对转双转子电机在电动汽车上的驱动特性  

Driving Performance of Anti-Direction Dual-Rotor Motor for Electric Vehicle

作　　者：罗玉涛[1] 旷鹏[1] 刘延伟[1] 

机构地区：[1]华南理工大学广东省汽车工程重点实验室,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2008年第2期7-12,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50605020);广东省科技计划项目(2006A10501001)

摘　　要：研究了一种基于对转双转子电机的电动汽车驱动系统,并对其进行数学建模和仿真分析.分析了双转子电机左右输出轴及传动机构转动惯量的差异对汽车驱动的影响,建立了基于双指数模型的纵向附着系数计算模型.通过理论推导结合仿真分析发现:基于对转双转子电机的驱动系统具有转弯差速功能,转弯时电磁转矩不变;内外转子两侧传动机构的总转动惯量差异对电动汽车的驱动加速度影响很小,在滑移率较小的情况下,汽车两侧车轮几乎具有相同的加速度、速度和滑移率变化量;只要把内外转子两侧传动机构的总转动惯量差异控制在较小的范围内,即使在汽车完全打滑的情况下,汽车两侧车轮的加速度和速度也相差不大.In this paper, a driving system of electric vehicle （EV） based on anti-direction dual-rotor motor （AD- DRM） is investigated, and the corresponding mathematical modeling and simulation are carried out. In the investigation, the influence of the two output shafts and their transmissions inertia difference on the driving performance is analyzed, and a model based on the dual-exponent model is established to calculate the longitudinal adhesion coefficient. Theoretical and simulated results indicate that （ 1 ） the driving system based on ADDRM is of the ability of swerve difference at a constant electromagnetic torque; （2） the transmission inertia difference of the two rotors has little effect on the acceleration of EV ; （3） at a small slippage ratio, the two wheels of EV have almost the same acceleration, speed and slippage ratio variation; and （4） if the transmissions inertia difference of the two rotors is restricted in a small range, the accelerations and speeds of the two wheels are almost the same even in slippage conditions.

关 键 词：电动汽车 对转双转子电机 驱动系统 转动惯量 滑移率 

分 类 号：U463.2[机械工程—车辆工程]