IN168572B - - Google Patents

Info

Publication number
IN168572B
IN168572B IN37/CAL/87A IN37CA1987A IN168572B IN 168572 B IN168572 B IN 168572B IN 37CA1987 A IN37CA1987 A IN 37CA1987A IN 168572 B IN168572 B IN 168572B
Authority
IN
India
Application number
IN37/CAL/87A
Other languages
English (en)
Inventor
Eiki Izumi
Yasuo Tanaka
Hiroshi Watanabe
Shigetaka Nakamura
Original Assignee
Hitachi Construction Machinery
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
Priority claimed from JP61002873A external-priority patent/JPH0784866B2/ja
Priority claimed from JP61002872A external-priority patent/JP2539370B2/ja
Priority claimed from JP61002874A external-priority patent/JP2534655B2/ja
Application filed by Hitachi Construction Machinery filed Critical Hitachi Construction Machinery
Publication of IN168572B publication Critical patent/IN168572B/en

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
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • 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
    • F04B49/08—Regulating by delivery pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
    • F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
    • F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels
    • 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
    • F04B49/065—Control using electricity and making use of computers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
IN37/CAL/87A 1986-01-11 1987-01-12 IN168572B (xx)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61002873A JPH0784866B2 (ja) 1986-01-11 1986-01-11 原動機と油圧ポンプを含む系の駆動装置
JP61002872A JP2539370B2 (ja) 1986-01-11 1986-01-11 原動機と油圧ポンプを含む系の駆動装置
JP61002874A JP2534655B2 (ja) 1986-01-11 1986-01-11 原動機と油圧ポンプを含む系の駆動装置

Publications (1)

Publication Number Publication Date
IN168572B true IN168572B (xx) 1991-05-04

Family

ID=27275559

Family Applications (1)

Application Number Title Priority Date Filing Date
IN37/CAL/87A IN168572B (xx) 1986-01-11 1987-01-12

Country Status (6)

Country Link
US (1) US4809504A (xx)
EP (1) EP0232722B1 (xx)
KR (1) KR900002409B1 (xx)
CN (1) CN1010794B (xx)
DE (1) DE3779435T2 (xx)
IN (1) IN168572B (xx)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742111A1 (de) * 1987-04-02 1989-06-29 Brueninghaus Hydraulik Gmbh Regeleinrichtung fuer wenigstens zwei mit einer gemeinsamen arbeitsdruckleitung in verbindung stehende hydrostatische maschinen veraenderlichen foerder- bzw. schluckvolumens
AU603907B2 (en) * 1987-06-30 1990-11-29 Hitachi Construction Machinery Co. Ltd. Hydraulic drive system
DE3853344T2 (de) * 1987-11-28 1995-11-09 Hitachi Construction Machinery Sicherheitsvorrichtung für einen geschlossenen hydraulischen Kreislauf.
IN171213B (xx) * 1988-01-27 1992-08-15 Hitachi Construction Machinery
JP2670815B2 (ja) * 1988-07-29 1997-10-29 株式会社小松製作所 建設機械の制御装置
JPH02107802A (ja) * 1988-08-31 1990-04-19 Hitachi Constr Mach Co Ltd 油圧駆動装置
US5048293A (en) * 1988-12-29 1991-09-17 Hitachi Construction Machinery Co., Ltd. Pump controlling apparatus for construction machine
DE3914904C2 (de) * 1989-05-05 1995-06-29 Rexroth Mannesmann Gmbh Regelung für eine lastabhängig arbeitende Verstellpumpe
DE69023116T2 (de) * 1989-07-27 1996-03-28 Hitachi Construction Machinery Co., Ltd., Tokio/Tokyo Anordnung zur steuerung einer hydraulischen pumpe.
JPH0826552B2 (ja) * 1989-07-27 1996-03-13 株式会社小松製作所 建設機械のポンプ吐出量制御システム
JP2578371B2 (ja) * 1989-09-22 1997-02-05 株式会社小松製作所 可変容量ポンプの容量制御装置
US5285642A (en) * 1990-09-28 1994-02-15 Hitachi Construction Machinery Co., Ltd. Load sensing control system for hydraulic machine
US5167121A (en) * 1991-06-25 1992-12-01 University Of British Columbia Proportional hydraulic control
JP3064574B2 (ja) * 1991-09-27 2000-07-12 株式会社小松製作所 油圧掘削機における作業油量切換制御装置
US5267441A (en) * 1992-01-13 1993-12-07 Caterpillar Inc. Method and apparatus for limiting the power output of a hydraulic system
DE4308198C1 (de) * 1993-03-15 1994-07-28 Rexroth Mannesmann Gmbh Drehmomentregelung über Schwenkwinkel bzw. Exzentrizität bei hydrostatischen Maschinen mit axialer und radialer Kolbenanordnung
KR950019129A (ko) * 1993-12-30 1995-07-22 김무 유압식 건설기계의 엔진-펌프 제어장치 및 방법
DE4405234C1 (de) * 1994-02-18 1995-04-06 Brueninghaus Hydraulik Gmbh Vorrichtung zur Summenleistungsregelung von wenigstens zwei hydrostatischen Verstellpumpen
JPH10196606A (ja) * 1996-12-27 1998-07-31 Shin Caterpillar Mitsubishi Ltd 油圧ポンプの制御装置
JPH10220359A (ja) * 1997-01-31 1998-08-18 Komatsu Ltd 可変容量型ポンプの制御装置
US5967756A (en) * 1997-07-01 1999-10-19 Caterpillar Inc. Power management control system for a hydraulic work machine
US6314727B1 (en) 1999-10-25 2001-11-13 Caterpillar Inc. Method and apparatus for controlling an electro-hydraulic fluid system
US6684636B2 (en) 2001-10-26 2004-02-03 Caterpillar Inc Electro-hydraulic pump control system
DE10159519A1 (de) 2001-12-04 2003-07-17 Zahnradfabrik Friedrichshafen Verfahren zur Ansteuerung einer Druckversorgungseinrichtung in einem Hydraulikkreis
US6848254B2 (en) * 2003-06-30 2005-02-01 Caterpillar Inc. Method and apparatus for controlling a hydraulic motor
JP4804137B2 (ja) 2005-12-09 2011-11-02 株式会社小松製作所 作業車両のエンジン負荷制御装置
US20080181793A1 (en) * 2007-01-31 2008-07-31 Sanjay Ishvarlal Mistry Electric Feedback/Yoke Angle Sensor For Position Feedback
DE102007033146B4 (de) * 2007-07-13 2012-02-02 Schwäbische Hüttenwerke Automotive GmbH & Co. KG Verstellventil für die Verstellung des Fördervolumens einer Verdrängerpumpe
DE112009000713B4 (de) * 2008-03-31 2016-10-06 Komatsu Ltd. Regelsystem für Schwenkantriebe von Baumaschinen
KR100919436B1 (ko) * 2008-06-03 2009-09-29 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 복수의 가변용량형 유압펌프 토오크 제어시스템 및 그제어방법
US8935009B2 (en) * 2011-05-06 2015-01-13 Caterpillar Inc. Method and apparatus for controlling multiple variable displacement hydraulic pumps
US8911216B2 (en) * 2011-05-06 2014-12-16 Caterpillar Inc. Method, apparatus, and computer-readable storage medium for controlling torque load of multiple variable displacement hydraulic pumps
CN102555805B (zh) * 2011-12-15 2015-04-01 中联重科股份有限公司 机动车、机动车的后车部分的控制系统及车速控制方法
US9611931B2 (en) * 2012-05-24 2017-04-04 GM Global Technology Operations LLC Method to detect loss of fluid or blockage in a hydraulic circuit using exponentially weighted moving average filter
DE102019219451A1 (de) * 2019-07-26 2021-01-28 Robert Bosch Gmbh Hydraulische Druckmittelversorgungsanordnung für eine mobile Arbeitsmaschine und Verfahren
CN113153722B (zh) * 2021-03-16 2023-05-23 四川宏华电气有限责任公司 一种应用于页岩气开采的压裂泵扭矩异常自动检测系统

