Method and device for synchronising two bus systems, and arrangement consisting of two bus systems

一种总线系统、设备的技术，应用在时分多路复用系统、传输系统、数字传输系统等方向
CN101164264AActive Publication Date: 2008-04-16ROBERT BOSCH GMBH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ROBERT BOSCH GMBH
Publication Date
2008-04-16

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Abstract

A device for synchronizing at least two bus systems, having a first communications module for a first bus system and a second communications module for a second bus system, wherein in the first communications module first trigger information is present by which a trigger signal is triggered in the first bus system, characterized in that the device is configured in such a manner that the first and second communications modules are connected to each other and the first trigger information is transmitted to the second communications module, and the second communications module is configured in such a manner that a time information value is determined from the first trigger information and that time information value is compared with a second time mark of the second bus system, a time difference being determined and the next reference message being triggered in the second bus system in dependence upon the second time mark and the time difference.
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Description

technical field

[0001] The invention proceeds from a method and a device for synchronizing two bus systems and a corresponding arrangement comprising two bus systems according to the preambles of the independent claims, wherein the time control takes place via reference messages. Background technique

[0002] Such reference messages are used, for example, in FlexRay or in TTCAN for the generation of basic periodic messages on a bus system within the scope of time-controlled communication. Such a bus system is necessary because the networking of control devices, sensors and actuators has increased dramatically in recent years in modern vehicle construction or mechanical engineering, especially in the field of machine tools and in automation. In this case, synergistic effects can be achieved by distributing the functions over several control devices. The communication between the different stations of such a distributed system therefore takes place increasingly via a bus syst...

Claims

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