Car-mounted bus controller

A vehicle-mounted bus and controller technology, which is applied in the program control and electrical program control of the sequence/logic controller, can solve the problems that the real-time performance of data communication cannot be guaranteed, and the communication requirements cannot be met.

Active Publication Date: 2014-02-05
SHANDONG INST OF ADVANCED TECH CHINESE ACAD OF SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the system is working, it is necessary to judge whether each bus has data reception in turn. If the vehicle only uses the CAN bus as the backbone network, the real-time performance of the data communication of the backbone bus inside the car cannot be guaranteed.
At the same time, it cannot meet the communication requirements of many different types of buses.

Method used

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  • Car-mounted bus controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A vehicle-mounted bus controller, characterized in that: comprising

[0051] The circuit board 1 may be a conventional printed circuit board (PCB, Printed Circuit Board), and the circuit board 1 is provided with signal lines for data transmission.

[0052] The main control chip 2, the backbone bus module interface 3, and the bus topology module interface 4 placed on the circuit board; wherein,

[0053] The backbone bus module interface 3 is used to access different buses as the backbone bus, further comprising:

[0054] The backbone bus module interface I5 is connected with the main control chip 2, and transmits the bus data on the connected backbone bus to the main control chip 2; at the same time, receives the bus data processed by the main control chip 2 and transfers the processed bus data to the main control chip 2; The data is transferred to the corresponding bus.

[0055] The backbone bus module interface II6 is connected with the main control chip 2, and trans...

Embodiment 2

[0061] As an embodiment of the present invention, on the basis of the above-mentioned embodiment 1, the circuit board is also provided with:

[0062] The non-bus transmission signal input module receives externally input signals not transmitted on the bus, and transmits the signals to the main control chip for processing.

[0063] The non-bus signal output module receives the signal transmitted on the non-bus processed by the main control chip and outputs it to the non-bus line.

[0064] A non-bus signal input module and a non-bus signal output module are also arranged on the circuit board of an automobile vehicle-mounted bus controller, and the non-bus signal input module transmits the signals collected on the non-bus to the main control chip, and the main control chip After the signal is received, it is processed, and the processed signal is sent to the non-bus output module, which further enhances the function of the main control chip.

Embodiment 3

[0066] As an embodiment of the present invention, on the basis of the above-mentioned embodiment 1 or 2, the non-bus signal input module further includes:

[0067] The analog quantity input sub-module is used to input analog quantity signals to the main control chip, such as accelerator pedal signals and brake pedal signals.

[0068] The switch input sub-module is used to input switch signals to the main control chip, such as key switch signals, charging switch signals, gear switch signals, and air conditioner switch signals.

[0069] The PWM input sub-module is used to input PWM signals to the main control chip, such as vehicle speed and wheel speed signals.

[0070] A non-bus signal input module of an automobile vehicle-mounted bus controller includes: an analog quantity input submodule, a switch quantity input submodule and a PWM input submodule. Different types of signals can be identified by setting corresponding sub-modules, which is convenient for the identification of...

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Abstract

Disclosed is a car-mounted bus controller. By arranging a main bus module port, different types of buses can be connected in to serve as main buses, a master-control chip preferably processes transmission of bus data on the main bus module port I, different buses can be selected to serve as a main network, the instantaneity of data distribution of the main buses is met, and the master-control chip can convert and transmit the data among the buses as needed. Through a bus topology module port which is arranged on a circuit board and connected with the master-control chip, the bus data transmitted by an externally connected bus can be sent to the master-control chip, the bus data processed by the master-control chip are sent to the externally connected bus, and therefore topology of the car-mounted buses is achieved by externally connecting other bus modules as needed.

Description

technical field [0001] The invention relates to automobile electronic control technology. Specifically, it relates to an automobile vehicle-mounted bus controller. Background technique [0002] With the continuous development of automobile technology, the number of electronic control units used in automobiles is increasing, and the number of wiring harnesses in automobiles is also increasing, resulting in more and more lines of electrical systems in automobiles. The increase of lines leads to a shortage of space inside the car, increases the cost, and increases the difficulty of maintenance. In order to solve these problems, the application of vehicle bus is born. The on-board bus can simplify wiring, reduce vehicle weight, reduce cost, reduce energy consumption, realize rapid information transmission and data exchange between electronic control units, and enhance the reliability and safety of vehicle electronic systems. At present, there are four main buses commonly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
Inventor 徐国卿王德勇李卫民尉进常明
Owner SHANDONG INST OF ADVANCED TECH CHINESE ACAD OF SCI CO LTD
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