基于汽车电子网络的CAN总线简化型混合调度算法  

Easy mixed CAN bus priority scheduling algorithm based on automotive electronic control network

作　　者：王斌杰[1] 吴卿[1] 赵俊杰[1] 

机构地区：[1]杭州电子科技大学计算机应用技术研究所,浙江杭州310018

出　　处：《机电工程》2009年第6期54-57,共4页Journal of Mechanical & Electrical Engineering

基　　金：浙江省科技厅科技计划面上资助项目(2008C21142);浙江省科技厅2008年新苗人才计划资助项目(kyz154308058-3)

摘　　要：现有的控制器局域网(CAN)总线调度算法性能不能很好地满足汽车电子网络化发展的需要,针对这一问题,首先分析了现有CAN总线网络节点消息优先级调度算法的优缺点,然后针对CAN总线网络在汽车电子控制网络系统中的特点,在混合调度(MTS)算法的基础上提出了一种简化型混合调度(EMTS)算法。仿真实验结果表明,该简化算法能达到原算法的性能,在节点消息截止期相近的情况下,其调度性能比MTS算法有所提高。Aimming at the existing controller area network（CAN） priority scheduling algorithm can＇t meet with the development of the automotive electronic network system, first of all, the advantage and disadvantage of existing CAN bus priority scheduling algorithm were analyzed. Then, based on the characteristic of CAN in automotive electronic network system and the mixed traffic scheduling（MTS） algorithm, an easy mixed traffic scheduling（EMTS） algorithm was presented. Emulation experiments were given. The results prove that EMTS algorithm can reach the performance of MTS, by comparing the experiments results. And when the CAN nodes＇ deadline is near with each other, performance of EMTS algorithm can be proved better than performance of MTS.

关 键 词：控制器局域网 标识符 网络消息调度 优先级倒置 截止期编码 混合调度 简化型混合调度 

分 类 号：TP336[自动化与计算机技术—计算机系统结构]