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Vehicle computer system based on CAN and LIN bus

A CAN bus, on-board computer technology, applied in the field of dedicated on-board computer control systems and on-board computer systems, can solve the problems of lack of integrated information and network technology application models, etc.

Inactive Publication Date: 2005-07-27
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of the on-board computer system in the car is still in the exploratory stage, and there is a lack of a more practical application model for integrating information and network technology.

Method used

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  • Vehicle computer system based on CAN and LIN bus
  • Vehicle computer system based on CAN and LIN bus
  • Vehicle computer system based on CAN and LIN bus

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] The central data processing integrated circuit IC1 adopts the model INTEL XSCALE PXA255 CPU, or INTEL XSCALE PXA27X CPU; the video acceleration display integrated circuit IC2 adopts the model SM501, the video codec integrated circuit IC3 adopts the model PHILIPS SAA7114; the interface expansion integrated circuit IC4 adopts The model is Taiwan Advantech's EVA210; CAN controller circuit adopts PHILIPS SJ1000 CAN controller, and is controlled by 8051 series single-chip microcomputer to communicate with IC1. It supports the video input of two cameras, and the switching of the video of the two cameras is realized through a switching circuit, and the chip used in the switching circuit is a multiplexer chip; the CAN bus is connected through the 921.6kbps high-speed serial port BTUART (port 24) of IC1 via TTL level, and then connected to the CAN controller circuit; the LIN bus is realized by connecting the LIN bus controller through the GPIO port.

[0028] The working process ...

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PUM

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Abstract

A vehicle computer based on CAN bus and LIN bus consists of host board, man-machine boundary and display. The host board includes five integrated circuits for different purpose, two controller circuits for CAN and LIN, board carried SDRAN and board carried BOOT FLASH. The said two buses are connected to main chip through their controllers. The oil pressure, speed, rotary rate, mileage, oil level, water temperature and fuel for vehicle are directly collected by the computer to be displayed on.

Description

1. Technical field [0001] The invention relates to a special on-vehicle computer control system for dynamic collection and display of vehicle information and centralized control of in-vehicle equipment, which belongs to the technical fields of computer control and automotive electronics applications. Specifically, it is a vehicle-mounted computer system based on CAN bus and LIN bus 2. Background technology [0002] At present, my country's automobile industry is in a period of rapid development, and the automobile industry has become one of the important pillar industries of my country's national economic development. The status of automotive electronics in the automotive industry is becoming more and more important. The digitalization, informatization, and networking of automotive electronics are the inevitable trend of the development of consumer automotive electronics technology in the 21st century. However, the application of the on-board computer sys...

Claims

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Application Information

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IPC IPC(8): B60R16/02G06F3/00G06F17/00
Inventor 金长新李伟
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD