Oil temperature threshold determination method and vehicle

Abstract

The application discloses an oil temperature threshold determination method and a vehicle. The method comprises the following steps: obtaining a preset use temperature of lubricating oil in a vehicle assembly; and performing a bench test on the vehicle assembly based on the preset use temperature to determine an oil temperature threshold of the vehicle assembly in different oil temperature intervals. The application solves the technical problem of low work efficiency of the vehicle in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of vehicle control, in particular to an oil temperature threshold determination method and a vehicle. BACKGROUND

[0002] High temperature limit torque phenomenon occurs when the oil temperature in the vehicle assembly is too high, which reduces the service life of the vehicle assembly. The current related technology for controlling oil temperature mainly adopts some forced cooling or torque and speed limiting methods such as increasing the amount of lubricating oil, but this method may cause the problem of low working efficiency of the vehicle due to excessive or insufficient oil amount.

[0003] At present, there is no effective solution to the above problems. SUMMARY

[0004] The embodiments of the present application provide an oil temperature threshold determination method and a vehicle to at least solve the technical problem of low working efficiency of the vehicle in the related art.

[0005] According to an aspect of an embodiment of the present application, an oil temperature threshold determination method is provided, comprising: obtaining a preset use temperature of lubricating oil in a vehicle assembly; and performing a bench test on the vehicle assembly based on the preset use temperature to determine an oil temperature threshold of the vehicle assembly in different oil temperature intervals.

[0006] Optionally, the preset use temperature comprises a regular use temperature, a sensitive use temperature and a preset short-time oil temperature range, the bench test on the vehicle assembly based on the preset use temperature to determine the oil temperature threshold of the vehicle assembly in different oil temperature intervals comprises: performing the bench test on the vehicle assembly based on the regular use temperature to determine a long-time oil temperature threshold of the vehicle assembly, wherein the long-time oil temperature threshold is used to represent an oil temperature threshold under which the vehicle assembly meets a preset vehicle use mileage; performing the bench test on the vehicle assembly based on the sensitive use temperature to determine a peak oil temperature threshold of the vehicle assembly, wherein the peak oil temperature threshold is used to represent an oil temperature threshold under which the probability of short-time failure of the vehicle assembly is greater than a preset probability; and performing the bench test on the vehicle assembly based on the preset short-time oil temperature range to determine a short-time oil temperature threshold of the vehicle assembly, wherein the short-time oil temperature threshold is used to represent an oil temperature threshold under which the vehicle assembly meets a preset proportion of the preset vehicle use mileage.

[0007] Optionally, the bench test on the vehicle assembly based on the regular use temperature to determine the long-time oil temperature threshold of the vehicle assembly comprises: controlling the long-time oil temperature threshold to be equal to the regular use temperature to obtain a preset long-time oil temperature threshold, and performing the bench test on the vehicle assembly; in response to the lubricating oil appearing short-time failure, determining a first actual vehicle use mileage corresponding to the preset long-time oil temperature threshold; and determining the long-time oil temperature threshold based on the first actual vehicle use mileage and the preset short-time oil temperature range.

[0008] Optionally, the long-time oil temperature threshold is determined based on the first actual vehicle use mileage and the preset short-time oil temperature range, including: in response to the first actual vehicle use mileage being greater than or equal to the preset vehicle use mileage, controlling the preset long-time oil temperature threshold to increase based on the preset short-time oil temperature range until a first preset condition is met, to obtain a first target long-time oil temperature threshold; and determining the first target long-time oil temperature threshold as the long-time oil temperature threshold.

[0009] Optionally, the long-time oil temperature threshold is determined based on the first actual vehicle use mileage and the preset short-time oil temperature range, including: in response to the first actual vehicle use mileage being less than the preset vehicle use mileage, controlling the preset long-time oil temperature threshold to decrease until a second preset condition is met, to obtain a second target long-time oil temperature threshold; and determining the second target long-time oil temperature threshold as the long-time oil temperature threshold.

[0010] Optionally, the peak oil temperature threshold of the vehicle assembly is determined based on the sensitive use temperature and a bench test of the vehicle assembly, including: controlling the peak oil temperature threshold to be equal to the sensitive use temperature to obtain a preset peak oil temperature threshold, and performing the bench test on the vehicle assembly; in response to the lubricating oil not being short-time failed, determining a second actual vehicle use mileage corresponding to the preset peak oil temperature threshold; and determining the peak oil temperature threshold based on the second actual vehicle use mileage.

[0011] Optionally, in response to the second actual vehicle use mileage being greater than or equal to the preset vehicle use mileage, the preset peak oil temperature threshold is controlled to increase until a third preset condition is met, to obtain a first target peak oil temperature threshold; and the first target peak oil temperature threshold is determined as the peak oil temperature threshold.

