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A vehicle intelligent fault diagnosis system and method based on modern signal processing technology

A fault diagnosis system and signal processing technology, applied in the general control system, neural learning method, control/regulation system, etc., can solve the problems of not being able to meet the requirements of automobile diagnosis, not knowing the time change of spectral components, etc., and improve the accuracy of diagnosis Performance and reliability, reduce dependence factors, and broad application prospects

Active Publication Date: 2020-12-29
安徽省爱夫卡电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional spectrum analysis can know which frequencies appear in the signal, but does not know the change of each spectral component with time, which cannot meet the requirements of automobile diagnosis

Method used

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  • A vehicle intelligent fault diagnosis system and method based on modern signal processing technology
  • A vehicle intelligent fault diagnosis system and method based on modern signal processing technology
  • A vehicle intelligent fault diagnosis system and method based on modern signal processing technology

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Embodiment

[0049] Such as figure 1 As shown, an automotive intelligent fault diagnosis system based on modern signal processing technology, including a diagnostic platform, a lower computer communication module and an automotive ECU;

[0050] The lower computer communication module is connected with the car ECU for data communication;

[0051] The diagnostic platform is connected with the communication module of the lower computer for data communication, sends diagnostic commands to the automotive ECU, receives the status data stream and fault codes returned by the automotive ECU, and performs fault diagnosis based on the received data.

[0052] The diagnostic platform includes: a main control module, a signal processing module, a feature extraction and status classification identification module, a fault code classification module and an artificial intelligence diagnosis module;

[0053] The main control module is connected with the communication module of the lower computer for data c...

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Abstract

The present invention discloses a system and a method for vehicle intelligent fault diagnosis based on a modern signal processing technology, belonging to the field of vehicle diagnosis. The system comprises a diagnosis platform, a lower computer communication module and a vehicle ECU; the lower computer communication module is connected with the vehicle ECU to perform data communication; and thediagnosis platform is connected with the lower computer communication module to perform data communication, send a diagnosis command to the vehicle ECU, receive a state data flow and fault codes returned by the vehicle ECU and perform fault diagnosis according to the received data. The present invention further discloses a method for vehicle intelligent fault diagnosis based on a modern signal processing technology. The system and the method employ the signal processing technology to perform feature extraction of the obtained data flow and employ the artificial intelligence technology to perform training and learning of target features to automatically complete classification and identification to meet the diversity and complexity requirements of the vehicle system, and therefore the system and the method have a higher intelligent level, a better environmental suitability and a wide application prospect.

Description

technical field [0001] The present invention relates to signal processing technology, artificial intelligence technology, automobile diagnosis technology and communication protocol technology, belongs to interdisciplinary field, is mainly used in the research and development of electronic products in automobile diagnosis equipment, and can also be applied to other faults involving signal processing and artificial intelligence technology diagnostic applications. Background technique [0002] At present, automobile electronic control systems are becoming more and more complex, and automobile faults are complex and diverse. However, the commonly used diagnostic equipment can only display fault codes and automobile data streams. It is difficult to accurately estimate and identify the cause of automobile faults in real time. Therefore, in In the process of automobile fault diagnosis, more needs to rely on the technical level of maintenance personnel, which brings certain risks to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02G06K9/62G06K9/00G06N3/08
CPCG05B23/0221G05B23/0254G06F30/20
Inventor 朱志峰姚勇蔡卫平
Owner 安徽省爱夫卡电子科技有限公司
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