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 JP61002874A external-priority patent/JP2534655B2/ja
Priority claimed from JP61002873A external-priority patent/JPH0784866B2/ja
Priority claimed from JP61002872A external-priority patent/JP2539370B2/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 (en])

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
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
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

Publications (1)

Publication Number Publication Date
IN168572B true IN168572B (en]) 1991-05-04

Family

ID=27275559

Family Applications (1)

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

Country Status (6)

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

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
EP0319089B1 (en) * 1987-11-28 1995-03-15 Hitachi Construction Machinery Co., Ltd. Safety device for hydraulic closed circuit
IN171213B (en]) * 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
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
US5170625A (en) * 1989-07-27 1992-12-15 Hitachi Construction Machinery Co., Ltd. Control system for hydraulic pump
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
WO1992006306A1 (en) * 1990-09-28 1992-04-16 Hitachi Construction Machinery Co., Ltd. Control system of hydraulic pump
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
CN101981325B (zh) * 2008-03-31 2013-11-06 株式会社小松制作所 建筑机械的旋转驱动控制系统
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
GB2072890B (en) * 1979-10-15 1983-08-10 Hitachi Construction Machinery Method of controlling internal combustion engine and hydraulic pump system
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
EP0062072B1 (en) * 1980-10-09 1987-05-20 Hitachi Construction Machinery Co., Ltd. Method for controlling a 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
EP0232722A2 (en) 1987-08-19
EP0232722A3 (en) 1989-08-23
CN1010794B (zh) 1990-12-12
DE3779435D1 (de) 1992-07-09
EP0232722B1 (en) 1992-06-03
DE3779435T2 (de) 1993-01-28
KR900002409B1 (ko) 1990-04-14
KR870007366A (ko) 1987-08-18
CN87100122A (zh) 1987-07-29
US4809504A (en) 1989-03-07

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