Universal joint oil leakage judgment method and device, electronic equipment and storage medium

Abstract

This invention provides a method, device, electronic device, and storage medium for determining universal joint oil leakage, relating to the field of vehicle universal joints. By acquiring the real-time temperature of the universal joint and the real-time ambient temperature during the acquisition period, the highest and lowest temperatures of the universal joint within the acquisition period are determined. The cumulative duration of the high-temperature range is determined based on the highest universal joint temperature, and the cumulative duration of the low-temperature range is determined based on the lowest universal joint temperature. The cumulative duration of the average ambient temperature is determined based on the real-time ambient temperature. Based on the relationship between the highest universal joint temperature and a first preset temperature, the relationship between the lowest universal joint temperature and a second preset temperature, and the proportion of the cumulative duration of the low-temperature range, it is determined whether there is a preliminary risk of oil leakage in the universal joint. If so, the rotational speed of the corresponding structure of the universal joint and the steering wheel angle are acquired, and the risk of oil leakage is determined based on the magnitude of the rotational speed and the magnitude of the steering wheel angle. This allows for accurate determination of whether there is a risk of oil leakage in the universal joint.

Description

Technical Field

[0001] This invention relates to the field of vehicle universal joints, and more specifically, to a method, apparatus, electronic device, and storage medium for determining universal joint oil leakage. Background Technology

[0002] To ensure that low-temperature oil leakage of universal joints does not occur in users' vehicles, the current verification methods used are bench tests and whole-vehicle tests. These tests are conducted before the vehicles leave the factory. However, the operating conditions of vehicles in the factory are limited and cannot fully cover the operating conditions of users' vehicles, nor can they make an accurate judgment on oil leakage during vehicle use. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a method, apparatus, electronic device and storage medium for judging universal joint oil leakage in order to at least partially improve the above-mentioned problems.

[0004] To achieve the above objectives, the technical solutions adopted in the embodiments of the present invention are as follows:

[0005] In a first aspect, embodiments of the present invention provide a method for determining oil leakage in a universal joint, the method comprising:

[0006] Acquire the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the data acquisition period;

[0007] The maximum and minimum temperatures of the universal joint are determined based on the real-time temperature of the universal joint; the maximum temperature of the universal joint represents the highest temperature value obtained within the universal joint during the acquisition period; the minimum temperature of the universal joint represents the lowest temperature value obtained within the universal joint during the acquisition period.

[0008] The cumulative duration of the high-temperature range is determined based on the highest temperature of the universal joint, and the cumulative duration of the low-temperature range is determined based on the lowest temperature of the universal joint. The cumulative duration of the average ambient temperature is determined based on the real-time ambient temperature. The cumulative duration of the high-temperature range represents the cumulative duration during which the collected temperature is within the temperature range corresponding to the highest temperature of the universal joint. The cumulative duration of the low-temperature range represents the cumulative duration during which the collected temperature is within the temperature range corresponding to the lowest temperature of the universal joint. The cumulative duration of the average ambient temperature represents the cumulative duration during which the real-time ambient temperature is within the temperature range corresponding to the average ambient temperature.

[0009] Based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative duration of the low temperature range, it is determined whether the universal joint has a preliminary risk of oil leakage.

[0010] If so, obtain the rotational speed of the universal joint and the steering wheel angle, and determine whether the universal joint has a risk of oil leakage based on the magnitude of the rotational speed and the magnitude of the steering wheel angle.

[0011] Optionally, before acquiring the real-time temperature of the gimbal and the real-time ambient temperature corresponding to the acquisition period, the method further includes:

[0012] Collect real-time ambient temperature over a preset time period to determine the average ambient temperature.

[0013] Optionally, the step of determining whether there is an initial risk of oil leakage in the universal joint based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative duration of the low-temperature range includes:

[0014] When the conditions T1≥a*T01, T2≤b*T02 and t2 / (t1+t2+t3)≥c are met, it is determined that the universal joint has a preliminary risk of oil leakage.

[0015] Wherein, T1 is the highest temperature of the universal joint, T2 is the lowest temperature of the universal joint, t1 is the cumulative duration of the high temperature range, t2 is the cumulative duration of the low temperature range, t3 is the cumulative duration of the average ambient temperature, T01 is the first preset temperature, T02 is the second preset temperature, a is a proportionality coefficient used to characterize whether T1 exceeds T01 by a certain proportion, b is a proportionality coefficient used to characterize whether T2 is less than T02 by a certain proportion, and c is a proportionality coefficient.

