Clutch torque transmission characteristic dynamic test method and system and electronic equipment

Abstract

The invention discloses a clutch torque transmission characteristic dynamic test method, and relates to the field of clutch control, and the method comprises the steps: building a test bench, and separating a clutch, the transmission is put into a direct gear; presetting working condition parameters, wherein the working condition parameters comprise an output dynamometer target rotating speed N, an input dynamometer target rotating speed N and a clutch actuator target initial position P; obtaining a preset target torque loading strategy; according to the preset target torque loading strategy, the current position of a clutch actuator is controlled, a clutch friction pair is made to move relatively, and meanwhile test data are collected; acquiring a preset temperature threshold value; according to the test data, whether the clutch reaches a preset temperature threshold value or not is judged; if not, continuing to execute the preset target torque loading strategy; if yes, acquiring a target test position, and generating test data of the target test position; and preprocessing the test data according to the target test position test data, and generating an all-position test result.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clutch control, in particular to a clutch torque transmission characteristic dynamic testing method, a clutch torque transmission characteristic dynamic testing system, an electronic device and a storage medium. BACKGROUND

[0002] The current clutch control generally adopts a static friction testing method. When the output dynamometer maintains a constant speed, the clutch is attached to the target position, and then the input dynamometer torque is gradually increased. The input dynamometer torque when the input dynamometer speed exceeds a certain value is the maximum value of the current position guest low torque of the clutch. This method has the following defects:

[0003] 1) Environmental sensitivity: compared with the actual vehicle state, the clutch is in the engaged state for a long time during testing, the heat dissipation is high, it is not easy to maintain the temperature in the actual vehicle state, and the torque transmission characteristic is greatly affected;

[0004] 2) Test parameters depend on experience: the judgment of the input dynamometer speed deviation depends on the experience threshold, and it is difficult to form a unified standard.

[0005] For example, the Chinese patent with the invention name of "A transfer case offline detection method, system and electronic device" and the application number of CN202411250911.X discloses a clutch basic characteristic testing method, wherein the static testing method is adopted for testing the clutch torque transmission characteristic.

[0006] The Chinese patent with the invention name of "Clutch control method and device and computer equipment" and the application number of CN202411798572.9 discloses a clutch control method, which controls the clutch according to the current position, actual temperature and transmission torque of the clutch. SUMMARY

[0007] Therefore, the present application aims to provide a clutch torque transmission characteristic dynamic testing method, a clutch torque transmission characteristic dynamic testing system, an electronic device and a storage medium, and proposes a clutch torque transmission characteristic dynamic testing method for the above problems. The transmission torque value of the clutch driven disc relative to the pressure disc and the flywheel is measured in real time to judge the torque transmission characteristic of the clutch, the environmental sensitivity and test parameter dependence on experience of the clutch torque transmission characteristic static friction testing method are solved, and the clutch torque transmission characteristic testing precision can be improved.

[0008] The present application provides the following solutions:

[0009] According to one aspect of the present application, a clutch torque transmission characteristic dynamic testing method is provided, comprising the following steps:

[0010] Step S1, build a test bench and separate the clutch, the test bench integrates the actuator control module, multi-dimensional sensing module and data acquisition module, the separated clutch includes; The transmission is hung into the direct gear;

[0011] Step S2, preset the working condition parameters, the working condition parameters include output dynamometer target speed N, input dynamometer target speed N1 and clutch actuator target initial position P0;

[0012] Step S3, get the preset target torque loading strategy;

[0013] According to the preset target torque loading strategy, control the current position of the clutch actuator, make the relative motion of the clutch friction pair, and collect test data;

[0014] Step S4, get the preset temperature threshold;

[0015] According to the clutch temperature, it is judged whether the clutch reaches the preset temperature threshold;

[0016] If no, continue to execute the preset target torque loading strategy;

[0017] If yes, get the target test position, generate target test position test data;

[0018] Step S5, according to the target test position test data, preprocess the test data, and generate full position test results.

[0019] Further, it includes:

[0020] In step S1, the actuator control module includes: position and pressure dual-mode regulation;

[0021] The multi-dimensional sensing module includes actuator position sensor, pressure plate pressure sensor, double speed sensor and friction plate temperature sensor.

[0022] Further, it includes:

[0023] In step S2, the working condition parameters also include: clutch rated transmission torque T and target speed interval, the input dynamometer can be set according to constant speed or dynamic fluctuation mode, and the actuator target initial position P0 corresponds to the clutch separation state.

