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Title:
MANAGEMENT DEVICE FOR POWER TRANSMISSION MECHANISM, MANAGEMENT METHOD FOR POWER TRANSMISSION MECHANISM, AND MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/119686
Kind Code:
A1
Abstract:
The present invention provides a management device capable of detecting the sensing of an abnormality (degradation) of a power transmission mechanism more precisely and accurately. A management device 30 for a power transmission mechanism that transmits a driving force from an electric motor 13 to a load-side device 12 comprises a current acquisition unit that acquires a current value of the electric motor 13 per unit process for driving the power transmission mechanism, a feature calculation unit 121 that divides the unit process into a plurality of sections and calculates an average current value by averaging the current values of the respective sections, and a diagnosis unit 122 that detects an abnormality. The diagnosis unit 122 calculates a state quantity estimation value on the basis of the average current value of the plurality of sections, and detects an abnormality in unit process on the basis of the state quantity estimation value.

Inventors:
TAKANO YUURI (JP)
KANEKO SATORU (JP)
DEGUCHI KENTA (JP)
OHASHI HIRONORI (JP)
MATSUMOTO YUTAKA (JP)
Application Number:
PCT/JP2022/021182
Publication Date:
June 29, 2023
Filing Date:
May 24, 2022
Export Citation:
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Assignee:
HITACHI INDUSTRY EQUIPMENT SYSTEMS CO LTD (JP)
International Classes:
G05B23/02; G01M13/02
Domestic Patent References:
WO2021234889A12021-11-25
Foreign References:
JP2017175775A2017-09-28
JPH08146057A1996-06-07
JP2019123006A2019-07-25
JP2021136779A2021-09-13
JP2009045510A2009-03-05
JP2002285974A2002-10-03
JPH11326147A1999-11-26
Attorney, Agent or Firm:
KAICHI IP (JP)
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