SE0102877D0 - Method of apparatus for controlling positioning of an implement of a work machine - Google Patents

Method of apparatus for controlling positioning of an implement of a work machine

Info

Publication number
SE0102877D0
SE0102877D0 SE0102877A SE0102877A SE0102877D0 SE 0102877 D0 SE0102877 D0 SE 0102877D0 SE 0102877 A SE0102877 A SE 0102877A SE 0102877 A SE0102877 A SE 0102877A SE 0102877 D0 SE0102877 D0 SE 0102877D0
Authority
SE
Sweden
Prior art keywords
boom
appliance
attachment
hydraulic
signal
Prior art date
Application number
SE0102877A
Other languages
Swedish (sv)
Other versions
SE520540C2 (en
SE0102877L (en
Inventor
Hans P Dietz
Thomas G Skinner
Original Assignee
Caterpillar Inc
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
Priority claimed from US09/885,254 external-priority patent/US6951067B1/en
Application filed by Caterpillar Inc filed Critical Caterpillar Inc
Publication of SE0102877D0 publication Critical patent/SE0102877D0/en
Publication of SE0102877L publication Critical patent/SE0102877L/en
Publication of SE520540C2 publication Critical patent/SE520540C2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • 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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2033—Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin
    • 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
    • E02F9/2214—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing the shock generated at the stroke end

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a device for controllably positioning of a working appliance of an earth working machine. SOLUTION: The working appliance has a boom and an attachment fitted to the boom, the boom is operated by a hydraulic lift cylinder, and the attachment is operated by a hydraulic tilt cylinder. An appliance position sensor detects the elevating/lowering position of the boom and the turning position of the attachment, and generates each appliance position signal according thereto. A control device to receive the appliance position signal compares the relative position of the boom and the attachment with the predetermined boundary condition, and generates the electric valve signal. A valve assembly receives the electric valve signal, and the flow rate of the hydraulic fluid is fed controllably to each hydraulic cylinder according to the magnitude of the electric valve signal.
SE0102877A 2000-08-31 2001-08-30 Method and apparatus for controlling the setting of a construction machine's working tools SE520540C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22948300P 2000-08-31 2000-08-31
US09/885,254 US6951067B1 (en) 2000-08-31 2000-08-31 Method and apparatus for controlling positioning of an implement of a work machine

Publications (3)

Publication Number Publication Date
SE0102877D0 true SE0102877D0 (en) 2001-08-30
SE0102877L SE0102877L (en) 2002-03-01
SE520540C2 SE520540C2 (en) 2003-07-22

Family

ID=26923338

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0102877A SE520540C2 (en) 2000-08-31 2001-08-30 Method and apparatus for controlling the setting of a construction machine's working tools

Country Status (3)

Country Link
JP (1) JP4495887B2 (en)
DE (1) DE10140814A1 (en)
SE (1) SE520540C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019124951B4 (en) * 2019-09-17 2023-09-28 Danfoss Power Solutions Gmbh & Co. Ohg Method for controlling a tipping bucket loader

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712376A (en) * 1986-10-22 1987-12-15 Caterpillar Inc. Proportional valve control apparatus for fluid systems
JP3597207B2 (en) * 1993-04-21 2004-12-02 ヤンマー農機株式会社 Work machine lifting / lowering control method
JP3562589B2 (en) * 1993-06-07 2004-09-08 株式会社小松製作所 Inching hydraulic control device, construction machine equipped with the same, and method of determining inching hydraulic pressure
US5701793A (en) * 1996-06-24 1997-12-30 Catepillar Inc. Method and apparatus for controlling an implement of a work machine
JPH10121510A (en) * 1996-10-21 1998-05-12 Hitachi Constr Mach Co Ltd Automatic stop controller for front working member
US5953977A (en) * 1997-12-19 1999-09-21 Carnegie Mellon University Simulation modeling of non-linear hydraulic actuator response
DE19956742A1 (en) * 1998-12-15 2000-06-29 Caterpillar Inc Alarm system for use by vehicles to indicate when an object is in the way during a reversing operation

Also Published As

Publication number Publication date
JP2002121761A (en) 2002-04-26
DE10140814A1 (en) 2002-08-08
SE520540C2 (en) 2003-07-22
JP4495887B2 (en) 2010-07-07
SE0102877L (en) 2002-03-01

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