驱动系统对四轮轮毂电机独立驱动电动汽车摆振的影响  

Influences of Driving System on the Shimmy of Four In-wheel Motors Independent Drive Electric Vehicles

作　　者：李晓高 张宁[1] 陈南[1] LI Xiaogao;ZHANG Ning;CHEN Nan(School of Mechanical Engineering,Southeast University,Nanjing 211189,China;School of Mechanical and Electronic Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,Jiangxi China)

机构地区：[1]东南大学机械工程学院,南京211189 [2]景德镇陶瓷大学机械电子工程学院,江西景德镇333403

出　　处：《噪声与振动控制》2019年第6期76-82,共7页Noise and Vibration Control

基　　金：国家自然科学基金资助项目(51375086,51605087);江苏省自然科学基金青年基金资助项目(BK20160671)

摘　　要：基于拉格朗日方程建立独立前悬四轮轮毂电机独立驱动电动汽车摆振6自由度模型,并应用数值分析与仿真方法研究电动汽车摆振动态响应。通过与燃油汽车比较,研究了电动汽车驱动系统对摆振的影响,同时也研究了汽车的主销后倾角、主销内倾角、前悬架倾角和重心位置等结构参数对摆振的影响。研究结果表明,由于增加了车轮质量,使得电动汽车摆振相对燃油汽车有更大的振幅。主销后倾角和重心位置对汽车摆振的影响十分明显,而主销内倾角和前悬架倾角的影响较小。该研究结果可为电动汽车设计提供理论参考。A 6-DOF shimmy model of a four in-wheel motors independent drive electric vehicle with independent front suspensions is established based on the Lagrange equation.The numerical analysis and simulation are used to study the dynamic responses of the electric vehicle’s shimmy.The influences of electric vehicle’s driving system on the shimmy are studied by comparing with the fuel vehicle’s shimmy,and the influences of the vehicle’s structure parameters,such as the caster angle,the kingpin inclination angle,the inclination angle of front suspension and the position of the gravity center,on the vehicle’s shimmy are studied.It shows that the amplitudes of electric vehicle’s shimmy are larger than that of the fuel vehicle’s shimmy because the mass of the front wheels is increased.The influences of the caster angle and the position of the gravity center on vehicle shimmy are very obvious,but the kingpin inclination angle and the inclination angle of front suspensions have little influences on the shimmy.These results provide a theoretical reference for electric vehicle’s design.

关 键 词：振动与波 电动汽车 驱动系统 摆振 数值仿真 结构参数 

分 类 号：TH113[机械工程—机械设计及理论] U46[机械工程—车辆工程]