摘要
给出制定控制器局域网(Controller area network,CAN)总线通信协议应遵循的基本原则。结合电动汽车的控制结构特点,设计混合动力、纯电动、燃料电池等三种类型电动汽车动力总成系统推荐的网络拓扑结构。针对目前电动汽车应用层协议的不统一现状,在SAE J1939的基础上,制定同时适用于三种类型电动汽车动力总成系统的CAN总线通用协议,并与传统内燃机汽车的通信协议兼容。该通用协议综合考虑了三类电动汽车的拓扑结构以及控制所需参数,并充分利用CAN通信的优势,对电动汽车各节点源地址分配、输出参数以及参数组定义等都做出明确的规定。在总线波特率为500kb/s时,协议的有效性分别在CANoe软件和自主开发的网络在环平台中得到验证,通信性能满足控制的实时性要求。
The basic principle of designing controller area network（CAN）-bus protocol is given. Considering the control characteristics of electric vehicles, the recommended network topologies of power train system are designed separately for three kinds of electric vehicles including hybrid electric vehicle, pure electric vehicle and fuel cell vehicle. Due to the disagreement on designing the application layer protocol of electric vehicles at present, a general protocol is proposed based on J1939, which can be applied on the power train system of hybrid electric vehicle, pure electric vehicle and fuel cell vehicle, etc. Meanwhile, the protocol is also compati- ble with conventional vehicle power train. Considering the topologies and control parameters of three kinds of electric vehicles sufficiently, and taking full advantage of CAN bus communication, the nodes＇ source address, output parameters and parameter groups are all defined clearly in the general protocol. Under the baud rate of 500 kb/s, the protocol is validated through the experiments in both CANoe and hardware-in-the-loop platform which has been independently developed. The result shows that the communication performance fulfills the real-time requirements for control.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2008年第5期102-107,共6页
Journal of Mechanical Engineering
基金
国家高技术研究发展计划(863计划．2005AA01920)资助项目。
关键词
混合动力
燃料电池
动力总成系统
通信协议
应用层
Hybrid electric vehicle Fuel cell vehicle Power train system Communication protocol Application layer
