EP2743517A4 - Hydraulic control system for construction machinery - Google Patents

Hydraulic control system for construction machinery

Info

Publication number
EP2743517A4
EP2743517A4 EP20110870643 EP11870643A EP2743517A4 EP 2743517 A4 EP2743517 A4 EP 2743517A4 EP 20110870643 EP20110870643 EP 20110870643 EP 11870643 A EP11870643 A EP 11870643A EP 2743517 A4 EP2743517 A4 EP 2743517A4
Authority
EP
European Patent Office
Prior art keywords
control system
hydraulic control
construction machinery
machinery
construction
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.)
Withdrawn
Application number
EP20110870643
Other languages
German (de)
French (fr)
Other versions
EP2743517A1 (en
Inventor
Ok-Jin Suk
Chun-Han Lee
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.)
Volvo Construction Equipment AB
Original Assignee
Volvo Construction Equipment AB
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 Volvo Construction Equipment AB filed Critical Volvo Construction Equipment AB
Publication of EP2743517A1 publication Critical patent/EP2743517A1/en
Publication of EP2743517A4 publication Critical patent/EP2743517A4/en
Withdrawn legal-status Critical Current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
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance 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
    • E02F9/2004—Control mechanisms, e.g. control levers
    • 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
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • 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
    • 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
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more 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
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • 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
    • F15B2211/70—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85978—With pump
    • Y10T137/85986—Pumped fluid control

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)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
EP20110870643 2011-08-09 2011-08-09 Hydraulic control system for construction machinery Withdrawn EP2743517A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2011/005790 WO2013022131A1 (en) 2011-08-09 2011-08-09 Hydraulic control system for construction machinery

Publications (2)

Publication Number Publication Date
EP2743517A1 EP2743517A1 (en) 2014-06-18
EP2743517A4 true EP2743517A4 (en) 2015-04-08

Family

ID=47668625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110870643 Withdrawn EP2743517A4 (en) 2011-08-09 2011-08-09 Hydraulic control system for construction machinery

Country Status (6)

Country Link
US (1) US20140158235A1 (en)
EP (1) EP2743517A4 (en)
JP (1) JP5771332B2 (en)
KR (1) KR20140050030A (en)
CN (1) CN103717914B (en)
WO (1) WO2013022131A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013103157A2 (en) 2012-01-02 2013-07-11 볼보 컨스트럭션 이큅먼트 에이비 Method for controlling operation of dump for constuction machinery
KR101770732B1 (en) 2012-06-04 2017-08-23 볼보 컨스트럭션 이큅먼트 에이비 Driving control method for construction machine
KR101741703B1 (en) 2013-01-24 2017-05-30 볼보 컨스트럭션 이큅먼트 에이비 Device and method for controlling flow rate in construction machinery
KR20150005752A (en) * 2013-07-04 2015-01-15 현대중공업 주식회사 Hydraulic Circuit Providing Float Function
JP5975073B2 (en) * 2014-07-30 2016-08-23 コベルコ建機株式会社 Construction machinery
GB2547959B (en) 2016-01-08 2020-07-08 Cummins Inc Communication interface for start-stop systems and methods
US11408145B2 (en) 2016-09-21 2022-08-09 Komatsu Ltd. Work vehicle and hydraulic control method
EP3724409A4 (en) * 2017-12-14 2022-01-12 Volvo Construction Equipment AB Hydraulic machine
CN110861225A (en) * 2019-11-26 2020-03-06 中铁十一局集团第二工程有限公司 Cutting method of tunnel lining
CN111501893A (en) * 2020-04-30 2020-08-07 徐州徐工挖掘机械有限公司 Negative flow hydraulic system and excavator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05288203A (en) * 1992-04-10 1993-11-02 Komatsu Ltd Pressure relieving device in oil hydraulic circuit having pressure compensating valve
JPH09119148A (en) * 1995-10-24 1997-05-06 Yutani Heavy Ind Ltd Hydraulic circuit of construction machine
GB2441258A (en) * 2005-05-18 2008-02-27 Komatsu Mfg Co Ltd Hydraulic controller of construction machinery

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2551543B2 (en) * 1988-06-17 1996-11-06 油谷重工株式会社 Hydraulic circuit of hydraulic excavator
JP3183815B2 (en) * 1995-12-27 2001-07-09 日立建機株式会社 Hydraulic circuit of excavator
JP3943779B2 (en) * 1999-01-19 2007-07-11 日立建機株式会社 Hydraulic drive system for civil engineering and construction machinery
JP2001295803A (en) * 2000-04-10 2001-10-26 Hitachi Constr Mach Co Ltd Hydraulic driving device for work machine
JP3606177B2 (en) * 2000-07-25 2005-01-05 住友建機製造株式会社 Hydraulic excavator control circuit
JP4213473B2 (en) * 2001-04-17 2009-01-21 キャタピラージャパン株式会社 Fluid pressure circuit
JP4209705B2 (en) * 2003-03-17 2009-01-14 日立建機株式会社 Working machine hydraulic circuit
JP4062160B2 (en) * 2003-04-23 2008-03-19 コベルコ建機株式会社 Hydraulic valve device
JP2007100779A (en) * 2005-10-03 2007-04-19 Kayaba Ind Co Ltd Hydraulic pressure control device
JP4948046B2 (en) * 2006-06-06 2012-06-06 カヤバ工業株式会社 Power equipment for construction machinery
CN101929177A (en) * 2008-07-02 2010-12-29 沃尔沃建造设备控股（瑞典）有限公司 Be used for hydraulic control system of excavator
EP2157245B1 (en) * 2008-08-21 2021-03-17 Volvo Construction Equipment AB Hydraulic system for construction equipment
KR100961433B1 (en) * 2008-10-13 2010-06-09 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 hydraulic system of construction equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05288203A (en) * 1992-04-10 1993-11-02 Komatsu Ltd Pressure relieving device in oil hydraulic circuit having pressure compensating valve
JPH09119148A (en) * 1995-10-24 1997-05-06 Yutani Heavy Ind Ltd Hydraulic circuit of construction machine
GB2441258A (en) * 2005-05-18 2008-02-27 Komatsu Mfg Co Ltd Hydraulic controller of construction machinery

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013022131A1 *

Also Published As

Publication number Publication date
US20140158235A1 (en) 2014-06-12
JP5771332B2 (en) 2015-08-26
CN103717914A (en) 2014-04-09
JP2014522952A (en) 2014-09-08
EP2743517A1 (en) 2014-06-18
WO2013022131A1 (en) 2013-02-14
CN103717914B (en) 2016-05-11
KR20140050030A (en) 2014-04-28

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20150306

RIC1 Information provided on ipc code assigned before grant

Ipc: F15B 11/17 20060101ALI20150302BHEP

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Effective date: 20160930