Vehicle CAN bus analysis device and method

A CAN bus and bus analysis technology, applied in the direction of measuring devices, instruments, measuring electronics, etc., can solve the problems of not supporting automatic identification of bus types and adaptive bus baud rates, high purchase cost of upper software, and high cost of software upgrades. Achieve the effect of good identification of bus type, low cost and easy maintenance

Active Publication Date: 2017-04-19
HUIZHOU DESAY SV AUTOMOTIVE
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Problems solved by technology

However, their hardware, high-level software purchase costs are high, software upgrade costs are high, and the old and new versions are incompatible, resulting

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  • Vehicle CAN bus analysis device and method
  • Vehicle CAN bus analysis device and method
  • Vehicle CAN bus analysis device and method

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[0050] The method and device for analyzing a vehicle-mounted CAN bus of the present invention will be further described below with reference to the accompanying drawings.

[0051] A vehicle-mounted CAN bus analysis device, which can realize the automatic identification of vehicle-mounted CAN bus type and baud rate, and realize the analysis of vehicle-mounted CAN bus at the same time, such as figure 1 As shown, it specifically includes a power supply module 1, a CAN transceiver module 2, a circuit logic module, and a processor module 4 for power supply. The processor module 4 is connected to the vehicle CAN bus through the CAN transceiver module 2, and at the same time, after acquiring the vehicle CAN bus data, it is connected to the external analysis device through the USB module 45. In this embodiment, the external analysis device is the PC terminal 5. . At the same time, the PC terminal 5 can send various instructions to the analysis device through the USB module 45 to complete...

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Abstract

The invention discloses a vehicle CAN bus analysis device. The device comprises a power supply module used for supplying power, a CAN transceiver module, a circuit logic module and a processor module, wherein the processor module 4 is connected with a vehicle CAN bus through the CAN transceiver module and is then connected with an external analysis device through a USB module after acquiring the data of the vehicle CAN bus. The invention further provides a vehicle CAN bus analysis method. The method comprises steps that S10, a type of the vehicle CAN bus is identified; S20, a baud rate of the vehicle CAN bus is determined according to the type of the vehicle CAN bus; and S30, reverse function point analysis on the vehicle CAN bus is carried out according to the type and the baud rate of the vehicle CAN bus. The device and the method are advantaged in that low cost, easy maintenance and simple operation are realized, the type and the baud rate of the vehicle CAN bus can be better automatically identified, analysis and development cost of bus function points can be effectively reduced, and efficiency is improved.

Description

technical field [0001] The invention relates to the field of vehicle system research and development, in particular to a vehicle CAN bus analysis device and method. Background technique [0002] With the development and maturity of vehicle CAN bus technology, it has been widely used in automobiles. The functions of the bus are becoming more and more diverse and complex. This is undoubtedly a huge challenge for the automotive aftermarket to improve the market competitiveness of products through the application of bus functions; at present, some companies have developed some bus analysis tools, such as Vector, Intrepidcs have developed some bus tools and host computers software, they have a certain ability to reverse analyze the bus function. However, their hardware, high-level software purchase costs are high, software upgrade costs are high, and the incompatibility of the old and new versions leads to difficult maintenance, complex operations, complex functions, and the sh...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 彭飞黄晓亮胡彪刘小键
Owner HUIZHOU DESAY SV AUTOMOTIVE
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