摘要
针对新能源电动汽车制动系统耗能高、能量回收率低等问题,设计电液复合制动系统。基于并行控制策略的思想,提出与之匹配的制动系统控制策略。在Carsim中搭建整车模型,在MATLAB/Simulink中搭建制动系统及控制策略模型,进而建立联合仿真模型,并在NEDC循环工况和紧急制动工况下分别进行仿真。仿真结果表明:所设计的电动汽车电液复合制动系统能够良好运行,制动系统控制策略符合要求,且能量回收率高。
Aiming at the problems of high energy consumption and low energy recovery of braking system of new energy electric vehicle,an electro⁃hydraulic composite braking system was designed.Based on the idea of parallel control strategy,a matching con⁃trol strategy of braking system was proposed.The whole vehicle model was built in Carsim,the braking system and control strategy model were built in MATLAB/Simulink,and then the joint simulation model was built,and the simulations were carried out under NEDC cycle and the emergency braking condition respectively.The simulation results show that the designed electro⁃hydraulic braking system of the new energy electric vehicle can work well,the control strategy of the braking system meets the requirements,and the en⁃ergy recovery rate is high.
作者
刘芳
贾晨光
陈勇
郭立书
LIU Fang;JIA Chenguang;CHEN Yong;GUO Lishu(Hebei University of Technology,Tianjin 300132,China;National Engineering Research Center for Technological Innovation Method and Tool,Tianjin 300401,China;New Energy Automotive Research Center,Hebei University of Technology,Tianjin 300132,China)
出处
《机床与液压》
北大核心
2021年第4期94-101,共8页
Machine Tool & Hydraulics
基金
国家自然科学基金青年科学基金项目(51605134)。
关键词
新能源电动汽车
电液复合制动系统
控制策略
联合仿真
New energy electric vehicle
Electro⁃hydraulic composite brake system
Control strategy
Joint simulation
