电动汽车电控液压制动系统CarSim/Simulink联合仿真研究  

Research on the CarSim/Simulink Co-simulation of Electric Control Hydraulic Braking System for Electric Vehicle

作　　者：洪诚[1] 李琤[1] HONG Cheng;LI Cheng(Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241002,China)

机构地区：[1]安徽机电职业技术学院,安徽芜湖241002

出　　处：《汽车实用技术》2024年第5期52-58,共7页Automobile Applied Technology

基　　金：2021年安徽省高校优秀青年人才支持计划重点项目:基于CarSim/Simulink的整车线控转向系统助力特性和控制策略研究(gxyqZD2021147)。

摘　　要：针对某款国产电动汽车的电控液压制动系统,文章基于滑移率的比例-积分-微分(PID)控制提出了防抱死制动系统(ABS)模型,以改善车辆制动性能,提高在对开路面上的制动有效性和安全性。首先,使用Simulink软件建立液压电控制动系统的动力学模型;然后,基于滑移率设计PID控制器,并通过1/4车辆模型验证其有效性;最后,利用S函数将ABS控制器的Simulink模型输入CarSim平台中,开展CarSim/Simulink双平台联合控制仿真。结果表明,基于滑移率的PID控制的ABS对比无ABS的车辆,制动性能更加优越,在对开路面上制动稳定性更加明显。Aiming at the electric control hydraulic braking system of a domestic electric vehicle,an anti-lock braking system(ABS)model is proposed based on the proportional-integral-differential(PID)control of slip rate to improve the braking performance of the vehicle and improve the braking effectiveness and safety on the opposite road surface.Firstly,the dynamic model of the hydraulic electric control braking system is established through Simulink software.Then,the PID controller based on slip rate is designed,and its effectiveness is verified by 1/4 vehicle model.Finally,S function is used to input the Simulink model of ABS controller into CarSim platform,and CarSim/Simulink dual platform joint control simulation is carried out.The results show that the braking performance of the ABS system based on PID control of slip rate is better than that of the vehicle without ABS system,and the braking stability is more obvious on the split road.

关 键 词：ABS 电动汽车 电控液压 汽车动力学 CarSim/Simulink联合仿真 制动性能 

分 类 号：U467.492[机械工程—车辆工程]