摘要
针对电动汽车在驱动加速工况下存在纵向冲击的问题,进行了整车纵向动力学特性分析和电机驱动特性分析,找出了引起电动汽车在驱动工况下的纵向冲击的主要因素,并结合整车多体动力学和电机驱动控制进行机电耦合仿真,开展了电动汽车整车在起步阶段和加速过程控制策略转换阶段的纵向冲击研究,提出了抑制电动汽车纵向冲击的方法。该方法能在保证整车驱动性能的前提下,减小了纵向冲击度,提高了平顺性和舒适性。
To solve the longitudinal impact problem of electric vehicles under the drive accelerating condition,the analyses of whole vehicle＇s longitudinal dynamics and motor＇s driving characteristics were conducted,and the major factors leading to the longitudinal impact problem of electric vehicles under the driving condition were found out.Then,the longitudinal impacts suffered by electric vehicles at the starting stage and the fast accelerating stage were studied by the electromechanical coupling simulations for integrative multi-body dynamics and motor control,and the method for suppressing longitudinal impacts of electric vehicles was presented. The method can reduce the longitudinal impacts and improve vehicles＇ riding comfortableness.
出处
《高技术通讯》
CAS
CSCD
北大核心
2016年第3期289-298,共10页
Chinese High Technology Letters
基金
863计划(2006AA04Z119)资助项目
关键词
电动汽车
驱动
纵向冲击
电机控制
机电耦合仿真
electric vehicle
driving
longitudinal impact
motor control
electromechanical coupling simulation
