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电源车工作性能指标和工作可性直接影响着飞机起动和机动升空,其故障的判断、查找非常困难,针对这个问题,将基于模糊关系方程的故障诊断方法应用于电源车的故障诊断中,通过建立故障征兆与故障原因间的模糊关系方程,利用阈值原则和最大隶属度原则相结合的方法查找故障原因,通过电源车的一个具体故障案例验证表明,该方法可以准确定位故障,提高了电源车故障诊断的效率和准确性。
The working performance index and workability of the power car directly affect the start-up and maneuvering of the aircraft. It is very difficult to judge and find the fault. To solve this problem, the fault diagnosis method based on the fuzzy relational equation is applied to the fault diagnosis of the power car, By establishing the fuzzy relational equation between the fault symptom and the cause of the fault, the principle of the threshold and the principle of maximum membership are used to find out the cause of the fault. The verification of a specific fault case of the power source vehicle shows that the method can accurately locate the fault and improve the power supply Efficiency and accuracy of vehicle fault diagnosis.