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System fault diagnosis method and device for driving motor, equipment and electric vehicle

A fault diagnosis and drive motor technology, applied in the drive motor system fault diagnosis device, drive motor system fault diagnosis, electric vehicle field, can solve the problems of passenger damage, vehicle loss of control, accurate monitoring, etc., to ensure the effect of safe operation

Inactive Publication Date: 2018-06-12
CHONGQING CHANGAN AUTOMOBILE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the motor itself, the real-time working status of electromagnetic and mechanical components such as coils and bearings is also difficult to accurately monitor. Once a fault occurs, if the diagnosis system does not handle it in time, the vehicle will face the risk of losing control and cause serious damage to passengers.

Method used

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  • System fault diagnosis method and device for driving motor, equipment and electric vehicle
  • System fault diagnosis method and device for driving motor, equipment and electric vehicle
  • System fault diagnosis method and device for driving motor, equipment and electric vehicle

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Embodiment Construction

[0044] The core of this application is to provide a method for fault diagnosis of the drive motor system, which can timely predict the faults of the drive motor system that affect the safe operation of electric vehicles, diagnose and process the faults in advance, and further ensure the safe operation of the vehicle; another aspect of the present invention A core is to provide a device and equipment for fault diagnosis of a driving motor system and an electric vehicle, all of which have the above-mentioned beneficial effects.

[0045] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments ...

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Abstract

The invention discloses a system fault diagnosis method for a driving motor. The method comprises the steps that a torque parameter is acquired according to received output torque; whether or not theoutput torque exceeds a preset parameter of the output torque is determined; if yes, a corresponding early warning instruction of the output torque parameter is executed. According the method, systemfaults of the driving motor affecting the safe operation of an electric vehicle can be timely predicted, and the faults are diagnosed and processed in advance to further ensure the safe operation of the vehicle. The invention further discloses a system fault diagnosis device for the driving motor, equipment and the electric vehicle, which all have the above advantages.

Description

technical field [0001] The present application relates to the field of driving motors of new energy vehicles, in particular to a method for fault diagnosis of a driving motor system, and also relates to a device and equipment for fault diagnosis of a driving motor system and an electric vehicle. Background technique [0002] With the popularization of electric vehicles, people have higher and higher requirements for electric vehicles, especially in terms of driving safety and timely and correct handling of various sudden failures. [0003] At present, electric vehicles are generally driven by electric motors. Compared with internal combustion engines, a large number of electronic components are used in electric motors and electric drive systems. Under various harsh conditions, the reliability of their operation is still far behind that of mechanical internal combustion engines. For the motor itself, the real-time working status of electromagnetic and mechanical components su...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34
Inventor 饶界才立忠赵姗汪坤
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD