车控多核操作系统任务间数据交互实现方法研究
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- 英文论文题名：Research on the Implementation of Data Interaction between Tasks in Multi-core Operation System in Vehicle Control System
- 论文作者：孙忠刚 ; 张晓谦 ; 刘超 ; 李岩
- 英文论文作者：Sun Zhonggang ; Zhang Xiaoqian ; Liu Chao ; Li Yan ; FAW Corporation limited R&D center
- 年：2016
- 作者机构：中国第一汽车股份有限公司技术中心;
- 论文关键词：多核微处理器软件 ; AUTOSAR OS ; 任务间数据交互 ; 数据一致性
- 英文论文关键词：Multi-Core software ; AUTOSAR OS ; data interaction between tasks ; data consistency
- 会议召开时间：2016-10-26
- 会议录名称：2016中国汽车工程学会年会论文集
- 英文会议录名称：Proceedings of 2016 SAE-China Congress
- 语种：中文
- 分类号：U463.6
- 学会代码：QCGC
- 会议名称：2016中国汽车工程学会年会暨展览会
- 会议地点：中国上海
- 主办单位：中国汽车工程学会
- 学会名称：中国汽车工程学会
- 页数：3
- 文件大小：165k
- 原文格式：O
- 会议级别：全国
摘要
在汽车电控系统中,微处理器正逐步由单核过渡到多核。单核操作系统任务间数据交互实现方法不能解决多核微处理器核间任务交互数据的数据一致性问题。针对此问题,本文提出了一种适用于多核微处理器的改进方法。该方法利用汽车电子开放式架构(Automotive Open System Architecture,AOTUSAR)OS提供的自旋锁机制~([1])及内存缓存方法,保证交互数据在被访问过程中,数据一致性不被破坏,有效解决了多核微处理器上任务间数据交互问题。此方法容易实现,且原有软件由单核过渡到多核,软件改动量小,现已应用于一汽发动机控制器项目中。
In the electronic control system for automotive vehicle,the microcontroller is transforming from single core to multicore.The implementation of data interaction between tasks in single core operating system can not resolve the data consistency problem when the tasks on the different cores do the data interaction.To solve this problem,An improved implementation was put forward.The AUTOSAR OS SpinLock mechanism and memory cache method was used in this implementation,which can ensure that the data consistency is not destroyed when the data is being accessed.The implementation was easily to be realized and the software change is very small,has been verified in FAW engine electronic control system.
In the electronic control system for automotive vehicle,the microcontroller is transforming from single core to multicore.The implementation of data interaction between tasks in single core operating system can not resolve the data consistency problem when the tasks on the different cores do the data interaction.To solve this problem,An improved implementation was put forward.The AUTOSAR OS SpinLock mechanism and memory cache method was used in this implementation,which can ensure that the data consistency is not destroyed when the data is being accessed.The implementation was easily to be realized and the software change is very small,has been verified in FAW engine electronic control system.
引文
[1]AUTOSAR.Specification of Operation System[DK].2015.