[0016] Optionally, the step of determining whether there is a risk of oil leakage in the universal joint based on the rotational speed and the steering wheel angle includes:

[0017] When α / 2π>1 and r / r0>1, the gimbal is determined to have leakage and is at risk.

[0018] Where α is the steering wheel angle, r is the rotation speed, and r0 is the preset rotation speed.

[0019] Optionally, the steps for obtaining the cumulative duration of the high-temperature range, the cumulative duration of the low-temperature range, and the cumulative duration of the average ambient temperature include:

[0020] The cumulative duration of obtaining the temperature within ±5℃ of the highest temperature of the universal joint is the cumulative duration of the high temperature range;

[0021] The cumulative duration of obtaining the temperature within ±5℃ of the lowest temperature of the universal joint is the cumulative duration of the low temperature range;

[0022] The cumulative duration of temperature within the range of ±5℃ of the average ambient temperature is the cumulative duration of the average ambient temperature.

[0023] Optionally, the first preset temperature range is 85℃~110℃, and the second preset temperature range is -30℃~-45℃.

[0024] Optionally, the preset rotation speed ranges from 15 rpm to 40 rpm.

[0025] Secondly, embodiments of the present invention provide a universal joint oil leakage detection device, the universal joint oil leakage detection device comprising:

[0026] The real-time temperature acquisition unit is used to acquire the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the acquisition period.

[0027] A temperature determination unit is used to determine the highest temperature and the lowest temperature of the universal joint based on the real-time temperature of the universal joint; the highest temperature of the universal joint represents the highest value of the collected temperature within the universal joint obtained during the collection period; the lowest temperature of the universal joint represents the lowest value of the collected temperature within the universal joint obtained during the collection period.

[0028] The cumulative duration determination unit is used to determine the cumulative duration of the high-temperature range based on the highest temperature of the universal joint, and the cumulative duration of the low-temperature range based on the lowest temperature of the universal joint, and to determine the cumulative duration of the average ambient temperature based on the real-time ambient temperature; the cumulative duration of the high-temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the highest temperature of the universal joint; the cumulative duration of the low-temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the lowest temperature of the universal joint; and the cumulative duration of the average ambient temperature represents the cumulative duration of the real-time ambient temperature being within the temperature range corresponding to the average ambient temperature.

[0029] The preliminary judgment unit allows the user to determine whether the universal joint has a preliminary risk of oil leakage based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative duration of the low temperature range.

[0030] The judgment unit is used to obtain the rotational speed of the universal joint and the steering wheel angle of the corresponding structure if the condition is met, and to determine whether the universal joint has a risk of oil leakage based on the magnitude of the rotational speed and the magnitude of the steering wheel angle.

[0031] Thirdly, embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method described in any of the above-mentioned embodiments.

[0032] Fourthly, embodiments of the present invention provide a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method described in any of the preceding claims.

[0033] This invention provides a method, device, electronic device, and storage medium for determining universal joint oil leakage. By collecting the highest temperature, lowest temperature, and average ambient temperature of the universal joint within a given time period, and then determining the cumulative duration of the highest temperature, lowest temperature, and average ambient temperature within the collection period, the method determines whether the universal joint has a preliminary risk of oil leakage based on the relationship between the highest temperature and a first preset temperature, the relationship between the lowest temperature and a second preset temperature, and the proportion of the cumulative duration in the low-temperature range. If so, the method obtains the rotational speed of the corresponding structure of the universal joint and the steering wheel angle, and determines whether the universal joint has a risk of oil leakage based on the magnitude of the rotational speed and the magnitude of the steering wheel angle. This method can accurately determine whether the universal joint has a risk of oil leakage. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of an electronic device provided in an embodiment of the present invention;

[0036] Figure 2 A flowchart illustrating a method for determining oil leakage in a universal joint, as provided in an embodiment of the present invention;

[0037] Figure 3 This is another flowchart illustrating a method for determining oil leakage in a universal joint, as provided in an embodiment of the present invention.

