Title:
DIRECTION CHANGE VALVE MALFUNCTION PREDICTION SYSTEM AND MALFUNCTION PREDICTION METHOD, AND DIRECTION CHANGE VALVE MALFUNCTION INSPECTION SYSTEM AND INSPECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/053923
Kind Code:
A1
Abstract:
A direction change valve malfunction prediction system of the present invention comprises: a data acquisition unit for obtaining a plurality of pieces of operating time data for each direction change valve by repeatedly detecting, over an equipment operating elapse time, operating times of a plurality of direction change valves that change an operating direction of a piston rod by changing a supply direction of operating fluid supplied to a cylinder, by communicating with the cylinder including the piston rod; a deterioration indicator value calculating unit for calculating deterioration indicator values of a plurality of statistical deterioration indicators that may represent a malfunction of the direction change valve on the basis of the operating time data; and a determining unit that ranks the deterioration indicator values of the statistical deterioration indicators, calculated for each direction change valve, according to sizes, assigns a predetermined score to the direction change valve having a high value equal to or greater than a predetermined range from among the ranked deterioration indicator values, and determines a direction change valve expected to malfunction on the basis of the sum of the predetermined score.
Inventors:
WON YOUNG SIK (KR)
LEE JUN HO (KR)
LEE JUN HO (KR)
Application Number:
PCT/KR2023/012853
Publication Date:
March 14, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01M13/003; F16K37/00
Foreign References:
| KR20010015330A | 2001-02-26 | |||
| KR970066534A | 1997-10-13 | |||
| KR20220120456A | 2022-08-30 | |||
| KR20180073794A | 2018-07-03 | |||
| KR20080009512A | 2008-01-29 |
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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