A Network-system with at least one node, whereby the at least one node is coupled to a communication line and with means for communication which are able to create a communication cycle on said communication line whereby said communication cycle consists at least of a static segment and/or a...
With a fast development of car’s electric technology, the electronic equipment of vehicle also has an increasingly growth. The vehicle has been changed into another controlling method called X-by-wire. The traditional CAN bus has a limitation in bus bandwidth and communication protocol so that it...
内容提示: FlexRay Protocol Specification Version 2.1 Revision A1 5-December-2005Chapter 1: IntroductionPage 1 0 of 245 Chapter 1Introduction1.1ScopeThe FlexRay communication protocol described in this document is specified for a dependable automotivenetwork. Some of the basic characteristics of the ...
FlexRayProtocolSpecification Version2.1RevisionA15-December-2005 Chapter3:CodingandDecoding Page55of245 Figure3-1:Coding/Decodingcontext 3.2.1Frameandsymbolencoding This section specifies the behavior of the mechanisms used by the node to encode the communication elements into a bit stream and how the ...
FlexRay Communication Protocol 是戴姆勒.克莱斯勒股份公司的注册商标。FlexRay 的全面使用是由FlexRay 联盟于2008年推出的,该联盟推动了FlexRay 作为下一代车载通信协议的标准化。FlexRay 经过专门设计,可以满足线控驱动(线控启动、线控制动)和高级设备辅助系统(发动机、变速箱)的需求和挑战。
Table 2-1: Communication controller power moding thresholds. power off POC operational reset power on FlexRay Protocol Specification Version 2.1 Revision A 15-December-2005 Chapter 2: Protocol Operation Control Page 31 of 245 1. A power level of no more than ResetPowerThreshold but still greater...
MTG过程产牛最大时间节拍,有两种不同的方法可以启动该过程: Contr01) (1)如果节点满足作为冷肩动节点肩动的条件,POC(Protocol Operation 过程开始MTG过程; (2)节点是一个集成节点,而且该节点的集成成功。 两种方法中的任意一种都将周期计数器,最大时问节拍和速率校正值设置 为初始值。一个循环将完成每一个最...
图 3 FlexRay 节点(ECU )2.2 FlexRay 状态Figure 23: Overview of protocol operation control如图2-3所示,FlexRay的节点有几个基本的运行状态:配置状态(默认配置/配置):用于各种初始化设置,包括通信周期和数据速率。就绪状态:用于进行内部的通信设置。唤醒状态:用于唤醒没有在通信的节点。唤醒针对的是电源管理系统...
2.3.4 时钟同步 在FlexRay 总线系统中,节点内部的时序表是以通信周期(communication cycle )、最大时间节拍(Macrotick )以及最小时间节拍(Microtick )为基础的。 如上节媒体访问控制中所述,通信周期由固定数目的 Macrotick 组成,而一个 Macrotick 则由固定数目的Microtick 组成。对于一个时间 VIP免费下载 ...
FlexRay通信系统初级中央总线监视器规范V2.0.9.pdf FlexRay Communications System Preliminary Central Bus Guardian Specification Version 2.0.9 上传者:clizhs时间:2019-08-06 FlexRay通信系统协议一致性测试规范V2.1.2.pdf FlexRay Communications System Protocol Conformance Test Specification Version 2.1.2 ...