汽车高压继电器粘连失效故障树分析  

Automotive High-Voltage Relay Adhesion Failure Fault Tree Analysis

作　　者：张长涛 房元 李威 曲振宁 慈伟程 Zhang Changtao;Fang Yuan;Li Wei;Qu Zhenning;Ci Weicheng(Global R&D Center,China FAW Corporation Limited,Changchun 130013;National Key Laboratory of Advanced Vehicle Integration and Control,Changchun 130013)

机构地区：[1]中国第一汽车股份有限公司研发总院,长春130013 [2]高端汽车集成与控制全国重点实验室,长春130013

出　　处：《汽车文摘》2024年第9期32-37,共6页Automotive Digest

摘　　要：针对电动汽车高压继电器粘连失效故障现象,采用故障树分析法(FTA)进行相关可靠性分析。通过分析高压继电器所在电气系统,建立继电器粘连失效故障树模型,对其进行定性及定量分析。最后求解故障树最小割集及顶事件故障概率,并依据重要度分析找出引起粘连失效的薄弱环节。In view of the electric vehicle high-voltage relay adhesion failure phenomenon,Fault Tree Analysis(FTA)is used to perform the relevant reliability analysis.By analyzing the electrical system in which the high-voltage relay is located,a relay Adhesion failure fault tree model is built to analyze it qualitatively and quantitatively.Finally,the minimum cut set of the fault tree and the top event failure probability are solved,and the weak links causing the adhesion failure are identified based on the importance analysis.

关 键 词：高压继电器 粘连失效 故障树分析法 

分 类 号：U469.722[机械工程—车辆工程]