基于FlexRay总线的分布式车载安全计算机系统设计  

Distributed on-board safety computer system based on FlexRay bus

作　　者：孙俊勇 罗显光 许晋荣 曾军 石建强 SUN Junyong;LUO Xianguang;XU Jinrong;ZENG Jun;SHI Jianqiang(State Key Laboratory of Heavy Duty AC Drive Electric Locomotive Systems Integration,Zhuzhou 412000,China;R&D Centre,CRRC Zhuzhou Locomotive Co.Ltd.,Zhuzhou 412000,China;Automatic Control Research Institute,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]大功率交流传动电力机车系统集成国家重点实验室,株洲412000 [2]中车株洲电力机车有限公司产品研发中心,株洲412000 [3]兰州交通大学自动控制研究所,兰州730070

出　　处：《铁路计算机应用》2021年第10期54-58,共5页Railway Computer Application

基　　金：国家重点研发计划项目(2019YFB1405400)。

摘　　要：传统的车载安全计算机一般采用较大的机箱设计,大型机箱不利于车载设备的灵活配置和功能扩展。为此,设计一种基于FlexRay总线的分布式车载安全计算机系统。采用两套小型机箱设计,单套机箱内部采用FlexRay总线组成二取二安全计算机;两套相同的二取二安全计算机通过FlexRay总线和切换模块连接,组成二乘二取二安全计算机系统。设计的安全计算机系统可以灵活配置,满足不同类型车辆的小型化需求,可为小型化的安全计算机设计提供参考。The traditional on-board safety computer generally adopts large-scale case design,which is not conducive to the flexible configuration and function expansion of on-board equipment.This paper designed a distributed vehicle safety computer system based on FlexRay bus.The system adopted two sets of small case design.The FlexRay bus was used inside a single case to form a two out of two security computer.Two sets of the same two out of two security computers were connected with the switching module through FlexRay bus to form a two by two out of two security computer system.The designed safety computer system can be flexibly configured to meet the miniaturization requirements of different types of vehicles,and can provide a reference for the design of miniaturized safety computer.

关 键 词：分布式 安全计算机 FLEXRAY总线 小型化 切换模块 

分 类 号：U284.362[交通运输工程—交通信息工程及控制] TP39[交通运输工程—道路与铁道工程]