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Star coupler for a bus system, bus system having such a star coupler, and method for exchanging signals in a bus system

A bus system and connector technology, applied in the direction of data exchange through path configuration, star/tree network, transmission system, etc., can solve the problem that the active star junction is not suitable, etc.

Inactive Publication Date: 2012-11-28
AUDI AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the purely analog mode of operation of the active star point in DE 102005061395 A1, this active star point is not suitable for use in time-controlled / time-controlled systems

Method used

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  • Star coupler for a bus system, bus system having such a star coupler, and method for exchanging signals in a bus system
  • Star coupler for a bus system, bus system having such a star coupler, and method for exchanging signals in a bus system

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Embodiment Construction

[0030] The star coupling generally designated "10" has a plurality of connections 11 . In particular, FlexRay buses FR1 , FR2 , FR3 . . . FRn can be connected to the connection. From the point of view of the entire bus system, these represent individual bus branches. Each connecting portion 11 is connected with a transceiver device 12 (the transceiver device can also be called a bus driver). The transceiving device converts the analog signal input through the connection part 11 into a digital signal, and sends the digital signal to the data processing device 13, and the transceiving device 12 receives the digital data from the data processing device 13 and converts the digital data into an analog signal sent to the connection part 11.

[0031] The digital data processing device 13 can be designed as an FPGA ("Field Programmable GateArray", Field Programmable Gate Array), or can be designed as a microcontroller or a digital signal processor. The figure shows the functional s...

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PUM

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Abstract

The invention relates to a star coupler (10) having the capability of differentiating signals that come in via connections (11) according to the time slot in which said signals arrive and of forwarding said signals to at least one other connection (11) depending on the connection (11) by means of which the signals arrive and the time slot of said signals. In particular, an association is possible, wherein the star coupler (10) treats the bus system once as a single bus system and in another time slot virtually divides the bus system into two partial systems.

Description

technical field [0001] The invention relates to a star coupling for a bus system and to a bus system using such a star coupling. The invention also relates to a method for signal exchange in a bus system, in which a plurality of bus branches are connected to one another via a star coupling. Background technique [0002] The star coupler is the core component of the star line. Several bus branches are connected to such a star coupler. Each bus branch comprises at least one control device, wherein at least a part of the control devices can transmit and at least a part of the control devices can receive, preferably at least a part of the control devices can both transmit and receive . The task of the star coupler is to transmit the signal input from one branch to the other branches. Here, an active star coupler amplifies the signal. Thus, for example from DE 10 2005 061 395 A1 an active star junction / neutral point (Sternpunkt) is known for use in communication systems with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/44
CPCH04J3/0685H04L12/417H04L2012/40241H04L12/44
Inventor P·米尔布雷特
Owner AUDI AG