摘要：电动汽车驱动系统的核心技术就是对电动机的控制，目前比较流行采用的是矢量控制(FOC)和直接转矩控制(DTC)。然而这两种方法有各自的优缺点，为了能够满足电动汽车在不同的工况下转矩和速度的要求，通过把FOC和DTC这两种控制方法结合在一起，取长补短，形成一种对异步电动机的混合控制方法。其次，还搭建了该控制系统的Matlab仿真模型和基于DSP2812的硬件电路，通过Matlab和DSP之间的连接工具Real Time Workshop生成混合控制的C语言程序，并编译、下载和调试，最终控制一台小功率鼠笼式异步电动机，验证了混合控制方案的可行性。

关键词：电动汽车；异步电动机；混合控制；Matlab；DSP
Abstract: The core technology of the EV driving system is the motor control, recently, the main control technology includes field orientation control (FOC) and direct torque control (DTC). However, the two methods have their own advantages and disadvantages. In order to meet the requirements for EV in the different conditions of torque and speed. This paper put forward an innovative control strategy, which is an organic combination of the two methods, to adopt the other′s strong points to offset one′s weakness based on the researching of the asynchronous motor mathematical models and control theory. The Matlab simulation will be designed to study the feasibility of the hybrid control method firstly. Then DSP2812 hardware circuit was designed. Next, the tool of the connection between the Matlab and DSP was used to design and generation the hybrid control C language program, which was compiled, downloaded and debugged to control a small power asynchronous squirrel cage motor.

Key words: EV; asynchronous motor; hybrid control; Matlab; DSP