提出了一种车辆发动机的故障数据分析方法,包括同一零件不同故障模式故障分布统计分析方法和平均首次故障工作时间(里程)的估计方法。通过对发动机累积故障数据的分析,可以得到故障件的故障分布规律,预测其平均首次故障时间(里程),并判断故障发生的原因,从而为故障的排除提供依据。应用证明该方法有助于提高发动机的故障诊断效率,降低发动机维修成本。 A fault data analysis method of vehicle engine is proposed, which includes the statistical analysis of fault distribution and the method of estimating the average first fault working time (mileage) in the same part. Through the analysis of engine cumulative failure data, we can get the fault distribution rule of the fault, predict the average first failure time (mileage), and judge the cause of the fault, so as to provide the basis for troubleshooting. The application proves that this method can help improve the efficiency of engine fault diagnosis and reduce the cost of engine maintenance.