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Method for operating ethernet on-board network of motor vehicle, control unit, and ethernet on-board network

A technology of control unit and vehicle network, which is applied in the field of Ethernet vehicle network, can solve the problem that the speed cannot be used to control equipment software or programs, and achieve the effect of saving energy

Active Publication Date: 2020-11-10
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This raises the question: which connection path between the control units is best for which application, especially with regard to time delays, fail-safety, EMC (electromagnetic compatibility) and current transmission
But information about the topology of the network and the speed of that topology has not been available to control the software or programs in the device

Method used

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  • Method for operating ethernet on-board network of motor vehicle, control unit, and ethernet on-board network
  • Method for operating ethernet on-board network of motor vehicle, control unit, and ethernet on-board network
  • Method for operating ethernet on-board network of motor vehicle, control unit, and ethernet on-board network

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Embodiment Construction

[0046] figure 1 Motor vehicle 1 is shown in plan view. Motor vehicle 1 has an Ethernet vehicle network 2 . According to this exemplary embodiment, the Ethernet vehicle network 2 again has a plurality of control units, which can also be referred to as control devices or control devices. The control units are connected to one another by means of connection paths. Due to the existing topology of the Ethernet vehicle network 2 in this exemplary embodiment, there are several parallel communication paths between the control units. The connecting paths can consist, for example, of different media types or materials.

[0047] As the number of Ethernet variants increases, for example also dynamic changes of the connection speed will be used. This means, for example, that the velocity can be varied relative to the propagation time. For example, a 10 Gbit / s connection path can be changed to 100 Mbit / s in order to save energy. Since dynamic functions are involved here, it is possibl...

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Abstract

The invention relates to a method for operating an ethernet on-board network (2) of a motor vehicle (1), in which the following steps are carried out: determining a run time or delay (9) of a first signal (10) on a first connection path (6) between a first control unit (3) of the ethernet onboard network (2) and a second control unit (7) of the ethernet onboard network (2); determining a maximum speed (11) of the first connection path (6); and determining a type of transmission medium (12) of the first connection path (6) based on the connection delay and maximum speed (11).

Description

technical field [0001] The invention relates to a method for operating an Ethernet vehicle network of a motor vehicle. Furthermore, the invention relates to a control unit for a corresponding Ethernet vehicle network and an Ethernet vehicle network with a corresponding control unit. Background technique [0002] Control devices in vehicle networks are currently mostly only available via homogeneous connections. Usually there is no redundancy in the cable harness. However, it will be provided in the future that, for fail-safe reasons, the control unit is equipped with redundant current and data connections in order to be able to still communicate in the event of a fault, for example a cable break or a contact failure in a plug. Future vehicle networks, in particular Ethernet vehicle networks, are more interconnected similarly to networks known from other fields of information technology. [0003] This raises the question of which connection path between the control units i...

Claims

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Application Information

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IPC IPC(8): H04L12/725H04L12/26H04L12/721H04L12/707H04L45/24
CPCH04L43/0864H04L45/123H04L45/22H04L45/302H04W4/48H04L43/0852H04L67/12
Inventor H·青纳J·布兰德
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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