Structure and Composition

The lighting system is essential to car driving and,to improve the car driving speed and ensure the car driving safety,there are various lighting equipment installed in the car:headlamp,daytime running light,direction indicator lamp,fog lamp,reversing light,braking light,interior lighting and so on.

Lighting system is mainly composed of three parts:light switch,BCM and car lamp.The usual control logic,is shown in Fig.3.9.

The operation of light switch:rotate the end of switch and turn on the width lamp and headlight successively.There are two gears in the control rod of high beam,and when the low beam light is used,push downward to change it to high beam and high beam light is on and at the same time,the indicator light on the panel illuminates;after reset,move upward gently to high-low gear,namely,making the high beam light flicker for overtaking other cars and when released,it reset immediately.(https://www.daowen.com)

Fig.3.9 Control Logic of Lighting System