[0012] Optionally, in response to the second actual vehicle use mileage being less than the preset vehicle use mileage, the preset peak oil temperature threshold is controlled to decrease until a fourth preset condition is met, to obtain a second target peak oil temperature threshold; and the second target peak oil temperature threshold is determined as the peak oil temperature threshold.

[0013] Optionally, the short-time oil temperature threshold of the vehicle assembly is determined based on the preset short-time oil temperature range and a bench test of the vehicle assembly, including: obtaining a plurality of preset short-time oil temperature thresholds within the preset short-time oil temperature range; performing the bench test on the vehicle assembly based on the plurality of preset short-time oil temperature thresholds; and in response to one of the plurality of preset short-time oil temperature thresholds causing the lubricating oil to be short-time failed, determining the one preset short-time oil temperature threshold as the short-time oil temperature threshold.

[0014] According to another aspect of the embodiments of the present application, a non-volatile storage medium is also provided, which includes a stored program, wherein when the program is running, the processor of the device in which the program is running is controlled to execute the oil temperature threshold determination method of any one of the above.

[0015] According to another aspect of the embodiments of the present application, a vehicle is provided, and the vehicle comprises one or more processors, and a storage device configured to store one or more programs, and when the one or more programs are executed by the one or more processors, the one or more processors perform the oil temperature threshold determination method.

[0016] According to another aspect of the embodiments of the present application, a processor is provided, and the processor is configured to execute a program, and when the program is executed, the oil temperature threshold determination method is performed.

[0017] In the embodiments of the present application, first, a preset use temperature of lubricating oil in a vehicle assembly is obtained, and then a bench test is performed on the vehicle assembly based on the preset use temperature to determine the oil temperature threshold of the vehicle assembly in different oil temperature intervals. Through the above method, the current oil temperature can be reasonably controlled according to the different working temperatures of the lubricating oil in the vehicle assembly, and the oil temperature threshold corresponding to the working temperature interval. The purpose of reasonably controlling the current oil temperature according to the oil temperature threshold corresponding to the different oil temperature intervals is achieved, the technical effect of improving the oil temperature control effect is achieved, and the technical problem of low working efficiency of the vehicle in the related art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and serve to explain the principles of the present application, and are not intended to limit the present application. In the drawings:

[0019] Figure 1 is a flowchart of an oil temperature threshold determination method according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of an oil temperature threshold determination method according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of an oil temperature threshold determination device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0024] Embodiment 1

[0025] According to an embodiment of the present application, a vehicle torque distribution method 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 herein can be executed in an order different from that shown herein.

[0026] Figure 1 is a flowchart of an oil temperature threshold determination method according to an embodiment of the present application, as shown in Figure 1 The method comprises the following steps:

[0027] Step S102, obtaining a preset use temperature of lubricating oil in a vehicle assembly.

[0028] The vehicle assembly can be understood as a combination of several parts, components, assemblies or accessories, and has independent functions of automobile components, which can include but not limited to engine assembly, steering assembly, transmission assembly, front and rear axle, frame, etc. The preset use temperature can be understood as the use temperature of lubricating oil in advance, which can specifically include: normal use temperature, sensitive use temperature and preset short-term oil temperature range.

[0029] Specifically, the functions of lubricating oil in vehicle assembly include but not limited to: cooling, sealing, rust prevention, lubrication, washing, shock absorption, etc.

[0030] In an alternative embodiment, the normal use temperature and the sensitive use temperature in the preset use temperature can be directly obtained from the outer packaging or the use instruction of the lubricating oil. At the same time, considering the heat dissipation capacity of the assembly and the capacity of the bench test equipment, the stability of the oil temperature needs to be specified, so a preset short-term oil temperature range can be set by the user.

[0031] It can be understood that obtaining the preset use temperature of the lubricating oil in the vehicle assembly can quickly find the boundary of the threshold iteration of different oil temperature intervals, and shorten the verification period of subsequent assembly bench tests.

[0032] In step S104, the bench test is performed on the vehicle assembly based on the preset use temperature to determine the oil temperature threshold of the vehicle assembly under different oil temperature intervals.

[0033] The bench test can be understood as a simulated running test on the vehicle assembly, for example, a gasoline engine bench test, a gear oil bench test, etc., and the oil temperature threshold can be understood as the maximum value of the lubricating oil temperature under the condition of ensuring the normal operation of the vehicle assembly.

[0034] In an optional embodiment, the bench test can be performed by testing the performance parameters of the vehicle assembly, for example, if the transmission in the vehicle needs to be bench tested, the transmission efficiency, noise, dynamic stiffness, static torsional strength, fatigue life, etc. Performance parameters of the transmission can be tested.

[0035] It can be understood that determining the oil temperature threshold of the vehicle assembly under different oil temperature intervals can obtain suitable boundary points suitable for assembly use under different oil temperature intervals, and achieve the purpose of reasonably controlling the current oil temperature according to the oil temperature threshold corresponding to different oil temperature intervals, thereby realizing the technical effect of improving the oil temperature control effect.

