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基于局部非抢占式定时调度的汽油机控制系统实时性分析
引用本文:陈俐,张建武. 基于局部非抢占式定时调度的汽油机控制系统实时性分析[J]. 上海交通大学学报, 2006, 40(1): 167-171
作者姓名:陈俐  张建武
作者单位:上海交通大学,机械与动力工程学院,上海,200030;上海交通大学,机械与动力工程学院,上海,200030
摘    要:建立了实时性分析的框架,包括建模、调度算法设计和评价3个步骤.以单缸汽油机的点火和喷油控制为研究对象,进行了实时性分析和仿真.建立的多处理器实时系统模型由运行在3个处理器上的6个任务组成,提出了局部非抢占式定时调度算法(LNPTT),并与传统的时间片轮巡调度算法对比,对两种算法的可行性分别进行了可调度性验证、时序验证和共享资源验证.结果表明,建立的实时性分析模型合理,提出的LNPTT局部非抢占式定时调度算法可行、可靠.

关 键 词:汽车电子  实时性  定时调度
文章编号:1006-2467(2006)01-0167-05
收稿时间:2005-02-21
修稿时间:2005-02-21

The Real-Time Analysis Using Local Nonpreemptive Timer-Triggered Scheduler for ECU of Gasoline Engine
CHEN Li,ZHANG Jian-wu. The Real-Time Analysis Using Local Nonpreemptive Timer-Triggered Scheduler for ECU of Gasoline Engine[J]. Journal of Shanghai Jiaotong University, 2006, 40(1): 167-171
Authors:CHEN Li  ZHANG Jian-wu
Affiliation:Dept. of Mechanical Eng. , Shanghai Jiaotong Univ. , Shanghai 200030, China
Abstract:An architecture of real-time analysis for vehicle electronically controller was established by modeling,scheduling and verifying.A typical single cylinder gasoline engine controller was investigated using real-time analysis and simulation.The real-time model consists of six tasks running on three processors. The local non-preemptive timer-triggered(LNPTT)algorithm was proposed compared with the local round-robin scheduler.Verification concerned with schedularbility,timing and resource sharing was implemented.The results show that the real-time model is reasonable and the LNPTT scheduler is feasible and reliable.
Keywords:vehicle electronics  real time performance  timer-triggered scheduler
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