[0038] Figure 4 This is another flowchart illustrating a method for determining oil leakage in a universal joint, as provided in an embodiment of the present invention.

[0039] Figure 5 This is a schematic diagram of a universal joint oil leakage detection device provided in an embodiment of the present invention. Legend: 100-Electronic device; 101-Memory; 102-Communication interface; 103-Processor; 104-Bus; 300-Universal joint oil leakage detection device; 310-Real-time temperature acquisition unit; 320-Temperature determination unit; 330-Cumulative duration determination unit; 340-Preliminary judgment unit; 350-Judgment unit. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0042] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] In the existing technology, in order to ensure that the problem of low-temperature oil leakage of universal joints does not occur in user vehicles, the current verification method is to use bench tests and whole vehicle tests. That is, various working conditions during vehicle use are simulated in the factory to verify whether there is an oil leakage problem in the universal joint. However, this method can only check a limited range of working conditions and cannot fully detect the problem of oil leakage in the universal joint, nor can it make a judgment on the oil leakage problem during vehicle use.

[0045] Based on the above, embodiments of the present invention provide a method, device, electronic device, and storage medium for judging universal joint oil leakage. By collecting data on the highest temperature, lowest temperature, cumulative duration of the highest temperature, cumulative duration of the lowest temperature, average ambient temperature, cumulative duration of the average ambient temperature, rotational speed of the universal joint structure, and steering wheel angle during the user's vehicle use, and then analyzing and processing the above data, it is possible to determine whether there is a risk of oil leakage in the universal joint.

[0046] To implement the process steps and functions of the various examples of this invention, please refer to [link / reference]. Figure 1 , Figure 1 This is a schematic structural block diagram of an electronic device provided in an embodiment of the present invention. The electronic device 100 includes a memory 101 and a processor 103, which are electrically connected directly or indirectly to each other to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses 104 or signal lines. The memory 101 can be used to store software programs and modules, and the processor 103 executes the software programs and modules stored in the memory 101 to perform various functional applications and data processing.

[0047] Electronic device 100 can be, but is not limited to, a personal computer (PC), a server, a distributed computer, etc. It is understood that electronic device 100 is not limited to a physical server, but can also be a virtual machine on a physical server, a virtual machine built on a cloud platform, or any other computer that can provide the same functionality as the server or virtual machine. The operating system of electronic device 100 can be, but is not limited to, Windows, Linux, etc.

[0048] The memory 101 is used to store programs. After receiving an execution instruction, the processor 103 executes the programs to implement a universal joint oil leakage judgment method disclosed in this embodiment of the invention.

[0049] The memory 101 may be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0050] The communication connection between the electronic device 100 and external devices is achieved through at least one communication interface 102 (which can be wired or wireless).

[0051] Processor 103 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of this embodiment can be completed by integrated logic circuits in the hardware of processor 103 or by instructions in software form. Processor 103 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0052] Understandable. Figure 1 The structure shown is for illustrative purposes only; the electronic device 100 may also include components that are more advanced than those shown. Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown. Figure 1 The components shown can be implemented using hardware, software, or a combination thereof.

[0053] The following is a practical example illustrating the universal joint oil leakage detection method provided by this invention. Specifically, Figure 2 This is a schematic flowchart of a universal joint oil leakage detection method provided in an embodiment of the present invention. (See attached diagram.) Figure 2 The subject executing this method can be one of the above. Figure 1 The electronic device 100 shown, the method includes as follows Figure 2 The following steps are described:

[0054] Step S210: Obtain the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the data collection period.

[0055] Step S220: Determine the highest and lowest temperatures of the universal joint based on the real-time temperature of the universal joint.

[0056] Among them, the highest temperature of the universal joint represents the highest temperature value obtained within the universal joint during the data acquisition period; the lowest temperature of the universal joint represents the lowest temperature value obtained within the universal joint during the data acquisition period.

[0057] Step S230: Determine the cumulative duration of the high-temperature range based on the highest temperature of the universal joint, determine the cumulative duration of the low-temperature range based on the lowest temperature of the universal joint, and determine the cumulative duration of the average ambient temperature based on the real-time ambient temperature.

[0058] Among them, the cumulative duration of high temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the highest temperature of the universal joint; the cumulative duration of low temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the lowest temperature of the universal joint; and the cumulative duration of ambient average temperature represents the cumulative duration of the real-time ambient temperature being within the temperature range corresponding to the ambient average temperature.

