oil level, the lubrication condition of the vehicle's drive axle under the driving condition to be tested when the lubricating oil level in the vehicle's drive axle is at the second target oil level can be tested. The second target oil level can be the target oil level after increasing the first target oil level in the vehicle's drive axle, for example, 1.5L. This is for illustration only and does not impose any specific limitation on the value of the second target oil level.

[0062] Optionally, when the oil level in the vehicle's drive axle is at a first target oil level, it is further determined whether the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition. If the lubrication condition of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication condition, it indicates that the amount of lubricating oil in the vehicle's drive axle is too low when the oil level in the vehicle's drive axle is at the first target oil level. In this case, the first target oil level of the vehicle's drive axle can be increased to a second target oil level according to a set threshold of 5%, i.e., further oil can be added by 5%, so that the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition. The lubrication test simulation is further repeated for each drive axle under each test to determine whether the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition.

[0063] As an optional embodiment, determining a target lubricating oil quantity for the drive axle of the vehicle based on the lubrication state of the drive axle of the vehicle under a driving condition to be tested includes: in response to the lubricating oil quantity in the drive axle of the vehicle being at a second target oil quantity, the lubrication state of the drive axle of the vehicle under the driving condition to be tested meeting the lubrication condition, determining the second target oil quantity as the target lubricating oil quantity for the drive axle of the vehicle; or, in response to the lubricating oil quantity in the drive axle of the vehicle being at the second target oil quantity, the lubrication state of the drive axle of the vehicle under the driving condition to be tested not meeting the lubrication condition, determining the second target oil quantity as the first target oil quantity, and continuing to execute the steps of increasing the lubricating oil quantity in the drive axle of the vehicle from the first target oil quantity to the second target oil quantity according to a set threshold value, and testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the lubricating oil quantity in the drive axle of the vehicle is at the second target oil quantity, until the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition; and determining the lubricating oil quantity corresponding to the lubrication state of the drive axle of the vehicle under the driving condition to be tested meeting the lubrication condition as the target lubricating oil quantity for the drive axle of the vehicle.

[0064] In this embodiment, when the lubricating oil level in the vehicle's drive axle is at a second target oil level and the lubrication condition of the vehicle's drive axle under a tested driving condition satisfies the lubrication condition, the second target oil level may be determined as the target lubricating oil level for the vehicle's drive axle. When the lubricating oil level in the vehicle's drive axle is at the second target oil level and the lubrication condition of the vehicle's drive axle under a tested driving condition does not meet the lubrication condition, the second target oil level may be determined as the first target oil level, and the steps of increasing the first target oil level in the vehicle's drive axle to the second target oil level according to a set threshold and testing the lubrication condition of the vehicle's drive axle under a tested driving condition when the oil level in the vehicle's drive axle is at the second target oil level are continued until the lubrication condition of the vehicle's drive axle under a tested driving condition meets the lubrication condition, and the lubricating oil level in the vehicle's drive axle at this time is determined as the target lubricating oil level for the vehicle's drive axle.

[0065] For example, when the lubricating oil level in the vehicle's drive axle is at a second target oil level, a further determination is made as to whether the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies the lubrication condition. When the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies the lubrication condition, as described above, the driving condition to be tested is not the first test condition, i.e., multiple tests have been conducted under the driving condition to adjust the lubricating oil level in the drive axle. Therefore, in this case, the second target oil level can be determined as the target lubricating oil level of the vehicle's drive axle. When the lubrication condition of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication condition, the second target oil level is determined as the first target oil level, and the first target oil level of the vehicle's drive axle is continuously increased to the second target oil level according to a set threshold of 5%, i.e., oil is continuously added by 5%, until the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition.

[0066] Optionally, this embodiment obtains the lubrication status of the drive axle. When the lubrication status of the drive axle does not meet the set lubrication conditions, the amount of lubricating oil in the drive axle can be increased or decreased according to the set oil amount, and the test bench is returned to execute the pitch angle and roll angle of the drive axle when the vehicle is in the driving condition to be tested, until the lubrication status of the drive axle meets the set lubrication conditions.

[0067] The test method in this embodiment can fully and accurately simulate the lubrication conditions of the drive axle under the operating conditions of the entire vehicle, and perform a lubrication risk assessment on the drive axle based on the lubrication test, thereby making up for the deficiency that the previous drive axle lubrication test only considered the slope conditions. This embodiment can further identify the risks of drive axle lubrication, ensure the product quality of the drive axle, and improve the life and performance of the drive axle.

[0068] As an optional embodiment, in response to the lubricity score being not greater than the lubricity threshold, the method further includes: determining an initial amount of lubricating oil in a drive axle of the vehicle; increasing the amount of lubricating oil in the drive axle of the vehicle from the initial amount of lubricating oil to a third target amount of oil according to a set threshold; and determining whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication conditions when the amount of lubricating oil in the drive axle of the vehicle is at the third target amount of oil.

[0069] In this embodiment, in response to the lubricity score being no greater than a lubricity threshold, an initial lubricating oil quantity in the vehicle's drive axle can be determined. The lubricating oil quantity in the vehicle's drive axle is then increased from the initial lubricating oil quantity to a third target oil quantity according to a set threshold. When the initial lubricating oil quantity in the vehicle's drive axle is increased to the third target oil quantity, it can be determined whether the lubrication condition of the vehicle's drive axle under the tested driving condition meets the lubrication conditions when the lubricating oil quantity in the vehicle's drive axle is at the third target oil quantity. The initial lubricating oil quantity may be the oil quantity before the oil quantity in the drive axle is adjusted, for example, 0.5 L. This is for illustrative purposes only and does not impose a specific limitation on the value of the initial lubricating oil quantity. The third target oil quantity may be the target oil quantity after the initial lubricating oil quantity in the vehicle's drive axle is increased, for example, 1.5 L. This is for illustrative purposes only and does not impose a specific limitation on the value of the third target oil quantity.

