Reliability Analysis of a Metro Braking Control System based on Fuzzy GO Method

A braking control system is an essential part of urban rail vehicle braking systems. Due to the uncertainty of operational data, direct analysis can affect the authenticity of system reliability. To solve the deviation of system reliability analysis caused by uncertainty, GO Methodology is combined with fuzzy theory to establish the GO graph model of the system according to the characteristics of the braking control system. The membership function of the fuzzy success rate of the system is obtained by using the modified signal flow calculation method combined with the fuzzy number algebraic calculation method, and the system fuzzy success rate with high reliability is selected. The calculated results can provide guidance and suggestions for system maintenance, and they have strong engineering practicability.