[0024] Further, it includes:

[0025] In step S2, keep the speed difference between the output dynamometer target speed and the input dynamometer target speed within the target threshold, and get the relative position of the clutch friction pair.

[0026] Further, it includes:

[0027] In step S3, the test data includes: real-time position of the actuator, actual pressing force of the pressing plate, speed difference between the flywheel and the driven plate, real-time temperature of the friction plate, and actual transmitted torque.

[0028] Further, comprising:

[0029] The target test position completes at least three repeated tests, and the test data is averaged after removing abnormal values.

[0030] Further, comprising:

[0031] The data preprocessing includes removing invalid values caused by sensor fluctuations and load interruptions, and performing mean value calculation and smoothing processing on repeated data.

[0032] According to two aspects of the present application, a clutch torque characteristic dynamic test system is provided, comprising:

[0033] A test environment building module, a working condition presetting module, a torque loading and data acquisition module, a temperature threshold judging module, and a result generating module;

[0034] The test environment building module is used to build a test bench and separate the clutch, the test bench integrates an actuator control module, a multi-dimensional sensing module, and a data acquisition module, and the separated clutch includes: connecting the transmission to the direct gear;

[0035] The working condition presetting module is used to preset working condition parameters, the working condition parameters include an output dynamometer target speed N, an input dynamometer target speed N1, and a clutch actuator target initial position P0;

[0036] The torque loading and data acquisition module is used to obtain a preset target torque loading strategy;

[0037] According to the preset target torque loading strategy, the current position of the clutch actuator is controlled to make the clutch friction pair relatively move, and test data is collected at the same time;

[0038] The temperature threshold judging module is used to obtain a preset temperature threshold;

[0039] According to the clutch temperature, it is judged whether the clutch reaches the preset temperature threshold;

[0040] If no, the preset target torque loading strategy is continuously executed;

[0041] If yes, a target test position is obtained, and target test position test data is generated;

[0042] The result generating module is used to preprocess the test data according to the target test position test data, and generate a full-position test result.

[0043] According to three aspects of the present application, an electronic device is provided, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus.

[0044] The memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the clutch torque transmission characteristic dynamic testing method.

[0045] According to four aspects of the present application, a computer readable storage medium is provided, which stores a computer program executable by an electronic device, and when the computer program runs on the electronic device, the electronic device executes the steps of the clutch torque transmission characteristic dynamic testing method.

[0046] Compared with the prior art, the present application has the following advantages:

[0047] The present application can accurately maintain the real vehicle level test temperature range by maintaining the relative motion state of the clutch driven disc, the flywheel and the pressure disc, and combining the temperature sensor real-time monitoring and closed-loop temperature control. At the same time, the heat generation and dissipation law of dynamic friction is closer to the real vehicle working condition such as starting and shifting, which completely avoids the interference of temperature deviation from the actual torque transmission characteristic in static test, and improves the test accuracy of clutch torque transmission characteristic.

[0048] The present application integrates a multi-dimensional sensing module of temperature sensor, input dynamometer torque sensor, clutch actuator position sensor and double speed sensor, synchronously collects four types of core parameters of temperature, torque, position and speed difference, combines the accurate control of TCU on the actuator position, and constructs a closed-loop test logic of parameter input-state feedback-dynamic adjustment. Compared with the single torque-speed collection of static test, the influence of correctable temperature change and position deviation on the torque transmission characteristic is reduced, so that the test error of core data such as maximum transmission torque is significantly reduced.

[0049] The present application judges the torque transmission characteristic of the clutch by real-time measurement of the value of the transmission torque of the clutch driven disc relative to the pressure disc and the flywheel, reduces the influence of environmental factors and human judgment on the test result, improves the test accuracy of the torque transmission characteristic, and provides more reliable data support for the subsequent clutch position control. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0051] Figure 1 is a flow chart of a clutch torque transmission characteristic dynamic test method provided by one or more embodiments of the present application.

[0052] Figure 2 is a structural diagram of a clutch torque transmission characteristic dynamic test system provided by one or more embodiments of the present application.

[0053] Figure 3 is a structural diagram of a clutch torque transmission characteristic dynamic test system provided by one specific embodiment of the present application.

[0054] Figure 4 is a test data parameter table of input rotation speed, output rotation speed, input torque, output torque and clutch position provided by one specific embodiment of the present application.

[0055] Figure 5 is a curve diagram of test data of input rotation speed, output rotation speed, input torque, output torque and clutch position provided by one specific embodiment of the present application.

