FR2372468A1 - Appareillage de commande d'une transmission hydrostatique a double circuit - Google Patents

Appareillage de commande d'une transmission hydrostatique a double circuit

Info

Publication number
FR2372468A1
FR2372468A1 FR7735205A FR7735205A FR2372468A1 FR 2372468 A1 FR2372468 A1 FR 2372468A1 FR 7735205 A FR7735205 A FR 7735205A FR 7735205 A FR7735205 A FR 7735205A FR 2372468 A1 FR2372468 A1 FR 2372468A1
Authority
FR
France
Prior art keywords
vehicle
speed
transmission control
hydrostatic transmission
transmissions
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
FR7735205A
Other languages
English (en)
Other versions
FR2372468B1 (fr
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.)
Sundstrand Corp
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of FR2372468A1 publication Critical patent/FR2372468A1/fr
Application granted granted Critical
Publication of FR2372468B1 publication Critical patent/FR2372468B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • B62D11/14—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
    • B62D11/18—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
    • B62D11/183—Control systems therefor
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20012—Multiple controlled elements
    • Y10T74/20201—Control moves in two planes

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

Appareillage de commande de transmission hydrostatique à double circuit. Deux transmissions hydrostatiques comprennent chacune un élément moteur à course variable qui est soumis à une pression de commande qui détermine sa course. Un distributeur à proportionnalité règle cette pression de commande de façon à déterminer le sens de marche et la vitesse à laquelle le véhicule se déplace par une vitesse uniforme des deux transmissions. Des distributeurs de direction modifient la vitesse d'au moins l'une des transmissions de manière à diriger le véhicule. Un élément de commande est relié aux distributeurs par des tringlages de façon que lorsqu'il se déplace autour d'un premier axe, il détermine la vitesse et le sens de marche du véhicule et que, lorsqu'il se déplace dans l'un ou l'autre sens autour d'un second axe, il dirige ledit véhicule. Application à un tracteur à chenilles.
FR7735205A 1976-11-24 1977-11-23 Appareillage de commande d'une transmission hydrostatique a double circuit Granted FR2372468A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/744,937 US4085812A (en) 1976-11-24 1976-11-24 Actuator system for dual path transmission

Publications (2)

Publication Number Publication Date
FR2372468A1 true FR2372468A1 (fr) 1978-06-23
FR2372468B1 FR2372468B1 (fr) 1984-08-31

Family

ID=24994544

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7735205A Granted FR2372468A1 (fr) 1976-11-24 1977-11-23 Appareillage de commande d'une transmission hydrostatique a double circuit

Country Status (6)