[0059] Step S240: Based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative time in the low temperature range, determine whether there is a preliminary risk of oil leakage in the universal joint.

[0060] If yes, then proceed to step S250; if no, it means there is no risk of oil leakage, and after waiting for a preset time, proceed to step S210 again.

[0061] Step S250: Obtain the rotational speed of the universal joint and the steering wheel angle, and determine whether there is a risk of oil leakage in the universal joint based on the rotational speed and the steering wheel angle.

[0062] This method can obtain the highest and lowest temperatures of the universal joint by acquiring the real-time temperature of the universal joint and the real-time ambient temperature during the acquisition period. It can then determine the cumulative duration of the high-temperature range and the cumulative duration of the low-temperature range. The cumulative duration of the average ambient temperature is determined by the real-time ambient temperature. When the highest temperature is higher than a certain temperature and the lowest temperature is lower than a certain temperature, it indicates that the universal joint has experienced a large temperature difference. The method detects the proportion of the cumulative duration of the low-temperature range to the total duration. When the universal joint is in a low-temperature state for too long, it is judged that there is a preliminary risk of oil leakage. Then, the rotational speed and steering wheel angle of the corresponding structure of the universal joint are detected. When the rotational speed and steering wheel angle are also in an extreme state, it is determined that there is a risk of fluid leakage in the universal joint.

[0063] In one possible implementation, to expedite the step of obtaining the cumulative duration of the average ambient temperature, the average ambient temperature can be determined first. Therefore, before step S210, the universal joint oil leakage judgment method may further include the following steps:

[0064] Collect real-time ambient temperature over a preset time period to determine the average ambient temperature.

[0065] The average ambient temperature of the vehicle is determined by the real-time temperature of the environment over a recent period of time. For example, the average ambient temperature over the past 7 days can be collected.

[0066] In one possible implementation, depending on actual needs, in step S210, the data collection period can be the time period from when the vehicle starts to the current time, collecting only the data after the vehicle starts, detecting the vehicle's condition during a single operation, and providing feedback on changes in the vehicle's condition within a short period of time; or, in order to reflect a more comprehensive vehicle condition, the data collection period can be set to be longer, which can be the time period from some time ago to the current time, the same as the time period for determining the average ambient temperature, for example, from 7 days ago to the current time. This way, the data collection periods for the highest temperature, lowest temperature, and average ambient temperature are consistent, and the data collection time span for the vehicle condition is increased, resulting in more comprehensive data.

[0067] In step S220, the highest and lowest temperatures of the universal joint during the acquisition period are determined based on all real-time temperatures during the acquisition period.

[0068] In one possible implementation, in step S230, the cumulative duration of the high-temperature range is determined based on the highest temperature of the universal joint, the cumulative duration of the low-temperature range is determined based on the lowest temperature of the universal joint, and the cumulative duration of the average ambient temperature is determined based on the real-time ambient temperature. During the determination of the cumulative duration, a certain range is set for the highest temperature, lowest temperature, and average ambient temperature to determine the corresponding cumulative duration. The steps for obtaining the cumulative duration of the high-temperature range, the cumulative duration of the low-temperature range, and the cumulative duration of the average ambient temperature include:

[0069] The cumulative duration of obtaining the temperature within ±5℃ of the highest temperature of the universal joint is the cumulative duration of the high temperature range;

[0070] The cumulative duration of obtaining the temperature within ±5℃ of the lowest temperature of the universal joint is the cumulative duration of the low temperature range;

[0071] The cumulative time for obtaining the temperature within ±5℃ of the average ambient temperature is called the cumulative time for the average ambient temperature.

[0072] Optionally, the above temperature range can be adjusted according to actual conditions. For example, if the maximum temperature is higher than a certain temperature, the maximum temperature range of the universal joint can be appropriately increased; or if the minimum temperature is lower than a certain temperature, the minimum temperature range of the universal joint can be appropriately increased.

[0073] In one possible implementation, step S240, which involves determining whether the universal joint has a preliminary risk of oil leakage based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative time spent in the low-temperature range, may include:

[0074] When the conditions T1≥a*T01, T2≤b*T02 and t2 / (t1+t2+t3)≥c are met, it is determined that the universal joint has a preliminary risk of oil leakage.

