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汽车安全与节能学报 ›› 2013, Vol. 4 ›› Issue (1): 75-81.DOI: 10.3969/j.issn.1674-8484.2013.01.011

• 汽车节能与环保 • 上一篇    下一篇

车载网络通讯协议Flexray 网络的分析及搭建

程驰,帅志斌,李建秋,徐梁飞,欧阳明高   

  1. 清华大学 汽车工程系,北京 100084,中国
  • 收稿日期:2013-01-28 出版日期:2013-03-25 发布日期:2013-03-27
  • 通讯作者: 欧阳明高,教授。E-mail: ouymg@tsinghua.edu.cn E-mail:E-mail: ouymg@tsinghua.edu.cn
  • 作者简介:程驰(1989—),女(汉),江苏,硕士研究生。E-mail: c-cheng11@mails.tsinghua.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(51275264);科技部国际合作项目2012DFA81190)

Analysis and forming construction of an on-vehicle
communication protocol Flexray network

CHENG Chi, SHUAI Zhibing, LI Jianqiu, XU Liangfei, OUYANG Minggao   

  1. Department of Automotive Engineering, Tsinghua University, Beijing 100084, China
  • Received:2013-01-28 Online:2013-03-25 Published:2013-03-27

摘要: 替代传统CAN 网络的车载网络通讯协议Flexray,可适应汽车动力和底盘系统的控制数据
传输的要求:节点数多、数据容量大、实时性要求高、功能安全要求严、时间触发。本文分析了包
括Flexray 的时间层级和帧结构在内的关键部分;搭建一个简单的3 节点Flexray 网络,并分析了
Flexray 网络参数的配置要求(包括全局参数和局部参数)。结果表明:用所搭建的flexray 三节点网
络,根据假定的参数配置,展示了三节点通讯的实际数据传输情况,验证了所搭建网络的可实现性,
为搭建更复杂的网络提供参考。

关键词: 车载网络, 通讯协议Flexray , 结构搭建, 时间触发

Abstract: The on-vehicle communication protocol Flexray, which can replace the traditional network CAN, can
adapt to the control-data communication demand of power-train and chassis on automobile due to advantages
of more nodes, wider band-width, real-time, safety function and time-triggered. This article analyzes the detail
of the time level and frame construction of the key part of the network, sets up a simple 3-node Flexray network,
and analyzes the configuration of the protocol parameters including global parameters and local parameters.
A 3-node Flexray network was built. The results demonstrate the actual communication of the pre-assumed
signals according to the assumed parameters, therefore, proving the achievability of the constructed network,
which can be used as a reference to build more complex networks.

Key words: on-vehicle network, communication protocol Flexray, forming construction, time triggered

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