JPS56139316A - Power loss reduction controller for oil-pressure type construction machine - Google Patents

Power loss reduction controller for oil-pressure type construction machine

Info

Publication number
JPS56139316A
JPS56139316A JP44980A JP44980A JPS56139316A JP S56139316 A JPS56139316 A JP S56139316A JP 44980 A JP44980 A JP 44980A JP 44980 A JP44980 A JP 44980A JP S56139316 A JPS56139316 A JP S56139316A
Authority
JP
Japan
Prior art keywords
switched
discharge
oil
valve
pump
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.)
Granted
Application number
JP44980A
Other languages
English (en)
Other versions
JPS6261742B2 (ja
Inventor
Michiaki Igarashi
Takayasu Inui
Kazuo Otsuka
Saburo Nogami
Satoru Nishimura
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP44980A priority Critical patent/JPS56139316A/ja
Priority to GB8040271A priority patent/GB2068889B/en
Priority to DE19803048210 priority patent/DE3048210A1/de
Priority to FR8027974A priority patent/FR2473130B1/fr
Publication of JPS56139316A publication Critical patent/JPS56139316A/ja
Priority to US06/467,961 priority patent/US4507057A/en
Publication of JPS6261742B2 publication Critical patent/JPS6261742B2/ja
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • 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
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • 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
    • 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
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B2207/04—Settings
    • F04B2207/042—Settings of pressure
    • 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
    • F04B2207/04—Settings
    • F04B2207/042—Settings of pressure
    • F04B2207/0421—Settings of pressure maximum
    • 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
    • F04B2207/04—Settings
    • F04B2207/042—Settings of pressure
    • F04B2207/0422—Settings of pressure minimum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/25—Pressure control functions
    • F15B2211/251—High pressure control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/265—Control of multiple pressure sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
JP44980A 1980-01-07 1980-01-07 Power loss reduction controller for oil-pressure type construction machine Granted JPS56139316A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP44980A JPS56139316A (en) 1980-01-07 1980-01-07 Power loss reduction controller for oil-pressure type construction machine
GB8040271A GB2068889B (en) 1980-01-07 1980-12-16 Control system fo hydraulic pumps of a civil engineering machine
DE19803048210 DE3048210A1 (de) 1980-01-07 1980-12-20 Steuersystem fuer die hydraulischen pumpen einer erdbewegungsmaschine
FR8027974A FR2473130B1 (fr) 1980-01-07 1980-12-30 Systeme de commande de pompes hydrauliques pour engins de genie civil
US06/467,961 US4507057A (en) 1980-01-07 1983-02-18 Control system for hydraulic pumps of a civil machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44980A JPS56139316A (en) 1980-01-07 1980-01-07 Power loss reduction controller for oil-pressure type construction machine

Publications (2)

Publication Number Publication Date
JPS56139316A true JPS56139316A (en) 1981-10-30
JPS6261742B2 JPS6261742B2 (ja) 1987-12-23

Family

ID=11474093

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44980A Granted JPS56139316A (en) 1980-01-07 1980-01-07 Power loss reduction controller for oil-pressure type construction machine

Country Status (5)

Country Link
US (1) US4507057A (ja)
JP (1) JPS56139316A (ja)
DE (1) DE3048210A1 (ja)
FR (1) FR2473130B1 (ja)
GB (1) GB2068889B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006242A1 (en) * 1987-02-13 1988-08-25 Caterpillar Inc. Control lever with load force feedback
JPH03235819A (ja) * 1990-02-13 1991-10-21 Fusao Yano 倣い運転式パワーシャベル

