Fault diagnosis method, device, electronic device and storage medium for electric vehicle

An electric vehicle and fault diagnosis technology, which is applied in the direction of measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problems of insufficient accuracy, large workload and low efficiency of fault diagnosis methods, and achieve the effect of improving reliability and efficiency.

Active Publication Date: 2022-05-10
WUHAN INSTITUTE OF TECHNOLOGY
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the defects of the traditional fault diagnosis method based on expert judgment, such as heavy workload, low efficiency and insufficient accuracy, the present invention provides a fault diagnosis method, device, electronic equipment and storage medium for electric vehicles

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  • Fault diagnosis method, device, electronic device and storage medium for electric vehicle
  • Fault diagnosis method, device, electronic device and storage medium for electric vehicle
  • Fault diagnosis method, device, electronic device and storage medium for electric vehicle

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Embodiment Construction

[0043] The following examples are further explanations and supplements to the present invention, and do not constitute any limitation to the present invention.

[0044] A fault diagnosis method for an electric vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] refer to figure 1 As shown, the present invention provides a fault diagnosis method for electric vehicles, including the following steps S1 to S3.

[0046] In step S1, the fault signal to be classified of the electric vehicle is obtained.

[0047] Among them, the fault signal to be classified is a continuous long-term signal representing information on fault characteristics, and the continuous long-term signal refers to continuous data in the time domain, that is, a time series signal with a certain length. For example, the fault signal to be classified may include a time-series signal of voltage representing a fault characteristic o...

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Abstract

The invention relates to a fault diagnosis method, device, electronic equipment and storage medium of an electric vehicle, belonging to the technical field of electric vehicles. The method includes: obtaining the fault signal to be classified of the electric vehicle; performing feature extraction processing on the fault signal to be classified to obtain target input data; inputting the target input data into the trained fault classification model to obtain the fault diagnosis result of the electric vehicle. In the present invention, the fault signal to be classified is subjected to feature extraction processing and then input to the trained fault classification model, which can make more accurate fault diagnosis, and can automatically classify a large number of fault signals of electric vehicles, thereby realizing rapid fault diagnosis , Overcoming the defects of heavy workload, low efficiency and insufficient accuracy of the traditional fault diagnosis method based on expert judgment, it is more conducive to practical application.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a fault diagnosis method, device, electronic equipment and storage medium for electric vehicles. Background technique [0002] Under the increasingly serious environmental crisis, in order to reduce energy consumption and reduce pollutant emissions, new energy vehicles such as electric vehicles have received great attention as efficient and sustainable transportation methods. As an important part of the electric vehicle, the battery system's function and safety directly affect the overall performance of the electric vehicle. In recent years, due to the frequent occurrence of electric vehicle safety accidents caused by the failure of the battery system of electric vehicles, the demand for accurate and timely fault diagnosis of the battery system is also increasing. [0003] However, the fault diagnosis of the battery system of the traditional electric vehicle, because i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06K9/00G01R31/367
CPCG01R31/367G06F2218/08G06F2218/12G06F18/24
Inventor 刘军夏志炜侯青
Owner WUHAN INSTITUTE OF TECHNOLOGY
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