[0070] Optionally, if the lubricity score is not greater than the lubricity threshold, indicating that the lubrication state of the current drive axle under the driving condition to be tested does not meet the lubrication condition, the initial lubricating oil level in the vehicle's drive axle can be increased to a third target oil level by 5% of the set threshold. When the lubricating oil level in the vehicle's drive axle reaches the third target oil level, it can be further determined whether the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition.

[0071] As an optional embodiment, the method also includes: in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested meeting the lubrication condition, determining whether the driving condition to be tested is the first test condition; in response to the driving condition to be tested being the first test condition, determining the third target oil quantity as the target lubricating oil quantity of the vehicle's drive axle.

[0072] In this embodiment, in response to the lubricating oil level within the vehicle's drive axle being at a third target oil level, and when the lubrication condition of the vehicle's drive axle under the driving condition to be tested satisfies lubrication conditions, a step of determining whether the driving condition to be tested is a first-time test condition may be performed. Specifically, the step of determining whether the driving condition to be tested is a first-time test condition may be referred to the method described above and will not be further described here. Upon determining that the driving condition to be tested is a first-time test condition, the third target oil level may be determined as the target lubricating oil level for the vehicle's drive axle.

[0073] Optionally, if the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication conditions, but the current driving condition to be tested of the vehicle is not the first test condition, the current amount of lubricating oil in the vehicle's drive axle can be reduced according to the set threshold, and it is determined whether the lubrication state of the vehicle's drive axle meets the lubrication conditions after the lubricating oil amount is reduced. The specific implementation method can refer to the steps performed when reducing the current amount of lubricating oil in the vehicle's drive axle to the first target oil amount as described above, and will not be repeated here.

[0074] As an optional embodiment, the method also includes: in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested not meeting the lubrication condition, determining a third target oil quantity as the initial lubricating oil quantity; continuing to increase the initial lubricating oil quantity in the vehicle's drive axle to the third target oil quantity according to the set threshold, and determining whether the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition when the lubricating oil quantity in the vehicle's drive axle is at the third target oil quantity, until the lubrication state of the vehicle's drive axle meets the lubrication condition.

[0075] In this embodiment, when the lubrication state of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication conditions, the third target oil quantity can be determined as the initial lubricating oil quantity, and the initial lubricating oil quantity of the vehicle's drive axle is continued to be increased to the third target oil quantity according to the set threshold value of 5%, that is, continue to add oil by 5%, and further determine whether the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication conditions until the lubrication state of the vehicle's drive axle meets the lubrication conditions.

[0076] Optionally, in this embodiment, when the lubrication state of the drive axle does not meet the set lubrication conditions under the driving condition to be tested, the amount of lubricating oil in the drive axle is increased or decreased according to the set oil amount, and the driving condition to be tested is continued to be executed until the lubrication state of the drive axle meets the set lubrication conditions, and finally the oil filling amount of the best lubrication state among all the driving conditions to be tested is selected as the final oil filling amount of the drive axle.

[0077] Optionally, when the lubrication condition of the drive axle does not meet the set lubrication conditions, this embodiment increases or decreases the amount of lubricating oil in the drive axle at a gradient of 5% of the set refueling amount, and repeats different driving conditions to be tested in the test. Finally, the lubricity scores of the lubrication conditions of the drive axle after multiple tests are compared, and the oil amount for which the lubricity score of the lubrication condition of the drive axle exceeds the set threshold is set as the optimal oil amount.

[0078] As an optional implementation, the pitch angle of the drive axle of the vehicle is used to indicate the angle between the drive axle and the horizontal plane, and the roll angle of the drive axle of the vehicle is used to indicate the inclination angle of the drive axle relative to the horizontal plane.

[0079] In this embodiment, the pitch angle of the drive axle may be the angle between the drive axle and the horizontal plane, for example, it may be 5°, and the roll angle of the drive axle may be the inclination angle of the drive axle relative to the horizontal plane, for example, it may be 10°. This is only for illustration, and no specific limitation is imposed on the values ​​of the pitch angle and roll angle of the drive axle.

[0080] As an optional implementation, under the driving condition to be tested, the pitch angle of the vehicle's drive axle is adjusted according to a first gradient, the roll angle of the vehicle's drive axle is adjusted according to a second gradient, and the speed of the vehicle's drive motor is adjusted according to a third gradient.

[0081] In this embodiment, the first gradient, the second gradient, and the third gradient can be preset. For example, the pitch angle can be adjusted in a gradient of 5° when it is in the range of 0 to 10°, in a gradient of 10° when it is in the range of 10 to 30°, and in a gradient of 10° when it is in the range of -30° to 30°. By adjusting the pitch angle and the roll angle, multiple tests can be performed under each driving condition to be tested. The drive axle of the vehicle is driven by a drive motor, and the driven drive axle works under the driving condition to be tested. The vehicle speed is set to 5 kilometers per hour (km / h) during the initial test, and then increased by 5 km / h until the maximum speed of 140 km / h is reached.

[0082] Optionally, the pitch angle, roll angle and speed of the drive motor of the drive axle can be adjusted according to the adjustment gradient within the numerical range of the pitch angle, roll angle and speed of the drive motor, and the lubrication score of the drive axle under different pitch angles, roll angles and speeds of the drive motor can be obtained. The lubrication status of the vehicle can then be judged by combining the lubrication scores under various test conditions.

