Transfer case offline detection method and system, electronic equipment and storage medium

Abstract

The invention relates to a transfer case offline detection method and system, electronic equipment and a storage medium, and belongs to the technical field of electronics. The method comprises the following steps: testing at least one of a communication function and an execution motor function of the transfer case; and when each of the at least one function passes the test, performing a performance test on the transfer case. Before the performance of the transfer case is tested, at least one of the communication function and the execution motor function of the transfer case is tested, and when each of the at least one function passes the test, the performance of the transfer case is tested, so that the performance of the transfer case is ensured to be not influenced before the performance test is carried out. According to the transfer case, all components of the transfer case can work normally, cooperation among the components is free of obstacles, potential problems can be found in advance, unforeseen circumstances in subsequent performance testing are avoided, the efficiency and accuracy of testing can be improved, and therefore the reliability of products is improved.

Description

Technical Field

[0001] The present application belongs to the field of electronic technology, and specifically relates to a transfer case offline detection method, system, electronic device and computer-readable storage medium. Background Art

[0002] Transfer case end-of-line inspection is an important step to ensure that the quality of the car meets the standard before it leaves the factory. This process is crucial to ensure vehicle performance, safety and reliability. However, the current transfer case end-of-line inspection project has inaccurate test results, resulting in low product reliability. Summary of the invention

[0003] In view of this, the purpose of the present application is to provide a transfer case off-line detection method, system, electronic device and computer-readable storage medium to improve the current problem of inaccurate test results of transfer case off-line detection items, thereby causing low product reliability.

[0004] The embodiment of the present application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a method for detecting a transfer case offline, comprising: testing at least one of a communication function and an execution motor function of the transfer case; and performing a performance test on the transfer case when each of the at least one function passes the test.

[0006] In the above embodiment, the transfer case performance test is performed only when at least one of the communication function and the execution motor function of the transfer case passes the test. This can ensure that the various components of the transfer case can work normally and there are no obstacles to the mutual cooperation. Potential problems can be discovered in advance and unexpected situations can be avoided in subsequent performance tests, which helps to improve the efficiency and accuracy of the test and thus improve the reliability of the product.

[0007] In combination with the embodiment of the first aspect, in a possible implementation, the method also includes: obtaining a first oil temperature detected by a temperature sensor of the transfer case; obtaining a second oil temperature detected by a target sensor, wherein the target sensor is located in an oil tank, and the oil tank is used to fill the transfer case with oil; based on the first oil temperature and the second oil temperature, obtaining a test result of testing the temperature sensor of the transfer case.

[0008] In the above embodiment, the test result of the temperature sensor of the transfer case is obtained by acquiring the oil temperature detected by the temperature sensor of the transfer case and the oil temperature detected by the fuel tank sensor; the temperature sensor of the transfer case is tested to ensure that the temperature sensor of the transfer case can accurately monitor and control the temperature of the oil inside the transfer case to meet the working requirements of the transfer case, so that the transfer case can provide stable and reliable power transmission for the vehicle.

[0009] In combination with the embodiment of the first aspect, in a possible implementation manner, the function of the actuator motor of the transfer case is tested, including: controlling the mode of the actuator motor of the transfer case to a speed control mode, and controlling the actuator motor to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and obtaining the first mechanical zero position of the actuator motor when the clutch is in the non-torque transmission limit position; wherein the actuator motor controls the clutch of the transfer case through a transmission mechanism; controlling the actuator motor to run at a preset second speed so that the clutch is in a fully engaged limit position, and obtaining the first locking position of the actuator motor when the clutch is in a fully engaged limit position; wherein the clutch torque transmission is maximum when the clutch is in the fully engaged limit position; and obtaining the first test result of the transfer case actuator motor based on the first mechanical zero position and the first locking position.

[0010] In the above embodiment, the mode of the actuator motor of the transfer case is controlled to be the speed control mode, and the actuator motor of the transfer case is controlled to run until the clutch is in the non-torque transmission limit position, the first mechanical zero position of the actuator motor at this time is obtained, and then the actuator motor is controlled to run until the clutch is in the fully engaged limit position, the first locking position of the actuator motor at this time is obtained, and the test result of the actuator motor of the transfer case is obtained according to the first mechanical zero position and the first locking position; the speed control mode of the actuator motor of the transfer case is tested to ensure that the actuator motor of the transfer case can work according to the predetermined program in the speed control mode, thereby ensuring the accurate operation of the transfer case, and at the same time helping to realize the initial position self-learning of the transfer case, ensuring that the transfer case can accurately identify its initial position when starting, and providing an accurate reference point for subsequent operations; it can also help to discover potential fault problems, so as to take measures in advance and improve the reliability of the product.