[0075] Where T1 is the highest temperature of the universal joint, T2 is the lowest temperature of the universal joint, t1 is the cumulative duration of the high temperature range, t2 is the cumulative duration of the low temperature range, t3 is the cumulative duration of the average ambient temperature, T01 is the first preset temperature, T02 is the second preset temperature, a is the proportionality coefficient used to characterize whether T1 exceeds T01 by a certain proportion, b is the proportionality coefficient used to characterize whether T2 is less than T02 by a certain proportion, and c is the proportionality coefficient.

[0076] The core idea is that T1≥a*T01: the highest temperature of the universal joint is higher than the first preset temperature, T2≤b*T02: the lowest temperature of the universal joint is lower than the second preset temperature, indicating that the universal joint has experienced a large temperature difference change, and t2 / (t1+t2+t3)≥c indicates that the cumulative time of the low temperature range of the universal joint accounts for a large proportion of the overall time, so it can be judged that the universal joint has an initial risk of oil leakage.

[0077] In one possible implementation, in order to remind users of driving safety under relatively harsh vehicle operating conditions, Figure 3 This is another flowchart illustrating a universal joint oil leakage detection method provided in an embodiment of the present invention, referring to... Figure 3 The following steps may be included after step S240:

[0078] Step S241: If yes, generate a primary warning signal and send preliminary warning information to the user.

[0079] When a preliminary risk of oil leakage is detected in the universal joint, a primary warning signal can be generated to send a warning message to the user, reminding them to pay attention to vehicle safety and avoid dangerous driving, so as to avoid losses under adverse working conditions. The reminder can be displayed on the vehicle's central control screen or on the vehicle's dashboard.

[0080] In one practical implementation, the first preset temperature ranges from 85℃ to 110℃, and the second preset temperature ranges from -30℃ to -45℃. This implementation effectively controls the initial risk of oil leakage, placing the vehicle in a relatively harsh operating condition, but not so harsh that it causes direct vehicle damage before any warning is given.

[0081] In one possible implementation, if the universal joint is determined to have a preliminary risk of oil leakage, step S250 involves obtaining the rotational speed of the structure corresponding to the universal joint and the steering wheel angle. The structure corresponding to the universal joint can be a drive shaft. The step of determining whether the universal joint has a risk of oil leakage based on the rotational speed and steering wheel angle may include:

[0082] When α / 2π>1 and r / r0>1, the gimbal is judged to have leakage and is at risk.

[0083] Where α is the steering wheel angle, r is the rotation speed, and r0 is the preset rotation speed.

[0084] In harsh temperature environments, if the drive shaft rotates too fast and the steering wheel angle is too large, it may increase the gap between the universal joint sleeve and the universal joint housing metal, causing oil leakage.

[0085] In one practical implementation, the preset speed range is 15 rpm to 40 rpm. Setting this speed can trigger the risk of oil leakage in the universal joint, but it will not cause the universal joint to leak oil directly due to the high speed.

[0086] In one possible implementation, to alert the user to check the universal joint in the event of a vehicle oil leak risk, Figure 4 This is another flowchart illustrating a universal joint oil leakage detection method provided in an embodiment of the present invention, referring to... Figure 4 After step S250, the following step may also be included:

[0087] Step S251: If yes, generate a warning signal and send the warning information to the user.

[0088] In cases where there is a risk of oil leakage in the universal joint, a timely warning message will be sent to the user, reminding them to check the universal joint as soon as possible.

[0089] Optionally, the warning information can also be sent to the cloud. The cloud can then use its computing power to send the warning information to the nearest 4S store for the vehicle. The 4S store can then promptly understand the vehicle's condition and provide assistance to the user, allowing the vehicle to be inspected for oil leaks at the nearest location.

[0090] The following description provides an example of an apparatus capable of performing the above-described example process steps. Specifically, Figure 5 A schematic diagram of a universal joint oil leakage detection device is provided in an embodiment of the present invention. See [link / reference]. Figure 5 The universal joint oil leakage detection device 300 includes: a real-time temperature acquisition unit 310, a temperature determination unit 320, a cumulative duration determination unit 330, a preliminary judgment unit 340, and a judgment unit 350.

[0091] The real-time temperature acquisition unit 310 is used to acquire the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the acquisition period.

[0092] Temperature determination unit 320 is used to determine the highest temperature and lowest temperature of the universal joint based on the real-time temperature of the universal joint; the highest temperature of the universal joint represents the highest value of the collected temperature within the universal joint during the acquisition period; the lowest temperature of the universal joint represents the lowest value of the collected temperature within the universal joint during the acquisition period.

[0093] The cumulative duration determination unit 330 is used to determine the cumulative duration of the high-temperature range based on the highest temperature of the universal joint, the cumulative duration of the low-temperature range based on the lowest temperature of the universal joint, and the cumulative duration of the ambient average temperature based on the real-time ambient temperature. The cumulative duration of the high-temperature range represents the cumulative duration of the collected temperature within the temperature range corresponding to the highest temperature of the universal joint; the cumulative duration of the low-temperature range represents the cumulative duration of the collected temperature within the temperature range corresponding to the lowest temperature of the universal joint; and the cumulative duration of the ambient average temperature represents the cumulative duration of the real-time ambient temperature within the temperature range corresponding to the ambient average temperature.

[0094] Preliminary judgment unit 340: Based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative time in the low temperature range, the user judges whether there is a preliminary risk of oil leakage in the universal joint.

[0095] The judgment unit 350 is used to obtain the rotational speed of the universal joint and the steering wheel angle of the corresponding structure if the condition is met, and to determine whether there is a risk of oil leakage in the universal joint based on the magnitude of the rotational speed and the magnitude of the steering wheel angle.

[0096] In summary, the universal joint oil leakage judgment method, device, electronic device, and storage medium provided by the embodiments of the present invention determine the highest temperature, lowest temperature, and average ambient temperature of the universal joint by collecting real-time temperature data of the universal joint and real-time ambient temperature data. Then, the cumulative duration of the high-temperature range, the cumulative duration of the low-temperature range, and the cumulative duration of the average ambient temperature within the data collection period are determined. The corresponding data are processed to determine whether there is a preliminary risk of oil leakage in the universal joint. If there is a preliminary risk of oil leakage, the rotational speed of the corresponding structure of the universal joint and the steering wheel angle are collected to determine whether there is a risk of oil leakage in the universal joint.

[0097] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and methods can also be implemented in other ways. The apparatus embodiments described above are merely illustrative; for example, the flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than those marked in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram and / or flowchart, and combinations of blocks in block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

[0098] In addition, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0099] If the functionality is implemented as a software module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a computer-readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0100] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0101] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A method for determining oil leakage in a universal joint, characterized in that, The method includes: Acquire the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the data acquisition period; The maximum and minimum temperatures of the universal joint are determined based on the real-time temperature of the universal joint; the maximum temperature of the universal joint represents the highest temperature value obtained within the universal joint during the acquisition period; the minimum temperature of the universal joint represents the lowest temperature value obtained within the universal joint during the acquisition period. The cumulative duration of the high-temperature range is determined based on the highest temperature of the universal joint, and the cumulative duration of the low-temperature range is determined based on the lowest temperature of the universal joint. The cumulative duration of the average ambient temperature is determined based on the real-time ambient temperature. The cumulative duration of the high-temperature range represents the cumulative duration during which the collected temperature is within the temperature range corresponding to the highest temperature of the universal joint. The cumulative duration of the low-temperature range represents the cumulative duration during which the collected temperature is within the temperature range corresponding to the lowest temperature of the universal joint. The cumulative duration of the average ambient temperature represents the cumulative duration during which the real-time ambient temperature is within the temperature range corresponding to the average ambient temperature. Based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative duration of the low-temperature range, it is determined whether the universal joint has a preliminary risk of oil leakage. This includes: when the conditions T1≥a*T01, T2≤b*T02, and t2 / (t1+t2+t3)≥c are met, it is determined that the universal joint has a preliminary risk of oil leakage; where T1 is the highest temperature of the universal joint, T2 is the lowest temperature of the universal joint, t1 is the cumulative duration of the high-temperature range, t2 is the cumulative duration of the low-temperature range, t3 is the cumulative duration of the average ambient temperature, T01 is the first preset temperature, T02 is the second preset temperature, a is a proportionality coefficient used to characterize whether T1 exceeds T01 by a certain proportion, b is a proportionality coefficient used to characterize whether T2 is less than T02 by a certain proportion, and c is a proportionality coefficient. If so, obtain the rotational speed of the universal joint and the steering wheel angle, and determine whether the universal joint has a risk of oil leakage based on the magnitude of the rotational speed and the magnitude of the steering wheel angle.

