摘要
介绍了CAN技术规范和OSI参考模型;从通信内容的确定、标识符分配、消息编码方式、消息调度策略、数据格式定义5个方面考虑,制定了一套适用于电动汽车的CAN网络应用层协议。实际应用表明,采用该协议的CAN总线通信系统有很高的可靠性,通信负载率不超过30%,保证了紧急报文的及时发现和处理。
The CAN technical specifications and OSI reference model were introduced, and an application layer protocol of CAN network was established for electric vehicle considering five aspects including determination of communication contents, identifier assignment, message encoding, message scheduling strategies and data format define. Practical application result showed that CAN bus communication system adopting the protocol has high reliability and the communication load rate is less than 30%, which ensures timely detection and treatment of emergency messages.
出处
《工矿自动化》
北大核心
2012年第7期29-32,共4页
Journal Of Mine Automation
基金
江苏省高校自然科学基金项目(11KJB580001)
关键词
电动汽车
CAN总线
应用层协议
标识符分配
消息编码
消息调度
数据格式
electric vehicle, CAN bus, application layer protocol, identifier assignment, messageencoding, message scheduling, data format
