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近几年来,汽车电系故障,尤其是灯系、充电系故障,呈大幅度上升的趋势,严重地影响着汽车的正常运行和行驶安全,所以驾驶人员和维修人员应予以高度重视,严加防范和正确排除。1 故障现象 a.夜间行车时开了前照灯后,前照灯在开始的2h内较亮,但随后即逐渐变暗,且其亮度随着发动机转速的变化而变化。此时,如开刮水器,则刮水器电动机运转无力。汽车夜间行驶几小时后,如发动机熄火,起动机不能起动发动机,第二天也常需要用推车或手摇
In recent years, the failure of the automotive electrical system, especially the lamp, charging system failure, showed a substantial upward trend, seriously affecting the normal operation of the car and driving safety, so drivers and maintenance personnel should be highly valued, strictly Prevent and correct. 1 Symptom a. When the headlamps were turned on at night, the headlamps were brighter in the first 2 hours, but then gradually dimmed, and their brightness changed as the engine speed changed. At this point, if the wiper is on, the wiper motor runs poorly. A few hours after driving at night, such as the engine flameout, the starter can not start the engine, the next day often need to use the cart or hand crank