USB400871I5 - - Google Patents

Info

Publication number
USB400871I5
USB400871I5 US40087173A USB400871I5 US B400871 I5 USB400871 I5 US B400871I5 US 40087173 A US40087173 A US 40087173A US B400871 I5 USB400871 I5 US B400871I5
Authority
US
United States
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.)
Pending
Application number
Other languages
English (en)
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 filed Critical
Priority to US05/400,871 priority Critical patent/US3988893A/en
Priority to GB3382576A priority patent/GB1468268A/en
Priority to GB3382676A priority patent/GB1468269A/en
Priority to GB1263574A priority patent/GB1468267A/en
Priority to JP49064165A priority patent/JPS5939338B2/ja
Priority to FR7427581A priority patent/FR2257455B1/fr
Priority to CA207,794A priority patent/CA1018044A/en
Priority to DE19742446008 priority patent/DE2446008A1/de
Publication of USB400871I5 publication Critical patent/USB400871I5/en
Application granted granted Critical
Publication of US3988893A publication Critical patent/US3988893A/en
Priority to FR7918665A priority patent/FR2431387A1/fr
Priority to FR7918806A priority patent/FR2431386A1/fr
Priority to JP16213681A priority patent/JPS57161353A/ja
Priority to JP16213781A priority patent/JPS57161354A/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4157—Control of braking, e.g. preventing pump over-speeding when motor acts as a pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B60T13/22—Brakes applied by springs or weights and released 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/456—Control of the balance of torque or speed between pumps or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F16H61/47—Automatic regulation in accordance with output requirements for achieving a target output speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed- or reversing-gearings for conveying rotary motion
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/423—Motor capacity control by fluid pressure control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Fluid Gearings (AREA)
US05/400,871 1972-04-28 1973-09-26 Hydrostatic transmission drive system Expired - Lifetime US3988893A (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
US05/400,871 US3988893A (en) 1972-04-28 1973-09-26 Hydrostatic transmission drive system
GB3382576A GB1468268A (en) 1973-09-26 1974-03-21 Hydrostatic transmission drive system
GB3382676A GB1468269A (en) 1973-09-26 1974-03-21 Hydrostatic transmission drive system
GB1263574A GB1468267A (en) 1973-09-26 1974-03-21 Hydrostatic transmission drive system
JP49064165A JPS5939338B2 (ja) 1973-09-26 1974-06-07 流体圧力式車両駆動装置
FR7427581A FR2257455B1 (enrdf_load_stackoverflow) 1973-09-26 1974-08-08
CA207,794A CA1018044A (en) 1973-09-26 1974-08-26 Hydrostatic transmission drive system
DE19742446008 DE2446008A1 (de) 1973-09-26 1974-09-26 Hydrostatisches antriebssystem
FR7918665A FR2431387A1 (fr) 1973-09-26 1979-07-19 Perfectionnements aux systemes d'entrainement a transmissions hydrostatiques
FR7918806A FR2431386A1 (fr) 1973-09-26 1979-07-20 Perfectionnements aux systemes d'entrainement a transmissions hydrostatiques
JP16213681A JPS57161353A (en) 1973-09-26 1981-10-13 Fluid pressure type vehicle driver
JP16213781A JPS57161354A (en) 1973-09-26 1981-10-13 Fluid pressure type vehicle driver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24868572A 1972-04-28 1972-04-28
US05/400,871 US3988893A (en) 1972-04-28 1973-09-26 Hydrostatic transmission drive system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US24868572A Continuation-In-Part 1972-04-28 1972-04-28

Publications (2)

Publication Number Publication Date
USB400871I5 true USB400871I5 (enrdf_load_stackoverflow) 1976-02-17
US3988893A US3988893A (en) 1976-11-02

Family

ID=26939510

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/400,871 Expired - Lifetime US3988893A (en) 1972-04-28 1973-09-26 Hydrostatic transmission drive system

Country Status (1)

Country Link
US (1) US3988893A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361259A1 (fr) * 1976-08-13 1978-03-10 Caterpillar Tractor Co Mecanisme de deblocage de frein

