Automatic horizontal dimming system for automotive headlamps and dimming method

Abstract

The invention relates to an automatic horizontal dimming system for automotive headlamps and a dimming method. The automatic horizontal dimming system comprises an automobile height sensor and two direct current motors, wherein the automobile height sensor is used for detecting the inclined posture of an automobile body; the direct current motors are used for controlling the irradiation direction of the headlamps; the two direct current motors are both provided with a driving control module; a signal output end of the automobile height sensor is connected with a signal input end of the driving control module; the signal output end of the driving control module is connected with the direct current motors in a driving mode; dimming shafts are arranged on rotating shafts of the two direct current motors; end parts of the dimming shafts are respectively connected with dimming brackets of two headlamps of the automobile; and light sources of the headlamps are arranged on the dimming brackets. Compared with the existing dimming system, the automatic horizontal dimming system has the advantages that one controller and one automobile height sensor are saved, high-cost stepping motors are replaced by the low-cost direct current motors, the system structure is more simple, the cost is greatly lowered, and the problems of complex structure and high cost of the existing automatic dimming system are solved.

Description

technical field [0001] The invention relates to an automobile headlamp, in particular to a dimming system, in particular to an automatic horizontal dimming system and a dimming method for an automobile headlamp. Background technique [0002] Automobile headlights are important functional and regulatory parts of automobiles. While illuminating the road ahead, the light of automobile headlights can neither dazzle the oncoming vehicles, but must also illuminate the road ahead to ensure drivability and safety. [0003] However, due to the influence of the car suspension, when the load of the car changes or the speed of the car changes, the inclination angle of the car body relative to the road will often change greatly, which will cause the lighting distance and lighting direction of the low beam to change. . [0004] When the load of the car increases or accelerates, the rear part of the car will drop and the front part will rise, which will cause the light to rise, which wil...

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Problems solved by technology

[0007] The purpose of the present invention is to provide an automatic level dimming system for automobile headlights, the described dimming system is provided with 1 vehicle body height sensor and 2 DC motors, which saves 1 A controller and a vehicle height sensor, and replace the high-cost stepping motor with a low-cost DC motor, the system structure is simpler and the cost is greatly reduced, which is used to solve the complex structure and high cost of the existing automatic dimming system. question

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