[0011] In combination with the embodiment of the first aspect, in a possible implementation manner, the function of the transfer case's actuator motor is tested, further comprising: controlling the mode of the transfer case's actuator motor to a position control mode, controlling the actuator motor to run with a preset first step length, and determining whether the actuator motor can run to the first mechanical zero position, to obtain a first judgment result; controlling the actuator motor to run with a preset first step length, and determining whether the actuator motor can run to the first locking position, to obtain a second judgment result; and obtaining a second test result of the transfer case's actuator motor based on the first judgment result and the second judgment result.

[0012] In the above embodiment, the mode of the actuator motor of the transfer case is controlled to be the position control mode, the operation of the actuator motor is controlled, and it is determined whether the actuator motor can run to the first mechanical zero position and the first locking position, so as to obtain the test result of the position control mode of the actuator motor; the position control mode of the actuator motor of the transfer case is tested to ensure that the actuator motor of the transfer case can work accurately according to the predetermined program in the position control mode, thereby ensuring the accurate operation of the transfer case; at the same time, it can help to discover potential fault problems, so as to take measures in advance and improve the reliability of the product.

[0013] In a second aspect, an embodiment of the present application provides a transfer case offline detection system, comprising a transfer case; a host computer connected to the transfer case, the host computer being used to test at least one of the communication function and the execution motor function of the transfer case; when each of the at least one function passes the test, the transfer case is subjected to a performance test.

[0014] In combination with the second aspect embodiment, in a possible implementation, the system also includes: a target sensor for detecting a second oil temperature, wherein the target sensor is located in an oil tank, and the oil tank is used to fill the transfer case with oil; the host computer is also used to obtain the first oil temperature detected by the temperature sensor of the transfer case and the second oil temperature detected by the target sensor, and obtain the test result of the temperature sensor of the transfer case based on the first oil temperature and the second oil temperature.

[0015] In combination with the second aspect embodiment, in a possible implementation manner, the upper computer is specifically used to: control the mode of the actuator motor of the transfer case to a speed control mode, and control the actuator motor to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and obtain the first mechanical zero position of the actuator motor when the clutch is in the non-torque transmission limit position; wherein the actuator motor controls the clutch of the transfer case through a transmission mechanism; control the actuator motor to run at a preset second speed so that the clutch is in a fully engaged limit position, and obtain the first locking position of the actuator motor when the clutch is in a fully engaged limit position; wherein the clutch torque transmission is maximum when the clutch is in the fully engaged limit position; and obtain the first test result of the transfer case actuator motor based on the first mechanical zero position and the first locking position.

[0016] In combination with the second aspect embodiment, in a possible implementation manner, the host computer is specifically used to: control the mode of the transfer case's actuator motor to a position control mode, control the actuator motor to run with a preset first step length, and determine whether the actuator motor can run to the first mechanical zero position to obtain a first judgment result; control the actuator motor to run with a preset first step length, and determine whether the actuator motor can run to the first locking position to obtain a second judgment result; and obtain a second test result of the transfer case's actuator motor based on the first judgment result and the second judgment result.

[0017] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a memory and a processor, the memory being connected to the processor; the memory being used to store programs; and the processor being used to call the programs stored in the memory to execute the method provided in the above-mentioned first aspect embodiment and / or in combination with any one of the implementations of the first aspect embodiment.

[0018] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the method provided by the above-mentioned first aspect embodiment and / or any one of the implementations combined with the first aspect embodiment is executed.

[0019] Other features and advantages of the present application will be described in the following description. The purpose and other advantages of the present application can be realized and obtained through the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The above and other purposes, features and advantages of the present application will be more clear as shown in the drawings.

[0021] Figure 1 A schematic flow chart of a transfer case off-line detection method provided in an embodiment of the present application is shown.

[0022] Figure 2 A schematic flow chart of another transfer case off-line detection method provided in an embodiment of the present application is shown.

[0023] Figure 3 A schematic structural diagram of a transfer case offline detection system provided in an embodiment of the present application is shown.

