汽车发电机的作用是为汽车上的用电设备供电及为蓄电瓶充电。汽车上最初使用的是直流发电机,直到七十年代末、八十年代初,才被三相交流发电机代替,现在汽车上的发电机均是三相同步交流发电机,经桥式整流后变为直流电供汽车上的用电器(如点火设备、喷油设备、电子系统控制仪器、安全与舒适电气装置、照明设备与技术保养电子设备等。)使用。 The role of a car generator is to power the car’s electrical equipment and charge the battery. The car was originally used in the DC generator until the late seventies, early eighties, was replaced by three-phase alternator, and now the car is a three-phase generator alternator, the bridge rectifier Into a direct current for electrical appliances on the car (such as ignition equipment, fuel injection equipment, electronic system control equipment, safety and comfort electrical installations, lighting and technical maintenance of electronic equipment, etc.).