重庆大学学报Issue(2)：31-36,45,7.DOI:10.11835/j.issn.1000-582X.2014.02.005
PWM调制方案对无刷直流电机电动汽车再生ABS的影响
摘要
Abstract
To study the effect of the PWM modulation scheme on the regenerative anti-lock braking system (RABS)of the EV driven by a permanent magnet brushless DC motor,based on the analysis of the principle of the regenerative braking of the brushless DC motor under a single and double switching PWM modulation scheme,respectively,a method to adjust the PWM duty cycle is proposed to prevent drive wheels from locking during regenerative braking.A regenerative braking dynamics model of a single wheel vehicle is established,and a double-loop control model of the RABS is designed.The outer loop controls the wheel slip ratio,and the inner loop controls motor braking current.As an example of the EV’s braking on ice-covered road,a simulation test is conducted for the RABS under a single and double switching PWM modulation scheme respectively.The result shows that the RABS has a shorter braking distance and more energy recovery under a double switching PWM modulation than a single.关键词
电动汽车/再生制动/制动防抱死系统(ABS)/无刷直流电机/PWM调制方案Key words
electric vehicles/regenerative braking/anti-lock braking system/permanent magnet brushless DC motor/PWM modulation scheme分类
交通工程引用本文复制引用
赵国柱,韩英,魏民祥,李玉芳..PWM调制方案对无刷直流电机电动汽车再生ABS的影响[J].重庆大学学报,2014,(2):31-36,45,7.基金项目
国家自然科学基金资助项目（51005113）；江苏省农机局科研启动基金项目 （）