[0024] Figure 4A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following embodiments can be used as examples to more clearly illustrate the technical solutions of the present application, and cannot be used to limit the scope of protection of the present application. It will be appreciated by those skilled in the art that, in the absence of conflict, the features in the following embodiments and embodiments can be combined with each other.

[0026] It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it is not necessary to further define and explain it in the subsequent drawings. At the same time, in the description of this application, relational terms such as "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements that are not clearly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0027] Furthermore, the term "and / or" in this application is merely a term used to describe the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0028] An embodiment of the present application provides a transfer case offline detection method. Before performing a performance test on the transfer case, at least one of the communication function and the execution motor function of the transfer case is tested. When each of the at least one function passes the test, the transfer case is performance tested again to ensure that before the performance test, the components of the transfer case can operate normally and there are no obstacles to the cooperation between them. Potential problems can be discovered in advance to avoid unexpected situations in subsequent performance tests, which helps to improve the efficiency and accuracy of the test, thereby improving the reliability of the product.

[0029] The present application embodiment provides a method for detecting a transfer case off-line. Figure 1The flowchart shown illustrates the transfer case off-line detection method.

[0030] Step S10: testing at least one of the communication function and the execution motor function of the transfer case.

[0031] In one possible implementation, before testing at least one of the communication function and the execution motor function of the transfer case, the coded information corresponding to the QR code on the transfer case needs to be entered into the detection system so that the detected transfer case can be subsequently matched with the test report stored in the system; after the transfer case information is correctly entered, the refueling port of the transfer case needs to be connected to the oil pipe of the fuel tank, and the oil drain port of the transfer case needs to be connected to the oil extraction pipe of the fuel tank, and lubricating oil needs to be added to the transfer case. The amount of oil added must meet the design requirements to prevent the transfer case from being damaged due to lack of cooling and lubrication during the test; wherein, the function of the fuel tank is to store oil, which is used to fill the transfer case with oil during testing to ensure the cooling and lubrication effect.

[0032] Among them, at least one of the communication function and the execution motor function of the transfer case is tested. It can be that only the communication function of the transfer case is tested, or only the execution motor function of the transfer case is tested. In some embodiments, both the communication function of the transfer case and the execution motor function of the transfer case can be tested.

[0033] In one possible implementation, the specific process of testing the communication function of the transfer case in the above step S10 may include: after the transfer case is powered on, the transfer case performs a self-test procedure to ensure that the components of the transfer case are working normally, and at the same time, the upper computer can display the self-test results, indicating that the communication function of the transfer case is normal.

[0034] In a possible implementation, the specific process of testing the transfer case's communication function in the above step S10 may include: the host computer sends instructions to the transfer case, the transfer case performs corresponding actions according to the instructions, and the signal generated by the transfer case's action can be displayed on the host computer, indicating that the transfer case's communication function is normal.

[0035] The function of the actuator motor of the transfer case may be tested by testing only the speed control mode of the actuator motor of the transfer case, or by testing both the speed control mode and the position control mode of the actuator motor of the transfer case.

[0036] In a possible implementation, the function of the transfer case's actuator motor is tested by testing only the speed control mode of the transfer case's actuator motor, combined with Figure 2The flowchart shown illustrates the specific process of testing the speed control mode of the transfer case's actuator motor, including: controlling the mode of the transfer case's actuator motor to be a speed control mode, and controlling the actuator motor to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and obtaining the first mechanical zero position of the actuator motor when the clutch is in the non-torque transmission limit position; controlling the actuator motor to run at a preset second speed so that the clutch is in a fully engaged limit position, and obtaining the first locking position of the actuator motor when the clutch is in a fully engaged limit position; obtaining the first test result of the transfer case's actuator motor based on the first mechanical zero position and the first locking position.

[0037] Among them, the execution motor controls the clutch of the transfer case through the transmission mechanism, so the execution motor will drive the clutch to rotate when it is running. When the execution motor runs to the first mechanical zero position, the execution motor will drive the clutch to be in the non-torque transmission limit position; wherein, the clutch torque is maximum when the clutch is in the limit position of full engagement, that is, when the clutch is in the limit position of full engagement, the clutch itself is fully compressed and the torque transmitted by the clutch is maximum; wherein, the first speed can be -200rpm, and the second speed can be 200rpm. The speeds given in this embodiment are only exemplary and should not be used as a limitation on the speed value; the first locking position is the current position of the execution motor minus the value of the first mechanical zero position.

[0038] In the above embodiment, the process of obtaining the first test result of the transfer case actuator motor according to the first mechanical zero position and the first locking position may include: comparing the first mechanical zero position with a preset first threshold range, and comparing the first locking position with a preset second threshold range; if the first mechanical zero position is within the first threshold range and the first locking position is within the second threshold range, then the first test result of the transfer case actuator motor is a test pass. If any value of the first mechanical zero position and the first locking position is not within the preset threshold range, and the reason is that the gasket selection process is abnormal when the transfer case is assembled to the test bench, the test program should be exited, the gasket should be reselected and the test should be repeated. If the first mechanical zero position is a small positive value during the retest, it is necessary to check whether it is caused by the rebound of the motor when the initial position of the motor stopped at the first mechanical zero position during the last test. If it is caused by the rebound of the motor when the initial position of the motor stopped at the first mechanical zero position during the last test, this abnormal value can be ignored. If the first locking position is not within the threshold range during the retest, it is necessary to check whether the full stroke of the executing motor is increased due to the clutch running-in during the last test. If it is caused by the clutch running-in during the last test, this abnormal value can be ignored.

[0039] In a possible implementation manner, the function of the actuator motor of the transfer case is tested by testing both the speed control mode of the actuator motor of the transfer case and the position control mode of the actuator motor of the transfer case. The specific process includes: controlling the mode of the actuator motor of the transfer case to be a speed control mode, and controlling the actuator motor to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and obtaining the first mechanical zero position of the actuator motor when the clutch is in the non-torque transmission limit position; controlling the actuator motor to run at a preset second speed so that the clutch is in a fully engaged limit position, and obtaining the first locking position of the actuator motor when the clutch is in the fully engaged limit position; obtaining a first test result of the actuator motor of the transfer case according to the first mechanical zero position and the first locking position; controlling the mode of the actuator motor of the transfer case to be a position control mode, controlling the actuator motor to run at a preset first step length, and judging whether the actuator motor can run to the first mechanical zero position, and obtaining a first judgment result; controlling the actuator motor to run at a preset first step length, and judging whether the actuator motor can run to the first locking position, and obtaining a second judgment result; obtaining a second test result of the actuator motor of the transfer case according to the first judgment result and the second judgment result.

[0040] Among them, the preset first step length can be 200deg. The step length given in this embodiment is only exemplary and should not be used as a limitation on the step length. According to the first judgment result and the second judgment result, the second test result of the transfer case actuator motor can be obtained, which may include: the actuator motor can run to the first mechanical zero position and the actuator motor can run to the first locking position, then the second test result of the transfer case actuator motor is the test passed.

[0041] Step S20: When each of the at least one function passes the test, a performance test is performed on the transfer case.

[0042] Since the performance of the transfer case is mainly reflected in power distribution capability, response speed, torque capacity, transmission efficiency, durability and reliability, noise and vibration control, etc., the performance test in the above step S20 may include: multiple rounds of static self-learning test, transfer case running-in test, transfer case dynamic KP (Kiss Point) measurement, transfer case torque transmission characteristic test and transfer case NVH (Noise, Vibration, Harshness) test, wherein the KP point is the position of the actuator motor when the clutch starts to transmit torque; NVH refers to noise, vibration and acoustic roughness.

[0043] In one possible implementation, the transfer case offline detection method further includes: obtaining a first oil temperature detected by a temperature sensor of the transfer case; obtaining a second oil temperature detected by a target sensor; and obtaining a test result of testing the temperature sensor of the transfer case based on the first oil temperature and the second oil temperature.

[0044] Wherein, the target sensor is located in the oil tank, and the oil tank is used to fill the transfer case with oil; in the above embodiment, the process of obtaining the test result of the temperature sensor of the transfer case according to the first oil temperature and the second oil temperature may include: comparing the absolute value of the difference between the first oil temperature and the second oil temperature with a preset third threshold range, if the absolute value is within the third threshold range, the temperature sensor test of the transfer case passes; if the absolute value is not within the third threshold range, the temperature sensor test of the transfer case fails. Wherein, the third threshold range can be appropriately adjusted according to the workshop ambient temperature in summer and winter. When the temperature sensor test of the transfer case fails, the following processing methods can be used to handle it: If the temperature sensor of the transfer case has no reading, it is necessary to check the hardware and wiring harness faults of the transfer case, and retest after troubleshooting. Among them, the temperature sensor of the transfer case often shows -40℃; if the absolute value of the difference between the first oil temperature and the second oil temperature exceeds the third threshold range, check whether it is caused by the excessive influence of the workshop ambient temperature on the temperature of the transfer case. If it is not caused by environmental factors, replace the temperature sensor and retest, and retain the faulty temperature sensor and analyze the cause of the fault. It is worth noting that when retesting the temperature sensor of the transfer case, if the absolute value of the difference between the first oil temperature and the second oil temperature exceeds the third threshold range, it is necessary to check whether it is caused by insufficient cooling of the transfer case. If it is caused by insufficient cooling of the transfer case, this abnormal value can be ignored.

