电动汽车驱动电机及前驱动桥的耦合振动研究

Coupling Vibration Research on Driving Motor and Drive-Axle of Electric Vehicle

对典型电动汽车转向系统和驱动系统的具体结构(驱动电机与前驱动桥整体式结构),进行耦合振动研究。建立了四自由度摆振模型,分析了由于陀螺效应的存在以及路面的不平度激励对驱动电动机的影响。给出了实际车辆模型的振动响应仿真,得到了理想的数值分析结果。为电动汽车的进一步研发提供了可靠的理论依据。

Coupling vibration of steering system and drive system of electric vehicle（structure of driving motor and drive-axle） is researched.The model of four-freedom-degree pendulum vibration is established.The influence of gyroscopic effect and road surface roughness on electromotor is analyzed.Numerical solution for system vibration response of practical vehicle model is simulated,and good results of numerical analysis are obtained.The presented method provides the theoretic basis for development of electric vehicle.