Clutch torque estimation method and system
The relationship between specific pressure and speed and temperature is established through the friction plate temperature simulation, which solves the problem of low clutch torque prediction accuracy in the prior art, and realizes more accurate torque calculation, providing reliable comparison data for the experiment.
CN114638058BActive Publication Date: 2024-12-24BEIJING ELECTRIC VEHICLE
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Patent Information
- Application Number
- CN202210138586.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-02-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2042-02-15
AI Technical Summary
Technical Problem
In the prior art, when predicting clutch torque, the thermal field distribution is ignored, resulting in low accuracy and cannot accurately reflect the torque index of the friction pair.
Method used
Through the friction plate temperature simulation, a functional relationship between the friction plate specific pressure, rotation speed and temperature field is established, and the relationship between the specific pressure of the friction pair and the friction coefficient and temperature is determined, and the output torque of the clutch is calculated.
Benefits of technology
The accuracy of clutch torque prediction is improved, accurate comparison data is provided for subsequent designs, and the reliability of the experiment is enhanced.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN114638058B_ABST
Abstract
The present invention proposes a clutch torque estimation method and system. The method includes: obtaining the thermal field distribution of the friction plate in the clutch; determining the first relationship curve between the specific pressure of the friction pair and the average temperature of the working surface of the friction plate under a predetermined working condition, and the second relationship curve between the friction coefficient of the friction pair and the average temperature of the working surface of the friction plate under different specific pressures according to the thermal field distribution; obtaining the relationship between the output torque of the clutch and the average temperature of the working surface of the friction plate according to the first relationship curve and the second relationship curve; estimating the output torque of the clutch through the relationship between the output torque of the clutch and the average temperature of the working surface of the friction plate according to the actual temperature of the clutch. The method of the present invention can obtain the relationship between the torque of the friction pair and the thermal field, and then predict the output torque of the clutch, and predict the torque of the friction pair through the temperature field of the clutch friction plate, providing comparative data for related experiments.
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