项目一 汽车电气系统总体认识 ..................................................................... 1 __eol__任务一 认识汽车电气系统 ········································································· 1 __eol__知识点一 汽车电气设备的发展 ................................................................................. 1 __eol__知识点二 汽车电气系统的组成与特点 ..................................................................... 4 __eol__知识点三 认识汽车电气设备 ..................................................................................... 7 __eol__任务二 汽车电气系统故障诊断基础知识 ······················································ 10 __eol__知识点一 汽车电气系统常见故障类型 ................................................................... 10 __eol__知识点二 汽车电气系统故障诊断常用工具 ........................................................... 14 __eol__知识点三 汽车电气系统故障诊断方法 ................................................................... 18 __eol__知识点四 检查电路 ................................................................................................... 21 __eol__项目二 蓄电池的检修 ................................................................................. 27 __eol__任务一 蓄电池的维护与检测 ····································································· 28 __eol__知识点一 蓄电池基础知识 ....................................................................................... 28 __eol__知识点二 蓄电池工作状况的检查 ........................................................................... 31 __eol__知识点三 蓄电池的拆装与清洁 ............................................................................... 34 __eol__知识点四 测量电解液相对密度 ............................................................................... 35 __eol__任务二 蓄电池的充电与常见故障诊断 ························································· 37 __eol__知识点一 蓄电池的充电 ........................................................................................... 38 __eol__知识点二 蓄电池常见故障诊断与排除 ................................................................... 41 __eol__知识点三 蓄电池的应急跨接起动 ........................................................................... 43 __eol__项目三 交流发电机及调节器的检修 ............................................................ 44 __eol__任务一 交流发电机及调节器的维护与检修 ··················································· 44 __eol__知识点一 交流发电机基础知识 ............................................................................... 44 __eol__知识点二 电压调节器的工作原理及其维护 ........................................................... 50 __eol__知识点三 交流发电机主要部件的检测 ................................................................... 54 __eol__任务二 充电系统常见故障诊断 ·································································· 57 __eol__知识点一 充电系统电路分析 ................................................................................... 57 __eol__知识点二 充电系统故障诊断与排除 ....................................................................... 59 __eol__项目四 起动系统的检修 .............................................................................. 62 __eol__任务一 起动系统的维护与检修 ·································································· 62 __eol__知识点一 起动系统的功用与组成 ........................................................................... 62 __eol__知识点二 起动系统的作用及工作原理 ................................................................... 64 __eol__知识点三 减速起动机 ............................................................................................... 70 __eol__任务二 起动系统常见故障诊断 ·································································· 72 __eol__知识点一 起动机的拆装、检修与调整 ................................................................... 72 __eol__知识点二 起动机转动不畅的诊断与排除 ............................................................... 80 __eol__项目五 点火系统 ......................................................................................... 83 __eol__任务一 点火系统的检修 ············································································ 83 __eol__知识点一 点火系统的结构与工作原理 ................................................................... 83 __eol__知识点二 点火线圈的检测 ....................................................................................... 86 __eol__知识点三 火花塞的更换与检测 ..............