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User station used for bus system and data transmission method in bus system

A technology of bus system and user station, which is applied in the field of data transmission in the user station of the bus system and the bus system, which can solve the problems of danger, inappropriateness, secret monitoring, etc., and achieve low risk, reduced number, and less weight of cables and cable cost effects

Active Publication Date: 2016-10-05
ROBERT BOSCH GMBH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, branch lines are especially unsuitable for transmission by means of amplitude modulation at high transmission rates due to reflections.
[0008] A further disadvantage is that messages that are intended only for the individual bus subscribers can also always be heard by all other subscriber stations and can therefore also be spied on and manipulated undesirably.
This looks dangerous especially in the case of external devices

Method used

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  • User station used for bus system and data transmission method in bus system
  • User station used for bus system and data transmission method in bus system
  • User station used for bus system and data transmission method in bus system

Examples

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Embodiment Construction

[0036] figure 1 A bus system 1 is shown, and the bus system may be, for example, a CAN bus system, a CAN FD bus system, or the like. The bus system 1 may be used in transportation vehicles, especially in automobiles, airplanes, etc., or in hospitals, etc.

[0037] in figure 1 The middle bus system 1 has a bus line 3 to which a plurality of subscriber stations 10 to 80 are connected. The messages N1, N2, N3 can be transmitted via the bus line 3 in the form of signals between the various subscriber stations 10 to 80. The bus line 3 is implemented, for example, as a double core wire or a core pair. The user stations 10 to 80 may be, for example, control equipment, sensors, display equipment, etc. of a motor vehicle.

[0038] As in figure 1 As shown in the figure, the subscriber stations 10, 40, 50, 70, 80 respectively have a communication control device 11, a transmitting / receiving device 12, a switch device 13, and terminal resistors L, R for the bus line 3. The subscriber station...

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Abstract

The invention provides user stations (10;40;50;70;80) of bus systems (1,2) and a data transmission method of bus systems (1;2). User stations (10;40;50;70;80) comprise another user station transmitting information (N1;N2;N3) to bus systems (1;2) or receiving information (N1;N2;N3) from another user station and switching devices (13,43) for switching to switch devices (13;43)connected to another user station of the bus systems between a switching-on state and a switching-off state; the switching devices (13;43) are configured to selectively control of at least another user station from the user stations (10;40;50;70;80) to the bus system (1;2) on the basis of at least part of the information (N1;N2;N3) received by the transmission / reception devices (12;22).

Description

Technical field [0001] The invention relates to a user station for a bus system and a method for data transmission in the bus system. Background technique [0002] The driving system is currently under development. In the case of the driving system, the means of transport travel on public roads autonomously or without humans having any influence on various steering, braking or acceleration processes. In the process of this development, more and more influential driving assistance functions are installed in the vehicle for the complete autonomous driving of the vehicle. The driving assistance function specifically controls various driving situations, such as parking, stop-and-go, highway driving, etc., and must be available in a reliable manner. This places high demands on the data transmission rate between control devices. [0003] The CAN bus system can be used, for example, for communication between sensors and control devices in vehicles, especially automobiles. In the case o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/4013G06F13/36G06F13/368G06F13/4022G06F13/4063
Inventor R.马乔尔S.魏森迈尔
Owner ROBERT BOSCH GMBH
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