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EP0718496A3 - Système électrohydraulique à assistance variable - Google Patents

Système électrohydraulique à assistance variable Download PDF

Info

Publication number
EP0718496A3
EP0718496A3 EP95308558A EP95308558A EP0718496A3 EP 0718496 A3 EP0718496 A3 EP 0718496A3 EP 95308558 A EP95308558 A EP 95308558A EP 95308558 A EP95308558 A EP 95308558A EP 0718496 A3 EP0718496 A3 EP 0718496A3
Authority
EP
European Patent Office
Prior art keywords
electro
hydraulic system
variable assist
sensed
motor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP95308558A
Other languages
German (de)
English (en)
Other versions
EP0718496A2 (fr
Inventor
Matthew B. Dernier
Ulisses Duarte Camilo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lockheed Martin Corp
Original Assignee
Lockheed Martin Corp
Martin Marietta 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 Lockheed Martin Corp, Martin Marietta Corp filed Critical Lockheed Martin Corp
Publication of EP0718496A2 publication Critical patent/EP0718496A2/fr
Publication of EP0718496A3 publication Critical patent/EP0718496A3/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0201—Current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0202—Voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2207/00—External parameters
    • F04B2207/01—Load in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
EP95308558A 1994-12-19 1995-11-28 Système électrohydraulique à assistance variable Withdrawn EP0718496A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US35850694A 1994-12-19 1994-12-19
US358506 1994-12-19

Publications (2)

Publication Number Publication Date
EP0718496A2 EP0718496A2 (fr) 1996-06-26
EP0718496A3 true EP0718496A3 (fr) 1998-12-02

Family

ID=23409939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95308558A Withdrawn EP0718496A3 (fr) 1994-12-19 1995-11-28 Système électrohydraulique à assistance variable

Country Status (1)

Country Link
EP (1) EP0718496A3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5668328A (en) * 1996-07-17 1997-09-16 Applied Power Inc. Method and apparatus for hydraulically tightening threaded fasteners
DE19842565B4 (de) * 1998-09-03 2005-08-25 Ksb Ag Automatische Ermittlung der PID-Reglerparameter für einen Druckregelkreis in Mehrpumpenanlagen
US6863502B2 (en) 2000-04-14 2005-03-08 Actuant Corporation Variable speed hydraulic pump
US6935639B1 (en) * 2004-02-18 2005-08-30 Visteon Global Technologies, Inc. Mean pressure estimation for compressible fluid strut
FR2870570B1 (fr) * 2004-05-21 2006-08-18 Koyo Hpi Soc Par Actions Simpl Systeme de groupe electro-pompe pourvu de moyens de limitation de la pression du fluide hydraulique fourni par la pompe
JP2011515616A (ja) * 2008-03-26 2011-05-19 テクニ ウォータージェット プロプライエタリー リミテッド 交互の回転を直線的変位に変換する駆動機構を備えた超高圧ポンプ
US8534687B2 (en) 2010-07-05 2013-09-17 Fluid Ride Ltd. Suspension strut for a vehicle
AT522933B1 (de) 2019-09-06 2021-04-15 Weber Hydraulik Gmbh Tragbares, akkubetriebenes Hydraulikaggregat für hydraulische Rettungswerkzeuge

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145161A (en) * 1977-08-10 1979-03-20 Standard Oil Company (Indiana) Speed control
DE3210082A1 (de) * 1981-04-02 1982-10-21 IWE Ingenieurgesellschaft für wirtschaftliche Energienutzung mbH, 6078 Neu-Isenburg Verfahren und schaltungsanordnung zur regelung der drehzahl eines pumpenmotors
US5131507A (en) * 1989-06-15 1992-07-21 Mitsubishi Denki Kabushiki Kaisha Hydraulic elevator control apparatus using VVVF to determine the electric drive motor rotational speed
EP0557543A1 (fr) * 1991-01-31 1993-09-01 Ranco Incorporated Of Delaware Commande de moteur à vitesse variable
EP0607888A1 (fr) * 1993-01-21 1994-07-27 Still Gmbh Contrôle de direction hydraulique pour véhicule électrique
US5467281A (en) * 1993-03-13 1995-11-14 Toyoda Koki Kabushiki Kaisha Controller for power steering apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145161A (en) * 1977-08-10 1979-03-20 Standard Oil Company (Indiana) Speed control
DE3210082A1 (de) * 1981-04-02 1982-10-21 IWE Ingenieurgesellschaft für wirtschaftliche Energienutzung mbH, 6078 Neu-Isenburg Verfahren und schaltungsanordnung zur regelung der drehzahl eines pumpenmotors
US5131507A (en) * 1989-06-15 1992-07-21 Mitsubishi Denki Kabushiki Kaisha Hydraulic elevator control apparatus using VVVF to determine the electric drive motor rotational speed
EP0557543A1 (fr) * 1991-01-31 1993-09-01 Ranco Incorporated Of Delaware Commande de moteur à vitesse variable
EP0607888A1 (fr) * 1993-01-21 1994-07-27 Still Gmbh Contrôle de direction hydraulique pour véhicule électrique
US5467281A (en) * 1993-03-13 1995-11-14 Toyoda Koki Kabushiki Kaisha Controller for power steering apparatus

Also Published As

Publication number Publication date
EP0718496A2 (fr) 1996-06-26

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