本文首先对多功能车辆总线的基本原理进行了简要的概述，接着对其实时协议进行了分析，然后对 MVB2 类设备控制器的功能及其功能模块的划分设计进行了详细的分析；最后对各功能模块进行了编程实现，并给出了仿真验证波形。(Firstly, the basic principle of the multifunction vehicle bus are briefly outlined, then analyze the real time protocol, then carried out a detailed analysis of the classification of the design function and the function module of the MVB2 device controller; finally, the function of each module of the program, and gives the simulation waveforms.)