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245288A1 (de) * 1982-12-03 1984-06-14 O & K Orenstein & Koppel Ag, 1000 Berlin Verfahren zur einsparung von energie beim stellen eines ausruestungszylinders an einem hydraulikbagger durch eine hydraulikschaltung
US4801247A (en) * 1985-09-02 1989-01-31 Yuken Kogyo Kabushiki Kaisha Variable displacement piston pump
KR900002409B1 (ko) * 1986-01-11 1990-04-14 히다찌 겡끼 가부시끼가이샤 유압 구동장치의 펌프 입력마력 제어 시스템
DE3611553C1 (de) * 1986-04-07 1987-07-23 Orenstein & Koppel Ag Anordnung zum Betrieb eines dieselhydraulischen Antriebes
US4741159A (en) * 1986-04-08 1988-05-03 Vickers, Incorporated Power transmission
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems
JPS6432081A (en) * 1987-07-28 1989-02-02 Tokyo Keiki Kk Pressure flow controller for variable delivery pump
US4930992A (en) * 1987-07-09 1990-06-05 Tokyo Keiki Company Ltd. Control apparatus of variable delivery pump
FR2650635A1 (fr) * 1989-08-07 1991-02-08 Rexroth Sigma Procede de commande d'au moins une pompe a debit variable dans une installation electrohydraulique, et installation electrohydraulique mettant en oeuvre ce procede
GB2251232B (en) * 1990-09-29 1995-01-04 Samsung Heavy Ind Automatic actuating system for actuators of excavator
US5394696A (en) * 1990-12-15 1995-03-07 Barmag Ag Hydraulic system
DE59105057D1 (de) * 1990-12-15 1995-05-04 Barmag Barmer Maschf Hydrauliksystem.
FR2689576A1 (fr) * 1992-04-03 1993-10-08 Barmag Barmer Maschf Système hydraulique à régulation par pression différentielle.
JP3210221B2 (ja) * 1995-10-11 2001-09-17 新キャタピラー三菱株式会社 建設機械の制御回路
JPH10141310A (ja) * 1996-11-13 1998-05-26 Komatsu Ltd 圧油供給装置
US5967756A (en) * 1997-07-01 1999-10-19 Caterpillar Inc. Power management control system for a hydraulic work machine
JP3865590B2 (ja) * 2001-02-19 2007-01-10 日立建機株式会社 建設機械の油圧回路
US20030236489A1 (en) * 2002-06-21 2003-12-25 Baxter International, Inc. Method and apparatus for closed-loop flow control system
US6990807B2 (en) * 2002-12-09 2006-01-31 Coneqtec Corporation Auxiliary hydraulic drive system
JP2004347040A (ja) * 2003-05-22 2004-12-09 Kobelco Contstruction Machinery Ltd 作業機械の制御装置
JP5542016B2 (ja) * 2010-09-15 2014-07-09 川崎重工業株式会社 作業機械の駆動制御方法
US9429152B2 (en) * 2010-10-28 2016-08-30 Bosch Rexroth Corporation Method for controlling variable displacement pump
EP2673515A1 (en) * 2011-02-10 2013-12-18 Eaton Corporation Load sense control with standby mode in case of overload
GB2546485A (en) * 2016-01-15 2017-07-26 Artemis Intelligent Power Ltd Hydraulic apparatus comprising synthetically commutated machine, and operating method
CN109113979B (zh) * 2018-07-23 2021-06-01 珠海格力电器股份有限公司 压缩机控制方法、控制装置及控制系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133202U (ja) * 1974-09-03 1976-03-11
JPS53100601A (en) * 1977-02-14 1978-09-02 Komatsu Mfg Co Ltd Controlling device for positioning slewing extremities of slewing type construction cars

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911911A (ja) * 1961-07-21
DE1528434A1 (de) * 1965-07-29 1969-09-25 Hymate Ges Fuer Hydr Automatik Hydraulische Reversiersteuerung mit Leistungsreglern
DE1801137A1 (de) * 1968-10-04 1970-04-16 Bosch Gmbh Robert Hydraulikanlage mit einer verstellbaren Pumpe
BE757640A (fr) * 1969-10-16 1971-04-16 Borg Warner Systemes hydrauliques, notamment pour la regulation d'une pompea debit variable
DE2004268A1 (de) * 1970-01-30 1971-08-05 Hitachi Ltd Einrichtung zur Steuerung von Pumpen fur den Betrieb hydraulischer Anlagen
DE2062368C3 (de) * 1970-12-18 1981-10-01 Indramat Gesellschaft für Industrie-Rationalisierung und Automatisierung mbH, 8770 Lohr Hydrostatisches Getriebe mit Leistungsbegrenzungssteuer
DE2111359A1 (de) * 1971-03-10 1972-09-28 Bosch Gmbh Robert Regeleinrichtung fuer eine Hydropumpe
BE794115A (fr) * 1971-03-24 1973-05-16 Caterpillar Tractor Co Dispositif de valve sommatrice
US3792791A (en) * 1971-11-17 1974-02-19 Koehring Co Speed responsive governor operated system for pump control
FR2182286A5 (ja) * 1972-04-25 1973-12-07 Sopelem
JPS5133202B2 (ja) * 1973-09-07 1976-09-18
GB1523588A (en) * 1974-11-18 1978-09-06 Massey Ferguson Services Nv Control systems for variable capacity hydraulic machines
GB1523279A (en) * 1974-11-18 1978-08-31 Massey Ferguson Services Nv Control systems for variable capacity hydraulic machines
DE2534632A1 (de) * 1975-08-02 1977-02-10 Linde Ag Steuerschaltung fuer die steuerung einer verstelleinrichtung
US4073141A (en) * 1977-03-17 1978-02-14 Caterpillar Tractor Co. Fluid control system with priority flow
US4103489A (en) * 1977-04-15 1978-08-01 Deere & Company Total power fluid system
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5133202U (ja) * 1974-09-03 1976-03-11
JPS53100601A (en) * 1977-02-14 1978-09-02 Komatsu Mfg Co Ltd Controlling device for positioning slewing extremities of slewing type construction cars

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988006242A1 (en) * 1987-02-13 1988-08-25 Caterpillar Inc. Control lever with load force feedback
JPH03235819A (ja) * 1990-02-13 1991-10-21 Fusao Yano 倣い運転式パワーシャベル

Also Published As

Publication number Publication date
DE3048210A1 (de) 1981-12-03
US4507057A (en) 1985-03-26
GB2068889B (en) 1983-07-13
FR2473130A1 (fr) 1981-07-10
GB2068889A (en) 1981-08-19
FR2473130B1 (fr) 1986-11-21
JPS6261742B2 (ja) 1987-12-23

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