[0036] Through the above steps, first, the preset use temperature of the lubricating oil in the vehicle assembly is obtained, and then the bench test is performed on the vehicle assembly based on the preset use temperature to determine the oil temperature threshold of the vehicle assembly under different oil temperature intervals. Through the above method, the oil temperature can be reasonably controlled according to the current different working temperature of the lubricating oil in the vehicle assembly, combined with the oil temperature threshold corresponding to the oil temperature interval where the working temperature is located, to achieve the purpose of reasonably controlling the current oil temperature according to the oil temperature threshold corresponding to different oil temperature intervals, thereby realizing the technical effect of improving the oil temperature control effect, and further solving the technical problem of low working efficiency of the vehicle in the related art.

[0037] Optionally, the preset use temperature comprises: a normal use temperature, a sensitive use temperature, and a preset short-time oil temperature range; the bench test is performed on the vehicle assembly based on the preset use temperature, and the oil temperature threshold of the vehicle assembly in different oil temperature intervals is determined, including: performing the bench test on the vehicle assembly based on the normal use temperature, and determining a long-time oil temperature threshold of the vehicle assembly, wherein the long-time oil temperature threshold is used to represent an oil temperature threshold of the vehicle assembly meeting a preset vehicle use mileage; performing the bench test on the vehicle assembly based on the sensitive use temperature, and determining a peak oil temperature threshold of the vehicle assembly, wherein the peak oil temperature threshold is used to represent an oil temperature threshold of the vehicle assembly having a probability of short-time failure greater than a preset probability; and performing the bench test on the vehicle assembly based on the preset short-time oil temperature range, and determining a short-time oil temperature threshold of the vehicle assembly, wherein the short-time oil temperature threshold is used to represent an oil temperature threshold of the vehicle assembly meeting a preset proportion of the preset vehicle use mileage.

[0038] The normal use temperature can be understood as a use temperature of lubricating oil in a general case to ensure normal operation of the vehicle assembly, the sensitive use temperature can be understood as a use temperature that can cause operation failure of the vehicle assembly, if the temperature of the lubricating oil exceeds the sensitive use temperature, the vehicle assembly is likely to fail, the preset short-time oil temperature range can be understood as an oil temperature range in different intervals of short-time oil temperature that is preset in advance, the long-time oil temperature threshold can be understood as an oil temperature threshold at which the vehicle assembly can work for a long time to meet the development index of the vehicle use mileage, the preset vehicle use mileage can be understood as a use mileage index preset in advance before the vehicle is developed, the peak oil temperature threshold can be understood as a temperature threshold at which the oil temperature of the vehicle assembly has a high probability of short-time failure and cannot continue to work, the short-time failure can be understood as a failure of the vehicle assembly in a short time, and the preset probability can be understood as a value preset in advance, which can be considered as a probability of short-time failure of the vehicle, the short-time oil temperature threshold can be understood as an oil temperature threshold at which the vehicle assembly can meet a certain proportion of the development index of the vehicle use mileage, and the specific proportion needs to be further determined through the bench test, and the preset proportion can be understood as a proportion preset in advance, at which the vehicle assembly can meet the preset vehicle use mileage.

[0039] In an optional embodiment, the reasons for short-time failure can include, but are not limited to, deterioration of lubricating oil, oil seal oil leakage, and the like.

[0040] It can be understood that, according to the preset use temperature under different conditions, the oil temperature threshold of the vehicle assembly in different oil temperature intervals is determined, which can provide accurate boundaries for subsequent oil temperature control, and the purpose of reasonably controlling the current oil temperature according to the oil temperature threshold corresponding to different oil temperature intervals is achieved, thereby achieving the technical effect of improving the oil temperature control effect.

[0041] Optionally, the long-time oil temperature threshold of the vehicle assembly is determined based on a bench test of the vehicle assembly at a regular use temperature, including: controlling the long-time oil temperature threshold to be equal to the regular use temperature, and performing the bench test on the vehicle assembly; in response to short-time failure of the lubricating oil, determining a first actual vehicle use mileage corresponding to the preset long-time oil temperature threshold; and determining the long-time oil temperature threshold based on the first actual vehicle use mileage and the preset short-time oil temperature range.

[0042] The preset long-time oil temperature threshold can be understood as an oil temperature threshold that is the same as the value of the regular use temperature and is preset in advance, and the first actual vehicle use mileage can be understood as a mileage actually traveled by the vehicle assembly when the short-time failure occurs at the preset long-time oil temperature threshold.

[0043] In an optional embodiment, the first actual vehicle use mileage can be determined by a mileage meter on an instrument panel in front of a driver's seat of the vehicle.

