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Parallel operation of a bus system and a can bus system having a device for compensating interference

一种CAN总线、总线系统的技术，应用在用户站领域，能够解决受限使用等问题

Active Publication Date: 2015-07-08
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] For the reasons described, the interconnection of a CAN bus system with a second bus system can only be used to a very limited extent without other measures

Method used

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  • Parallel operation of a bus system and a can bus system having a device for compensating interference
  • Parallel operation of a bus system and a can bus system having a device for compensating interference
  • Parallel operation of a bus system and a can bus system having a device for compensating interference

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Embodiment Construction

[0032] figure 1 A system 1 is shown with a bus system 2 , referred to below as CAN bus system 2 , and a further bus system 3 integrated in a common bus line 4 . CAN bus system 2 and further bus system 3 can also be referred to as channels of common bus line 4 . Messages in the form of signals 5 , 6 are transmitted on the bus line 4 to subscriber stations 7 , 8 which are connected to the bus line 4 . Subscriber station 7 is a subscriber station of further bus system 3 . Subscriber station 8 is a subscriber station of CAN bus system 2 . In the CAN bus system 2 the messages are transmitted in the form of signals 5 according to the CAN protocol, in the further bus system 3 the messages are transmitted in the form of signals 6 . The signals 5, 6 interact as described in more detail below. Nevertheless, CAN bus system 2 can be operated in parallel with further bus systems 3 , such as LIN, FlexRay, Ethernet, etc., on a common bus line 4 .

[0033] The system 1 can be used in a v...

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Abstract

A subscriber station for connection to a bus line and a method for compensating interference resulting from a CAN bus system in a reception signal are provided. Said bus line is used to transmit a signal of a CAN bus system in coexistence with a signal of another bus system. The subscriber station comprises a receiving unit for receiving the entire signal and for compensating interference in the entire signal received, said interference resulting from an alternating output impedance of a subscriber station of the CAN bus system, which subscriber station is connected to the bus line.

Description

technical field [0001] The invention relates to a subscriber station for connection to a bus line and a method for compensating for disturbances in received signals caused by the CAN bus system. Background technique [0002] CAN bus systems are already established today as suitable standard bus systems in motor vehicles, hospitals, etc. In this standard bus system, messages or signals are transmitted according to the CAN specification in ISO 11898 between subscriber stations, which are also referred to as nodes. Subscriber stations are, for example, control units or display devices of the motor vehicle or the like. [0003] In order to achieve high data rates in structures such as motor vehicle control units, the introduction of new high-speed bus systems is currently being carried out. In this case, network segments are frequently constructed on the basis of different systems, for example LIN, CAN, FlexRay, Ethernet etc. are used. Each bus system uses its own connection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04L12/40H04L69/14H04L69/40
CPCH04L1/0045H04L2001/0094G06F13/4068G06F13/362
Inventor P.尼克尔
Owner ROBERT BOSCH GMBH