基于CAN总线的燃料电池客车通信网络设计

Design of communication network for fuel cell electric bus based on CAN bus

为了解决燃料电池电动客车各部件之间的通讯,基于CAN总线设计了整车通讯网络的拓扑结构,提出了其硬件要求。制定了CAN总线通信速率及通讯机制,介绍了CAN报文结构及协议。最后基于LPC2194微控制器和TJA1050高速CAN总线驱动器开发了各通信节点。实际应用表明,该系统稳定可靠。

To realize the communication between the components of FCEB,the topology structure and hardware requirement of onboard communication network based on CAN bus are presented.This paper also brings forward the communication protocol and mechanism,bit rate of CAN bus and structure of messages.Communication nodes are developed based on microcontroller LPC2194 and high speed CAN bus driver TJA1050.The application shows that the network is reliable and stable.