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Intelligent automobile fault diagnosis method and system

A fault diagnosis system and fault diagnosis technology, applied in the general control system, control/adjustment system, test/monitoring control system, etc., can solve the problems of inaccurate positioning, automated testing and poor user experience, and achieve convenience for after-sales maintenance personnel , Quickly locate problems, and have high portability

Inactive Publication Date: 2019-01-08
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a humanized and automated fault diagnosis and processing strategy and system for smart cars, aiming to solve the problems of inability to accurately locate problems, automated testing and poor user experience in existing methods

Method used

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  • Intelligent automobile fault diagnosis method and system
  • Intelligent automobile fault diagnosis method and system
  • Intelligent automobile fault diagnosis method and system

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Embodiment Construction

[0030] Such as Figures 1 to 3 As shown, the present invention provides a fault diagnosis method for smart cars, which includes the steps of: fault triggering, fault condition judgment, and fault processing feedback, wherein: the fault triggering: read the ECU according to the instruction of the fault trigger source Take the fault diagnosis operation, and obtain the fault code; the fault condition judgment: query the condition of fault generation according to the fault code, and obtain the state information of the current condition through the diagnosis service for each fault condition; the fault processing feedback: set The obtained state information is compared with the threshold in the database, the abnormal conditions and data are recorded, and the analysis results are processed and classified according to the priority.

[0031] As a further improvement, the fault handling feedback further includes: broadcasting by voice and / or sending a limit instruction to the controller...

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Abstract

The invention discloses an intelligent automobile fault diagnosis method and system. The method comprises the following steps: reading fault diagnosis operation for an ECU (Electronic Control Unit) toacquire a fault code; inquiring a fault occurrence condition according to the fault code, and acquiring state information of a current condition through a diagnosis service for each fault condition;and comparing the acquired state information with a threshold value in a database, recording abnormal conditions and data, processing analysis results, and classifying the results according to a priority level. The system comprises a fault triggering module, a fault diagnosis module, an ECU and fault processing module; and the fault diagnosis module comprises fault triggering, fault condition judgment and fault processing feedback in sequence. A fault processing strategy can quickly position a problem to assist after-sales service personnel.

Description

technical field [0001] The invention relates to a fault diagnosis method and system for an intelligent automobile. Background technique [0002] With the development of automobile electrification and intelligence, more and more ECUs are used in automobiles to improve power and emissions, improve safety performance and stability performance, as well as comfort and entertainment. For example, anti-lock braking systems, body stability systems, automatic transmission systems, active suspension systems, airbag systems, gateways, instrumentation systems, electric steering systems, electronic parking brakes, parking Auxiliary devices and the like are equipped with their own ECUs. The more high-end models, the more ECUs are equipped. For example, the 2012 Audi A6L has a maximum configuration of nearly 60 electronic control systems. This poses a huge challenge to the rapid location of ECU faults. At the same time, consumers have higher and higher requirements for fault maintenance...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 孙涛许东辉束照坤
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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