本文根据可靠性学科的基本原理,结合最近几年所进行的汽车可靠性考核评定试验工作,提出了一些定量的评价指标,如:平均故障间隔时间(里程)、平均首次故障时间(里程)、平均维修时间、有效度和平均维修费用等。实践证明,它们是评价汽车可靠性的有效指标,并为进一步制订标准提供了重要的前提。 According to the basic principle of reliability discipline and the test work of vehicle reliability assessment in recent years, some quantitative evaluation indexes are proposed, such as mean time between failures (Mileage), average time to failure (Mileage) Average maintenance time, validity and average maintenance costs. Practice has proved that they are effective indicators to evaluate the reliability of vehicles and provide an important prerequisite for further development of standards.