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C302-model gateway control unit

A technology of gateway control and vehicle model, applied in the direction of network connection, etc., to achieve the effect of facilitating deployment and meeting consumption requirements

Inactive Publication Date: 2010-08-04
FAW GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The M6 ​​platform in production uses a non-independent gateway, that is, a control unit not only has its own control function, but also realizes the special communication function of the gateway, resulting in great cost pressure and technical pressure for network changes and replacements.

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment 1

[0027] The C302 model gateway control unit is characterized in that: the C302 model adopts a 3-way CAN bus structure, including power CAN, comfort information CAN and instrument diagnosis CAN, and the rates are 500K, 100K and 500K respectively; Sharing and demand on each CAN bus Design a separate gateway as a routing and distribution center for messages and signals; route and convert messages of different rates, package and unpack signals, and also manage and monitor the network of each CAN bus center.

[0028] The bus network topology of the vehicle is composed of power CAN, instrument diagnosis CAN, comfort information CAN, body controller LIN network, and electric window LIN network. The structural block diagram is as follows: figure 1 As shown, the gateway occupies the core position of the entire topology structure. It mainly implements message routing and forwarding, message filtering and reorganization, and network management of the CAN bus system of the vehicle. Reason...

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Abstract

The invention relates to a C302-model gateway control unit characterized in that a C302 model adopts a bus structure with three CANs (Controller Area Networks) comprising a power CAN, a comfortable information CAN and an instrument diagnosis CAN, and the speeds are respectively 500K, 100K and 500K; a single gateway is designed as a route distribution center of messages and signals according to the Baud rate differences of the signals and the sharing and demands of the signals on each CAN; the route transformation is carried out on the messages with different speeds, the signals are packed and unpacked, and meanwhile, the route distribution center is also the network managing and monitoring center of each CAN bus; the time, the priority and the like of the information interaction among CAN systems are reasonably distributed; the evolution of the bus network from one CAN to a plurality of CANs and from an non-independent gateway to a central gateway is necessarily realized by a route device, and in other words, the development of the gateways is the necessary product for the updating and the function clarification of a network topology, thereby reducing the bus load rate of each subnetwork.

Description

Technical field: [0001] The invention relates to a gateway control unit of a C302 vehicle type, which is applied to a vehicle network communication system of the C302 vehicle type. Background technique: [0002] At present, in domestic cars, the use of independent gateways is relatively small, and it is being tested by users. FAW Car's self-owned model B131 adopts 1-channel CAN design, that is, the minimum configuration; in order to simplify the vehicle wiring harness, ensure the reliability and stability of functions, and realize the bus platform, more and more control units are added to CAN realized ranks. With the limitation of the bus load rate and signal function requirements, the multi-channel CAN system is imperative, which is also the requirement of maximizing the platform. The M6 ​​platform in production uses a non-independent gateway, that is, a control unit not only has its own control function, but also realizes the special communication function of the gateway...

Claims

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Application Information

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IPC IPC(8): H04L12/66
Inventor 李英唐昌武杨雪峰
Owner FAW GROUP
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