Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language)

A technology for fault diagnosis and information matching, applied in electrical testing/monitoring, etc.

Active Publication Date: 2013-03-20
重庆工业赋能创新中心有限公司
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  • Abstract
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Problems solved by technology

[0006] In order to solve the problem that the fault diagnosis information database of each car factory of the automobile ECU fault diagnosis instrument needs to be upd

Method used

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  • Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language)
  • Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language)
  • Automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on XML (Extensive Makeup Language)

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Embodiment Construction

[0014] In the present invention, the fault diagnosis information database is stripped from the diagnostic instrument program and stored in the external memory SD card of the diagnostic instrument, and the database is designed as follows: a fault matching information txt file and a data flow information txt file are established for each automobile manufacturer form. In this way, when it is necessary to update the fault diagnosis information of a car factory, it is only necessary to replace the txt file corresponding to the car factory in the SD card of the diagnostic instrument. This method can fundamentally solve the problem that the fault diagnosis information database of the diagnostic instrument needs to be periodically updated. The update problem can only be obtained by upgrading the program of the diagnostic instrument. At the same time, the present invention designs a simple method of writing and storing the fault diagnosis information of each car factory in a txt file w...

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Abstract

The invention provides an automobile ECU (Electronic Control Unit) fault diagnosis information matching method based on an XML (Extensible Makeup Language), which comprises the following steps: establishing a fault diagnosis information database for each automobile manufacturer aiming at the problem that the ECU fault diagnosis information is required to be periodically upgraded, so that the use is inconvenient, compiling by adopting the XML and respectively storing in corresponding txt files; establishing a fault matching information txt file and a data flow information txt file; storing the fault diagnosis information database into an SD (Secure Digital) card of an external memory of a diagnostic instrument; and matching the ECU fault information through invoking from the SD card and analyzing the XML files of the automobile manufacturer to conveniently realize the works of fault code analysis and data flow information analysis of the diagnostic instrument. When the fault diagnosis information of a certain automobile manufacturer is required to be upgraded, the txt files corresponding to the automobile manufacturer in the SD card of the diagnostic instrument are only required to be replaced, so that the use is convenient.

Description

technical field [0001] The invention belongs to the technical field of automatic control, in particular to the fault diagnosis technology of an electric control unit of an automobile. Background technique [0002] At present, most of the automotive ECU (electronic control unit) fault diagnostic instruments are designed by large automobile manufacturers. The design principle is to pack all the current mainstream automotive ECU fault information into the system software of the diagnostic instrument and download it to the micro In the controller, the newly added vehicle fault information is added to the diagnostic instrument system software every once in a while, and the original diagnostic instrument can diagnose more vehicle ECU fault information by upgrading the diagnostic instrument system. There is a disadvantage in the above design principle. With the continuous production of new manufacturers and new models of cars, the system software of the diagnostic instrument will c...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 黄智宇陈倍新冯辉宗孙小芳李宗华李澌翰
Owner 重庆工业赋能创新中心有限公司
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