河北工业科技2024，Vol.41Issue(4)：306-312,7.DOI:10.7535/hbgykj.2024yx04009
基于改进滑模控制策略的汽车LED前照灯驱动器设计
Design of automobile LED headlamp driver based on improved sliding mode control strategy
摘要
Abstract
In order to realize the stepless adjustment of the high and low beam illumination and color temperature of automobile LED headlamps,a new LED headlamp driver design scheme based on an enhanced sliding mode control strategy was proposed.The main circuit topology adopt a four-channel independent Boost converter to control the low beam warm light,low beam cold light,high beam warm light and high beam cold light,respectively.A mathematical model of the circuit topology was constructed,and a new composite sliding mode control strategy was proposed.On this basis,the software and hardware designs were carried out,and a 36 W test prototype was developed to verify the control strategy through experiments.The results show that the LED headlamp driver based on the proposed composite sliding mode control strategy of the new reference duty cycle modulation can adjust the illumination and color temperature of the LED headlamp by setting the reference current value and the color temperature given coefficient,respectively.The output voltage ripple of the low beam cold and warm LED is about 1 V,and the response time is only about 0.1 s.The system has stable output,fast response speed and smooth switching.The research results can provide reference for the automation design of automobile LED headlamp.关键词
电力电子技术/驱动器/汽车LED前照灯/Boost变换器/滑模控制Key words
power electronics/driver/automobile LED headlamp/Boost converter/sliding mode control分类
信息技术与安全科学引用本文复制引用
李亚卓,程旭峰,韩铭洋..基于改进滑模控制策略的汽车LED前照灯驱动器设计[J].河北工业科技,2024,41(4):306-312,7.基金项目
教育部产学合作协同育人项目(220501768073535) （220501768073535）
河北省重点研发计划项目(20312205D) （20312205D）
