網絡控制是客車技術發展的趨勢。客車網絡控制系統設計過程中需要對系統層與節點層的一些關鍵問題進行研究, 以助于提高網絡控制的性能。文中對控制其局域網CAN 的相關概念, 如CAN 協議、幀格式、CAN 控制器操作模式等進行辨 析; 對與系統結構設計有關的幀格式選取、標識符分配、網絡結構與實時性等進行了研究, 并提供了一般分析方法與原則; 對節點硬件設計中的通信器件與傳輸介質選取進行了分析, 并探討了控制策略在軟件設計中的實現。
關鍵詞: 客車; CAN; 網絡控制
Abstr act: Network control is the development trend of passenger car technology. For improving network control performance, it’s necessary to research some key problems in design process of passenger car network control system including system layer and node 、 layer. This paper analyzed correlative conception about CAN (Controller Area Network) such as CAN protocol, frame format and CAN controller operation modes. At system framework design aspect, the author researched frame format selection, identifier allocation, network
framework and real - time performance. General analysis method and principle was to be given. At node design aspect, this paper analyzed how to select communication elements and transmission medium in hardware design and discussed control strategy realization
in software design.
Key Words: Passenger Car , CAN, Network Control