WO2010074507A3 - 건설기계의 유압펌프 제어장치 - Google Patents

건설기계의 유압펌프 제어장치 Download PDF

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Publication number
WO2010074507A3
WO2010074507A3 PCT/KR2009/007721 KR2009007721W WO2010074507A3 WO 2010074507 A3 WO2010074507 A3 WO 2010074507A3 KR 2009007721 W KR2009007721 W KR 2009007721W WO 2010074507 A3 WO2010074507 A3 WO 2010074507A3
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic pump
signal pressure
construction machine
control valve
fluid discharged
Prior art date
Application number
PCT/KR2009/007721
Other languages
English (en)
French (fr)
Other versions
WO2010074507A2 (ko
Inventor
조영식
장달식
Original Assignee
두산인프라코어 주식회사
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 두산인프라코어 주식회사 filed Critical 두산인프라코어 주식회사
Priority to EP09835273.5A priority Critical patent/EP2381115B1/en
Priority to KR1020117017074A priority patent/KR101683317B1/ko
Priority to US13/141,583 priority patent/US8707690B2/en
Priority to CN200980152380.8A priority patent/CN102265041B/zh
Publication of WO2010074507A2 publication Critical patent/WO2010074507A2/ko
Publication of WO2010074507A3 publication Critical patent/WO2010074507A3/ko

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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
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2282—Systems using center bypass type changeover valves
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2285—Pilot-operated systems
    • 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • 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
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • F04B1/063—Control by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. between series and parallel flow
    • 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
    • F04B49/12—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 by varying the length of stroke of the working members
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/024—Systems essentially incorporating special features for controlling the speed or actuating force of an output member by means of differential connection of the servomotor lines, e.g. regenerative circuits
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
    • 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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/004—Fluid pressure supply failure
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/082—Servomotor systems incorporating electrically operated control means with different modes
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • 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
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • 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
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • 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
    • F15B2211/65—Methods of control of the load sensing pressure
    • F15B2211/652—Methods of control of the load sensing pressure the load sensing pressure being different from the load pressure
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/85—Control during special operating conditions

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)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

본 발명에 따른 건설기계의 유압펌프 제어장치는 사판각이 조절되어 토출 유량이 제어되는 유압펌프(10)와, 보조펌프(14)와, 상기 유압펌프(10)로부터 토출되는 유체의 흐름 방향을 제어하여 액추에이터(13)에 선택적으로 공급하는 컨트롤 밸브(11)와, 상기 컨트롤 밸브(11)의 센터 바이패스 라인(17)과 탱크(T) 사이에 상호 병렬로 연결된 오리피스(15) 및 릴리프 밸브(16)와, 상기 컨트롤 밸브(11)의 센터 바이패스 라인(17)을 통과한 유체와 상기 보조펌프(14)로부터 토출된 유체를 전달받아 이 중 어느 하나의 압력을 신호압으로 선택하는 신호압 선택유닛(20)(120)(220)과, 상기 신호압 선택유닛(20)(120)(220)로부터 선택된 신호압을 전달받아 상기 유압펌프(10)의 사판각을 조절하는 레귤레이터(30)를 포함하며, 상기 신호압 선택유닛(20)은 건설기계의 아이들 상태에서 상기 보조펌프(14)로부터 토출된 유체의 압력을 신호압으로 선택하여 상기 레귤레이터(30)에 전달하는 것을 특징으로 한다.
PCT/KR2009/007721 2008-12-24 2009-12-23 건설기계의 유압펌프 제어장치 WO2010074507A2 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09835273.5A EP2381115B1 (en) 2008-12-24 2009-12-23 Hydraulic pump controller for construction machine
KR1020117017074A KR101683317B1 (ko) 2008-12-24 2009-12-23 중장비의 유압 펌프 제어 장치
US13/141,583 US8707690B2 (en) 2008-12-24 2009-12-23 Hydraulic pump controller for construction machine
CN200980152380.8A CN102265041B (zh) 2008-12-24 2009-12-23 工程机械的液压泵控制装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20080133995 2008-12-24
KR20080133721 2008-12-24
KR10-2008-0133721 2008-12-24
KR10-2008-0133995 2008-12-24

Publications (2)

Publication Number Publication Date
WO2010074507A2 WO2010074507A2 (ko) 2010-07-01
WO2010074507A3 true WO2010074507A3 (ko) 2010-09-30