[0044] It can be understood that, since the vehicle assembly can work for a long time at the long-time oil temperature threshold to meet the development index of the vehicle use mileage, and the regular use temperature can meet this requirement, the long-time oil temperature threshold can be set to the regular use temperature of the lubricating oil first in the process of determining the long-time oil temperature threshold, and then the bench test is performed on the vehicle assembly, and the long-time oil temperature threshold is adjusted according to the actual situation when the vehicle assembly fails, so as to obtain an accurate long-time oil temperature threshold.

[0045] Optionally, the long-time oil temperature threshold is determined based on the first actual vehicle use mileage, including: in response to the first actual vehicle use mileage being greater than or equal to a preset vehicle use mileage, increasing the preset long-time oil temperature threshold based on the preset short-time oil temperature range until a first preset condition is met, to obtain a first target long-time oil temperature threshold; and determining the first target long-time oil temperature threshold as the long-time oil temperature threshold.

[0046] The first preset condition can be understood as a condition that is preset in advance and limits the maximum value of the long-time oil temperature threshold when the vehicle assembly does not fail, and the first target long-time oil temperature threshold can be understood as an oil temperature threshold obtained by adjusting the preset long-time oil temperature threshold based on the preset short-time oil temperature range.

[0047] It can be understood that, if the first actual vehicle use mileage is greater than or equal to the preset vehicle use mileage, it indicates that the preset long-time oil temperature threshold at this time is too small for the vehicle assembly, and the preset long-time oil temperature threshold can be increased based on the preset short-time oil temperature range until the first preset condition is met, and the oil temperature threshold obtained at this time is the long-time oil temperature threshold.

[0048] It should be noted that if the preset long-time oil temperature threshold is too large, the vehicle assembly temperature may be too high, which cannot be cooled in time, resulting in vehicle assembly operation failure. Therefore, the preset long-time oil temperature threshold needs to be adjusted based on the preset short-time oil temperature range to prevent the oil temperature from being too high.

[0049] Optionally, based on the first actual vehicle use mileage and the preset short-time oil temperature range, the long-time oil temperature threshold is determined, including: in response to the first actual vehicle use mileage being less than the preset vehicle use mileage, controlling the preset long-time oil temperature threshold to decrease until a second preset condition is met, to obtain a second target long-time oil temperature threshold; and determining the second target long-time oil temperature threshold as the long-time oil temperature threshold.

[0050] The second preset condition can be understood as a condition for limiting the minimum value of the long-time oil temperature threshold when ensuring that the vehicle assembly does not fail, and the second target long-time oil temperature threshold can be understood as an oil temperature threshold obtained by adjusting the preset long-time oil temperature threshold based on the second preset condition.

[0051] It can be understood that if the first actual vehicle use mileage is less than the preset vehicle use mileage, the preset long-time oil temperature threshold is too large for the vehicle assembly, and the preset long-time oil temperature threshold can be decreased until the second preset condition is met. The oil temperature threshold obtained at this time is the long-time oil temperature threshold.

[0052] It should be noted that if the preset long-time oil temperature threshold is too small, the power of the vehicle assembly may be insufficient. Therefore, the preset long-time oil temperature threshold needs to be adjusted based on the second preset condition to prevent the oil temperature from being too low.

[0053] Specifically, taking the drive axle GL-5 heavy-duty gear oil as an example, the above process of determining the long-time oil temperature threshold can be understood as follows: assuming that the mileage target of the whole vehicle development is N kilometers, the assembly is subjected to a strengthening load spectrum, and a bench test is performed for verification. The long-time oil temperature threshold is represented by T0, the conventional use temperature is represented by T 00 , the preset short-time oil temperature range is represented by (T k -T k-1 ), T0 is first set to T 00 , an equal-damage strengthening bench test is performed, the actual mileage corresponding to the failure is N0, at this time the long-time oil temperature coefficient of the lubricating oil a = N0 / N, if N0≥N, continue to increase T0, set T0=T0+(T k -T k-1 ), or set T0=T0-(T k -T k-1 ), otherwise, if N0<N, continue to decrease T0 until a approaches 1, at this time T0 is the long-time oil temperature threshold T 00 .

[0054] Optionally, the bench test is performed on the vehicle assembly based on the sensitive use temperature, and the peak oil temperature threshold of the vehicle assembly is determined, including: controlling the peak oil temperature threshold to be equal to the sensitive use temperature to obtain a preset peak oil temperature threshold, and performing the bench test on the vehicle assembly; in response to the lubricating oil not being short-time failed, determining a second actual vehicle use mileage corresponding to the preset peak oil temperature threshold; and determining the peak oil temperature threshold based on the second actual vehicle use mileage.

[0055] The preset peak oil temperature threshold can be understood as an oil temperature threshold that is the same as the value of the sensitive use temperature and is preset in advance, and the second actual vehicle use mileage can be understood as a mileage actually traveled by the vehicle assembly under the preset peak oil temperature threshold without short-time failure.

