IT1255823B - Sistema di controllo di un fluido elettroidraulico - Google Patents

Sistema di controllo di un fluido elettroidraulico

Info

Publication number
IT1255823B
IT1255823B ITMI922148A ITMI922148A IT1255823B IT 1255823 B IT1255823 B IT 1255823B IT MI922148 A ITMI922148 A IT MI922148A IT MI922148 A ITMI922148 A IT MI922148A IT 1255823 B IT1255823 B IT 1255823B
Authority
IT
Italy
Prior art keywords
sensors
signals
fluid
converted
processor unit
Prior art date
Application number
ITMI922148A
Other languages
English (en)
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ITMI922148A0 publication Critical patent/ITMI922148A0/it
Publication of ITMI922148A1 publication Critical patent/ITMI922148A1/it
Application granted granted Critical
Publication of IT1255823B publication Critical patent/IT1255823B/it

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0224—Process history based detection method, e.g. whereby history implies the availability of large amounts of data
    • G05B23/0227—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions
    • G05B23/0235—Qualitative history assessment, whereby the type of data acted upon, e.g. waveforms, images or patterns, is not relevant, e.g. rule based assessment; if-then decisions based on a comparison with predetermined threshold or range, e.g. "classical methods", carried out during normal operation; threshold adaptation or choice; when or how to compare with the threshold

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

In un sistema a fluido elettroidraulico sono controllati la linea di fluido 1, il serbatoio 2, le motopompe 4 è6, gli accumulatori 10 e la linea di scarico 13. Il sistema comprende dei sensori 14-40 per rivelare la temperatura, la pressione, il livello di fluido e la corrente delle motopompe nel sistema. Dei segnali provenienti dai sensori vengono convertiti nel sistema. Dei segnali provenienti dai sensori vengono convertiti 54 da un convertitore analogico/digitale in segnali digitali, letti e memorizzati da una unità di processore 58 come dati per un'analisi diagnostica.L'unità di processore (58) memorizza le informazioni, le confronta con quantità soglia prestabilite o valori precedenti ed emette un'indicazione di malfunzionamento ad un visualizzatore di stato, che indica la presenza o l'assenza di un malfunzionamento nel sistema.
ITMI922148A 1991-10-02 1992-09-18 Sistema di controllo di un fluido elettroidraulico IT1255823B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/770,192 US5319572A (en) 1991-10-02 1991-10-02 Electrohydraulic fluid monitor system

Publications (3)

Publication Number Publication Date
ITMI922148A0 ITMI922148A0 (it) 1992-09-18
ITMI922148A1 ITMI922148A1 (it) 1994-03-18
IT1255823B true IT1255823B (it) 1995-11-17

Family

ID=25087759

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922148A IT1255823B (it) 1991-10-02 1992-09-18 Sistema di controllo di un fluido elettroidraulico

Country Status (3)

Country Link
US (1) US5319572A (it)
CA (1) CA2079613A1 (it)
IT (1) IT1255823B (it)

