轮毂驱动电动汽车悬架创新设计与优化  

Innovative design and optimization of suspension of in-wheel-motor-driven electric vehicles

作　　者：聂高法[1] 时培成[1] 孙阳敏 彭闪闪[1] 张军[1] 

机构地区：[1]安徽工程大学机械与汽车工程学院,安徽芜湖241000

出　　处：《安徽工程大学学报》2016年第2期49-54,共6页Journal of Anhui Polytechnic University

基　　金：国家自然科学基金资助项目(51575001)

摘　　要：为了改善轮毂驱动电动汽车悬架垂向振动特性,建立轮毂驱动电动汽车1/4车辆动力学模型,在Matlab/Simulink中进行仿真分析.首先,对比原车悬架,研究轮毂电机转矩波动对车辆垂向振动特性的影响.其次,将轮毂电机利用弹簧阻尼器与轮毂弹性连接,使轮毂电机变成类簧载质量,并优化悬架参数.最后,对优化前后的1/4车辆动力学模型进行对比分析.仿真表明,优化后的悬架系统使得车身垂向振动特性优于电机与轮毂刚性连接的悬架,研究结果为改善轮毂电机电动汽车垂向振动特性提供了依据.To improve vertical performance of suspension of in-wheel-motor-driven electric vehicle,a quarter-car dynamic model of a electric vehicle drived by in-wheel motor was established and simulated in Matlab/Simulink.First,compared with the original vehicle＇s suspension,the effect of torque ripple to performance of vertical vibration of in-wheel motor was studied.Second,with in-wheel motor connected,by wheel hub elastically（using spring-damper）and turned into similar sprung mass,the suspension parameters were optimized.Finally,the quarter-car dynamic model before-and-after optimization was compared.The simulation results showed that the suspension after optimization was superior to the suspension with rigid connection between the motor and wheel hub in performance of vertical vibration.The results provided the basis for improving performance of vertical vibration of the in-wheel-motordriven electric vehicle.

关 键 词：电动汽车 轮毂电机 悬架 优化 

分 类 号：U461.4[机械工程—车辆工程]