Abstract:In this paper, the dynamic characteristics of the motor for pure electric vehicles(PEV) has been analyzed, dynamic performa- nce model for pure electric vehicles has been established , and corresponding simulation software system has been developed on Matlab platform. Based on the software,three motors and three gear-boxs have been integrated to simulate vehicle’s running condition. The effects of torque,power and maximum rotate speed of motor upon the tractive performance of pure electricvehicles have been researched and summarised,such as the maximum speed, climbing performance and accelerative performance. The innovation in this paper is that dynamic performance for PEV has been established by exact formulation.