汽车电子点火系统的检修.pdf

. 汽车点火系统的检修 目 录 一 汽车电子点火系统的概述 1 汽车点火系统的发展历程 ·············································· 1· 2 电子点火系统的基本组成及工作原理 ································ 1· 二 电子点火系统常见故障诊断 ················································ 5· 1 电子点火系的常见故障 ················································· 5· 2 电子点火系的故障诊断 ················································· 8· 三 电子点火系统故障诊断与维修实例 ······································· 13· 1 丰田轿车 (采用无触点式点火系统 )点火系统检查 ·················· 13· 2 红旗轿车点火线圈和点火器的检测 ··································· 13· 结论 ··················································································· 15· 致谢 ··················································································· 16· 参考文献 ············································································ 17· . . 摘 要 现代汽车电子控制技术是汽车技术和电子技术的相结合， 是现代工业 发展与高新技术发展的产物， 汽车电子化程度的高低从某种程度上反映了 汽车水平的高低。 目前，电子技术的应用已经深入到汽车的所有系统， 使 汽车的技术性能、 经济性和舒适性都有了很大提高， 而电子点火系统的应 用能更好的提高汽车的动力性、 燃油经济性、 降低废气排放。 本文介绍了 现代电子点火系统的发展历程、优点、分类、构造、工作原理，系统分析 了电子点火系统的常见故障， 并结合实际分析了典型故障产生的原因， 并 给出了具体的故障排除方法。 关键词 ：电子点火系统； 故障诊断 排除 . . 一 汽车电子点火系统的概述 1. 点火系统的发展历程 在汽油机发动机， 燃烧室的火花塞两极间加上直流电压后， 电极间的 气体便发生电离现象， 随着两极间的间隙被击穿而产生电火花，