电动汽车轮边驱动系统的设计与研究

Design and Research of Wheel-Rim DriveSystem of Electric Vehicle

基于高速内转子型轮边驱动的优点,通过结构一体化设计,在有限的轮辋空间内,提出了一种用于电动汽车的集轮毂电机、制动器和轮边减速器为一体的高效紧凑轮边驱动系统。该系统采用永磁无刷直流电机和NGW型行星齿轮减速器,通过改进传统的NGW型行星齿轮减速器和轮毂轴承的结构设计,使减速器置于轮辋内,改善了车身的内部空间,搭配了双横臂独立悬架。利用CATIA建立了虚拟样机模型,通过ADAMS/Car对双横臂扭杆弹簧悬架模型进行研究,并运用ANSYS-Work-bench进行了有关的工程分析。

Based on advantages of the high-speed and inner rotor wheel edges drive system,a kind of high efficient and compact wheel rim drive system is designed for electric vehicle in limited space,which is integrated with wheel hub motor,brake and wheel rim reducer together.The system adopts the permanent brushless dc motor and NGW modeled planet gear reducer,with a double wishbone suspension.Through the improvement of the traditional NGW gear reducer and wheel bearing structure design,the reducer is mounted inside the rim so that the internal space of the car body is reduced.Meanwhile a virtual prototype model is set up using CATIA;And the double wishbone suspension system model is studied through the ADAMS/Car on torsion bar,in addition engineering analysis is done using ANSYS-Workbench.