[0056] In an optional embodiment, the second actual vehicle use mileage can be determined by a mileage meter on an instrument panel in front of a driver's seat of the vehicle.

[0057] It can be understood that, since the vehicle assembly has a high probability of short-time failure under the peak oil temperature threshold, and the sensitive use temperature can meet this condition, in the process of determining the peak oil temperature threshold, the peak oil temperature threshold can be first set as the sensitive use temperature of the lubricating oil, and then the bench test is performed on the vehicle assembly, and if the vehicle assembly does not appear short-time failure, the peak oil temperature threshold is adjusted according to the actual situation, so as to obtain an accurate peak oil temperature threshold.

[0058] Optionally, the peak oil temperature threshold is determined based on the second actual vehicle use mileage, including: in response to the second actual vehicle use mileage being greater than or equal to a preset vehicle use mileage, increasing the preset peak oil temperature threshold based on a preset short-time oil temperature range until a third preset condition is met to obtain a first target peak oil temperature threshold; and determining the first target peak oil temperature threshold as the peak oil temperature threshold.

[0059] The third preset condition can be understood as a condition that is preset in advance and limits the maximum value of the peak oil temperature threshold to ensure that the vehicle assembly does not fail, and the first target peak oil temperature threshold can be understood as an oil temperature threshold obtained by adjusting the preset peak oil temperature threshold based on the preset short-time oil temperature range.

[0060] It can be understood that, if the second actual vehicle use mileage is greater than or equal to the preset vehicle use mileage, it means that the preset peak oil temperature threshold at this time is too small for the vehicle assembly, and the preset peak oil temperature threshold can be increased based on the preset short-time oil temperature range until the third preset condition is met, and the oil temperature threshold obtained at this time is the peak oil temperature threshold.

[0061] It should be noted that if the preset peak oil temperature threshold is too high, it may cause the vehicle assembly temperature to be too high, which may lead to failure of the vehicle assembly due to the inability to dissipate heat in time. Therefore, the preset peak oil temperature threshold needs to be adjusted based on the preset short-term oil temperature range to prevent the oil temperature from being too high.

[0062] Optionally, based on the second actual vehicle mileage, the peak oil temperature threshold is determined, including: in response to the second actual vehicle mileage being less than the preset vehicle mileage, controlling the preset peak oil temperature threshold to decrease until the fourth preset condition is met, to obtain the second target peak oil temperature threshold; and determining the second target peak oil temperature threshold as the peak oil temperature threshold.

[0063] The fourth preset condition can be understood as a pre-set condition that limits the minimum value of the peak oil temperature threshold while ensuring that the vehicle assembly does not malfunction. The second target peak oil temperature threshold can be understood as the oil temperature threshold obtained by adjusting the preset peak oil temperature threshold based on the fourth preset condition.

[0064] It is understandable that if the second actual vehicle mileage is less than the preset vehicle mileage, it means that the preset peak oil temperature threshold is too high for the vehicle assembly. The preset peak oil temperature threshold can be reduced until the fourth preset condition is met. The oil temperature threshold obtained at this time is the peak oil temperature threshold.

[0065] It should be noted that if the preset peak oil temperature threshold is too low, it may cause insufficient power in the vehicle assembly. Therefore, the preset peak oil temperature threshold needs to be adjusted based on the fourth preset condition to prevent the oil temperature from being too low.

[0066] Specifically, taking the GL-5 heavy-duty gear oil for the drive axle as an example, the process of determining the peak oil temperature threshold can be understood as follows: assuming the target mileage for vehicle development is N kilometers, a reinforced load spectrum is applied to the assembly, and bench tests are conducted for verification. The peak oil temperature threshold is represented by T. n Indicates that the sensitive operating temperature is represented by T. nn This indicates that the preset short-term oil temperature range is represented by (T). k -T k-1 ) indicates that T should be allowed to proceed first. n =T nn The actual mileage corresponding to the absence of failure during the equal damage strengthening bench test is N. n At this time, the peak oil temperature coefficient of the lubricating oil is b = N. n / N, if N n If N ≥ N, then continue to increase T. n T n =T n +(T k -T k-1 ), or let T n =T n -(Tk T k-1 , otherwise, if N n < N, continue to decrease T n until a approaches 0, at which time T n is the peak oil temperature threshold T nn .

[0067] Optionally, the short-time oil temperature threshold of the vehicle assembly is determined based on the preset short-time oil temperature range through a bench test of the vehicle assembly, including: obtaining a plurality of preset short-time oil temperature thresholds within the preset short-time oil temperature range; performing a bench test of the vehicle assembly based on the plurality of preset short-time oil temperature thresholds; determining one of the plurality of preset short-time oil temperature thresholds as the short-time oil temperature threshold in response to the lubricating oil failing at the one of the plurality of preset short-time oil temperature thresholds.

