Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Decoupling unit of bus system

A bus system and decoupling technology, applied in the field of coupling units, can solve problems such as short circuit, internal bus system cannot work, dominate signal interference, etc., achieve low cost, prevent radiation interference, and eliminate signal delay.

Inactive Publication Date: 2004-06-30
TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH & CO KG
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vehicle collisions can lead, for example, to short circuits in external bus systems
Dominant signals permanently generated by the bus system can interfere with or even disable the internal bus system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Decoupling unit of bus system
  • Decoupling unit of bus system
  • Decoupling unit of bus system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] in the stated basis figure 1 In the exemplary embodiment, it is assumed that two controller area network (CAN) type two-conductor bus systems are connected to each other via a decoupling unit. The bus systems are designated as bus 1 and bus 2 in the figures. Each of the two bus systems is connected to an interface circuit 10 , 12 . These interface circuits may be commercially available transmitter / receiver circuits, in particular controller area network transceivers. Between the interface circuits 10, 12 a connection circuit is provided. The connection circuit is symmetrical between the interface circuits 10, 12 so that it functions equally in each direction of signal flow. Signal transfer between the interface circuits 10, 12 is effected from port Rx to port Tx. In each signal path between port Rx and port Tx is provided a filter device which blocks abnormal dominant signals but passes normal signals. In the preferred embodiment, these filters comprise monoflops 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The decoupling unit for two bus systems that are connected to one another includes a connecting circuit between two interface circuits (10,12). The first interface circuit (10) has ports for one of the two bus systems and a bidirectional data port for the connecting circuit. A second interface (12) circuit has ports for the other bus system and a bidirectional data port for the connecting circuit. This connecting circuit includes a filter (14,16) for blocking abnormal dominant signals and passing normal signals between the bus systems.

Description

technical field [0001] The invention relates to a coupling unit for interconnecting two bus systems. Background technique [0002] When two identical or different bus systems are connected to each other, an error in one of the bus systems can lead to a corresponding error in the other bus system. When one bus system imposes a signal condition on another bus system, this is called a dominant signal. When a bus system is disturbed by a permanently dominant signal, the other bus system connected to it will also collapse. [0003] The invention relates in particular to bus systems for vehicles. Such bus systems, which are increasingly installed in vehicles, can be differentiated according to different functions with different priorities. For example, an external bus system provided in the area of ​​the exterior vehicle and an internal bus system for control and safety functions are provided differently. Since the different bus systems communicate with one another, there is t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/00G06F11/00H04L5/16
CPCG06F11/0796H04L5/16G06F13/00
Inventor 卡尔-黑恩兹·尼克尔彼得·古特勒伊伯哈德·奥瑟斯蒂芬·多赫曼
Owner TRW AUTOMOTIVE ELECTRONICS & COMPONENTS GMBH & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com