摘要
采用Matlab/Simulink软件建立分布式驱动电动汽车轮边电机传动系统的仿真模型,并通过仿真,分析系统起动、加速和能量回馈制动时的动态特性。结果表明,该轮边电机传动系统的输出转矩发生突变时会引起速度和加速度的抖动,并影响整车动态特性。针对受传动系统输出转矩抖动影响较大的因素,采用状态反馈控制方法从理论上解决系统的振动问题,改善整车动态特性,提高车辆的可靠性、耐久性和乘坐舒适性。
A simulation model for the in-wheel-motor drive system of distributed drive electric vehicle is built with Matlab/Simulink software,and a simulation is conducted to analyze the dynamic characteristics during start,acceleration and regenerative braking.The results show that the sudden change in output torque of in-wheel motor drive system will cause chattering in speed and acceleration and affect the dynamic characteristics of vehicle.Aiming at the factor most affected by output torque chattering,a state feedback control method is adopted to solve the vibration problem of system,improve the dynamic characteristics and enhance the reliability,durability and ride comfort of vehicle.
出处
《汽车工程》
EI
CSCD
北大核心
2014年第5期597-602,607,共7页
Automotive Engineering
基金
国家863计划(SS2012AA110701)
国家973计划子课题(2011CB711202)
面向中美清洁能源合作的电动汽车前沿技术研究项目(2010DFA72760-306)资助
关键词
轮边电机驱动系统
动态特性
转矩脉动
系统振动
in-wheel-motor drive system
dynamic characteristic
torque chattering
system vibration
