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Segment of a communication network of a land motor vehicle, and associated land motor vehicle

A technology for motor vehicles and network segments, which is applied in the direction of vehicle components, circuits or fluid pipelines, electrical components, etc., and can solve problems such as improper operation and damaged network components

Active Publication Date: 2021-01-22
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] - In the event of a malfunction or improper use of the "DIAG" tool, it is conceivable that the "DIAG" tool may emi

Method used

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  • Segment of a communication network of a land motor vehicle, and associated land motor vehicle
  • Segment of a communication network of a land motor vehicle, and associated land motor vehicle
  • Segment of a communication network of a land motor vehicle, and associated land motor vehicle

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Embodiment Construction

[0035] according to figure 2 In the first embodiment of the invention shown, the communication network of land motor vehicles consists of a plurality of different types of on-board communication sub-networks connected together by a communication network segment 100 comprising a central computer 101 .

[0036] The computer 101 is arranged in the housing and has an interface device 102 which assumes the role of a gateway by in particular allowing communication frames and / or electrical signals to be transmitted between at least a first hardware port 103 and a second hardware port 104 . Preferably, the hardware ports 103 and 104 are adapted to be connected to a data bus, and the vehicular communication subnetwork may especially be of the high-speed CAN, CAN FD, low-speed fault-tolerant CAN, Flexray, LIN, etc. types.

[0037] The computer 101 ensuring the gateway function is also connected to one or more subnets, in particular via a hardware port 103, dedicated to the interface wi...

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PUM

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Abstract

The invention relates to a segment of a communication network of a land motor vehicle (100, 200) comprising a computer (101, 201), a switching module (108, 208), and a protection module (107, 207). These elements of the network segment allow a point-to-point connection to be established in a controlled manner between an on-board diagnostic (OBD) socket and a critical part of the communication network of the vehicle in which there is at least one computer for the control of the motor of the vehicle.

Description

technical field [0001] The present invention relates to communication networks for land motor vehicles (special purpose vehicles, light utility vehicles, heavy goods vehicles, coaches, buses, campers, construction vehicles, agricultural vehicles, military vehicles, quadricycles, tricycles, motorcycles, sidecars) field. The invention relates in particular to communication network segments of land motor vehicles. The invention is particularly applicable to motor vehicles. Background technique [0002] Such as figure 1 As shown, most of the various on-board multiplexed communication networks (high-speed CAN, CAN FD (Flexible Data Rate), low-speed fault-tolerant CAN, LIN, Flexray) in current vehicles are connected to The gateway between the BCM (Body Control Module (body control module)) central computer. This gateway, integrated into the BCM central computer or possibly transferred to a dedicated computer, allows the transfer of information (signals or frames) between the d...

Claims

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Application Information

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IPC IPC(8): H04L29/06
CPCH04L63/02B60R16/0232
Inventor 让·马克·戴诺
Owner PEZHO SITROEN AUTOMOBILS SA