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162874A (en) * 1977-11-07 1979-07-31 Parker-Hannifin Corporation Horsepower summation control for variable displacement
US4274257A (en) * 1979-01-08 1981-06-23 Eaton Corporation Anti-stall controller
US4395199A (en) * 1979-10-15 1983-07-26 Hitachi Construction Machinery Co., Ltd. Control method of a system of internal combustion engine and hydraulic pump
JPS56139316A (en) * 1980-01-07 1981-10-30 Komatsu Ltd Power loss reduction controller for oil-pressure type construction machine
KR850000749B1 (ko) * 1980-06-04 1985-05-24 히다찌겡끼 가부시기 가이샤 유압 전동장치에 있어서의 회로 압력제어장치
JPS5872762A (ja) * 1980-08-06 1983-04-30 Hitachi Constr Mach Co Ltd 油圧駆動装置の制御装置
US4606313A (en) * 1980-10-09 1986-08-19 Hitachi Construction Machinery Co., Ltd. Method of and system for controlling hydraulic power system
US4561250A (en) * 1981-02-10 1985-12-31 Hitachi Construction Machinery Co., Ltd. Hydraulic drive system having a plurality of prime movers
JPS57143180A (en) * 1981-02-26 1982-09-04 Hitachi Constr Mach Co Ltd Control method of variable displacement oil hydraulic pump
JPS57161303A (en) * 1981-03-30 1982-10-04 Hitachi Constr Mach Co Ltd Oil hydraulic circuit controller
JPS5817202A (ja) * 1981-07-24 1983-02-01 Hitachi Constr Mach Co Ltd 油圧回路の制御方法
DE3232695C2 (de) * 1982-09-02 1984-08-16 Hydromatik GmbH, 7915 Elchingen Leistungsregel-Vorrichtung für eine Hydropumpe
DE3517104A1 (de) * 1985-05-11 1986-11-13 Mannesmann Rexroth GmbH, 8770 Lohr Antriebssystem mit einer verstellbaren hydrostatischen maschine
US4655689A (en) * 1985-09-20 1987-04-07 General Signal Corporation Electronic control system for a variable displacement pump

Also Published As

Publication number Publication date
CN87100122A (zh) 1987-07-29
CN1010794B (zh) 1990-12-12
KR900002409B1 (ko) 1990-04-14
EP0232722B1 (en) 1992-06-03
DE3779435T2 (de) 1993-01-28
US4809504A (en) 1989-03-07
KR870007366A (ko) 1987-08-18
EP0232722A3 (en) 1989-08-23
DE3779435D1 (de) 1992-07-09
EP0232722A2 (en) 1987-08-19

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