文档介绍：2014届毕业设计(论文)汽油发动机管理系统故障诊断与维修专业:助学站点:考籍号:姓名:指导教师:2014年10月摘要发动机是汽车的动力源,它是将一种形式的能量转化为机械能的机器。本文对电喷发动机管理系统各部分的组成和原理进行了论述,并以***M7系列发动机管理系统为例,浅谈电喷发动机常见故障的诊断和分析方法。本文的重点是通过两个实际案例,迈腾发动机抖动故障和低温时速腾车无法启动故障,介绍了电喷发动机的常见故障的诊断思路和诊断过程。关键词:汽油发动机管理系统;传感器;ECU;执行器;故障诊断ABSTRACTEngineisthepowersourceoftheautomobile,,***M7seriesenginemanagementsystemasanexample,,MagotanenginejitterfaultandlowtemperatureSagitarcarwouldn'tstartfault,:gasolineenginemanagementsystem;sensor;ECU;actuator;faultdiagnosis目录第1章绪论·······················································································································································································································································································································································································································