摘要
为解决电动汽车电机制动时出现抱死的问题,对全桥调制与半桥调制下永磁无刷直流电机制动转矩进行比较,发现全桥调制下电机制动能量回收具有明显优势;分析了全桥调制下电机制动实现防抱死控制基本原理,利用PID控制设计了基于滑移率控制的电动汽车电机制动ABS控制系统。根据全桥调制下电机制动电气模型,在车辆单轮制动动力学模型基础上,建立了基于Matlab/Simulink的电动汽车电机制动模型。在高、中、低3种附着系数路况以及对接情况下进行仿真,仿真结果表明:系统反应迅速,控制精确;通过PID控制器控制,滑移率保持在理想值,系统稳定性强,能够较好地实现ABS功能。
By comparing the braking torque of permanent magnet brushless DC motor in full and half bridge modulations, the advantages of motor braking energy recovery in full-bridge modulation are obvious. Then the Anti-lock Braking System （ABS） with pure electric braking based on slip-rate in electric vehicle is designed with PID strategy by analyzing the control principle of ABS based on electric braking in full-bridge modulation, so that the problem of wheel lock during braking is solved. A single wheel vehicle dynamics model is developed in Matlab/Simulink based on the braking mathematical model of brushless direct current motor in full-bridge modulation, the model is simulated on the high, middle and low-adhesion road. The results show that the created system has fast response, precise control and good stability, the slip rate is kept within ideal range, the ABS funned effectively.
出处
《现代制造工程》
CSCD
北大核心
2017年第10期41-46,77,共7页
Modern Manufacturing Engineering
基金
江苏省自然科学基金项目(BK20151259)
苏州市科技计划工业应用基础指导项目(SGZ2014019)
常熟市科技计划工业基础项目(CQ201407)
