1.问题的提出 为了保证启动性能和启动机的寿命,在国产柴油汽车上大部分采用24伏启动机和24伏发电机,但是,不少生产柴油汽车的厂家是采用东风或解放等车的底盘改制的,这些车型是采用12伏供电系统的,其上所有的仪表、照明灯、指示灯、继电器、传感器、暖风电动机、刮水电动机等等都是12伏的,因此,带来了12伏/24伏共用电系的问题。 1. Problems raised In order to ensure start-up performance and start the life of the machine, most of the domestic diesel vehicles with 24-volt starter and 24-volt generator, but many of the manufacturers of diesel vehicles is the use of Dongfeng or liberation of the car Chassis modifications, these models are based on 12-volt power supply system, all the instruments, lights, lights, relays, sensors, heater motor, wiper motor, etc. are all 12 volts, therefore, brought 12 V / 24 V common system problems.