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针对装甲车辆电源系统模块失效和信号失效不统一的特点,提出了一种多信号模型的改进方法,在此基础上,通过电源系统故障模式影响分析,建立了电源系统测试性模型。基于故障熵理论,利用诊断信息量和费用优化的启发式函数,确立了系统的诊断策略。计算结果表明:该方法对诊断策略的优化是有效的。该方法对装甲车辆电源系统诊断策略的研究具有一定参考意义。
Aiming at the characteristics of armored vehicle power system module failure and signal failure is not uniform, an improved method of multi-signal model is proposed. Based on this, the power system test model is established through the influence analysis of power system fault mode. Based on the theory of fault entropy, a diagnostic strategy of the system is established by using the heuristic function of diagnosis information cost and cost optimization. The results show that this method is effective for the optimization of diagnostic strategies. The method has some reference significance for the research of diagnostic strategy of armored vehicle power system.