Method for autoleveling vehicle high-pressure gas discharge lamp and device thereof

Abstract

The invention discloses a method for autoleveling a vehicle high-pressure gas discharge lamp and a device thereof. The method comprises the following steps of: installing an illumination angle autoleveling part on each side of a left head lamp and a right head lamp of the vehicle; continuously collecting the pitching angle variation of the vehicle body in the vehicle traveling process by an autoleveling function module and calculating a correction data according to the variation; giving the adjustment quantity to a motor drive circuit according to the correction data; and outputting a drive voltage according to the adjustment quantity and driving a leveling electric motor to compensate a horizontal angle. The device comprises the autoleveling function module consisting of a sensor, a dataprocessor and the electric motor drive circuit, the leveling motor and a power supply module, wherein the leveling electric motor and the high-pressure gas discharge lamp assembly are connected and synchronously rotate. In the invention, the pitching stance of the vehicle body is directly acquired by a horizon sensor, and the leveling motor is driven to compensate the horizontal angle. The invention has the advantages of simplifying the harness of the vehicle body, lowering the whole cost and reducing the interference and improving the reliability.

Description

technical field [0001] The invention relates to an automatic leveling method and device for a high-pressure gas discharge lamp used in vehicles. Background technique [0002] High-pressure gas discharge HID (High Intensity Discharge) lamps such as xenon high-pressure gas discharge lamps have the advantages of high light efficiency, good color rendering, and long life, and have been widely used in the automotive field. [0003] In order to prevent the problem of increasing the possibility of glare to oncoming vehicles caused by the increase of light intensity, the WP29 organization (full name: Road Traffic Subcommittee of the Inland Transport Committee of the Economic Commission for Europe of the United Nations Economic and Social Council) has more than 28 contracting parties. The subordinate vehicle structure working group, referred to as UN / ECOSO / ECE / TRANS / SC.1 / WP29) has promulgated corresponding regulations, requiring higher requirements for the lighting angle of vehicles ...

AI Technical Summary

Problems solved by technology

Although it can realize the automatic adjustment of the irradiation angle of the automobile headlights, the cost is high due to the complexity of the body system

And long wiring is easy to introduce interference, so the reliability is low

Another shortcoming is: because it is a controller that controls the level adjustment of the left and right headlights, if a part of the controller is damaged, the two lights will not be adjusted, which will bring hidden dangers to safe driving

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