基于直接转矩控制的电动汽车稳定性研究

Improvement of vehicle's stability based on direct torque control

为了解决电动汽车在行驶中不稳定的问题,提出了利用直接转矩控制提高汽车稳定性的方法。首先分析了改善汽车稳定性的原理及直接转矩控制的特点;在此基础上,设计了双电机直转稳定系统;基于Matlab/Simulink搭建了系统的模型。仿真分析的结果证明,采用直接转矩控制方略提高电动汽车稳定性的方法是可行的。

In order to deal with instability phenomenon of electric vehicle, the direct torque control strateg was designed to improve the electric vehicle＇s driving stability. Firstly the principle of improving electric vehicle＇s driving stability and the features of the direct torque control were analyzed. Secondly the double motol direct torque control system was designed. Matlab/Simulink was used to build a simulation system. The simulation results show that the method is feasible for the stability of electric vehicle.