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A fault diagnosis system, method, device, equipment and storage medium thereof

A fault diagnosis system and fault diagnosis technology, applied in the field of power electronics, can solve problems such as inaccurate diagnosis results and inaccurate detection results

Active Publication Date: 2022-05-13
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In practical applications, the electrical parameters of the inverter and the drive motor are often used to determine whether the electric vehicle is faulty, but it is difficult to detect faults such as drive motor bearing failure, drive motor aging, gear wear, and abnormal lubrication of the reducer, which leads to detection inaccurate result
[0005] Therefore, the existing fault diagnosis methods have the problem of inaccurate diagnosis results

Method used

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  • A fault diagnosis system, method, device, equipment and storage medium thereof
  • A fault diagnosis system, method, device, equipment and storage medium thereof
  • A fault diagnosis system, method, device, equipment and storage medium thereof

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Embodiment Construction

[0068] "And / or" in the embodiment of this application describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B, which may mean: A exists alone, B exists alone, and A and B exist simultaneously , where A and B can be singular or plural.

[0069] The term "connection" involved in this application describes the connection relationship between two objects, and can represent two connection relationships. Condition.

[0070] "Multiple" in the embodiments of the present application means two or more.

[0071] In the embodiments of the present application, "exemplary", "in some embodiments", "in another embodiment" and the like are used as examples, illustrations or illustrations. Any embodiment or design described herein as "example" is not to be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word example is intended to present concepts in a con...

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Abstract

The present application provides a fault diagnosis system, method, device, equipment and its storage medium, which are used to improve the accuracy of fault diagnosis results. The fault diagnosis system may include: a noise receiving module, a processing module, an electrical signal receiving module and a fault diagnostic module. Wherein, the processing module is connected with the noise receiving module, and the fault diagnosis module is respectively connected with the electric signal receiving module and the processing module. The noise receiving module is used to connect with the power system and is used to receive the first sound wave signal of the power system; the processing module is used to receive the sound wave signal and process the sound wave signal to obtain the second sound wave signal; the electric signal receiving module is used to communicate with the power system The system is connected, and is used to receive the electrical signal parameters of the power system; the fault diagnosis module is used to receive the second acoustic signal and electrical signal parameters, and use the second acoustic signal and electrical signal parameters to diagnose the power system to obtain the fault diagnosis of the power system result.

Description

technical field [0001] The present application relates to the technical field of power electronics, and in particular to a fault diagnosis system, method, device, equipment and storage medium thereof. Background technique [0002] With the rapid development of the automobile industry and the extensive application of electric vehicles (Battery Electric Vehicle, BEV), automobile fault diagnosis technology has also been rapidly improved, which plays an irreplaceable role in automobile safety and maintenance. [0003] The power system of an electric vehicle is at least composed of a drive motor, a reducer and an inverter. Specifically, the inverter is an electrical control component, the reducer is a mechanical component, and the drive motor is an electrical control component and a mechanical component. The inverter can convert the received electric energy into a power supply voltage for the drive motor, and the drive motor can operate at Under the action of rotation, the outpu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/007G01R31/00G01D21/02
CPCG01M17/007G01R31/007G01D21/02
Inventor 唐杰任晓斌
Owner HUAWEI DIGITAL POWER TECH CO LTD