TTCAN调度算法及其在汽车控制系统中的应用  

Scheduling Algorithm Based on TTCAN and Its Application in Vehicle Control System

作　　者：刘鲁源[1] 万仁君[1] 李斌[1] 吴志新[2] 

机构地区：[1]天津大学电气与自动化工程学院,天津300072 [2]天津清源电动车辆有限公司,天津300457

出　　处：《汽车工程》2005年第1期60-63,共4页Automotive Engineering

基　　金：天津市重大攻关项目(023183611)资助

摘　　要：TTCAN协议是一种新的基于时间触发机制的CAN高层协议。针对周期性信号的特点,提出了基于 平均数目分析的静态调度算法;针对非周期信号的随机性,为了避免信号的死锁提出了基于信号截止期的优先级 提升动态调度算法。最后以汽车自动控制系统为背景进行了调度分析,与IEC/ISA相比既满足了信号的实时传 输,又提高了网络资源的利用率。In the light of the characteristic of the periodic signal, a static scheduling algorithm based on average amount analysis is put forward. According to the randomness of aperiodic signal, a priority promotion dynamic scheduling algorithm based on signal deadline is proposed. Finally, the scheduling analysis is performed based on automotive automatic control system. Compared with IEC/ISA, the scheduling algorithm not only meets the requirements of real-time transmission of signal but also enhances the utilization rate of network resource.

关 键 词：动态调度算法 调度分析 截止期 死锁 优先级 ISA 静态调度 平均数 IEC 网络资源 

分 类 号：U463[机械工程—车辆工程]