Reliability Analysis of Vehicle's EPS System Based on GO Methodology

In view of the limitations of the traditional methods of vehicle EPS system reliability assessment,the GO methodology was applied to analyze the system reliability.In this paper,specific analysis steps of the GO methodology were described,the corresponding GO diagram model was built,and a precise quantitative analysis and qualitative analysis were given.Finally,by comparing the analysis of the EPS with that of the FTA(fault tree analysis) and the FMEA(failure modes and effects analysis),accuracy of the GO method was verified.The results show that the Go method is a kind of practical method to analyze the reliability of vehicle's EPS,which can reduce the workload and modeling errors.