[0083] In the above steps, the driving condition to be tested of the vehicle is determined; based on the driving condition to be tested, the pitch angle of the drive axle of the vehicle is adjusted to a first target value, the roll angle of the drive axle of the vehicle is adjusted to a second target value, and the speed of the drive motor of the vehicle is adjusted to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested; the lubricity score of the drive axle of the vehicle under the driving condition to be tested is obtained, wherein the lubricity score is used to indicate the lubrication state of the drive axle of the vehicle; and in response to the lubricity score being greater than the lubricity threshold, it is determined that the lubrication state of the drive axle of the vehicle meets the lubrication condition. That is to say, the embodiment of the present disclosure adjusts the pitch angle of the vehicle's drive axle to a first target value, adjusts the roll angle of the vehicle's drive axle to a second target value, and adjusts the speed of the vehicle's drive motor to a third target value based on the determined driving condition of the vehicle to be tested, and further obtains the lubrication score of the vehicle's drive axle. When the lubrication score is greater than the lubrication threshold, it is determined that the lubrication state of the vehicle's drive axle meets the lubrication conditions, and comprehensively considers the pitch condition and the roll condition, thereby achieving the technical effect of improving the accuracy of determining the lubrication state of the vehicle's drive axle, and solving the technical problem of low accuracy in determining the lubrication state of the vehicle's drive axle.

[0084] The technical solutions of the embodiments of the present disclosure are illustrated below with reference to preferred implementations.

[0085] The drive axle is a mechanism located at the end of the transmission that changes the transmission's speed and torque and transmits them to the drive wheels. The drive axle typically consists of a final drive unit, differential, wheel drive system, and drive axle housing. The final drive unit is used to reduce the speed and increase the torque of the power transmitted from the transmission, and to change the power's direction to ensure sufficient driving force and appropriate speed for the vehicle. The quality of lubrication directly affects the lifespan, operational reliability, and efficiency of the drive axle. Therefore, during the product design verification process, a lubrication bench test is required to assess whether the lubrication conditions of rotating components such as bearings and gears within the vehicle's drive axle assembly meet product design requirements under actual vehicle operating conditions.

[0086] Currently, the drive axle lubrication bench test only considers the lubrication status of the drive axle assembly under different pitch conditions in the input shaft direction, but does not consider whether the roll condition has an impact on the lubrication status of the vehicle's drive axle. As a result, there is a problem of low accuracy in determining the lubrication status of the vehicle's drive axle. Since the lubrication status of one side of the drive axle will drop significantly under the lateral acceleration condition when the actual vehicle turns, it is necessary to simulate this condition through a bench test to evaluate its lubrication status.

[0087] As an optional example, a drive axle main reducer lubrication test method is proposed. The method installs the drive axle, debugs the equipment, starts the test and evaluates the test results. The method can fully and accurately simulate the lubrication condition of the drive axle main reducer under the operating conditions of the whole vehicle. The measured data results basically represent the lubrication condition of the sample drive axle main reducer on the whole vehicle. The lubrication problems of the drive axle main reducer can be discovered in advance and solved in time to ensure product quality. Since this method only considers the slope condition and does not consider the roll condition, there is a problem of low accuracy in determining the lubrication status of the vehicle's drive axle.

[0088] As another optional example, a drive axle noise and lubrication testing device is also proposed, which includes a support platform, a crane is installed on one side of the upper surface of the support platform, a rectangular notch is opened in the middle of one end of the support platform near the crane, two symmetrically arranged first receiving mechanisms are installed in the middle of the upper surface of the support platform, a second receiving mechanism is installed on the other side of the upper surface of the support platform, and a first electric push rod is installed on the left and right sides of the upper surface of the support platform near the first receiving mechanism, a support rod is installed on one side of the telescopic end of the first electric push rod, and a number of detection sensors for detecting the tested drive axle are installed on the support rod, the support rod is connected to the detection sensor through a position adjustment mechanism, and multiple detection sensors are used to detect at different test positions to detect various performances of the tested drive axle, and ensure that each detection sensor can perform detection in the best detection state and detection position during the detection process. Since this method does not involve the lubrication test method of the drive axle, there is a problem of low accuracy in determining the lubrication state of the vehicle's drive axle.

[0089] As another optional example, a drive axle test device is also proposed, in which the first support assembly includes a first bracket and a second bracket, one end of the drive axle to be tested is connected to the first bracket, and the other end is connected to the second bracket. The first angle adjustment mechanism is used to adjust the pitch angle of the drive axle to be tested, and the second angle adjustment mechanism is used to adjust the tilt angle of the test platform. The drive axle test device has a reasonable structural layout and occupies a small area. It can simulate the lubrication test of the drive axle to be tested under the uphill and downhill conditions of the actual vehicle, and can also simulate the lubrication test of the drive axle to be tested under the rolling conditions of the actual vehicle, thereby improving the test efficiency, thereby shortening the product development cycle and improving production efficiency. Since this method does not involve the lubrication test method of the drive axle, there is a problem of low accuracy in determining the lubrication status of the vehicle's drive axle.

