EP3693614A4 - Work vehicle - Google Patents

Work vehicle Download PDF

Info

Publication number
EP3693614A4
EP3693614A4 EP18864823.2A EP18864823A EP3693614A4 EP 3693614 A4 EP3693614 A4 EP 3693614A4 EP 18864823 A EP18864823 A EP 18864823A EP 3693614 A4 EP3693614 A4 EP 3693614A4
Authority
EP
European Patent Office
Prior art keywords
work vehicle
vehicle
work
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
EP18864823.2A
Other languages
German (de)
French (fr)
Other versions
EP3693614A1 (en
EP3693614B1 (en
Inventor
Hiroshi Matsuyama
Hidehiko KATSUKI
Kazuhiro Aoyama
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.)
Yanmar Power Technology Co Ltd
Original Assignee
Yanmar Power Technology Co 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 Yanmar Power Technology Co Ltd filed Critical Yanmar Power Technology Co Ltd
Publication of EP3693614A1 publication Critical patent/EP3693614A1/en
Publication of EP3693614A4 publication Critical patent/EP3693614A4/en
Application granted granted Critical
Publication of EP3693614B1 publication Critical patent/EP3693614B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • E02F9/22—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
    • E02F9/2292—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
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B2211/20—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
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple 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
    • F15B2211/30—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
    • F15B2211/30—Directional control
    • F15B2211/355—Pilot 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
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/605—Load sensing 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7135—Combinations of output members of different types, e.g. single-acting cylinders with rotary motors
    • 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
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders
    • F15B2211/7142—Multiple output members, e.g. multiple hydraulic motors or cylinders the output members being arranged in multiple groups

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)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
EP18864823.2A 2017-10-05 2018-09-04 Work vehicle Active EP3693614B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017194799A JP6936687B2 (en) 2017-10-05 2017-10-05 Work vehicle
PCT/JP2018/032788 WO2019069612A1 (en) 2017-10-05 2018-09-04 Work vehicle

Publications (3)

Publication Number Publication Date
EP3693614A1 EP3693614A1 (en) 2020-08-12
EP3693614A4 true EP3693614A4 (en) 2021-08-11
EP3693614B1 EP3693614B1 (en) 2023-11-01

Family

ID=65994544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18864823.2A Active EP3693614B1 (en) 2017-10-05 2018-09-04 Work vehicle

Country Status (5)

Country Link
EP (1) EP3693614B1 (en)
JP (1) JP6936687B2 (en)
KR (1) KR102667937B1 (en)
AU (1) AU2018344665A1 (en)
WO (1) WO2019069612A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7431006B2 (en) * 2019-09-27 2024-02-14 ナブテスコ株式会社 hydraulic control circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006082767A (en) * 2004-09-17 2006-03-30 Hitachi Constr Mach Co Ltd Hydraulic driving apparatus of traveling type construction machine
JP2012021311A (en) * 2010-07-14 2012-02-02 Hitachi Constr Mach Co Ltd Hydraulic driving device for construction machine

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2697473B2 (en) * 1992-03-31 1998-01-14 油谷重工株式会社 Construction equipment merging equipment
JPH11303808A (en) * 1998-02-20 1999-11-02 Komatsu Ltd Hydraulic system of hydraulic drive type working vehicle
JP3774149B2 (en) * 2000-01-25 2006-05-10 日立建機株式会社 Hydraulic drive
JP3614121B2 (en) * 2001-08-22 2005-01-26 コベルコ建機株式会社 Hydraulic equipment for construction machinery
JP3931712B2 (en) * 2002-03-22 2007-06-20 コベルコ建機株式会社 Travel control device for work machine
JP2004027706A (en) * 2002-06-27 2004-01-29 Hitachi Constr Mach Co Ltd Hydraulic circuit device for construction machinery
JP3917068B2 (en) * 2002-12-18 2007-05-23 カヤバ工業株式会社 Hydraulic drive device
JP2005299376A (en) * 2004-03-18 2005-10-27 Kobelco Contstruction Machinery Ltd Hydraulic control circuit for hydraulic shovel
JP2006306200A (en) * 2005-04-27 2006-11-09 Shin Caterpillar Mitsubishi Ltd Running drive device of working machine
JP2006329248A (en) * 2005-05-24 2006-12-07 Kobelco Contstruction Machinery Ltd Hydraulic pressure supply device for working machine
JP2006329341A (en) 2005-05-26 2006-12-07 Kobelco Contstruction Machinery Ltd Hydraulic control unit of working machine
JP4949345B2 (en) * 2008-09-25 2012-06-06 住友建機株式会社 Hydraulic pump control device
JP5297136B2 (en) * 2008-10-02 2013-09-25 株式会社アイチコーポレーション Aerial work platform
JP5419572B2 (en) * 2009-07-10 2014-02-19 カヤバ工業株式会社 Control device for hybrid construction machine
JP5369030B2 (en) * 2010-03-18 2013-12-18 ヤンマー株式会社 Hydraulic circuit of work vehicle
JP2011196436A (en) 2010-03-18 2011-10-06 Yanmar Co Ltd Hydraulic circuit for working vehicle
JP5406087B2 (en) * 2010-03-18 2014-02-05 ヤンマー株式会社 Hydraulic circuit of work vehicle
KR20140034808A (en) * 2011-06-09 2014-03-20 볼보 컨스트럭션 이큅먼트 에이비 Hydraulic system for construction machinery
CN105008724B (en) * 2013-05-30 2017-03-08 日立建机株式会社 The fluid pressure drive device of engineering machinery
JP6282523B2 (en) * 2014-05-09 2018-02-21 住友重機械工業株式会社 Work machine
JP6242312B2 (en) * 2014-09-02 2017-12-06 株式会社日立建機ティエラ Construction machine hydraulic system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006082767A (en) * 2004-09-17 2006-03-30 Hitachi Constr Mach Co Ltd Hydraulic driving apparatus of traveling type construction machine
JP2012021311A (en) * 2010-07-14 2012-02-02 Hitachi Constr Mach Co Ltd Hydraulic driving device for construction machine

Also Published As

Publication number Publication date
AU2018344665A1 (en) 2020-04-23
JP6936687B2 (en) 2021-09-22
EP3693614A1 (en) 2020-08-12
JP2019066018A (en) 2019-04-25
KR20200061332A (en) 2020-06-02
EP3693614B1 (en) 2023-11-01
KR102667937B1 (en) 2024-05-21
WO2019069612A1 (en) 2019-04-11

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