关键词: 新能源商用车；雨刮故障；故障诊断；故障排除

Abstract: The purpose of this study is to explore the failure reasons of new energy commercial vehicle wiper not working, and put forward an effective fault diagnosis method. Using the method of combining theory and practice, through the in-depth analysis of the working principle of the wiper device, combined with the real car fault cases, the key factors that may lead to the failure of the wiper are identified. It is found that circuit failure and motor damage are the main reasons. In order to solve this problem, the fault diagnosis process and preventive measures are put forward. The results of this study are of great significance for the maintenance and troubleshooting of new energy commercial vehicle wiper devices, and provide theoretical support and practical guidance for improving the safety and reliability of new energy commercial vehicles. Based on the diagnostic results, corresponding maintenance suggestions and conclusions are given, and powerful technical support and solutions are provided for maintenance personnel.

Key words: new energy commercial vehicles; wiper failure; fault diagnosis; fault exclude