[0090] To solve the above problems, this embodiment proposes a method for determining the lubrication status of a vehicle's drive axle. In response to the existing drive axle test method that simply considers the pitch angle, that is, the current status of the slope working condition, this method comprehensively considers the slope working condition and the roll working condition, simulates the different operating conditions of the drive axle assembly on the whole vehicle through an adjustable angle test bench, and monitors the oil volume and lubrication conditions of the drive axle input shaft bearing position, the differential bearing position, the driving and driven bevel gear meshing position, and the oil tank position. This helps designers to timely and effectively discover lubrication problems in the drive axle assembly, while improving the life and performance of the drive axle, thereby achieving the technical effect of improving the accuracy of determining the lubrication status of the vehicle's drive axle, and solving the technical problem of low accuracy in determining the lubrication status of the vehicle's drive axle.

[0091] FIG2 is a flow chart of another method for determining the lubrication status of a drive axle of a vehicle according to an embodiment of the present disclosure. As shown in FIG2 , the flow chart of the method for determining the lubrication status of a drive axle of a vehicle may include the following steps:

[0092] Step S201, debugging the test bench.

[0093] In the above step S201, the stage is adjusted to a specified angle through the rotation mechanism on the stage.

[0094] Step S202: adjusting the pitch angle of the drive axle.

[0095] In the above step S202, the pitch angle is adjusted in a gradient of 5 degrees when it is in the range of 0 to 10 degrees, and is adjusted in a gradient of 10 degrees when it is in the range of 10 to 30 degrees.

[0096] Step S203: adjusting the roll angle of the drive axle.

[0097] In the above step S203, the roll angle is adjusted in a range of -30° to 30° with a gradient of 10°.

[0098] Step S204: determine whether the lubrication state meets the lubrication conditions.

[0099] In step S204, it is determined whether the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition. If the lubrication condition of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition, the process proceeds to step S205; otherwise, the process proceeds to step S206.

[0100] Step S205 , determining whether the driving condition to be tested is the first test condition.

[0101] In the above step S205, it is determined whether the vehicle's driving condition to be tested is the first test condition. If the vehicle's driving condition to be tested is the first test condition, the process proceeds to step S207; otherwise, the process proceeds to step S208.

[0102] Step S206, add 5% fuel.

[0103] In the above step S206, when the oil amount in the vehicle's drive axle is at the first target oil amount, and the lubrication state of the vehicle's drive axle under the driving condition to be tested does not meet the lubrication conditions, it means that the amount of lubricating oil in the vehicle's drive axle is too little, then the first target oil amount of the vehicle's drive axle can be increased to the second target oil amount according to the set threshold value of 5%, that is, 5% of oil can be added, so as to achieve the goal of making the lubrication state of the vehicle's drive axle under the driving condition to be tested meet the lubrication conditions.

[0104] Optionally, when the amount of lubricating oil in the drive axle of the vehicle is at a second target oil amount, and the lubrication state of the drive axle of the vehicle under the driving condition to be tested does not meet the lubrication condition, the second target oil amount is determined as the first target oil amount, and the steps of increasing the first target oil amount of the drive axle of the vehicle to the second target oil amount according to the set threshold value of 5%, that is, adding 5%, and testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the oil amount in the drive axle of the vehicle is at the second target oil amount are continued until the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition.

[0105] Optionally, when the amount of lubricating oil in the drive axle of the vehicle is at a third target oil amount and the lubrication state of the drive axle of the vehicle under the driving condition to be tested does not meet the lubrication condition, the third target oil amount is determined as the initial lubricating oil amount, and the steps of increasing the initial lubricating oil amount in the drive axle of the vehicle to the third target oil amount according to the set threshold value of 5%, that is, adding 5%, and determining whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition when the amount of lubricating oil in the drive axle of the vehicle is at the third target oil amount, are continued until the lubrication state of the drive axle of the vehicle meets the lubrication condition.

[0106] Step S207, reduce oil by 5%.

[0107] In the above step S207, when the lubrication state of the vehicle's drive axle meets the lubrication condition, it is determined whether the vehicle's driving condition to be tested is the first test condition. When the vehicle's driving condition to be tested is not the first test condition, the process proceeds to step S208. When the vehicle's driving condition to be tested is the first test condition, it means that the lubrication state of the vehicle's drive axle meets the lubrication condition when the vehicle is first tested under the driving condition to be tested. To avoid the situation where the lubrication state of the vehicle's drive axle meets the lubrication condition due to an excessive amount of lubricating oil in the drive axle, in this case, the current amount of lubricating oil in the vehicle's drive axle can be reduced to a first target oil amount according to a set threshold of 5%, i.e., the oil is reduced by 5%.

[0108] Step S208, stop the bench test.

[0109] In the above step S208, when the vehicle's driving condition to be tested is not the first test condition, it means that multiple tests have been carried out under the driving condition to be tested to adjust the lubrication state of the drive axle, and the current lubrication state of the drive axle is already a lubrication state that meets the lubrication conditions under the driving condition to be tested, then the bench test is stopped and this test is ended.

[0110] In this embodiment, the drive axle assembly is fixed to a test stand by a clamp. The test stand has a rotating mechanism controlled by a computer system. The rotating mechanism can adjust the pitch angle and roll angle of the drive axle assembly within a range of -30° to 30° by rotating the test stand, thereby simulating the pitch angle and roll angle of the drive axle under the vehicle's set driving conditions. The drive motor on the test stand is connected to the flange of the driving bevel gear and is used to drive the master and driven bevel gears. The speed of the motor is controlled by the computer control system.

[0111] In this embodiment, observation holes are provided at the drive axle input shaft bearing, the differential bearing, above the meshing position of the driving and driven bevel gears, and above the oil sump. These holes are embedded in a transparent glass plate or transparent shell, and the drive axle is then secured to a fixture on a test bench. The glass plate or transparent shell is sealed around the perimeter, and the embedded transparent glass plate or transparent shell facilitates observation of the lubricating oil flow at various locations on the drive axle during subsequent testing.

