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WO2008108013A1 - 建設機械における油圧制御回路 - Google Patents

建設機械における油圧制御回路 Download PDF

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Publication number
WO2008108013A1
WO2008108013A1 PCT/JP2007/064136 JP2007064136W WO2008108013A1 WO 2008108013 A1 WO2008108013 A1 WO 2008108013A1 JP 2007064136 W JP2007064136 W JP 2007064136W WO 2008108013 A1 WO2008108013 A1 WO 2008108013A1
Authority
WO
WIPO (PCT)
Prior art keywords
control
recovery
hydraulic
engine
engine speed
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.)
Ceased
Application number
PCT/JP2007/064136
Other languages
English (en)
French (fr)
Inventor
Yoshiyuki Shimada
Hiroyasu Nishikawa
Masaru Mishima
Yutaka Yokoyama
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.)
Caterpillar Japan Ltd
Caterpillar Mitsubishi Ltd
Original Assignee
Caterpillar Japan Ltd
Caterpillar Mitsubishi Ltd
Shin Caterpillar Mitsubishi 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 Caterpillar Japan Ltd, Caterpillar Mitsubishi Ltd, Shin Caterpillar Mitsubishi Ltd filed Critical Caterpillar Japan Ltd
Priority to EP07790891.1A priority Critical patent/EP2128453B1/en
Priority to US12/449,824 priority patent/US8539762B2/en
Priority to CN2007800506473A priority patent/CN101595313B/zh
Publication of WO2008108013A1 publication Critical patent/WO2008108013A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves 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
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • 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
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B21/14—Energy-recuperation 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
    • F15B2211/20—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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid 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
    • F15B2211/60—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
    • F15B2211/6316—Electronic controllers using input signals representing a pressure the pressure being a pilot 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/633—Electronic controllers using input signals representing a state of the prime mover, e.g. torque or rotational speed
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F15B2211/761—Control of a negative load, i.e. of a load generating hydraulic energy
    • 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
    • F15B2211/88—Control measures for saving energy

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

　重量物を上下動させる油圧シリンダと、エンジンを動力源として駆動し、油圧シリンダの油圧供給源となる油圧ポンプと、重量物の下動時に重量保持側油室からの排出油を反重量保持側油室に供給する再生用油路と、エンジン回転数設定具とを備えた油圧制御回路において、燃費低減を図ると共に、重量物の下動速度を、エンジン回転数設定具の設定値に対応できるようにする。 　再生用油路Ｃに、制御装置１８からの制御指令に基づいて開度量調整される再生用制御弁１３を配すると共に、前記制御装置１３において、 ブーム下動時にエンジンＥの回転数を低下制御用エンジン回転数以下に低下せしめるエンジン回転数低下制御と、アクセルダイヤル２０により設定された設定目標回転数の高低に対応して再生用制御弁１３の開度量を増減調整する再生量調整制御とを行うように構成した。
PCT/JP2007/064136 2007-03-06 2007-07-18 建設機械における油圧制御回路 Ceased WO2008108013A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07790891.1A EP2128453B1 (en) 2007-03-06 2007-07-18 Hydraulic control circuit for construction machine
US12/449,824 US8539762B2 (en) 2007-03-06 2007-07-18 Hydraulic control circuit for construction machine
CN2007800506473A CN101595313B (zh) 2007-03-06 2007-07-18 建设机械中的油压控制回路

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-055319 2007-03-06
JP2007055319A JP5013452B2 (ja) 2007-03-06 2007-03-06 建設機械における油圧制御回路

Publications (1)

Publication Number Publication Date
WO2008108013A1 true WO2008108013A1 (ja) 2008-09-12

Family

ID=39737915

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/064136 Ceased WO2008108013A1 (ja) 2007-03-06 2007-07-18 建設機械における油圧制御回路

Country Status (5)

Country Link
US (1) US8539762B2 (ja)
EP (1) EP2128453B1 (ja)
JP (1) JP5013452B2 (ja)
CN (1) CN101595313B (ja)
WO (1) WO2008108013A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120304630A1 (en) * 2010-02-26 2012-12-06 Kayaba Industry Co., Ltd Control system for construction machine
CN104405707A (zh) * 2014-10-21 2015-03-11 恒天创丰重工有限公司 一种多泵液压系统及其功率控制方法
WO2019225022A1 (ja) * 2018-05-21 2019-11-28 Smc株式会社 流体圧シリンダの駆動方法及び駆動装置

