基于FTT-CAN的电动汽车动态调度算法研究  

Research on FTT-CAN based dynamic scheduling algorithm of electric vehicle

作　　者：刘应吉[1] 王书举[2] 

机构地区：[1]交通运输部公路科学研究院运输车辆运行安全技术交通运输行业重点实验室,北京100088 [2]辽宁工程技术大学,辽宁阜新123000

出　　处：《现代电子技术》2017年第23期158-161,共4页Modern Electronics Technique

基　　金：交通运输部应用基础研究计划项目:道路运输动态监控数据分析方法及其应用研究(2014319223240);国家自然科学基金(51305181;51405213)

摘　　要：针对在控制器局域网(CAN)总线中存在低优先级信息会因为高优先级信息频繁占用总线而出现的死锁问题,在车辆控制系统中引入柔性时间触发机制组建柔性事件触发控制器局域网(FTT-CAN),针对周期信息和随机信息,分别在FTT-CAN的同步相和异步相中采用最早截止期优先(EDF)调度和动态提升优先级(DPP)调度,介绍了FTT-CAN触发原理,提出基于EDF和DPP的动态调度算法,将该调度算法应用于典型电动汽车控制系统模型的调度,验证了该调度算法的优越性。The controller area network(CAN)bus has the problem that the information with low priority may be deadlocked due to the frequent bus occupation of the information with high priority. The flexible time-triggered CAN(FTT-CAN)based on flexible time-triggered mechanism is introduced into the vehicle control system. The earliest deadline first(EDF)scheduling and dynamic promotion priority(DPP)scheduling are respectively used in the synchronous phase and asynchronous phase of the FTT-CAN for the periodic information and random information. The trigger principle of FTT-CAN is introduced. The dynamic scheduling algorithms based on EDF and DPP are proposed. The proposed dynamic scheduling algorithm is used to the scheduling of the typical electric vehicle control system model. Its superiority was verified.

关 键 词：控制器局域网 柔性时间触发控制器局域网 动态调度 可度性分析 

分 类 号：TN915.04[电子电信—通信与信息系统] TP336[电子电信—信息与通信工程]