[0112] The test driving conditions are set in 5° increments for pitch angles between 0 and 10°, 10° increments for pitch angles between 10 and 30°, and 10° increments for roll angles between -30° and 30°. Tests are conducted under each test driving condition, with the drive axle driven by the drive motor and operating under the test driving condition. The initial test speed is set at 5 km / h, then increased in increments of 5 km / h until a maximum speed of 140 km / h is reached. After the speed stabilizes under each test driving condition, the lubricant flow is observed and tested at the drive axle input shaft bearings, differential bearings, above the meshing point of the driving and driven bevel gears, and at the oil sump. The lubrication conditions at each lubrication point on the reference drive axle are compared to determine the lubrication status of the drive axle.

[0113] The obtained drive axle pitch and roll angles are combined with the drive motor speed. These angles, roll, and speed are used as control input parameters to observe the drive axle's lubrication status and determine its lubricity score. The lubricity score is obtained by summing the lubrication status of each test to obtain a lubricity score that combines the lubrication conditions of the drive axle across multiple tests. This lubricity score can be used to determine whether the drive axle's lubrication conditions meet lubrication requirements.

[0114] When the lubrication condition of the drive axle does not meet the set lubrication conditions, the amount of lubricating oil in the drive axle is increased or decreased with a gradient of 5% of the set refueling amount, and different driving conditions to be tested in the test are repeated. Finally, the lubricity scores of the lubrication conditions of the drive axle after multiple tests are compared, and the oil amount for which the lubricity score of the lubrication condition of the drive axle exceeds the set threshold is set as the optimal oil amount.

[0115] This embodiment determines a driving condition to be tested of the vehicle; based on the driving condition to be tested, adjusts the pitch angle of the drive axle of the vehicle to a first target value, adjusts the roll angle of the drive axle of the vehicle to a second target value, and adjusts the speed of the drive motor of the vehicle to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested; obtains a lubricity score of the drive axle of the vehicle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication status of the drive axle of the vehicle; and in response to the lubricity score being greater than a lubricity threshold, determines that the lubrication status of the drive axle of the vehicle meets the lubrication condition. That is to say, the embodiment of the present disclosure adjusts the pitch angle of the vehicle's drive axle to a first target value, adjusts the roll angle of the vehicle's drive axle to a second target value, and adjusts the speed of the vehicle's drive motor to a third target value based on the determined driving condition of the vehicle to be tested, and further obtains the lubrication score of the vehicle's drive axle. When the lubrication score is greater than the lubrication threshold, it is determined that the lubrication state of the vehicle's drive axle meets the lubrication conditions, and comprehensively considers the pitch condition and the roll condition, thereby achieving the technical effect of improving the accuracy of determining the lubrication state of the vehicle's drive axle, and solving the technical problem of low accuracy in determining the lubrication state of the vehicle's drive axle.

[0116] According to an embodiment of the present disclosure, a device for determining the lubrication state of a vehicle drive axle is also provided. It should be noted that the device for determining the lubrication state of a vehicle drive axle can be used to execute the method for determining the lubrication state of a vehicle drive axle in embodiment 1.

[0117] Figure 3 is a schematic diagram of a device for determining the lubrication status of a drive axle of a vehicle according to an embodiment of the present disclosure. As shown in Figure 3, the device 300 for determining the lubrication status of the drive axle of the vehicle may include: a first determination component 302, an adjustment component 304, an acquisition component 306 and a second determination component 308.

[0118] The first determining component 302 is configured to determine the driving condition of the vehicle to be tested.

[0119] The adjustment component 304 is configured to adjust the pitch angle of the vehicle's drive axle to a first target value, adjust the roll angle of the vehicle's drive axle to a second target value, and adjust the speed of the vehicle's drive motor to a third target value based on the driving condition to be tested, wherein the drive motor is configured to drive the drive axle, and the driven drive axle operates under the driving condition to be tested.

[0120] The acquisition component 306 is configured to acquire a lubricity score of the drive axle of the vehicle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication status of the drive axle of the vehicle.

[0121] The second determining component 308 is configured to determine that the lubrication state of the drive axle of the vehicle meets the lubrication condition in response to the lubrication score being greater than the lubrication threshold.

[0122] Optionally, the device also includes: a third determination component, configured to determine the current amount of lubricating oil in the vehicle's drive axle as the target amount of lubricating oil in the vehicle's drive axle in response to the driving condition to be tested being a non-first test condition; or, a fourth determination component, configured to reduce the current amount of lubricating oil in the vehicle's drive axle to a first target amount according to a set threshold in response to the driving condition to be tested being the first test condition; a testing component, configured to test the lubrication state of the vehicle's drive axle under the driving condition to be tested when the amount of lubricating oil in the test vehicle's drive axle is at the first target amount; and a fifth determination component, configured to determine the target amount of lubricating oil in the vehicle's drive axle based on the lubrication state.

[0123] Optionally, the fifth determination component is configured to determine the first target oil amount as the target lubricating oil amount of the drive axle of the vehicle in response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested meeting the lubrication conditions in response to the lubrication oil amount in the drive axle of the vehicle being at the first target oil amount.

[0124] Optionally, the fifth determination component is further configured to increase the amount of lubricating oil in the drive axle of the vehicle from the first target oil amount to a second target oil amount according to a set threshold in response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested not meeting the lubrication condition when the amount of lubricating oil in the drive axle of the vehicle is at the first target oil amount; test the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the amount of lubricating oil in the drive axle of the vehicle is at the second target oil amount; and determine the target lubricating oil amount of the drive axle of the vehicle based on the lubrication state of the drive axle of the vehicle under the driving condition to be tested.

