CCBⅡ制动机系统故障诊断技术

Fault Diagnosis Technology of CCBⅡ Brake System

为切实解决CCBⅡ制动机并发性故障与非参数部件诊断性难题,确保行车的安全性与稳定性。本文基于制动机系统构建了全局性解析冗余关系,以此诊断非参数部件的故障,并采用差分进化算法估算多项待选故障参数,通过对比平均适应函数值,定位各项故障具体位置与形态,从而实现制动机系统故障诊断。通过机车系统制动诊断实践分析,发现此方法具有较高的有效性、可靠性、可行性,值得大力推广与广泛应用。

In order to solve the problems of concurrency fault and nonparametric component diagnosis of CCBⅡ brake,and ensure the safety and stability of driving.In this paper,based on the brake system,the global analytical redundancy relationship is constructed to diagnose the faults of nonparametric components,and the differential evolution algorithm is used to estimate a number of fault parameters to be selected,and the average adaptive function values are compared.Locating the specific position and shaping of each fault,so as to realize the fault diagnosis of brake system.Through the analysis of braking diagnosis practice of locomotive system,it is found that this method has high effectiveness,reliability and feasibility,and is worth popularizing and widely used.