Diagnosis method and system based on vehicle electronic control module software information identification

Abstract

The invention discloses a diagnosis method based on vehicle electronic control module software information identification. The diagnosis method based on the vehicle electronic control module softwareinformation identification comprises the following steps: sending a self-identification command to a vehicle ECU; receiving electronic control module software information returned by the vehicle ECU;parsing a software version number from the electronic control module software information as a keyword; matching the keyword in a correspondence table of keywords and diagnosis files of a database, and finding a corresponding diagnosis file; and generating a diagnosis interface through the diagnosis file. The diagnosis method based on the vehicle electronic control module software information identification disclosed by the invention can quickly and effectively confirm the underlying software of the electronic control module on the vehicle, thereby finding the corresponding diagnosis file andgenerating the corresponding diagnosis interface, which facilitates the maintenance personnel to perform diagnosis and improves the diagnosis efficiency.

Description

technical field [0001] The invention relates to the technical field of vehicle diagnosis, in particular to a diagnosis method and system based on software information identification of a vehicle electronic control module. Background technique [0002] With the development of the automobile industry, the electronic control system of the vehicle is becoming more and more complex, and there are more and more electronic control modules with different functional types, including the module (ECU) for controlling the engine, the module (DCU) for controlling the post-processing, and the module for controlling The brake module (ABS), the body control module (CBCU), the gearbox control module (TCU), the instrument control module (ICU), etc., the functions of each module are different. [0003] The electronic control modules on the vehicle are produced by different manufacturers; at the same time, the functions of each module can be customized according to the needs of the vehicle manu...

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Problems solved by technology

[0004] Practitioners in the maintenance industry cannot quickly and effectively confirm the underlying software of the electronic control module on the vehicle, and there will be great troubles when performing diagnosis:

[0005] 1. Misidentified the wrong software, unable to establish a correct and effective connection, and unable to make further diagnosis;

[0006] 2. Even if an effective connection has been established with the misidentified software, the read information is wrong and an effective diagnosis cannot be made;

[0007] 3. It takes multiple attempts to confirm which underlying software is on a certain electronic control module

[0008] In short, when the underlying software of the vehicle's electronic control module cannot be quickly confirmed, the efficiency of diagnosis and maintenance is low

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