本文从汽车运用中故障概率的统计资料出发,抓住运行时间最长,能标志车辆整个使用寿命的随机故障阶段进行重点分析,分析中引用了矩函数。本文对汽车故障分析具有一定的指导意义。 Based on the statistical data of fault probability in the operation of vehicles, this paper focuses on the stochastic fault stage which has the longest running time and can mark the entire service life of the vehicle. The moments function is quoted in the analysis. This article has some guiding significance to the automobile breakdown analysis.