基于类BITBUS协议的车辆低速电器网络控制系统研究  

Research of Low-speed Network of Electric Parts i n Vehicles Based on Quasi-BITBUS

作　　者：钟勇[1] 钟志华[1] 谭鹤良[1] 

机构地区：[1]湖南大学机械与汽车工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2003年第4期51-54,共4页Journal of Hunan University:Natural Sciences

摘　　要：按照区域自治原则,将车辆电器划分为十个子区,每个子区拥有一个ECU,所有ECU经双绞线联接成网络,从而构成了车辆电器低速网络系统.该系统ECU有两类,其中接受驾驶员操作指令的ECU为主控制器,它将驾驶员操作意愿转换为数字信号,并经总线传递给其它九个分ECU。各分ECU对这一包含控制指令信息的数字信号进行识别,若为本区信号则执行,否则弃而不用。文中还对这一系统总线型拓朴形式、类BITBUS通讯协议、系统控制策略等进行了较为深入的探讨。最后,对本系统的优点与缺点进行了评价.According to the rule of self-government in e ver y areas, the electric parts in vehicles were divided into ten departments, which are adjacent to each other.Each part has an special Electronic Control Unit (ECU), which controls its members′ working o r not. All ten departments are connected by twisted-pair line to form a network,i n w hich the central-controller manages nine sub-controllers using quasi-BITBUS as c ommunication protocol through the serial bus. The central-controller translate the driver′s operation into digital sigal and transfer it to nine sub-controll ers, which could enforce the operation or not according to the message was wheth e r or not given to it. The network′s makeup and its working mechanism were also analysed. Finally, this system′s virtues and shortcomin gs were given.

关 键 词：类BITBUS 区域自治 车辆电器 低速网络 控制系统 

分 类 号：U467[机械工程—车辆工程]