摘要
电子控制单元(ECU)有通过串行数据线路连接交换信息的需要,为支持汽车上ECU之间通信的安全性和可靠性,在符合OSEK NM规范的基础上,设计和实现了TH-OSEK车用网络管理系统。详细介绍了逻辑环的管理和在其上实现网络睡眠的算法,并提出采用有限状态自动机进行网络节点状态和行为的管理。在进行仿真实验的基础上,在目标平台上实现了TH-OSEK网络管理系统。实验结果表明,该系统成功达到了设计目标。
Electronic control units （ECU） have the requirements to exchange information via serial data communication links. To ensure the safety and reliability of the communication between ECUs, TH-OSEK in-vehicle network management system, which complies with OSEK NM standard, is designed and implemented. The management of logic ring and the network sleep algorithm is introduced, and in the end, the finite state automation is proposed to manage the states and behaviors of the network nodes. The whole system is simulated first, and then the major algorithm is ported to the target platform. Experimental results show that the system achieves the design goal successfully.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第17期4395-4397,4419,共4页
Computer Engineering and Design
基金
国家863高技术研究发展计划基金项目(2003AA501111)
关键词
电子控制单元
车用网络管理
控制器局域网
逻辑环
有限状态机
electronic control unit
in-vehicle network management
controller area network
logic ring
finite state automation
