Vehicle communication system

A car communication and car technology, applied in the field of car communication system, can solve the problems of high implementation cost and complicated coordination

Inactive Publication Date: 2018-10-23
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most direct way to ensure the security of the automotive communication network is physical isolation, such as connecting the OBD interface to the gateway to physically block the OBD from snooping on the vehicle network. For wireless access, a dual-chip physical isolation solution can be used to separate the firewall and The gateway is implemented separately, but it also complicates the system structure and the coordination between each unit, and the implementation cost is high

Method used

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  • Vehicle communication system
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Embodiment Construction

[0023] Such as figure 1 As shown, according to an embodiment of the present invention, a vehicle communication system is provided, which includes: a central gateway 101; a diagnostic port 102 for providing diagnosis of each functional unit in the vehicle; a plurality of Ethernet nodes 104 for realizing the vehicle The Ethernet communication between each functional unit in the car; the switch 103 is interconnected with each Ethernet node 104 respectively, and is used to realize the information exchange between each Ethernet node 104; a plurality of electronic control units 105 are used to control the Each functional unit; and, the wireless communication unit 106, used to realize wireless communication between the vehicle and external systems.

[0024] Among them, the central gateway 101 is respectively coupled with the diagnostic port 102, each Ethernet node 104, each electronic control unit 105, wireless communication unit 106 and switch 103 in communication, so as to realize ...

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PUM

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Abstract

The invention relates to a vehicle communication system comprising: a diagnosis port for providing diagnosis for functional units in a vehicle; at least one Ethernet node used for realizing Ethernetcommunication between the functional units in the vehicle; at least one electronic control unit usedfor controlling the functional units in the vehicle; a wireless communication unit used for realizing wireless communication between the vehicle communication system and an external system; a switch respectively connected with the Ethernet nodes and used for realizing information interaction among the Ethernet nodes; and a central gateway used for forming communication coupling with the diagnosis port, the at least one Ethernet node, at least one electronic control unit, the wireless communication unit and the switch for implementing the protocol conversion between the Ethernet communication and the CAN / CAN FD protocol communication in the vehicle. A vehicle-mounted gateway with a simple structure, a low implementation cost and a high integration level can be provided, and then the vehicle communication system with high reliability and a better application prospect can be provided.

Description

technical field [0001] The present invention relates to the technical field of automobile communication, and more specifically, relates to an automobile communication system. Background technique [0002] With the development of various advanced technologies in the automotive field, more and more intelligent functions are integrated into the car. Various countries and major companies may develop their own custom communication protocols, or may turn to more standard communication protocols, such as controller area network CAN, low-cost serial communication network local interconnection network LIN, FlexRay, MOST, etc., various technologies The application of the application will inevitably produce conversion problems between various protocols. [0003] According to statistics, an average family car today contains 30 ECUs (Electronic Control Units). With the new concepts of smart cars and Internet cars, the number of controllers and the amount of data transmitted on the bus ...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L29/06H04L29/08H04L12/40
CPCH04L12/40006H04L12/66H04L63/02H04L67/10H04L67/12H04L69/08H04L2012/40215H04L2012/40273
Inventor 董宗祥
Owner SAIC GENERAL MOTORS
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