基于CAN总线网络的车身控制系统研究

Design of Body Controller Module Based on CAN Bus

对CAN网络进行深入研究,给出基于高/低速CAN网络的车身控制系统设计与实现方法。在系统中,高速CAN总线连入高实时性系统,低速CAN总线连入低实时性系统,将两者构建成混合控制网络并实现网络间的通信,使控制系统兼具高可靠性、高性能和低成本的优点。在器件选型上,采用NEC的32位单片机μPD70F3378作为微控制器,既实现了可靠网络控制功能,同时也降低了车辆电子系统的开发和生产成本,具有较高的实用性。

This paper introduce a thought and method of body controller module based on High/Low speed CAN bus system. In this module, high speed CAN bus connected to high real-time function and low speed CAN bus connected to low real-time function is capability of inter-communication, which makes system reliability, high performance and low cost. For chip selection, NEC microcontroller μPD70F3378 can be used both for reliable CAN bus control, and for low cost production.