一 汽车电气设备,是汽车的重要技术装备之一。其中蓄电池、发电机及其调节器是属于电源部分,分电器、点火线圈及火花塞等,在作用上相当于发动机的消化系统,而起动机,喇叭,各项仪表和大小灯光等,则相当于车辆的指挥系统。车辆在运行中,电源电流是否充足,电压是否正常,既影响点火系的工作,也影响其它电器的使用寿命;而点火系的工作好坏,又严重影响发动机的动力性和经济 A car electrical equipment, is one of the important technical equipment of the car. Including batteries, generators and their regulators are part of the power, distributor, ignition coil and spark plug, etc., in effect equivalent to the engine’s digestive system, while the starter, speakers, instruments and the size of light, etc., is equivalent to Vehicle’s command system. Vehicle operation, the supply current is sufficient, the voltage is normal, both affect the work of the ignition system, but also affect the life of other electrical appliances; and ignition system is good or bad, but also seriously affect the engine power and economy