Electrical tractions use more and more the asynchronous machines because of their robustness, their power weight ratio. Their maintenance as well as their diagnosis then became an economic state. It is important to early detect the faults likely t

：针对电动汽车永磁同步电机无位置传感器控制系统，在两相静止坐标系( —B)内将滑模观测器法 与MRAS结合，提出了基于模型参考自适应的滑模观测器，并利用自适应律估计永磁同步电机的转子速度。仿真 和试验表明无位置传感器控制方法是切实可行的。 关键词：电动汽车永磁同步电机无位置传感器控制 自适应滑模观测器-This paper presents a new adaptive slid—mode observer for electric vehicle permanent magnet