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DE602005024754D1 - Control system for a loader. - Google Patents

Control system for a loader.

Info

Publication number
DE602005024754D1
DE602005024754D1 DE602005024754T DE602005024754T DE602005024754D1 DE 602005024754 D1 DE602005024754 D1 DE 602005024754D1 DE 602005024754 T DE602005024754 T DE 602005024754T DE 602005024754 T DE602005024754 T DE 602005024754T DE 602005024754 D1 DE602005024754 D1 DE 602005024754D1
Authority
DE
Germany
Prior art keywords
pressure
bucket
lift cylinder
lift
lift cylinders
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.)
Active
Application number
DE602005024754T
Other languages
German (de)
Inventor
Bernard Hublart
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.)
AGCO SA
Original Assignee
AGCO SA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35456029&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE602005024754(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB0421497A external-priority patent/GB0421497D0/en
Priority claimed from GB0421499A external-priority patent/GB0421499D0/en
Priority claimed from GB0421495A external-priority patent/GB0421495D0/en
Application filed by AGCO SA filed Critical AGCO SA
Publication of DE602005024754D1 publication Critical patent/DE602005024754D1/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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • E02F9/2221—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Massaging Devices (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Centrifugal Separators (AREA)

Abstract

A damping system for an implement support system in which a bucket 10 is mounted on a pair of support arms (12) which are pivoted relative to a tractor by a pair of hydraulic lift cylinders (15) controlled by electrically actuated hydraulic valve means (16) in response to commands (22) from a vehicle operator and/or an electrical control unit (21). The damper system includes a pressure level control loop having a pressure sensing means (15a) for sensing the pressure in the lift cylinders (15) due to a load currently carried in the bucket (10), storing means (21) for storing this sensed lift cylinder pressure as a reference value, the pressure sensing means also monitoring the lift cylinder pressure as the load is transported, and control means (21) for actively adjusting the pressure in the lift cylinders using the electrically actuated hydraulic valve means (16) if said pressure varies outside a predetermined deadband (r,s) either side of the reference value (P) in order to return the lift cylinder pressure to within said deadband and to maintain the support arm carrying position (Q). There is also disclosed a particularly useful joystick (22) control arrangement and a visual display (32) of current bucket orientation etc.
DE602005024754T 2004-09-28 2005-09-23 Control system for a loader. Active DE602005024754D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0421497A GB0421497D0 (en) 2004-09-28 2004-09-28 Implement damping system
GB0421499A GB0421499D0 (en) 2004-09-28 2004-09-28 Loader control system
GB0421495A GB0421495D0 (en) 2004-09-28 2004-09-28 Loader controls

Publications (1)

Publication Number Publication Date
DE602005024754D1 true DE602005024754D1 (en) 2010-12-30

Family

ID=35456029

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005024754T Active DE602005024754D1 (en) 2004-09-28 2005-09-23 Control system for a loader.

Country Status (3)

Country Link
EP (1) EP1640512B2 (en)
AT (1) ATE488649T1 (en)
DE (1) DE602005024754D1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123932B (en) 2006-08-16 2013-12-31 John Deere Forestry Oy Control of a boom structure and one to the same with a hinge attached tool
GB2445165A (en) * 2006-12-29 2008-07-02 Agco Sa Vibration damping for load carrier
ATE487007T1 (en) * 2007-08-20 2010-11-15 Jcb Compact Products Ltd METHOD AND SYSTEM FOR CONTROLLING A WORKING MACHINE.
US7729835B2 (en) 2007-08-21 2010-06-01 Jcb Compact Products Limited Method of controlling a working machine
ITBO20100659A1 (en) * 2010-11-03 2012-05-04 Ferri Srl SAFETY DEVICE FOR OPERATING MACHINE
FR2967011B1 (en) * 2010-11-10 2013-11-22 Kuhn Audureau Sa MOWER-BRUSHCUTTER WITH HYDRAULIC CYLINDERS WITH ELECTRONIC MANAGEMENT
US20130229272A1 (en) * 2012-03-05 2013-09-05 Caterpillar Inc. Manual control device and method
US8862340B2 (en) 2012-12-20 2014-10-14 Caterpillar Forest Products, Inc. Linkage end effecter tracking mechanism for slopes
US9803335B1 (en) 2016-05-17 2017-10-31 Deere & Company Integrated CB microphone control
SE1651329A1 (en) 2016-10-10 2018-04-11 Loe Ab An implement and a method for obtaining information related to said implement
US10863671B2 (en) 2017-12-01 2020-12-15 Agco Corporation Unloading conveyor swing control system
JP7201486B2 (en) * 2019-03-13 2023-01-10 日立建機株式会社 working machine
GB201909474D0 (en) * 2019-07-01 2019-08-14 Agco Int Gmbh Implement hitch control system
CN112709283B (en) * 2020-12-29 2022-01-07 徐工集团工程机械股份有限公司科技分公司 Hydraulic control system and control method for pure electric loader

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123212A (en) * 1984-07-11 1986-01-31 Hitachi Ltd Controller of multi-joint structure machine
EP0190703B1 (en) * 1985-02-04 1988-05-25 Hitachi Construction Machinery Co., Ltd. Control system for hydraulic circuit
JP3147188B2 (en) * 1991-12-13 2001-03-19 株式会社小松製作所 Work machine vibration suppression device
JP2966642B2 (en) * 1992-05-21 1999-10-25 日立建機株式会社 Vibration suppression control device for working equipment in hydraulic working machine
JPH07234727A (en) * 1994-02-21 1995-09-05 Komatsu Ltd Device and method for suppressing vibration of work machine
US5551518A (en) * 1994-09-28 1996-09-03 Caterpillar Inc. Tilt rate compensation implement system and method
KR100231757B1 (en) * 1996-02-21 1999-11-15 사쿠마 하지메 Method and device for controlling attachment of construction machine
DE69732177D1 (en) * 1996-02-28 2005-02-10 Komatsu Mfg Co Ltd CONTROL DEVICE OF A HYDRAULIC DRIVE MACHINE
US5813226A (en) * 1997-09-15 1998-09-29 Caterpillar Inc. Control scheme for pressure relief
JPH11343095A (en) * 1998-06-04 1999-12-14 Kobe Steel Ltd Boom type working machine
JP4037978B2 (en) * 1999-01-14 2008-01-23 ヤンマー農機株式会社 Front loader
US6550562B2 (en) * 2000-12-08 2003-04-22 Clark Equipment Company Hand grip with microprocessor for controlling a power machine
FR2827320B1 (en) * 2001-05-15 2003-10-10 Faucheux Ind Soc PROGRAMMABLE CHARGER DEVICE
JP2003184133A (en) * 2001-12-20 2003-07-03 Hitachi Constr Mach Co Ltd Vibration suppressing equipment for hydraulic work machine
DE10163066A1 (en) * 2001-12-21 2003-07-03 Bosch Rexroth Ag Active vibration damping of mobile working machine involves smoothing load sensor output signal in low pass filter whose output is fed to position regulator as actual position value
JP2003194150A (en) * 2001-12-28 2003-07-09 Hitachi Constr Mach Co Ltd Vibration suppression device for hydraulic working machine

Also Published As

Publication number Publication date
EP1640512B1 (en) 2010-11-17
EP1640512A2 (en) 2006-03-29
ATE488649T1 (en) 2010-12-15
EP1640512B2 (en) 2015-02-25
EP1640512A3 (en) 2007-05-30

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