[0056] Figure 6 is a structural block diagram of an electronic device of a clutch torque transmission characteristic dynamic test method provided by one or more embodiments of the present application.

[0057] In Figure 3 1. input dynamometer; 2. input dynamometer torque sensor; 3. transmission controller (TCU); 4. transmission shaft; 5. output dynamometer; 6. transmission; 7. transmission support (with bearing seat); 8. clutch assembly. DETAILED DESCRIPTION

[0058] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0059] Figure 1 is a flow chart of a clutch torque transmission characteristic dynamic test method provided by one or more embodiments of the present application.

[0060] As Figure 1 shown, comprising the following steps:

[0061] Step S1, build a test bench and separate the clutch, the test bench integrates an actuator control module, a multi-dimensional sensing module and a data acquisition module, and the separation of the clutch includes: hanging the transmission into direct gear;

[0062] Specifically, by engaging the transmission into direct gear, the input shaft and the output shaft have the same speed, and the core feature is that the gear ratio is 1:1.

[0063] If a non-direct gear is engaged, the transmission will amplify / reduce the speed and torque, resulting in a difference between the input dynamometer speed and the output dynamometer speed, which includes both the clutch speed difference and the speed difference caused by the gear ratio, and the clutch slip state cannot be accurately calculated.

[0064] And the direct gear ratio is 1, which can directly reflect the speed difference (Δn=N1-N output) of the clutch friction pair through the difference between the input dynamometer speed and the output dynamometer speed, and the data is more accurate.

[0065] Step S2, presetting working condition parameters, the working condition parameters including output dynamometer target speed N, input dynamometer target speed N1 and clutch actuator target initial position P0;

[0066] Specifically, by setting the output dynamometer target speed N and the input dynamometer target speed N1, and ensuring that the output dynamometer target speed N and the input dynamometer target speed N1 remain a stable speed difference during testing, the existing technology increases the input torque after the output dynamometer constant speed and the clutch is attached, and the speed difference is caused by the passive input speed exceeding the threshold, which is random and difficult to maintain stability.

[0067] The input dynamometer speed (N+10) is set higher than the output dynamometer speed (N), which directly builds a quantifiable relative motion state between the flywheel, the driven disc and the pressure disc, solving the core pain points of uncontrollable relative motion and inability to simulate real vehicle dynamic engagement friction in static testing.

[0068] Static testing has short relative motion duration, insufficient friction heat generation, and long-term engagement of the clutch leading to rapid heat dissipation, making it difficult to match the real vehicle temperature environment. This step fixes the speed difference of 10r / min, allowing the clutch friction pair to generate stable sliding friction heat continuously, providing continuous power for the subsequent step 3.1 "temperature rises to target value", and solving the environmental sensitivity problem of static testing temperature difficulty to maintain and torque transmission characteristic test distortion.

[0069] Step S3, obtaining a preset target torque loading strategy;

[0070] According to the preset target torque loading strategy, the current position of the clutch actuator is controlled to make the clutch friction pair relative motion, and test data is collected;

[0071] Specifically, the preset target torque loading strategy is used to transfer a rated torque of 10% to warm up, test the maximum torque at each position, and actively control the actuator position to adjust the pressing force, so as to build a continuously controllable relative motion state of the friction pair, and solve the technical problems that the relative motion is uncontrollable in static testing and cannot match the dynamic working condition of the actual vehicle.

[0072] In the prior art, the static testing only relies on single data acquisition of input dynamometer torque + speed, without synchronous monitoring of clutch position, temperature, pressure plate pressure and other key parameters, so that the correlation characteristics of position-temperature-torque cannot be analyzed. In this step, while the actuator position is controlled according to the strategy, multi-dimensional data such as real-time position of the actuator, actual pressing force of the pressure plate, speed difference, temperature of the friction plate, and actual transmitted torque are synchronously collected, so as to solve the problems of insufficient data dimension in static testing and inability to comprehensively reflect the torque transmission characteristics.

[0073] In the strategy execution process, the synchronous collection of actuator position-pressure plate pressure-speed difference-temperature-torque can build a multi-parameter correlation model: for example, the torque value under different thermal states is corrected through temperature data, the control deviation of the actuator is corrected through position-pressure mapping, and whether the torque transmission is stable is judged through the speed difference. The problem that single data acquisition ignores the environment and control deviation in static testing is effectively avoided, and the test accuracy of the maximum transmitted torque at each position is greatly improved.