Country Link
US (1) US4085812A (fr)
JP (1) JPS5369328A (fr)
DE (1) DE2745561A1 (fr)
FR (1) FR2372468A1 (fr)
GB (1) GB1584680A (fr)
IT (1) IT1090347B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238972A (en) * 1977-09-29 1980-12-16 Teleflex Morse Limited Remote control mechanisms
US4235297A (en) * 1979-03-22 1980-11-25 Hps Company, Inc. Two-man utility vehicle
IT1127989B (it) * 1980-01-29 1986-05-28 Fiat Allis Macch Movi Dispositivo di azionamento a monoleva per una macchina per movimento terra o simili
US4363427A (en) * 1980-06-06 1982-12-14 Crafco, Inc. Asphalt dispenser vehicle
US4700794A (en) * 1986-07-14 1987-10-20 Caterpillar Inc. Vehicle steering apparatus
US5131483A (en) * 1991-01-28 1992-07-21 Shivvers, Inc. Single lever control
JPH05169500A (ja) * 1991-12-25 1993-07-09 Japan Steel Works Ltd:The 射出成形機のスクリュトルク切換装置及び方法
US5488818A (en) * 1993-06-28 1996-02-06 The Actava Group Inc. Lawn mower having improved trim feature
DE69429833T2 (de) * 1993-09-03 2002-09-12 Yanmar Agricult Equip Arbeitsfahrzeug
US6257357B1 (en) * 1999-03-26 2001-07-10 Deere & Company Steering device for drive and steer transmission
KR100428166B1 (ko) * 2001-11-28 2004-04-28 현대자동차주식회사 차량의 변속조작기구
JP2008025161A (ja) * 2006-07-19 2008-02-07 Kubota Corp 作業車
JP2008082128A (ja) * 2006-09-29 2008-04-10 Kubota Corp ローダ作業機
US7849941B2 (en) * 2006-10-10 2010-12-14 Clark Equipment Company Universal linkage assembly for a power machine
US7795752B2 (en) 2007-11-30 2010-09-14 Caterpillar Inc System and method for integrated power control
US8793002B2 (en) 2008-06-20 2014-07-29 Caterpillar Inc. Torque load control system and method
US20100120578A1 (en) * 2008-11-07 2010-05-13 Hichem Bouguerra Drive and steering control system for an endless track vehicle
US8058829B2 (en) * 2008-11-25 2011-11-15 Caterpillar Inc. Machine control system and method
US8540048B2 (en) 2011-12-28 2013-09-24 Caterpillar Inc. System and method for controlling transmission based on variable pressure limit
US10696327B2 (en) * 2018-10-26 2020-06-30 Danfoss Power Solutions Inc. Electronic pressure limiting for dual path systems

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611827A (en) * 1949-12-03 1952-09-23 Kellogg Switchboard & Supply Crossbar switch
US3323607A (en) * 1965-03-12 1967-06-06 Komatsu Mfg Co Ltd Combined speed control and steering device for vehicles
US3540220A (en) * 1968-03-26 1970-11-17 Eaton Yale & Towne Hydrostatic transmission control system
US3677362A (en) * 1970-09-02 1972-07-18 Int Harvester Co Hydrostatic transmission hydraulic control and single lever for operating same
US3799362A (en) * 1973-01-22 1974-03-26 Standard Mfg Co Six wheel material handling vehicle
US3885988A (en) * 1973-10-04 1975-05-27 Lorenz Bohle Method and apparatus for filling adjacent insulating tubes forming the positive plate of a lead-acid storage battery
US3946560A (en) * 1974-02-13 1976-03-30 Sundstrand Corporation Hydrostatic transmission control

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3180305A (en) * 1962-02-21 1965-04-27 Gower-Rempel John Vehicle, control system and driving system therefor
US3885388A (en) * 1974-02-13 1975-05-27 Sundstrand Corp Control for a hydrostatic transmission

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611827A (en) * 1949-12-03 1952-09-23 Kellogg Switchboard & Supply Crossbar switch
US3323607A (en) * 1965-03-12 1967-06-06 Komatsu Mfg Co Ltd Combined speed control and steering device for vehicles
US3540220A (en) * 1968-03-26 1970-11-17 Eaton Yale & Towne Hydrostatic transmission control system
US3677362A (en) * 1970-09-02 1972-07-18 Int Harvester Co Hydrostatic transmission hydraulic control and single lever for operating same
US3799362A (en) * 1973-01-22 1974-03-26 Standard Mfg Co Six wheel material handling vehicle
US3885988A (en) * 1973-10-04 1975-05-27 Lorenz Bohle Method and apparatus for filling adjacent insulating tubes forming the positive plate of a lead-acid storage battery
US3946560A (en) * 1974-02-13 1976-03-30 Sundstrand Corporation Hydrostatic transmission control

Also Published As

Publication number Publication date
DE2745561A1 (de) 1978-06-01
JPS5369328A (en) 1978-06-20
FR2372468B1 (fr) 1984-08-31
IT1090347B (it) 1985-06-26
GB1584680A (en) 1981-02-18
US4085812A (en) 1978-04-25

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Legal Events

Date Code Title Description
ST Notification of lapse