典型的汽车起动系由点火开关、起动继电器(以下简称继电器)、起动机、蓄电池、电源开关及连接导线组成(见图示)。起动系工作状况好与坏直接影响到车辆的营运效率,作为驾驶员,若能熟悉了解起动系方面的知识和对途中出现的一般性故障给予排除,将会给自己带来许多方便。由图示可知,当点火开关拨至起动档位时,其电流流通过路径有:蓄电池(+)→起动机电流接柱→点火开夫→继电器点火锁接线端→继电器磁化线圈→搭铁→电源开关→蓄电池(-)。电流通过磁化线圈时,线圈产生吸力,将继 A typical car starting system consists of an ignition switch, a starter relay (hereinafter referred to as the relay), a starter, a battery, a power switch, and a connecting lead (see illustration). Start-up system is good or bad working conditions directly affect the operational efficiency of the vehicle, as a driver, if familiar with the knowledge of the start-up system and on the way to give a general failure to exclude, will bring a lot of their own convenience. As can be seen from the figure, when the ignition switch to the starting gear, the current flow through the path are: battery (+) → starter current access column → → → → ignition ignition switch terminal ignition coil magnetization coil → → Power switch → battery (-). Current through the magnetizing coil, the coil generates suction, will follow