[0125] Optionally, the fifth determination component is further configured to determine the second target oil quantity as the target lubricating oil quantity of the drive axle of the vehicle in response to the lubricating oil quantity in the drive axle of the vehicle being at the second target oil quantity and the lubrication state of the drive axle of the vehicle under the driving condition to be tested meeting the lubrication condition; determine the second target oil quantity as the first target oil quantity in response to the lubricating oil quantity in the drive axle of the vehicle being at the second target oil quantity and the lubrication state of the drive axle of the vehicle under the driving condition to be tested not meeting the lubrication condition, and continue to execute the steps of increasing the lubricating oil quantity in the drive axle of the vehicle from the first target oil quantity to the second target oil quantity according to the set threshold value, and testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the lubricating oil quantity in the drive axle of the vehicle is at the second target oil quantity, until the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition; and determine the lubricating oil quantity corresponding to the time when the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition as the target lubricating oil quantity of the drive axle of the vehicle.

[0126] Optionally, the device also includes: a sixth determination component, configured to determine the initial amount of lubricating oil in the drive axle of the vehicle in response to the lubrication score being not greater than the lubrication threshold; a processing component, configured to increase the amount of lubricating oil in the drive axle of the vehicle from the initial amount of lubricating oil to a third target amount of oil according to a set threshold; and a seventh determination component, configured to determine whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication conditions when the amount of lubricating oil in the drive axle of the vehicle is at the third target amount of oil.

[0127] Optionally, the device also includes: an eighth determination component, configured to determine whether the driving condition to be tested is the first test condition in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested meeting the lubrication condition; a ninth determination component, configured to determine the third target oil quantity as the target lubricating oil quantity of the vehicle's drive axle in response to the driving condition to be tested being the first test condition.

[0128] Optionally, the device also includes: a tenth determination component, configured to determine the third target oil quantity as the initial lubricating oil quantity in response to the lubrication state of the vehicle's drive axle under the driving condition to be tested not meeting the lubrication condition; an eleventh determination component, configured to continue to execute the steps of increasing the initial lubricating oil quantity in the vehicle's drive axle to the third target oil quantity according to a set threshold, and determining whether the lubrication state of the vehicle's drive axle under the driving condition to be tested meets the lubrication condition when the lubricating oil quantity in the vehicle's drive axle is at the third target oil quantity, until the lubrication state of the vehicle's drive axle meets the lubrication condition.

[0129] In the embodiment of the present disclosure, the driving condition to be tested of the vehicle is determined by the first determination component 302, and the pitch angle of the drive axle of the vehicle is adjusted to a first target value, the roll angle of the drive axle of the vehicle is adjusted to a second target value, and the speed of the drive motor of the vehicle is adjusted to a third target value based on the driving condition to be tested by the adjustment component 304, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested, and the lubricity score of the drive axle of the vehicle under the driving condition to be tested is obtained by the acquisition component 306, wherein the lubricity score is used to indicate the lubrication state of the drive axle of the vehicle, and the second determination component 308 determines that the lubrication state of the drive axle of the vehicle meets the lubrication condition in response to the lubricity score being greater than the lubricity threshold. That is to say, the embodiment of the present disclosure adjusts the pitch angle of the vehicle's drive axle to a first target value, adjusts the roll angle of the vehicle's drive axle to a second target value, and adjusts the speed of the vehicle's drive motor to a third target value based on the determined driving condition of the vehicle to be tested, and further obtains the lubrication score of the vehicle's drive axle. When the lubrication score is greater than the lubrication threshold, it is determined that the lubrication state of the vehicle's drive axle meets the lubrication conditions, and comprehensively considers the pitch condition and the roll condition, thereby achieving the technical effect of improving the accuracy of determining the lubrication state of the vehicle's drive axle, and solving the technical problem of low accuracy in determining the lubrication state of the vehicle's drive axle.

[0130] According to an embodiment of the present disclosure, a vehicle is further provided, which is used to execute any of the above methods for determining the lubrication status of a drive axle of a vehicle.

[0131] According to an embodiment of the present disclosure, a computer-readable storage medium is also provided, which includes a stored program, wherein when the program is run, the device where the computer-readable storage medium is located is controlled to execute the method for determining the lubrication status of the drive axle of the above-mentioned vehicle.

[0132] According to an embodiment of the present disclosure, a processor is further provided, which is used to run a program, wherein the program executes the method for determining the lubrication status of the drive axle of the vehicle when running.

[0133] According to an embodiment of the present disclosure, an electronic device is also provided, which includes one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by one or more processors, the method for determining the lubrication status of the drive axle of the above-mentioned vehicle is executed.

[0134] According to an embodiment of the present disclosure, a non-volatile storage medium is also provided, wherein the non-volatile storage medium includes a stored program, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute any method for determining the lubrication state of the drive axle of a vehicle in the embodiment of the present disclosure.

[0135] FIG4 is a schematic diagram of a non-volatile storage medium according to an embodiment of the present disclosure. As shown in FIG4 , a program product 40 according to an embodiment of the present disclosure is described, which stores a computer program that, when executed by a processor, implements the following steps: determining a vehicle driving condition to be tested; adjusting the pitch angle of the vehicle's drive axle to a first target value, adjusting the roll angle of the vehicle's drive axle to a second target value, and adjusting the speed of the vehicle's drive motor to a third target value based on the driving condition to be tested, wherein the drive motor is used to drive the drive axle, and the driven drive axle operates under the driving condition to be tested; obtaining a lubricity score of the vehicle's drive axle under the driving condition to be tested, wherein the lubricity score is used to indicate the lubrication status of the vehicle's drive axle; and determining that the lubrication status of the vehicle's drive axle meets a lubrication condition in response to the lubricity score being greater than a lubricity threshold.

