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这里为某车型基于LIN总线的车身控制系统设计实现了一款车身控制器,给出了以车身控制器为主节点的车身LIN网络架构,在深入研究LIN协议及LIN网络通信机制的基础上,描述了LIN网络通讯行为模型及主节点在LIN网通信调度中的作用。结合LIN主节点的设计,介绍了数据链路层协议规范及其设计技术,并通过分析LIN网通信调度和信号提取,介绍了应用层的实现,最后说明了网络管理功能的机制及其实现。
In this paper, a body controller is designed and realized for a vehicle body control system based on LIN bus. The vehicle body LIN network architecture with the body controller as the main node is given. Based on the in-depth study of LIN protocol and LIN network communication mechanism, Describes the behavior of LIN network communication model and the role of the main node in the LIN network communication scheduling. Combined with the design of LIN master node, the specification of data link layer protocol and its design technology are introduced. And the implementation of application layer is introduced by analyzing the scheduling and signal extraction of LIN network communication. Finally, the mechanism of network management function and its implementation are illustrated.