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010210072A (ja) * 2009-03-12 2010-09-24 Sumitomo (Shi) Construction Machinery Co Ltd 作業機械の油圧制御システム
JP2012052583A (ja) * 2010-08-31 2012-03-15 Hitachi Constr Mach Co Ltd 油圧作業機
WO2013015467A1 (ko) * 2011-07-26 2013-01-31 볼보 컨스트럭션 이큅먼트 에이비 건설기계용 유압시스템
DE102012001562A1 (de) * 2012-01-27 2013-08-01 Robert Bosch Gmbh Ventilanordnung für eine mobile Arbeitsmaschine
EP2947332B1 (en) * 2013-01-17 2018-10-31 Hitachi Construction Machinery Co., Ltd. Device for recovering pressurized oil energy from work machine
WO2014189062A1 (ja) * 2013-05-24 2014-11-27 日立建機株式会社 建設機械
CN103758175A (zh) * 2013-12-28 2014-04-30 柳州市金福机械制造有限公司 滑移式装载机变速控制装置
CN103883409B (zh) * 2014-03-14 2017-02-15 潍柴动力股份有限公司 一种双执行器切换控制方法及装置
JP6285787B2 (ja) * 2014-04-14 2018-02-28 日立建機株式会社 油圧駆動装置
JP2017015118A (ja) * 2015-06-29 2017-01-19 Ｋｙｂ株式会社 建設機械の制御システム
JP2018044366A (ja) * 2016-09-15 2018-03-22 コベルコ建機株式会社 作業機械の挟み処理装置及びこれを備えた作業機械
JP6646007B2 (ja) * 2017-03-31 2020-02-14 日立建機株式会社 建設機械の油圧制御装置
EP4012113A4 (en) * 2020-03-30 2023-08-16 Hitachi Construction Machinery Co., Ltd. WORK MACHINERY
JP7523259B2 (ja) * 2020-06-19 2024-07-26 川崎重工業株式会社 液圧駆動システム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09132927A (ja) 1995-11-08 1997-05-20 Komatsu Ltd 油圧ショベルの油圧回路
JP2000110803A (ja) * 1998-10-05 2000-04-18 Hitachi Constr Mach Co Ltd 油圧再生装置
JP2004150305A (ja) * 2002-10-29 2004-05-27 Komatsu Ltd 作業機械のエンジン回転数制御装置
JP2005256895A (ja) 2004-03-10 2005-09-22 Hitachi Constr Mach Co Ltd 作業用油圧シリンダの駆動制御装置および油圧ショベル
JP2006070970A (ja) * 2004-09-01 2006-03-16 Shin Caterpillar Mitsubishi Ltd 建設機械の油圧制御回路
JP2006118685A (ja) * 2004-10-25 2006-05-11 Shin Caterpillar Mitsubishi Ltd 作業機械の流体圧回路

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013959A1 (fr) * 1992-12-04 1994-06-23 Hitachi Construction Machinery Co., Ltd. Regenerateur hydraulique
JP2992434B2 (ja) * 1993-12-02 1999-12-20 日立建機株式会社 建設機械の油圧制御装置
JP3797665B2 (ja) * 2002-08-19 2006-07-19 住友建機製造株式会社 建設機械の省エネ回路
WO2006132010A1 (ja) * 2005-06-06 2006-12-14 Shin Caterpillar Mitsubishi Ltd. 流体圧回路、エネルギ回生装置、作業機械の流体圧回路

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09132927A (ja) 1995-11-08 1997-05-20 Komatsu Ltd 油圧ショベルの油圧回路
JP2000110803A (ja) * 1998-10-05 2000-04-18 Hitachi Constr Mach Co Ltd 油圧再生装置
JP2004150305A (ja) * 2002-10-29 2004-05-27 Komatsu Ltd 作業機械のエンジン回転数制御装置
JP2005256895A (ja) 2004-03-10 2005-09-22 Hitachi Constr Mach Co Ltd 作業用油圧シリンダの駆動制御装置および油圧ショベル
JP2006070970A (ja) * 2004-09-01 2006-03-16 Shin Caterpillar Mitsubishi Ltd 建設機械の油圧制御回路
JP2006118685A (ja) * 2004-10-25 2006-05-11 Shin Caterpillar Mitsubishi Ltd 作業機械の流体圧回路

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2128453A4 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120304630A1 (en) * 2010-02-26 2012-12-06 Kayaba Industry Co., Ltd Control system for construction machine
US9228323B2 (en) * 2010-02-26 2016-01-05 Kayaba Industry Co., Ltd. Control system for construction machine
CN104405707A (zh) * 2014-10-21 2015-03-11 恒天创丰重工有限公司 一种多泵液压系统及其功率控制方法
WO2019225022A1 (ja) * 2018-05-21 2019-11-28 Smc株式会社 流体圧シリンダの駆動方法及び駆動装置
JP2019203513A (ja) * 2018-05-21 2019-11-28 Smc株式会社 流体圧シリンダの駆動方法及び駆動装置
US11300143B2 (en) 2018-05-21 2022-04-12 Smc Corporation Drive method and drive device for fluid pressure cylinder

Also Published As

Publication number Publication date
JP5013452B2 (ja) 2012-08-29
US20100089045A1 (en) 2010-04-15
JP2008215528A (ja) 2008-09-18
US8539762B2 (en) 2013-09-24
EP2128453A1 (en) 2009-12-02
EP2128453B1 (en) 2013-06-05
EP2128453A4 (en) 2011-10-05
CN101595313A (zh) 2009-12-02
CN101595313B (zh) 2012-05-23

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