[0136] Non-volatile storage media may include a data signal transmitted in baseband or as part of a carrier wave, carrying readable program code. Such a transmitted data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Non-volatile storage media may transmit, propagate, or transfer programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0137] The program code contained in the non-volatile storage medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, radio frequency, etc., or any suitable combination of the above.

[0138] According to an embodiment of the present disclosure, a processor is also provided, which is configured to run a program. Figure 5 is a structural schematic diagram of a processor according to an embodiment of the present disclosure. As shown in Figure 5, the processor 50 is configured to run a program, wherein when the program is running, the method for determining the lubrication status of the drive axle of the above-mentioned vehicle is executed.

[0139] Optionally, in this embodiment, the processor 50 can be configured to perform the following steps: determining the vehicle's driving condition to be tested; based on the driving condition to be tested, adjusting the pitch angle of the vehicle's drive axle to a first target value, adjusting the roll angle of the vehicle's drive axle to a second target value, and adjusting the speed of the vehicle's drive motor to a third target value, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested; obtaining a lubrication score of the vehicle's drive axle under the driving condition to be tested, wherein the lubrication score is used to indicate the lubrication status of the vehicle's drive axle; in response to the lubrication score being greater than the lubrication threshold, determining that the lubrication status of the vehicle's drive axle meets the lubrication condition.

[0140] The processor 50 may execute various functional applications and data processing by running software programs and components stored in the memory, that is, implement the method for determining the lubrication status of the drive axle of the vehicle.

[0141] According to another aspect of an embodiment of the present disclosure, a computer program product is also provided, including a non-volatile computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, it performs the steps of the method for determining the lubrication state of the drive axle of a vehicle of the embodiment of the present disclosure.

[0142] The serial numbers of the above-mentioned embodiments of the present disclosure are for description only and do not represent the advantages or disadvantages of the embodiments.

[0143] In the above embodiments of the present disclosure, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0144] In the several embodiments provided in the present disclosure, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of components can be a logical function division. There may be other division methods in actual implementation. For example, multiple components or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of components or components can be electrical or other forms.

[0145] The components identified as separate components may or may not be physically separate, and the components identified as components may or may not be physical components, that is, they may be located in one place or distributed across multiple components. Some or all of these components may be selected based on actual needs to achieve the purpose of this embodiment.

[0146] In addition, the functional components in the various embodiments of the present disclosure may be integrated into a single processing component, each component may exist physically separately, or two or more components may be integrated into a single component. The aforementioned integrated components may be implemented in the form of hardware or software functional components.

[0147] If the integrated components are implemented in the form of software functional components and determined to be sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present disclosure 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 for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: U disk, read-only memory (ROM), random access memory (RAM), mobile hard disk, magnetic disk or optical disk, etc. Various media that can store program codes.

[0148] The above is only a preferred embodiment of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present disclosure. These improvements and modifications should also be regarded as within the scope of protection of the present disclosure. Industrial Applicability

[0149] The solution provided by the embodiment of the present disclosure can be applied to the process of determining the lubrication state of a vehicle's drive axle. Based on the determined driving condition of the vehicle to be tested, the pitch angle of the vehicle's drive axle is adjusted to a first target value, the roll angle of the vehicle's drive axle is adjusted to a second target value, and the speed of the vehicle's drive motor is adjusted to a third target value. The lubrication score of the vehicle's drive axle is further obtained. When the lubrication score is greater than the lubrication threshold, it is determined that the lubrication state of the vehicle's drive axle meets the lubrication conditions. The pitch condition and the roll condition are comprehensively considered, thereby achieving the technical effect of improving the accuracy of determining the lubrication state of the vehicle's drive axle.

Claims

1. A method for determining the lubrication state of a drive axle of a vehicle, comprising: Determine the driving condition of the vehicle to be tested; Based on the driving condition to be tested, adjusting the pitch angle of the driving axle of the vehicle to a first target value, adjusting the roll angle of the driving axle of the vehicle to a second target value, and adjusting the speed of the driving motor of the vehicle to a third target value, wherein the driving motor is used to drive the driving axle, and the driven driving axle works under the driving condition to be tested; Obtaining a lubricity score of the drive axle of the vehicle under the driving condition to be tested, wherein the lubricity score is used to indicate a lubrication state of the drive axle of the vehicle; In response to the lubricity score being greater than a lubricity threshold, it is determined that the lubrication state of the drive axle of the vehicle satisfies a lubrication condition.

2. The method according to claim 1, wherein: In the case where the lubrication state of the drive axle of the vehicle satisfies the lubrication condition, the method further includes: In response to the driving condition to be tested being a non-first test condition, determining a current amount of lubricating oil in the drive axle of the vehicle as a target amount of lubricating oil in the drive axle of the vehicle; or, In response to the driving condition to be tested being a first test condition, reducing the current amount of lubricating oil in the drive axle of the vehicle to a first target amount of lubricating oil according to a set threshold; Testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the amount of lubricating oil in the drive axle of the vehicle is at the first target oil amount; The target lubricating oil amount of the drive axle of the vehicle is determined based on the lubrication state.

