Fog lamp switching control method and fog lamp switching device for LED headlamp

Abstract

The invention relates to a fog lamp switching control method and a fog lamp switching device for an LED headlamp. The method is finished through the switching device arranged in front of an LED light source. The fog lamp switching device comprises a filter, a filter bracket and a rotating shaft, wherein the filter bracket is for supporting the filter, and the rotating shaft is used for driving the filter to rotate. The control method comprises the following steps of triggering the rotating shaft to rotate and driving the filter to rotate to a position deviated from a lighting area of the LED light source when receiving a normal lighting instruction; and triggering the rotating shaft to rotate and driving the filter to rotate to a position vertical to the lighting position of the LED light source when receiving a fog lamp lighting instruction. According to the invention, as the optical and mechanical technologies are combined together, the design space of the lamp is simplified, lamp cost of the lamp are lowered, the design cost is lowered, the mechanical principle and the optical principle are combined together and the LED light source and the filter are used together, the switching between normal lighting and fog lamp lighting is realized. The structural design of the fog lamp switching device for the LED headlamp is skillful and compact and is designed according to the simplest principle collocation and the most economic mode concept.

Description

technical field [0001] The invention belongs to the field of vehicle lamp lighting, and in particular relates to a fog lamp switching control method used in LED headlights and a switching device thereof. Background technique [0002] Automobile lighting will set different corresponding lights according to different road conditions, in order to seek the best combination of lighting and safety. [0003] LED headlights refer to car lights that use LEDs (light-emitting diodes) as light sources. LEDs are widely used in the field of car lights because of their advantages such as high brightness, low power consumption, long life, and rich color types. At present, many high-end cars have begun to adopt matrix LED headlights. The lowest advantage of matrix LED headlights is the modularization of light sources and high controllability. [0004] Fog lights are a kind of signal lights installed in the headlights of automobiles. The main function is to make the vehicle easier to recogni...

AI Technical Summary

Problems solved by technology

In the technical design of switching between the two, there are two lighting structures respectively. This design method is complex in structure and occupies a large space; there is a method of circuit switching to control the light source to realize lighting switching. The focus is on improving the design of the circuit part

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