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Publication number Priority date Publication date Assignee Title
US5629872A (en) * 1992-01-29 1997-05-13 Arch Development Corporation System for monitoring an industrial process and determining sensor status
EP0643345B1 (de) * 1993-09-02 1998-10-21 Siemens Aktiengesellschaft Datenverarbeitungsanlage zur Überwachung von Betriebszuständen einer technischen Anlage
EP0741895B1 (en) * 1994-02-03 2002-11-27 Ransomes America Corporation Hydraulic fluid leak detection system and method
US5608650A (en) * 1994-08-19 1997-03-04 Spectrel Partners, L.L.C. Systems and methods for testing pump flow rates
WO1996006332A1 (en) * 1994-08-19 1996-02-29 Pci Medical Systems for testing intravenous pumps
US5856929A (en) * 1994-08-19 1999-01-05 Spectrel Partners, L.L.C. Integrated systems for testing and certifying the physical, functional, and electrical performance of IV pumps
US5717603A (en) * 1994-08-19 1998-02-10 Spectrel Partners, L.L.C. Integrated test station for testing liquid flow and electrical safety characteristics of IV pumps
US6757630B2 (en) 1994-08-19 2004-06-29 Mediq/Prn Life Support Services, Inc. Integrated systems for testing and certifying the physical, functional, and electrical performance of IV pumps
US5761090A (en) * 1995-10-10 1998-06-02 The University Of Chicago Expert system for testing industrial processes and determining sensor status
DE19707173C5 (de) * 1997-02-22 2006-06-14 Voith Siemens Hydro Power Generation Gmbh & Co. Kg Maschinendiagnosesystem und Verfahren zur zustandsorientierten Betriebsüberwachung einer Maschine
JPH10261185A (ja) * 1997-03-19 1998-09-29 Hitachi Ltd 入出力混在形信号変換器
US6519938B1 (en) 1998-12-22 2003-02-18 Coltec Industries Inc. Recording and controlling pneumatic profiles
JP4407611B2 (ja) * 2005-10-06 2010-02-03 株式会社デンソー 燃料噴射制御装置
WO2011008874A1 (en) * 2009-07-15 2011-01-20 Integrated Designs, L.P. System and method for determining pump pressure based on motor current
US8838413B2 (en) 2011-05-12 2014-09-16 Saudi Arabian Oil Company Valve actuator fault analysis system
US10613558B2 (en) * 2017-09-13 2020-04-07 Heatcraft Refrigeration Products Llc Malfunction lighting
CN108547830B (zh) * 2018-05-15 2020-06-26 中国商用飞机有限责任公司 液压系统内泄漏测量装置
US11095246B1 (en) * 2020-02-13 2021-08-17 General Electric Company Redundant electric motor drive
CN118836197B (zh) * 2024-07-17 2025-10-03 中国长江电力股份有限公司 一种基于油压和油位的断路器液压操动机构故障诊断方法和系统
CN118934582B (zh) * 2024-09-11 2025-03-28 四川宏华电气有限责任公司 一种基于压裂泵泵组的超压保护方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757455A (fr) * 1969-10-16 1971-03-16 Westinghouse Electric Corp Systeme anti-emballement pour
US4213183A (en) * 1979-03-22 1980-07-15 Adaptronics, Inc. System for nondestructive evaluation of material flaw characteristics
US4698756A (en) * 1985-07-16 1987-10-06 Westinghouse Electric Corp. Generator stator winding diagnostic system
US5073862A (en) * 1987-08-26 1991-12-17 Carlson Peter J Method and apparatus for diagnosing problems with the thermodynamic performance of a heat engine
US4803040A (en) * 1988-01-21 1989-02-07 The United States Of America As Represented By The United States Department Of Energy Expert system for surveillance and diagnosis of breach fuel elements
US5132920A (en) * 1988-02-16 1992-07-21 Westinghouse Electric Corp. Automated system to prioritize repair of plant equipment
US5073499A (en) * 1988-04-15 1991-12-17 Westinghouse Electric Corp. Chemical diagnostic system
JPH0660826B2 (ja) * 1989-02-07 1994-08-10 動力炉・核燃料開発事業団 プラントの異常診断方法
US5056844A (en) * 1990-03-06 1991-10-15 Amistar Corporation Multiple jaw centering head structure for surface mounted component placement machines
US5122976A (en) * 1990-03-12 1992-06-16 Westinghouse Electric Corp. Method and apparatus for remotely controlling sensor processing algorithms to expert sensor diagnoses
US5223207A (en) * 1992-01-29 1993-06-29 The United States Of America As Represented By The United States Department Of Energy Expert system for online surveillance of nuclear reactor coolant pumps

Also Published As

Publication number Publication date
ITMI922148A0 (it) 1992-09-18
CA2079613A1 (en) 1993-04-03
US5319572A (en) 1994-06-07
ITMI922148A1 (it) 1994-03-18

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