Quantitative evaluation method for light distribution performance of automobile headlamps

Abstract

The invention relates to the field of motor vehicle lighting, in particular to a method for evaluating the performance of a headlight. A quantitative evaluation method for the light distribution performance of automobile headlights, which establishes a light distribution database for vehicle headlights and divides the light distribution performance of headlights into several levels; calculates the relative indicators of various performance parameters of all headlights; weighted calculation Relative index to obtain the comprehensive score of light distribution performance of the headlamp: obtain the comprehensive score of the light distribution performance of the headlamp to be evaluated through experiments; compare the comprehensive score of the light distribution performance of the headlamp to be evaluated with the light distribution performance of the headlamp in the database The comprehensive score is compared to obtain the level of the headlamp to be evaluated. The present invention sets a set of standards. According to the standards, multiple performance parameters of the light distribution performance of the headlights are integrated into an intuitive performance level, and the comparison results of different headlight performances can be directly obtained through quantitative detection, so that ordinary users can It is very intuitive to use the comparison results to select the headlights, and objectively and quantitatively evaluate the quality of each headlight.

Description

Technical field [0001] The invention relates to the field of motor vehicle lighting, in particular to a method for evaluating the performance of a headlamp. Background technique [0002] At present, my country's national compulsory certification for automobile headlight products is divided into three standards according to the type of light source of the headlight. Due to the differences in the detection technology of the three standards, the performance of headlamps with different light sources cannot be compared. Moreover, the three standards only stipulate the lower limit of the headlamp illuminance requirements, and can only make a qualitative judgment on the qualification of the headlamp light distribution, and it is impossible to further evaluate the excellent degree of the headlamp light distribution performance that meets the qualified requirements. Compare. [0003] More and more research institutions and automobile manufacturers in the world are trying to develop a more...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a quantitative evaluation method for the light distribution performance of automobile headlamps. Multiple performance parameters of light distribution performance of headlights are integrated into an intuitive performance level, so that ordinary users can intuitively use the comparison results to select headlights, and objectively and quantitatively evaluate the quality of each headlight

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