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Communication control device, transmission/reception device, and communication method in bus system

A communication control and receiving device technology, applied in transmission systems, bus networks, digital transmission systems, etc.

Pending Publication Date: 2021-11-12
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leads to costs elsewhere, such as on the printed circuit board and in the microcontroller for the user station

Method used

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  • Communication control device, transmission/reception device, and communication method in bus system
  • Communication control device, transmission/reception device, and communication method in bus system
  • Communication control device, transmission/reception device, and communication method in bus system

Examples

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Embodiment Construction

[0047] As an example, figure 1 Shown is a bus system 1 which is designed in particular essentially for a CAN bus system, a CAN FD bus system, a CAN FD successor bus system and / or variants thereof, as described below. The CAN FD successor bus system is referred to below as CAN XL. The bus system 1 can be used in vehicles, in particular motor vehicles, aircraft or the like, or in hospitals or the like.

[0048] exist figure 1 In this case, the bus system 1 has a large number of subscriber stations 10 , 20 , 30 , each of which is connected to the bus 40 with a first bus core 41 and a second bus core 42 . The bus wires 41 , 42 can also be referred to as CAN_H and CAN_L and are used for electrical signal transmission after coupling in a dominant level or generating a recessive level for a signal in the transmit state. The messages 45 , 46 in the form of signals can be transmitted serially between the individual subscriber stations 10 , 20 , 30 via the bus 40 . The subscriber st...

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Abstract

The invention provides a communication control apparatus, a transmitting / receiving apparatus, and a method for communicating in a bus system. The communication control device has: a communication control module for generating a transmission signal for controlling a subscriber station to communicate with at least one other subscriber station, a first communication phase and a second communication phase being used in the bus system for exchanging messages between the subscriber stations; a STB connection, which is used for transmitting the operation type signaling signal to a transmitting / receiving device, wherein the transmitting / receiving device is designed to transmit a transmission signal to a bus of the bus system; and a run type coding block, which is used for generating a run type signaling signal signaled to the transmitting / receiving device from a signal signaled to the transmitting / receiving device that the transmitting / receiving device should be switched to a ready run type, wherein the transmission / reception device should switch to what operating type or whether the transmission / reception device should switch to a ready operating type depending on the communication on the bus.

Description

technical field [0001] The invention relates to a communication control device and a sending / receiving device for a subscriber station of a serial bus system, as well as a method for communicating in a serial bus system with high data rates and high error resistance Work. Background technique [0002] For communication between sensors and control devices (e.g. in vehicles), bus systems are usually used in which data are transmitted as messages in the ISO11898-1:2015 standard, which is CAN using CAN FD protocol specification. These messages are transmitted between bus users in the bus system, such as sensors, control units, transmitters, etc. [0003] In order to be able to transmit data at a higher bit rate than CAN, there is an option in the CAN FD message format for switching to a higher bit rate within the message. In this case, the maximum possible data rate is increased to values ​​exceeding 1 Mbit / s by using a higher clock rate in the area of ​​the data field. Such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/40
CPCH04L12/40013H04L12/40078H04L2012/40215H04B1/38H04L12/40169H04L2012/40273H04L12/40
Inventor A·穆特尔F·哈特维奇S·沃克尔
Owner ROBERT BOSCH GMBH
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