Family

ID=42288301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/007721 WO2010074507A2 (ko) 2008-12-24 2009-12-23 건설기계의 유압펌프 제어장치

Country Status (5)

Country Link
US (1) US8707690B2 (ko)
EP (1) EP2381115B1 (ko)
KR (1) KR101683317B1 (ko)
CN (1) CN102265041B (ko)
WO (1) WO2010074507A2 (ko)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103649554B (zh) * 2011-03-15 2016-05-04 胡斯可国际股份有限公司 基于优先权将流体从多个泵分配至多个液压功能的系统
CN102285143B (zh) * 2011-06-16 2014-07-02 上海涌憬液压机械有限公司 液压机变量柱塞泵系统
WO2013063749A1 (zh) * 2011-10-31 2013-05-10 中联重科股份有限公司 液压控制回路
CN102374203B (zh) * 2011-10-31 2013-03-13 中联重科股份有限公司 液压控制回路
KR20140109873A (ko) * 2011-12-09 2014-09-16 볼보 컨스트럭션 이큅먼트 에이비 건설기계의 유압시스템
US8899034B2 (en) * 2011-12-22 2014-12-02 Husco International, Inc. Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow
KR101975062B1 (ko) * 2011-12-27 2019-05-03 두산인프라코어 주식회사 건설기계의 유압시스템
CA2879202C (en) * 2012-07-27 2017-06-06 Volvo Construction Equipment Ab Hydraulic system for construction machine
US20140060018A1 (en) * 2012-08-30 2014-03-06 Pengfei Ma Hydraulic control system
JP6147564B2 (ja) * 2013-05-14 2017-06-14 住友重機械工業株式会社 建設機械用油圧システム
DE102015218832A1 (de) * 2015-09-30 2017-03-30 Robert Bosch Gmbh Pumpen-Regler-Kombination mit Leistungsbegrenzung
ITUB20160596A1 (it) * 2016-02-09 2017-08-09 Walvoil Spa Valvola oleodinamica serie e parallelo con elemento logico di commutazione
JP7003135B2 (ja) * 2017-07-27 2022-01-20 住友重機械工業株式会社 ショベル
JP6882214B2 (ja) * 2018-02-09 2021-06-02 株式会社日立建機ティエラ 建設機械
CN109882262A (zh) * 2019-03-16 2019-06-14 连云港天明装备有限公司 矿用辅助运输车辆发动机机油保护装置
CN112343520B (zh) * 2020-09-28 2022-06-28 四川宏华石油设备有限公司 一种井下离合装置

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JPH02291436A (ja) * 1989-01-18 1990-12-03 Hitachi Constr Mach Co Ltd 油圧建設機械の駆動制御装置
JPH08200307A (ja) * 1995-01-23 1996-08-06 Nabco Ltd 油圧回路
KR0152300B1 (ko) * 1993-07-02 1998-10-15 김연수 유압펌프의 토출유량 제어방법
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JP2008039063A (ja) * 2006-08-07 2008-02-21 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 建設機械の油圧制御回路

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Publication number Priority date Publication date Assignee Title
JPH02291436A (ja) * 1989-01-18 1990-12-03 Hitachi Constr Mach Co Ltd 油圧建設機械の駆動制御装置
KR0152300B1 (ko) * 1993-07-02 1998-10-15 김연수 유압펌프의 토출유량 제어방법
JPH08200307A (ja) * 1995-01-23 1996-08-06 Nabco Ltd 油圧回路
KR100281008B1 (ko) * 1997-09-05 2001-02-01 세구치 류이치 유압 작업기의 유압 회로장치
JP2008039063A (ja) * 2006-08-07 2008-02-21 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd 建設機械の油圧制御回路

Also Published As

Publication number Publication date
EP2381115B1 (en) 2016-10-05
EP2381115A2 (en) 2011-10-26
US20110262287A1 (en) 2011-10-27
US8707690B2 (en) 2014-04-29
KR101683317B1 (ko) 2016-12-07
KR20110100289A (ko) 2011-09-09
WO2010074507A2 (ko) 2010-07-01
CN102265041A (zh) 2011-11-30
CN102265041B (zh) 2014-02-12
EP2381115A4 (en) 2014-04-30

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