一种电动汽车充电接口插拔寿命预测方法及系统
By constructing a 3D model of the charging interface and combining user plug-in/plug-out data with the Archard wear model, the problem of the disconnect between charging interface life prediction and actual usage scenarios was solved, achieving accurate prediction of charging interface life and a true reflection of wear status.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHONGQING VEHICLE TEST & RES INST CO LTD
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the lifespan prediction of electric vehicle charging interfaces is out of touch with actual usage scenarios, the accuracy of the prediction results is insufficient, and it is impossible to quantify the non-uniform contact pressure distribution and micro-wear differences of the interface contact surface under different operating conditions.
By acquiring the geometric posture deviation and contact pressure distribution during the plugging and unplugging process of the charging gun and charging interface, a three-dimensional model is constructed using the finite element static simulation method. Typical working conditions are extracted using the user's historical plugging and unplugging operation dataset. The micro wear amount is calculated based on the Archard wear model, and the wear amount is accumulated to generate a wear accumulation distribution map, thereby achieving accurate prediction of the charging interface life.
It accurately characterizes the interface stress under different gun tip postures, improves the accuracy and reliability of charging interface life prediction, fully restores the wear and tear during actual use, and significantly improves the accuracy and reliability of prediction.
Smart Images
Figure CN122221612B_ABST