双转子电机在电动汽车上的驱动特性分析

研究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知：①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。②内外转子两侧传动机构的转动惯量和的差异对电动汽车的驱动加速影响很小，在滑转率较小的情况下，汽车两侧车轮几乎具有相同的加速度、速度和滑转率变化量；③只要把内外转子两侧传动机构的转动惯量和的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。

Driving Performance Analysis Of Anti Direction Dual Rotor Motor Using In Electric Vehicle

A kind of electric vehicle(EV) driving system based on anti direction dual rotor motor(ADDRM) is studied. The mathematic model is established and the simulation on it is carried out. The influence on vehicle driving performance of the two output shafts and their transmissions inertia of the ADDRM is analyzed. The twin exponential longitudinal adhesion coefficient calculating model is also set up. The academic and simulation show that the ADDRM driving system has the ability of swerve difference and the electromagnetic torque retains the same. And the difference of the two rotors and their transmissions inertia has very little infection on the EV accelerating performance. When the slippage ratio is small, the two wheels have almost the same acceleration, speed and slippage ratio variation. The acceleration and speed of the two wheels are almost the same as long as the difference of the two rotors and their transmissions inertia is restricted in a small range.