[0068] The plurality of preset short-time oil temperature thresholds can be understood as a plurality of values selected at random within the preset short-time oil temperature range.

[0069] In an optional embodiment, the plurality of preset short-time oil temperature thresholds can be a plurality of values selected at random around the median value of the preset short-time oil temperature range, which is not limited by the present application and can be modified according to actual needs.

[0070] It can be understood that, since the vehicle assembly can meet a certain proportion of the preset vehicle mileage at the short-time oil temperature threshold, in the process of determining the short-time oil temperature threshold, a plurality of preset short-time oil temperature thresholds can be obtained within the preset short-time oil temperature range, and then the vehicle assembly can be tested respectively using the plurality of preset short-time oil temperature thresholds, and if the vehicle assembly fails, the preset short-time oil temperature threshold at this time can be determined as the short-time oil temperature threshold.

[0071] Specifically, taking the drive axle GL-5 heavy-duty gear oil as an example, the process of determining the short-time oil temperature threshold can be understood as follows: through the bench test, the oil temperature is controlled to be around the median value of T k-1 and T k , and when the failure occurs, the oil temperature threshold at this time is the short-time oil temperature threshold. The equivalent mileage at this time is recorded and converted into the actual mileage N k (k = 1, 2, 3, … n-1), and the remaining mileage of the vehicle assembly can be calculated. The failure includes a large change in the composition of the lubricating oil or the occurrence of an odor, oil leakage of the oil seal, and obvious abnormal vibration of the assembly.

[0072] Figure 2 is a schematic diagram of an oil temperature threshold determination method according to an embodiment of the present application, as shown in Figure 2 , and the specific process is as follows: first, the conventional use temperature T 00 and the sensitive use temperature T nnand the whole vehicle development target mileage N, then the long-time oil temperature threshold and the peak oil temperature threshold are calculated respectively through the bench test, and finally the short-time oil temperature threshold is determined, wherein the long-time oil temperature threshold can be determined through the following process: first, let T0=T 00 , and then the actual failure mileage N0 is determined, if N0≥N, let T0=T0+(T k -T k-1 ), or let T0=T0-(T k -T k-1 ), otherwise, if N0<N, continue to reduce T0 until N0 / N is close to 1, and T0 at this time is the long-time oil temperature threshold T 00 , the peak oil temperature threshold can be determined through the following process: first, let T n =T nn , and then the actual failure mileage N n is determined, if N n ≥N, let T n =T n +(T k -T k-1 ), or let T n =T n -(T k -T k-1 ), otherwise, if N n <N, continue to reduce T n until N0 / N is close to 0, and T n at this time is the long-time oil temperature threshold T nn , the short-time oil temperature threshold can be determined through the following process: control the oil temperature T≈(T k -T k-1 ) / 2, and T 00 <T<T nn， , when the failure occurs, record the actual failure mileage N k , and the oil temperature threshold at this time is the short-time oil temperature threshold, and then the subsequent oil temperature control strategy or the remaining life can be determined.

[0073] Embodiment 2

[0074] According to another aspect of the embodiment of the application, an oil temperature threshold determination device is also provided, which can execute the oil temperature threshold determination method in the above-mentioned embodiment 1, and the specific implementation scheme and application scene in the embodiment are the same as those in the above-mentioned embodiment 1, which will not be repeated here.

[0075] Figure 3 is a schematic diagram of an oil temperature threshold determination device according to an embodiment of the application, as Figure 3As shown, the apparatus comprises: a temperature acquisition module 302, configured to acquire a preset use temperature of lubricating oil in a vehicle assembly; a threshold determination module 304, configured to determine an oil temperature threshold of the vehicle assembly under different oil temperature intervals based on the bench test of the vehicle assembly based on the preset use temperature.

[0076] The threshold determination module 304 comprises: a first threshold determination unit, configured to determine a long-time oil temperature threshold of the vehicle assembly based on the bench test of the vehicle assembly based on the regular use temperature, wherein the long-time oil temperature threshold is used to represent an oil temperature threshold for the vehicle assembly to meet a preset vehicle use mileage; a second threshold determination unit, configured to determine a peak oil temperature threshold of the vehicle assembly based on the bench test of the vehicle assembly based on the sensitive use temperature, wherein the peak oil temperature threshold is used to represent an oil temperature threshold for the vehicle assembly to have a probability of short-time failure greater than a preset probability; and a third threshold determination unit, configured to determine a short-time oil temperature threshold of the vehicle assembly based on the bench test of the vehicle assembly based on the preset short-time oil temperature range, wherein the short-time oil temperature threshold is used to represent an oil temperature threshold for the vehicle assembly to meet a preset proportion of the preset vehicle use mileage.