[0045] like Figure 3 As shown, Figure 3 A schematic structural diagram of a transfer case offline detection system provided in an embodiment of the present application is shown.

[0046] The transfer case offline detection system includes a transfer case and a host computer. The host computer is connected to the transfer case and is used to test at least one of the communication function and the execution motor function of the transfer case; when each of the at least one function passes the test, the transfer case is subjected to a performance test.

[0047] In a possible implementation, the transfer case offline detection system also includes: a target sensor for detecting a second oil temperature; at this time, the host computer is also used to obtain the first oil temperature detected by the temperature sensor of the transfer case and the second oil temperature detected by the target sensor, and obtain the test result of the temperature sensor of the transfer case based on the first oil temperature and the second oil temperature.

[0048] In one possible implementation, the upper computer is specifically used to control the mode of the transfer case's actuator motor in a speed control mode, and controls the actuator motor to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and obtains the first mechanical zero position of the actuator motor when the clutch is in the non-torque transmission limit position; controls the actuator motor to run at a preset second speed so that the clutch is in a fully engaged limit position, and obtains the first locking position of the actuator motor when the clutch is in the fully engaged limit position; obtains a first test result of the transfer case's actuator motor based on the first mechanical zero position and the first locking position.

[0049] In one possible implementation, the upper computer is specifically used to control the mode of the transfer case's actuator motor in a position control mode, controls the actuator motor to run with a preset first step length, and determines whether the actuator motor can run to a first mechanical zero position, to obtain a first judgment result; controls the actuator motor to run with a preset first step length, and determines whether the actuator motor can run to the first locking position, to obtain a second judgment result; obtains a second test result of the transfer case's actuator motor based on the first judgment result and the second judgment result.

[0050] Wherein, when the transfer case is subjected to a performance test, in a possible implementation manner, the transfer case offline detection system may further include: a drive test bench and a dynamometer.

[0051] The host computer is connected to the drive bench and the dynamometer respectively, and the host computer can test the torque transmission characteristics, dynamic KP point and NVH of the transfer case through the drive bench and the dynamometer.

[0052] The drive test bench is mainly used to provide power for the transfer case. It simulates the transmission of a real vehicle. The speed, torque and other signals of the drive test bench can be collected by the host computer.

[0053] The dynamometer is mainly used to control the speed of the forward output shaft of the transfer case. The speed, torque and other signals of the dynamometer can also be collected by the host computer.

[0054] The implementation principle and technical effects of the system embodiment are the same as those of the aforementioned method embodiment. For the sake of brief description, for matters not mentioned in the system embodiment, reference may be made to the corresponding contents in the aforementioned method embodiment.

[0055] like Figure 4 As shown, Figure 4 The schematic diagram of the structure of an electronic device 20 provided in an embodiment of the present application is shown. The electronic device 20 includes: a processor 21 and a memory 22.

[0056] It should be noted that Figure 4 The components and structures of the electronic device 20 shown are merely exemplary and non-limiting. The electronic device may also have other components and structures as required.

[0057] The processor 21, the memory 22, and other components that may appear in the electronic device 20 are directly or indirectly electrically connected to each other to achieve data transmission or interaction. For example, the processor 21, the memory 22, and other components that may appear may be electrically connected to each other via one or more communication buses or signal lines.

[0058] The memory 22 is used to store programs, for example, the program corresponding to the transfer case off-line detection method mentioned above is stored.

[0059] The processor 21 is used to execute the executable module stored in the memory 22 to execute the above-mentioned transfer case off-line detection method.

[0060] Of course, the method disclosed in any embodiment of the present application can be applied to the processor 21, or implemented by the processor 21.

