基于售后信息的汽车故障间隔里程分布模型研究  

Research of Mileage Between Failures Distribution Model Base on Customer Service Information

作　　者：张海波[1] 宫锐[1] 

机构地区：[1]东北电力大学机械工程学院,吉林吉林132012

出　　处：《拖拉机与农用运输车》2015年第1期13-15,共3页Tractor & Farm Transporter

摘　　要：根据某车型6个月内在4S店的维修数据,应用最小二乘法首次对其故障间隔里程分布模型进行了参数估计,并采用χ2检验法进行了假设检验,证明该车型故障间隔里程服从威布尔分布,并对此进行了简要的分析,为该车型的可靠性改进设计提供了依据。Based on the after-sale maintenance data of a type of automobile system in six months, the distribution model parameters of mileage between failures are estimated by least square method, and hypothesis testing is done by X2- test method for the first time. It is proved that the mileage between failures of automobile system obeys Weibull distribution. According to brief analysis, a basis is provided for improvement design of the automobile reliability.

关 键 词：汽车 故障间隔里程 可靠性 威布尔分布 

分 类 号：U472[机械工程—车辆工程]