[0077] The first threshold determination unit comprises: a first temperature control subunit, configured to control the long-time oil temperature threshold to be equal to the regular use temperature to obtain a preset long-time oil temperature threshold, and perform the bench test on the vehicle assembly; a first mileage determination subunit, configured to determine a first actual vehicle use mileage corresponding to the preset long-time oil temperature threshold in response to the lubricating oil having short-time failure; and a first threshold determination subunit, configured to determine the long-time oil temperature threshold based on the first actual vehicle use mileage and the preset short-time oil temperature range.

[0078] The first threshold determination subunit can be implemented by the following process: in response to the first actual vehicle use mileage being greater than or equal to the preset vehicle use mileage, increasing the preset long-time oil temperature threshold based on the preset short-time oil temperature range until a first preset condition is met to obtain a first target long-time oil temperature threshold; and determining the first target long-time oil temperature threshold as the long-time oil temperature threshold.

[0079] The first threshold determination subunit can also be implemented by the following process: in response to the first actual vehicle use mileage being less than the preset vehicle use mileage, decreasing the preset long-time oil temperature threshold until a second preset condition is met to obtain a second target long-time oil temperature threshold; and determining the second target long-time oil temperature threshold as the long-time oil temperature threshold.

[0080] The second threshold determination unit comprises: a second temperature control subunit, configured to control the peak oil temperature threshold to be equal to the sensitive use temperature to obtain a preset peak oil temperature threshold, and perform the bench test on the vehicle assembly; a second mileage determination subunit, configured to determine a second actual vehicle use mileage corresponding to the preset peak oil temperature threshold in response to the lubricating oil not having short-time failure; and a second threshold determination subunit, configured to determine the peak oil temperature threshold based on the second actual vehicle use mileage.

[0081] The second threshold determination subunit can be implemented by the following process: in response to the second actual vehicle use mileage being greater than or equal to the preset vehicle use mileage, increasing the preset peak oil temperature threshold based on the preset short-time oil temperature range until a third preset condition is met to obtain a first target peak oil temperature threshold; and determining the first target peak oil temperature threshold as the peak oil temperature threshold.

[0082] The second threshold determination subunit can also be implemented by the following process: in response to the second actual vehicle use mileage being less than the preset vehicle use mileage, decreasing the preset peak oil temperature threshold until a fourth preset condition is met to obtain a second target peak oil temperature threshold; and determining the second target peak oil temperature threshold as the peak oil temperature threshold.

[0083] The third threshold determination unit includes: a threshold acquisition subunit, configured to acquire a plurality of preset short-time oil temperature thresholds within a preset short-time oil temperature range; a test subunit, configured to perform a bench test on a vehicle assembly based on the plurality of preset short-time oil temperature thresholds; and a third threshold determination subunit, configured to determine one of the plurality of preset short-time oil temperature thresholds as a short-time oil temperature threshold in response to the one of the plurality of preset short-time oil temperature thresholds causing short-time failure of lubricating oil.

[0084] Embodiment 3

[0085] According to another aspect of the embodiments of the present application, a non-volatile storage medium is also provided, characterized in that the non-volatile storage medium comprises a stored program, wherein when the program is running, the processor of the device in which the program is running is controlled to execute the oil temperature threshold determination method of any one of the above.

[0086] Embodiment 4

[0087] According to another aspect of the embodiments of the present application, a vehicle is also provided, characterized in that it comprises: one or more processors; and a storage device configured to store one or more programs; and when the one or more programs are executed by the one or more processors, the one or more processors are caused to execute the oil temperature threshold determination method of any one of the above.

[0088] Embodiment 5

[0089] According to another aspect of the embodiments of the present application, a processor is also provided, the processor being configured to execute a program, wherein when the program is running, the oil temperature threshold determination method is executed.

[0090] The above-mentioned embodiment numbers of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0091] In the above-mentioned embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0092] In several embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other manners. For example, the described unit embodiments are merely schematic, and the division of units can be different from the above. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections can be indirect couplings or communication connections through some interfaces, and electrical or other forms.

[0093] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple units. Some or all of the units can be selected according to actual needs to achieve the purposes of the embodiments.

[0094] In addition, each functional unit in the various embodiments of the present application can be integrated in a processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0095] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application, essentially or the part that contributes to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes several instructions for causing 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 methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various media that can store program codes.