[0074] Step S4, obtaining a preset temperature threshold;

[0075] According to the temperature of the clutch, it is judged whether the clutch reaches the preset temperature threshold;

[0076] If no, the preset target torque loading strategy is continuously executed;

[0077] If yes, the target test position is obtained, and target test position test data is generated;

[0078] Specifically, the clutch actuator position is controlled by a computer through a transmission controller (TCU), so that the clutch transmits a torque of 10% of the rated torque. At this time, because there is a speed difference between the clutch driven plate, the flywheel and the pressure plate, heat is generated by friction to warm up the clutch. Whether the clutch reaches the target temperature is judged by the temperature sensor reading. After reaching the target temperature, the clutch is separated to prepare for testing. If it does not reach, it continues to warm up.

[0079] After waiting for 3 seconds after the input dynamometer torque sensor value is stable, the torque measured by the torque sensor at this time is the maximum transmitted torque at the target position of the clutch. The clutch is separated, and it is judged whether the temperature of the clutch is in the test temperature range. If it meets the condition, the test continues. If it does not meet the condition, it continues to warm up.

[0080] Step S5, according to the target test position test data, pre-processing test data, generate full position test results.

[0081] Further comprising:

[0082] In step S1, the actuator control module comprises a position and pressure dual-mode regulation.

[0083] The multi-dimensional sensing module comprises an actuator position sensor, a pressure plate pressure sensor, a double rotation speed sensor and a friction plate temperature sensor.

[0084] Specifically, the position and pressure dual-mode regulation can correct the actuator position deviation through the real-time feedback of the pressure plate pressure sensor: for example, when the friction plate wears and causes the pressure to decrease at the same position, the module can automatically fine-tune the actuator position to increase the pressure stroke, so that the pressure of the pressure plate can be maintained at the target value. This effect avoids the pressure fluctuation caused by single position control, ensures the controllable normal pressure of the clutch friction pair under different test scenarios such as temperature change and multi-position cycle test, and provides a stable mechanical basis for subsequent torque accurate measurement.

[0085] Further comprising:

[0086] In step S2, the working condition parameters further comprise a clutch rated transmission torque T and a target rotation speed range, the input dynamometer can be set in constant rotation speed or dynamic fluctuation mode, and the actuator target initial position P0 corresponds to the clutch separation state.

[0087] Specifically, the rated transmission torque T provides a quantitative basis for subsequent loading strategy, and the torque rise of 10% of the rated transmission torque T is a safe loading value set based on T, which can avoid the ablation of the friction plate caused by too high torque, and ensure that the friction pair generates enough heat to reach the target temperature; at the same time, the maximum transmission torque of subsequent position test can be directly judged whether the clutch transmission torque performance meets the standard through comparison with T.

[0088] The target rotation speed range makes the test rotation speed accurately match the actual running scenario of the commercial vehicle AMT: for example, setting the input dynamometer rotation speed N+10 in the range, the associated data of the measured rotation speed difference, torque and temperature can be directly used to optimize the rotation speed, position and torque control mapping curve of the AMT clutch, solve the technical problem that the static test data cannot be directly adapted to the real vehicle AMT control, and speed up the matching development cycle of the AMT clutch.

[0089] Further comprising:

[0090] In step S2, the rotation speed difference between the target rotation speed of the output dynamometer and the target rotation speed of the input dynamometer is kept within a target threshold, and the relative position of the clutch friction pair is obtained.

[0091] Further comprising:

[0092] In step S3, the test data includes: real-time position of the actuator, actual pressing force of the pressure plate, speed difference between the flywheel and the driven plate, real-time temperature of the friction plate, and actual transmitted torque.

[0093] Further comprising:

[0094] The target test position completes at least 3 repeated tests, and the test data is averaged after removing abnormal values.

[0095] Further comprising:

[0096] The data preprocessing includes removing invalid values caused by sensor fluctuations and loading interruptions, and performing mean value calculation and smoothing processing on repeated data.

[0097] Specifically, abnormal data interference caused by sensor fluctuations in dynamic testing is filtered out, which affects the judgment of the transmission torque characteristics. In dynamic testing, sensors are easily affected by test bench vibration, electromagnetic interference, signal transmission delay, etc., and produce instantaneous jump abnormal values. If the original data is directly used, it will misjudge the state of temperature exceeding the standard and transmission torque interruption, etc., resulting in distorted test conclusion.