2. The method according to claim 1, characterized in that, Before obtaining the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the acquisition period, the following steps are also included: Collect real-time ambient temperature over a preset time period to determine the average ambient temperature.

3. The method according to claim 1, characterized in that, The step of determining whether there is a risk of oil leakage in the universal joint based on the rotation speed and the steering wheel angle includes: When α / 2π>1 and r / r0>1, the universal joint is deemed to have a risk of oil leakage; Where α is the steering wheel angle, r is the rotation speed, and r0 is the preset rotation speed.

4. The method according to claim 1, characterized in that, The steps for obtaining the cumulative duration of the high temperature range, the cumulative duration of the low temperature range, and the cumulative duration of the average ambient temperature include: The cumulative duration of obtaining the temperature within ±5℃ of the highest temperature of the universal joint is the cumulative duration of the high temperature range; The cumulative duration of obtaining the temperature within ±5℃ of the lowest temperature of the universal joint is the cumulative duration of the low temperature range; The cumulative duration of temperature within the range of ±5℃ of the average ambient temperature is the cumulative duration of the average ambient temperature.

5. The method according to claim 1, characterized in that, The first preset temperature range is 85℃~110℃, and the second preset temperature range is -30℃~-45℃.

6. The method according to claim 3, characterized in that, The preset rotation speed range is 15 rpm to 40 rpm.

7. A universal joint oil leakage detection device, characterized in that, The universal joint oil leakage detection device includes: The real-time temperature acquisition unit is used to acquire the real-time temperature of the universal joint and the real-time ambient temperature corresponding to the acquisition period. A temperature determination unit is used to determine the highest temperature and the lowest temperature of the universal joint based on the real-time temperature of the universal joint; the highest temperature of the universal joint represents the highest value of the collected temperature within the universal joint obtained during the collection period; the lowest temperature of the universal joint represents the lowest value of the collected temperature within the universal joint obtained during the collection period. The cumulative duration determination unit is used to determine the cumulative duration of the high-temperature range based on the highest temperature of the universal joint, and the cumulative duration of the low-temperature range based on the lowest temperature of the universal joint, and to determine the cumulative duration of the average ambient temperature based on the real-time ambient temperature; the cumulative duration of the high-temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the highest temperature of the universal joint; the cumulative duration of the low-temperature range represents the cumulative duration of the collected temperature being within the temperature range corresponding to the lowest temperature of the universal joint; and the cumulative duration of the average ambient temperature represents the cumulative duration of the real-time ambient temperature being within the temperature range corresponding to the average ambient temperature. The preliminary judgment unit is used to determine whether the universal joint has a preliminary risk of oil leakage based on the relationship between the highest temperature of the universal joint and the first preset temperature, the relationship between the lowest temperature of the universal joint and the second preset temperature, and the proportion of the cumulative duration of the low temperature range. This includes determining that the universal joint has a preliminary risk of oil leakage when the conditions T1≥a*T01, T2≤b*T02, and t2 / (t1+t2+t3)≥c are met. Wherein, T1 is the highest temperature of the universal joint, T2 is the lowest temperature of the universal joint, t1 is the cumulative duration of the high temperature range, t2 is the cumulative duration of the low temperature range, t3 is the cumulative duration of the average ambient temperature, T01 is the first preset temperature, T02 is the second preset temperature, a is a proportionality coefficient used to characterize whether T1 exceeds T01 by a certain proportion, b is a proportionality coefficient used to characterize whether T2 is less than T02 by a certain proportion, and c is a proportionality coefficient. The judgment unit is used to obtain the rotational speed of the universal joint and the steering wheel angle of the corresponding structure if the condition is met, and to determine whether the universal joint has a risk of oil leakage based on the magnitude of the rotational speed and the magnitude of the steering wheel angle.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the method according to any one of claims 1 to 6.

9. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method described in any one of claims 1 to 6.

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