[0096] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, several improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. An oil temperature threshold determination method, characterized by, The method comprises: obtaining a preset use temperature of lubricating oil in a vehicle assembly; performing a bench test on the vehicle assembly based on the preset use temperature to determine an oil temperature threshold of the vehicle assembly under different oil temperature intervals; the preset use temperature comprises a normal use temperature, a sensitive use temperature and a preset short-time oil temperature range, and performing a bench test on the vehicle assembly based on the preset use temperature to determine an oil temperature threshold of the vehicle assembly under different oil temperature intervals comprises: performing a bench test on the vehicle assembly based on the normal use temperature to determine a long-time oil temperature threshold of the vehicle assembly, wherein the long-time oil temperature threshold is used to represent an oil temperature threshold under which the vehicle assembly meets a preset vehicle use mileage; performing a bench test on the vehicle assembly based on the sensitive use temperature to determine a peak oil temperature threshold of the vehicle assembly, wherein the peak oil temperature threshold is used to represent an oil temperature threshold under which the vehicle assembly has a probability of short-time failure greater than a preset probability; performing a bench test on the vehicle assembly based on the preset short-time oil temperature range to determine a short-time oil temperature threshold of the vehicle assembly, wherein the short-time oil temperature threshold is used to represent an oil temperature threshold under which the vehicle assembly meets a preset proportion of the preset vehicle use mileage; performing a bench test on the vehicle assembly based on the normal use temperature to determine a long-time oil temperature threshold of the vehicle assembly comprises: controlling the long-time oil temperature threshold to be equal to the normal use temperature to obtain a preset long-time oil temperature threshold, and performing a bench test on the vehicle assembly; in response to the lubricating oil having the short-time failure, determining a first actual vehicle use mileage corresponding to the preset long-time oil temperature threshold; determining the long-time oil temperature threshold based on the first actual vehicle use mileage and the preset short-time oil temperature range; performing a bench test on the vehicle assembly based on the sensitive use temperature to determine a peak oil temperature threshold of the vehicle assembly comprises: controlling the peak oil temperature threshold to be equal to the sensitive use temperature to obtain a preset peak oil temperature threshold, and performing a bench test on the vehicle assembly; in response to the lubricating oil not having the short-time failure, determining a second actual vehicle use mileage corresponding to the preset peak oil temperature threshold; determining the peak oil temperature threshold based on the second actual vehicle use mileage; wherein performing a bench test on the vehicle assembly based on the preset short-time oil temperature range to determine a short-time oil temperature threshold of the vehicle assembly comprises: obtaining a plurality of preset short-time oil temperature thresholds within the preset short-time oil temperature range; performing a bench test on the vehicle assembly based on the plurality of preset short-time oil temperature thresholds; in response to one of the plurality of preset short-time oil temperature thresholds causing the lubricating oil to have the short-time failure, determining the one preset short-time oil temperature threshold as the short-time oil temperature threshold; wherein performing a bench test on the vehicle assembly based on the preset short-time oil temperature range to determine a short-time oil temperature threshold of the vehicle assembly comprises: obtaining a plurality of preset short-time oil temperature thresholds within the preset short-time oil temperature range; performing a bench test on the vehicle assembly based on the plurality of preset short-time oil temperature thresholds; In response to the lubricating oil being caused to be short-time invalid in response to one of the plurality of preset short-time oil temperature thresholds, the one of the plurality of preset short-time oil temperature thresholds is determined as the short-time oil temperature threshold.

2. The oil temperature threshold determination method according to claim 1, characterized by, The long-time oil temperature threshold is determined based on the first actual vehicle use mileage and the preset short-time oil temperature range, including: In response to the first actual vehicle use mileage being greater than or equal to the preset vehicle use mileage, the preset long-time oil temperature threshold is controlled to increase based on the preset short-time oil temperature range until a first preset condition is met, to obtain a first target long-time oil temperature threshold; The first target long-time oil temperature threshold is determined as the long-time oil temperature threshold.

3. The oil temperature threshold determination method according to claim 2, characterized by, The long-time oil temperature threshold is determined based on the first actual vehicle use mileage and the preset short-time oil temperature range, including: In response to the first actual vehicle use mileage being less than the preset vehicle use mileage, the preset long-time oil temperature threshold is controlled to decrease until a second preset condition is met, to obtain a second target long-time oil temperature threshold; The second target long-time oil temperature threshold is determined as the long-time oil temperature threshold.

4. The oil temperature threshold determination method according to claim 1, characterized by, The peak oil temperature threshold is determined based on the second actual vehicle use mileage, including: In response to the second actual vehicle use mileage being greater than or equal to a preset vehicle use mileage, the preset peak oil temperature threshold is controlled to increase based on the preset short-time oil temperature range until a third preset condition is met, to obtain a first target peak oil temperature threshold; The first target peak oil temperature threshold is determined as the peak oil temperature threshold.

5. The oil temperature threshold determination method according to claim 1, characterized by, The peak oil temperature threshold is determined based on the second actual vehicle use mileage, including: In response to the second actual vehicle use mileage being less than the preset vehicle use mileage, the preset peak oil temperature threshold is controlled to decrease until a fourth preset condition is met, to obtain a second target peak oil temperature threshold; The second target peak oil temperature threshold is determined as the peak oil temperature threshold.

6. A vehicle characterized by comprising: including: one or more processors; a storage device for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors perform the oil temperature threshold determination method of any one of claims 1 to 5.

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