GB2090349A - Speed sensor synchronized hydromechanical steering differential - Google Patents

Speed sensor synchronized hydromechanical steering differential

Info

Publication number
GB2090349A
GB2090349A GB8137934A GB8137934A GB2090349A GB 2090349 A GB2090349 A GB 2090349A GB 8137934 A GB8137934 A GB 8137934A GB 8137934 A GB8137934 A GB 8137934A GB 2090349 A GB2090349 A GB 2090349A
Authority
GB
United Kingdom
Prior art keywords
axle
differential
speed sensor
hydromechanical steering
hydrostatically
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Withdrawn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
GB8137934A
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.)
Navistar Inc
Original Assignee
International Harverster 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 International Harverster Corp filed Critical International Harverster Corp
Publication of GB2090349A publication Critical patent/GB2090349A/en
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

A crawler tractor (10) adapted for stepless hydromechanical steering by driving. The power train terminates in a novel hydromechanical steering differential (25) delivering its output to an oppositely extending pair of axles (38, 40) at the sides of the tractor, which differential is selectively forced into differentialing by a variable displacement crossfeeding pair of axle-interconnecting hydrostatic pump/motor units (18, 20) which, in a primary turning mode thereof, selectively drives either axle at only some hydrostatically fixed reduction drive ratio to the other and, secondarily whenever necessary, which differential speed sensor mechanism (134) causing a synchronized mode of the axle-interconnecting hydrostatic pump/motor units so that both axles turn at strictly a 1:1 hydrostatically fixed drive ratio therebetween.
GB8137934A 1980-05-30 1980-05-30 Speed sensor synchronized hydromechanical steering differential Withdrawn GB2090349A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/000695 WO1981003471A1 (en) 1980-05-30 1980-05-30 Speed sensor synchronized,hydromechanical steering differential

Publications (1)

Publication Number Publication Date
GB2090349A true GB2090349A (en) 1982-07-07

Family

ID=22154386

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8137934A Withdrawn GB2090349A (en) 1980-05-30 1980-05-30 Speed sensor synchronized hydromechanical steering differential

Country Status (2)

Country Link
GB (1) GB2090349A (en)
WO (1) WO1981003471A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2383614A (en) * 2001-12-28 2003-07-02 Visteon Global Tech Inc Differential having a power source which varies torque between two differential shafts

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638232A1 (en) * 1986-11-08 1988-05-11 Bosch Gmbh Robert DIFFERENTIAL LOCK FOR DIFFERENTIAL GEARBOX
DE3727690A1 (en) * 1987-08-19 1989-03-02 Rexroth Mannesmann Gmbh CIRCUIT ARRANGEMENT FOR DRIVING A VEHICLE
US20090025380A1 (en) 2007-07-24 2009-01-29 Parker Hannifin Corporation, An Ohio Corporation Fixed/variable hybrid system
US8561749B2 (en) * 2011-09-19 2013-10-22 Hb Performance Systems, Inc. ATV or UTV differential with integrated sensors
DE102012212248A1 (en) * 2012-07-12 2014-01-16 Kässbohrer Geländefahrzeug AG Tracked vehicle with a central drive motor

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353554A (en) * 1944-07-11 Endless track vehicle
US1984830A (en) * 1933-05-05 1934-12-18 Frank R Higley Vehicle drive
GB567635A (en) * 1939-12-20 1945-02-26 Henry Edward Merritt Improvements in steering mechanisms for track-laying vehicles
US2336911A (en) * 1941-09-05 1943-12-14 Vickers Inc Power transmission and steering control for traction devices
US2336912A (en) * 1941-09-05 1943-12-14 Vickers Inc Power transmission and steering control for traction devices
US2394119A (en) * 1943-06-05 1946-02-05 Int Harvester Co Steering and driving gear for vehicles
US2401628A (en) * 1943-10-30 1946-06-04 Budd Wheel Co Vehicle driving mechanism
US2446242A (en) * 1946-10-22 1948-08-03 Acrotorque Co Hydraulic drive control mechanism for vehicles
US2580946A (en) * 1947-01-04 1952-01-01 Acrotorque Co Driving mechanism and control system therefor
DE957184C (en) * 1952-08-22 1957-01-31 Hydromatic G M B H Tracked vehicle drive
US2996135A (en) * 1958-06-06 1961-08-15 Daimler Benz Ag Hydrostatic driving means for the wheels of vehicles, particularly motor vehicles
US3169595A (en) * 1961-09-05 1965-02-16 Shepherd Machinery Co Wheel speed control
US3383952A (en) * 1965-02-01 1968-05-21 Gen Motors Corp Hydrostatic-mechanical vehicle drive
CH439997A (en) * 1965-09-08 1967-07-15 Renk Ag Zahnraeder Overlay steering gear for caterpillar vehicles
GB1122268A (en) * 1965-11-04 1968-08-07 Secr Defence A driving and steering system for vehicles
US3744584A (en) * 1971-04-29 1973-07-10 Int Harvester Co Hydrostatic transmission motors and coordinating clutch for same
US3815698A (en) * 1972-04-20 1974-06-11 Gen Electric Hydromechanical steering transmission
US3862668A (en) * 1973-06-13 1975-01-28 Eaton Corp Hydrostatic transmission control system
DE2412562C3 (en) * 1974-03-15 1979-06-07 Zahnraederfabrik Renk Ag, 8900 Augsburg Overlay steering gear for caterpillar vehicles
US3914938A (en) * 1974-08-20 1975-10-28 Eaton Corp Electrical hydrostatic transmission control system
US4019596A (en) * 1975-12-30 1977-04-26 Sundstrand Corporation Synchronous control system
US4246992A (en) * 1976-05-21 1981-01-27 Caterpillar Tractor Co. Vehicle steering brake and clutch control
US4093048A (en) * 1976-05-21 1978-06-06 Caterpillar Tractor Co. Vehicle steering brake and clutch control
US4174762A (en) * 1977-02-02 1979-11-20 Caterpillar Tractor Co. Hydrostatic transmission with differential steering
US4175628A (en) * 1978-07-10 1979-11-27 Eaton Corporation Steering control system for dual path hydrostatic vehicle
US4236595A (en) * 1979-08-17 1980-12-02 Parno Corp. Auxiliary drive system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2383614A (en) * 2001-12-28 2003-07-02 Visteon Global Tech Inc Differential having a power source which varies torque between two differential shafts
US6783474B2 (en) 2001-12-28 2004-08-31 Visteon Global Technologies, Inc. Torque controller for controlling torque to two or more shafts

Also Published As

Publication number Publication date
WO1981003471A1 (en) 1981-12-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)