A vehicle terminal self-diagnosis method and related device

By coordinating the in-vehicle central control unit and the central gateway, and combining local artificial intelligence models, the problems of high operational threshold, data privacy risks, and conflicts between multiple diagnostic sources in existing vehicle fault diagnosis solutions have been solved. This enables drivers to perform self-service fault diagnosis and intuitive fault explanations, thereby improving diagnostic efficiency and data security.

CN122411368APending Publication Date: 2026-07-17CHINA FAW CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA FAW CO LTD
Filing Date
2026-03-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing vehicle fault diagnosis solutions rely on external devices and network connections, which are difficult to operate, costly, inefficient, and pose a risk of data privacy leaks. They also lack intuitive fault explanations and multi-diagnostic source conflict management.

Method used

By coordinating the in-vehicle central control unit and the central gateway, and combining local artificial intelligence models, the system enables drivers to perform self-service fault diagnosis. The central gateway arbitration mechanism resolves conflicts between multiple diagnostic sources, and a local fault interpretation model is deployed to convert fault codes into natural language descriptions. Multiple report export methods are also provided.

Benefits of technology

It enables self-service fault diagnosis without the need for external devices and network connections, lowers the technical threshold, improves diagnostic efficiency, protects user data privacy, and provides intuitive fault explanations and multiple ways to obtain reports.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of automobile electronic diagnosis, in particular to a vehicle terminal self-diagnosis method and related equipment, the method comprising: obtaining vehicle state information, generating a diagnosis activation prompt when a preset activation condition is met; in response to the driver's confirmation operation, establishing a primary diagnosis session between the vehicle machine and the central gateway and a secondary diagnosis session between the gateway and the ECU; sending a fault code reading request to the ECU through the gateway and receiving the fault diagnosis code; inputting the fault diagnosis code into the locally pre-trained fault interpretation model to generate a natural language diagnosis report; according to the driver's selection, exporting the diagnosis report through the local storage medium or Bluetooth low-power point-to-point and releasing the session. The present application realizes the driver's self-diagnosis under the condition of zero peripheral device and zero flow, avoids multiple diagnosis source conflicts through gateway arbitration, provides intuitive fault explanation by using local AI model, and improves the diagnosis convenience and data security.
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