By discussing control principle of the TCU(Traction Control Unit) and the dynamic characters of the traction system of the metro vehicle,a real-time testing platform for the TCU was proposed based on the xPC Target toolbox of Matlab.

• 在讨论地铁牵引系统动态特性和控制原理的基础上,应用MATLAB的xPC Target工具箱,构建了针对牵引控制单元(TCU)的实时仿真测试平台。