Automatic adjusting device for left front lamp light in night meeting of automobiles

一种汽车夜间会车左前灯光自动调节装置

Abstract

The utility model provides an automatic adjusting device for left front lamplight in night meeting of automobiles. The automatic adjusting device comprises an optical sensor, a triode, a single chip microcomputer and a relay, the relay is arranged between a lamplight ECU (electronic control unit) and a left front high beam, the optical sensor is connected onto a port a and a port b of the single chip microcomputer, a base electrode of the triode is connected to a port d of the single chip microcomputer, a collecting electrode of the triode is connected with the relay, an emitting electrode of the triode is connected to a negative electrode, a normally-closed contact is connected when the triode is cut off, the normally-closed contact is disconnected when the triode is disconnected, further, the single chip microcomputer is provided with a delay unit set delay time, and the delay time is connecting time of the normally-closed contact when a resistance value of the optical sensor reaches a set resistance value. When meeting of the automobiles is performed, only the left front high beam is cut off, a right front high beam is still kept, so that an opposite driver cannot be dazzled, the driver can clearly see farther road surface conditions, and night driving safety is ensured.
本实用新型提出了一种汽车夜间会车左前灯光自动调节装置,该装置包括光传感器、三极管、单片机和设置在灯光ECU和左前远光灯之间的继电器,所述光传感器连接到单片机端口a和端口b上,所述三极管的基极连接到单片机端口d,所述三极管的集电极与继电器连接,所述三极管的发射极接到负极,所述继电器在三极管截止时常闭触点闭合,在三极管导通时常闭触电断开,作为进一步改进,所述单片机设有设置延迟时间的延迟单元,所述延迟时间为光传感器电阻值达到设定电阻值时到常闭触点闭合的时间。本实用新型通过会车时只切断左前远光灯,右前依然为远光灯,避免给对方驾驶员造成炫目的同时,让驾驶员能够看清较远的路面状况,确保夜间行车安全。

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