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Motor controller fault data record and access method and system

A motor controller and fault data technology, which is applied in the field of motor controller fault data recording and access, can solve problems such as inability to accurately determine the cause of the fault, inability to determine the cause of the fault, and achieve the effect of preventing the loss of fault data.

Inactive Publication Date: 2018-06-15
WISDRI WUHAN AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

The first method only knows the type of fault at the moment of fault occurrence, but does not know why the fault occurred
The second method knows the fault type and necessary environmental variables at the time of the fault, and the environmental data at the time of the fault cannot judge the cause of the fault
Both have the problem of being unable to accurately determine the cause of the failure

Method used

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  • Motor controller fault data record and access method and system

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Embodiment Construction

[0014] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.

[0015] The invention provides a motor controller fault data recording and access method, such as figure 1 As shown, the motor controller failure data recording and access method include the following steps:

[0016] S1. Record multiple sets of data of multiple environmental variables related to the operation of the motor controller before the fault occurs, and store them in an array of random storage RAM;

[0017] S2, recording multiple sets of data of the same environment variable after the failure occurs, and storing them in an array of random storage RAM;

[0018] S3. Write and st...

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Abstract

The present invention discloses a motor controller fault data record and access method and system. A plurality of multi-group data of environment variables related to operation of a motor controller are recorded prior to generation of faults, multi-group data of the same environment variables are recorded after generation of faults, fault reasons are analyzed according to the multi-group data of each variable prior to and after generation of faults of the motor controller to more accurately analyze and obtain fault problems and reasonably solve the faults, all the data is written into an EEPROM (Electrically Erasable Programmable Read-Only Memory) to further avoid fault data loss and randomly read the fault data for fault analysis.

Description

technical field [0001] The invention belongs to the field of automatic control of electric vehicles, and in particular relates to a method for recording and accessing fault data of a motor controller. Background technique [0002] During the operation of the motor controller, various faults often occur, such as overvoltage faults, undervoltage faults, and overcurrent faults. After the motor controller fault occurs, how to analyze and determine the cause of the fault is the method of troubleshooting. The usual practice is to analyze the cause of the failure based on the controller operation data recorded when the failure occurred. At present, there are two commonly used fault recording methods: 1. When a fault is detected, record the current fault type; 2. When a fault is detected, record the necessary environmental data at the time of the current fault, such as voltage, current, angle, and speed . The first method only knows the type of the fault at the moment when the fa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 李晓松王国强王胜勇杨桃桃张旭梅管丽丽张松
Owner WISDRI WUHAN AUTOMATION