[0098] By removing invalid values caused by sensor fluctuations and loading interruptions, more than 90% of non-target working condition data can be filtered out: for example, removing false high temperature signals caused by electromagnetic interference to avoid false triggering of the cooling process; removing torque drop data during loading interruption to ensure that only effective samples in stable transmission torque state are retained. This effect guarantees the strong correlation between data and clutch target position transmission torque characteristics from the source, laying a reliable foundation for subsequent analysis.

[0099] Figure 2 is a structural diagram of a clutch transmission torque characteristic dynamic testing system provided by one or more embodiments of the present application.

[0100] As shown in Figure 2 , comprising:

[0101] A test environment building module, a working condition presetting module, a torque loading and data collecting module, a temperature threshold judging module, and a result generating module;

[0102] The test environment building module is used for building a test bench and separating a clutch. The test bench integrates an actuator control module, a multi-dimensional sensing module, and a data collecting module. The separated clutch includes a transmission hung in a direct gear.

[0103] The working condition presetting module is used for presetting working condition parameters. The working condition parameters include an output dynamometer target speed N, an input dynamometer target speed N1, and a clutch actuator target initial position P0.

[0104] A torque loading and data collection module is configured to obtain a preset target torque loading strategy.

[0105] According to the preset target torque loading strategy, the clutch actuator current position is controlled to make the clutch friction pair relative movement, and test data is collected.

[0106] A temperature threshold judgment module is configured to obtain a preset temperature threshold.

[0107] According to the clutch temperature, it is judged whether the clutch reaches the preset temperature threshold.

[0108] If no, the preset target torque loading strategy is continued to be executed.

[0109] If yes, a target test position is obtained, and target test position test data is generated.

[0110] A result generation module is configured to preprocess the test data according to the target test position test data, and generate full-position test results.

[0111] Specifically, the temperature of the friction plate is monitored in real time by the temperature sensor, and whether to enter the test state is judged in combination with the preset threshold, so that the real vehicle level test temperature interval can be accurately maintained, such as avoiding distortion of cold state test data and high temperature heat recession interference, and the environmental sensitivity problem that heat is lost quickly and temperature cannot be stabilized in static test is completely solved.

[0112] When the temperature does not reach the threshold, the loading and heating are automatically continued, and when the threshold is reached, the target position test is triggered immediately, so that the adaptive switching of heating and testing is realized, manual intervention for temperature judgment is not needed, and the automation degree of the test process is improved.

[0113] Figure 3 FIG. 1 is a structural schematic diagram of a clutch torque transmission characteristic dynamic automatic test method bench test device according to one specific embodiment of the present application.

[0114] As shown in FIG. 1, the method comprises the following steps: Figure 3

[0115] 1. When testing, first hang the transmission into the direct gear (gear ratio is 1), and separate the clutch.

[0116] 2. Control the output dynamometer to reach the target speed N, and the input dynamometer speed target speed N+10.

[0117] 3. Run the automatic test program, and the automatic program logic is as follows:

[0118] ​3.1 Use computer to control clutch actuator position through transmission controller (TCU), make clutch transmit 10% rated torque, at this time, because there is speed difference between clutch driven plate, flywheel and pressure plate, heat is generated by friction to make clutch temperature rise, determine whether clutch reaches target temperature through temperature sensor reading, after reaching target temperature, separate clutch to prepare for test, if not, continue to rise temperature.

[0119] 3.2 Use computer to control clutch actuator to engage target test position through transmission controller (TCU), wait for 3s after input dynamometer torque sensor value is stable, torque measured by torque sensor at this time is maximum transmission torque under target position of clutch, separate clutch, determine whether clutch temperature is in test temperature range, if meet the condition, continue to test, if not, enter 3.1 to rise temperature.

[0120] Carry out maximum transmission torque under each engagement position of clutch actuator in turn.

[0121] Specifically, through multi-dimensional sensing module integrating temperature sensor, input dynamometer torque sensor, clutch actuator position sensor and double speed sensor, four types of core parameters of temperature, torque, position and speed difference are synchronously collected, combined with precise control of TCU on actuator position, closed-loop test logic of parameter input-state feedback-dynamic adjustment is constructed. Compared with single torque-speed collection of static test, through influence of correctable temperature change and position deviation on transmission torque characteristics, test error of core data such as maximum transmission torque is significantly reduced.

[0122] Figure 6 It is an electronic device structure block diagram of a clutch transmission torque characteristic dynamic test method provided by one or more embodiments of the application.

[0123] As shown in Figure 6 , the application provides an electronic device, which comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus;

[0124] The memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of a clutch transmission torque characteristic dynamic test method.

[0125] The application also provides a computer readable storage medium, which stores a computer program executable by an electronic device, and when the computer program runs on the electronic device, the electronic device executes the steps of a clutch transmission torque characteristic dynamic test method.

[0126] For the method embodiments, the description is made in a series of action combinations for simplicity and clarity, but those skilled in the art should know that the present application is not limited to the action sequence described, because according to the present application, certain steps can be performed in other sequences or at the same time. In addition, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential to the present application.

[0127] From the above description of the embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software and the necessary general hardware platform. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments of the present application.

[0128] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for dynamically testing the torque transmission characteristics of a clutch, characterized in that The method comprises the following steps: Step S1, a test bench is built and a clutch is separated, the test bench integrates an actuator control module, a multi-dimensional sensing module and a data acquisition module, the separated clutch comprises: the transmission is engaged in direct gear; Step S2, presetting working condition parameters, the working condition parameters comprise an output dynamometer target speed N, an input dynamometer target speed N1 and a clutch actuator target initial position P0; Step S3, a preset target torque loading strategy is acquired; According to the preset target torque loading strategy, the current position of the clutch actuator is controlled, the relative movement of the clutch friction pair is realized, and test data is collected at the same time; Step S4, a preset temperature threshold is acquired; According to the test data, it is judged whether the clutch reaches the preset temperature threshold; If no, the preset target torque loading strategy is continuously executed; If yes, a target test position is acquired, and target test position test data is generated; Step S5, according to the target test position test data, the test data is preprocessed, and full-position test results are generated.

2. The method of claim 1, wherein In the step S1, the actuator control module comprises position and pressure dual-mode regulation and control; The multi-dimensional sensing module comprises an actuator position sensor, a pressure plate pressure sensor, a double-speed sensor and a friction plate temperature sensor.

3. The method of claim 1, wherein, In the step S2, the working condition parameters further comprise a clutch rated transmission torque T and a target speed range, the input dynamometer can be set in constant speed or dynamic fluctuation mode, and the actuator target initial position P0 corresponds to the clutch separation state.

4. The method of claim 1, wherein, In the step S2, the speed difference between the output dynamometer target speed and the input dynamometer target speed is kept within a target threshold, and the relative position of the clutch friction pair is acquired.

5. The method of claim 1, wherein: In the step S3, the test data comprises real-time actuator position, actual pressure plate pressure, flywheel and driven disc speed difference, real-time friction plate temperature, clutch temperature and actual transmission torque.

6. The method of claim 1, wherein: In the step S4, the target test position completes three repeated tests, and the average value is taken after removing abnormal values from the test data.

7. The method of claim 1, wherein, The data preprocessing comprises removing invalid values caused by sensor fluctuations and loading interruptions, and performing mean value calculation and smoothing processing on repeated data.

8. A dynamic testing system for clutch torque transmission characteristics, characterized in that It comprises: a test environment building module, a working condition presetting module, a torque loading and data acquisition module, a temperature threshold judging module and a result generating module; The test environment building module is used for building a test bench and separating a clutch, the test bench integrates an actuator control module, a multi-dimensional sensing module and a data acquisition module, and the separated clutch comprises: the transmission is engaged in direct gear; The working condition presetting module is used for presetting working condition parameters, the working condition parameters comprise an output dynamometer target speed N, an input dynamometer target speed N1 and a clutch actuator target initial position P0; The torque loading and data acquisition module is used for acquiring a preset target torque loading strategy; According to the preset target torque loading strategy, the current position of the clutch actuator is controlled, the relative movement of the clutch friction pair is realized, and test data is collected at the same time; The temperature threshold judging module is used for acquiring a preset temperature threshold; According to the clutch temperature, it is judged whether the clutch reaches the preset temperature threshold; If no, the preset target torque loading strategy is continuously executed. If yes, a target test position is acquired, and target test position test data is generated. A result generation module is configured to preprocess the test data according to the target test position test data, and generate full-position test results.

9. An electronic device, comprising: Comprise: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory complete mutual communication through the communication bus; The memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the clutch torque transmission characteristic dynamic test method in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The memory stores a computer program executable by the electronic device, and when the computer program runs on the electronic device, the electronic device executes the steps of the clutch torque transmission characteristic dynamic test method in any one of claims 1-7.

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