电动汽车驱动工况下纵向冲击问题研究  

Study on electric vehicles' longitudinal impact Characteristics under driving condition

作　　者：甄子健 陈潇凯[2] 夏超英[3] 林逸[4] 

机构地区：[1]科学技术部高技术研究发展中心,北京100044 [2]北京理工大学机械与车辆工程学院,北京100081 [3]天津大学自动化学院,天津300072 [4]北京汽车研究总院,北京100176

出　　处：《高技术通讯》2016年第3期289-298,共10页Chinese High Technology Letters

基　　金：863计划(2006AA04Z119)资助项目

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.

关 键 词：电动汽车 驱动 纵向冲击 电机控制 机电耦合仿真 

分 类 号：U469.72[机械工程—车辆工程]