Study on Power Performance of Traction Motor System for Electric Vehicle

To get well known on the power performance of traction motor system is very important and meaningful for the parameter matching design of electric vehicle power train. The ideal power characteristic for traction motor system is put forward from the vehicle driving point with constant torque drive below base speed and constant power drive above base speed. The characteristics of peak power working condition, continuous working condition provides the main basement for the electric vehicle power train design. The base speed and maximum speed of traction motor determine the acceleration performance of electric vehicle. The corresponding description parameters are put forward. One example was given based on the experiment data.