3. The method according to claim 2, wherein: The step of determining the target lubricating oil amount of the drive axle of the vehicle based on the lubrication state includes: In response to the lubricating oil amount in the drive axle of the vehicle being at the first target oil amount, the lubrication state of the drive axle of the vehicle under the driving condition to be tested satisfies the lubrication condition, and the first target oil amount is determined as the target lubricating oil amount of the drive axle of the vehicle.

4. The method according to claim 3, wherein: The step of determining the target lubricating oil amount of the drive axle of the vehicle based on the lubrication state further includes: In response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested not satisfying the lubrication condition when the lubrication oil amount in the drive axle of the vehicle is at the first target oil amount, increasing the lubrication oil amount in the drive axle of the vehicle from the first target oil amount to a second target oil amount according to a set threshold; Testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the amount of lubricating oil in the drive axle of the vehicle is at the second target oil amount; The target lubricating oil amount of the drive axle of the vehicle is determined based on the lubrication state of the drive axle of the vehicle under the driving condition to be tested.

5. The method according to claim 4, wherein: The step of determining the target lubricating oil amount of the drive axle of the vehicle based on the lubrication state of the drive axle of the vehicle under the driving condition to be tested includes: In response to the lubricating oil amount in the drive axle of the vehicle being at the second target oil amount, the lubrication state of the drive axle of the vehicle under the driving condition to be tested satisfies the lubrication condition, determining the second target oil amount as the target lubricating oil amount of the drive axle of the vehicle; or, In response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested not satisfying the lubrication condition when the lubrication oil amount in the drive axle of the vehicle is at the second target oil amount, determining the second target oil amount as the first target oil amount, and continuing to perform the steps of increasing the lubrication oil amount in the drive axle of the vehicle from the first target oil amount to the second target oil amount according to the set threshold value, and testing the lubrication state of the drive axle of the vehicle under the driving condition to be tested when the lubrication oil amount in the drive axle of the vehicle is at the second target oil amount, until the lubrication state of the drive axle of the vehicle under the driving condition to be tested satisfies the lubrication condition; The lubricating oil quantity corresponding to when the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition is determined as the target lubricating oil quantity of the drive axle of the vehicle.

6. The method according to claim 1, wherein: In response to the lubricity score being not greater than a lubricity threshold, the method further includes: determining an initial amount of lubricating oil in a drive axle of the vehicle; increasing the amount of lubricating oil in the drive axle of the vehicle from the initial lubricating oil amount to a third target oil amount according to a set threshold; When it is determined that the amount of lubricating oil in the drive axle of the vehicle is at the third target oil amount, whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested satisfies the lubrication condition.

7. The method according to claim 6, wherein: The method further comprises: In response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested satisfying the lubrication condition, determining whether the driving condition to be tested is a first test condition; In response to the driving condition to be tested being a first test condition, the third target oil quantity is determined as the target lubricating oil quantity of the drive axle of the vehicle.

8. The method according to claim 6, wherein: The method further comprises: In response to the lubrication state of the drive axle of the vehicle under the driving condition to be tested not satisfying the lubrication condition, determining the third target oil amount as the initial lubrication oil amount; Continue to execute the steps of increasing the initial lubricating oil amount in the drive axle of the vehicle to the third target oil amount according to the set threshold, and determining whether the lubrication state of the drive axle of the vehicle under the driving condition to be tested meets the lubrication condition when the lubricating oil amount in the drive axle of the vehicle is at the third target oil amount, until the lubrication state of the drive axle of the vehicle meets the lubrication condition.

9. The method according to claim 1, wherein: The pitch angle of the driving axle of the vehicle is used to indicate the angle between the driving axle and the horizontal plane, and the roll angle of the driving axle of the vehicle is used to indicate the inclination angle of the driving axle relative to the horizontal plane.

10. The method according to claim 9, wherein: Under the driving condition to be tested, the pitch angle of the drive axle of the vehicle is adjusted according to a first gradient, the roll angle of the drive axle of the vehicle is adjusted according to a second gradient, and the rotation speed of the drive motor of the vehicle is adjusted according to a third gradient.

11. A device for determining the lubrication state of a drive axle of a vehicle, comprising: A first determination component is configured to determine a driving condition of the vehicle to be tested; an adjustment component, configured to adjust the pitch angle of the drive axle of the vehicle to a first target value, adjust the roll angle of the drive axle of the vehicle to a second target value, and adjust the speed of the drive motor of the vehicle to a third target value based on the driving condition to be tested, wherein the drive motor is used to drive the drive axle, and the driven drive axle works under the driving condition to be tested; an acquisition component, configured to acquire a lubricity score of the drive axle of the vehicle under the driving condition to be tested, wherein the lubricity score is used to indicate a lubrication state of the drive axle of the vehicle; The second determination component is configured to determine that the lubrication state of the drive axle of the vehicle meets the lubrication condition in response to the lubrication score being greater than a lubrication threshold.

12. A computer-readable storage medium, the computer-readable storage medium comprising a stored program, wherein: When the program is executed by the processor, the device where the storage medium is located is controlled to execute the method according to any one of claims 1 to 10.

13. A processor for running a program, wherein: When the program is executed, the method according to any one of claims 1 to 10 is executed.

14. An electronic device comprising one or more processors and a memory, wherein the memory is used to store one or more programs, wherein: When the one or more programs are executed by the one or more processors, the one or more processors are enabled to implement the method according to any one of claims 1 to 10.

15. A vehicle, configured to perform the method according to any one of claims 1 to 10.

16. A computer program product, comprising computer instructions, which implement the method according to any one of claims 1 to 10 when executed by a processor.

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