[0061] An embodiment of the present application also provides a non-volatile computer-readable storage medium (hereinafter referred to as storage medium), on which a computer program is stored. When the computer program is run by a computer such as the above-mentioned electronic device 20, the method disclosed in any of the above-mentioned embodiments is executed.

[0062] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0063] In addition, the functional modules in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0064] If the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a computer-readable storage medium, including several instructions for enabling a computer device (which can be a personal computer, a laptop, a server, or an electronic device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned computer-readable storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A transfer case off-line detection method, characterized in that: include: Testing at least one of a communication function and an execution motor function of the transfer case; When each of the at least one function passes the test, a performance test is performed on the transfer case.

2. The method according to claim 1, characterized in that The method further comprises: Acquiring a first oil temperature detected by a temperature sensor of the transfer case; Acquiring a second oil temperature detected by a target sensor, wherein the target sensor is located in an oil tank, and the oil tank is used to fill oil for the transfer case; A test result of testing the temperature sensor of the transfer case is obtained according to the first oil temperature and the second oil temperature.

3. The method according to claim 1, characterized in that: The transfer case's actuator motor function is tested, including: The mode of controlling the actuator motor of the transfer case is a speed control mode, and the actuator motor is controlled to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and the first mechanical zero position of the actuator motor is obtained when the clutch is in the non-torque transmission limit position; wherein the actuator motor controls the clutch of the transfer case through a transmission mechanism; Controlling the actuator motor to run at a preset second speed so that the clutch is in a fully engaged extreme position, and obtaining a first locking position of the actuator motor when the clutch is in the fully engaged extreme position; wherein the clutch torque transmission is maximum when the clutch is in the fully engaged extreme position; A first test result of the transfer case actuator motor is obtained according to the first mechanical zero position and the first locking position.

4. The method according to claim 3, characterized in that Testing the actuator motor function of the transfer case also includes: The mode of controlling the actuator motor of the transfer case is a position control mode, controlling the actuator motor to run at a preset first step length, and judging whether the actuator motor can run to the first mechanical zero position, to obtain a first judgment result; Controlling the execution motor to run at a preset first step length, and determining whether the execution motor can run to the first locking position, to obtain a second determination result; A second test result of the transfer case actuator motor is obtained according to the first judgment result and the second judgment result.

5. A transfer case off-line detection system, characterized in that: include: Transfer case; A host computer is connected to the transfer case, and is used to test at least one of the communication function and the motor execution function of the transfer case; when each of the at least one function passes the test, the transfer case is subjected to a performance test.

6. The system according to claim 5, characterized in that The system further comprises: a target sensor for detecting a second oil temperature, wherein the target sensor is located in an oil tank, and the oil tank is used to fill the transfer case with oil; The host computer is also used to obtain a first oil temperature detected by the temperature sensor of the transfer case and a second oil temperature detected by the target sensor, and obtain a test result of the temperature sensor of the transfer case based on the first oil temperature and the second oil temperature.

7. The system according to claim 5, characterized in that The host computer is specifically used for: The mode of controlling the actuator motor of the transfer case is a speed control mode, and the actuator motor is controlled to run at a preset first speed so that the clutch is in a non-torque transmission limit position, and the first mechanical zero position of the actuator motor is obtained when the clutch is in the non-torque transmission limit position; wherein the actuator motor controls the clutch of the transfer case through a transmission mechanism; Controlling the actuator motor to run at a preset second speed so that the clutch is in a fully engaged extreme position, and obtaining a first locking position of the actuator motor when the clutch is in the fully engaged extreme position; wherein the clutch torque transmission is maximum when the clutch is in the fully engaged extreme position; A first test result of the transfer case actuator motor is obtained according to the first mechanical zero position and the first locking position.

8. The system according to claim 7, characterized in that The host computer is specifically used for: The mode of controlling the actuator motor of the transfer case is a position control mode, controlling the actuator motor to run at a preset first step length, and judging whether the actuator motor can run to the first mechanical zero position, to obtain a first judgment result; Controlling the execution motor to run at a preset first step length, and determining whether the execution motor can run to the first locking position, to obtain a second determination result; A second test result of the transfer case actuator motor is obtained according to the first judgment result and the second judgment result.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory is connected to the processor; The memory is used to store programs; The processor is used to call the program stored in the memory to execute the method according to any one of claims 1 to 4.

10. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the computer program is executed by a processor, the method according to any one of claims 1 to 4 is executed.

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