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116291A (en) * 1977-07-18 1978-09-26 Brungart Nelson D Integrated steering control for tracked vehicles
JPS56501459A (enrdf_load_stackoverflow) * 1979-11-01 1981-10-08
US4310078A (en) * 1980-05-01 1982-01-12 International Harvester Company Drive system, controlling braking system therefor, and safety lock controlling both
US4696162A (en) * 1984-05-09 1987-09-29 Sundstrand Corporation Multi-function valve
US4891942A (en) * 1988-06-27 1990-01-09 Sundstrand Corporation Hydraulically powered actuator for maintaining a member under preload
US5897176A (en) * 1996-03-15 1999-04-27 Caterpillar Inc. Braking apparatus and method for use with a moving vehicle
JP3070002B2 (ja) * 1996-09-20 2000-07-24 本田技研工業株式会社 無段変速操向装置
US6135580A (en) * 1998-03-20 2000-10-24 Caterpillar Inc. Hydraulically actuated power braking apparatus and method for use with a moving vehicle
DE60226760D1 (de) * 2001-10-22 2008-07-03 Yanmar Co Ltd Fahrzeug mit hydraulikgetriebe
US7004268B2 (en) * 2003-06-06 2006-02-28 Koji Irikura Vehicle having twin transmissions for driving respective wheels
DE102004061558A1 (de) * 2004-12-21 2006-07-06 Brueninghaus Hydromatik Gmbh Verfahren zum Abbremsen eines mittels eines hydrostatischen Getriebes angetriebenen Fahrzeugs sowie ein hydrostatischer Antrieb
AU2006344654A1 (en) * 2006-06-12 2007-12-21 Shinagawa Refractories Co Hydraulic stepless transmission
EP1925520A1 (en) * 2006-11-24 2008-05-28 Caterpillar, Inc. Method for controlling a powertrain and associated powertrain
US7712555B2 (en) * 2007-06-04 2010-05-11 Clark Equipment Company Steerable series two speed motor configuration
FR2926854B1 (fr) * 2008-01-29 2010-03-26 Poclain Hydraulics Ind Dispositif de moteur hydraulique pour l'assistance a la transmission mecanique d'un vehicule.
US7958725B2 (en) * 2008-05-21 2011-06-14 Caterpillar Inc. Drivetrain system having simultaneous displacement control
US8985252B2 (en) 2012-11-19 2015-03-24 Macdon Industries Ltd. Speed and steering control of a hydraulically driven tractor
US20250244203A1 (en) * 2024-01-26 2025-07-31 Pratt & Whitney Canada Corp. System and method for detecting a mechanical transmission failure

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518578A (en) * 1946-08-15 1950-08-15 Hydro Aire Inc Hydraulic pump and motor transmission with motor displacement responsive to motor speed and fluid pressure
US2880586A (en) * 1955-10-25 1959-04-07 Gen Motors Corp Fluid system with priority valve
US3234856A (en) * 1964-01-31 1966-02-15 James H Martin Propulsion system
US3238723A (en) * 1964-02-17 1966-03-08 New York Air Brake Co Hydrostatic transmission
US3279637A (en) * 1964-09-08 1966-10-18 Robert A Olson Hydraulic drive control mechanism for vehicles
US3368425A (en) * 1965-05-27 1968-02-13 Gen Electric Steering and driving power system
US3442344A (en) * 1966-06-27 1969-05-06 Simit Spa Fluid pressure transmissions for propelling vehicles
US3526288A (en) * 1967-06-14 1970-09-01 Caterpillar Tractor Co Hydrostatic transmission control system
US3650107A (en) * 1970-08-12 1972-03-21 Sperry Rand Corp Power transmission
US3727402A (en) * 1971-06-30 1973-04-17 Eaton Corp Hydrostatic transmission speed and steering control system
US3795109A (en) * 1972-04-28 1974-03-05 Eaton Corp Hydrostatic transmission drive system

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518578A (en) * 1946-08-15 1950-08-15 Hydro Aire Inc Hydraulic pump and motor transmission with motor displacement responsive to motor speed and fluid pressure
US2880586A (en) * 1955-10-25 1959-04-07 Gen Motors Corp Fluid system with priority valve
US3234856A (en) * 1964-01-31 1966-02-15 James H Martin Propulsion system
US3238723A (en) * 1964-02-17 1966-03-08 New York Air Brake Co Hydrostatic transmission
US3279637A (en) * 1964-09-08 1966-10-18 Robert A Olson Hydraulic drive control mechanism for vehicles
US3368425A (en) * 1965-05-27 1968-02-13 Gen Electric Steering and driving power system
US3442344A (en) * 1966-06-27 1969-05-06 Simit Spa Fluid pressure transmissions for propelling vehicles
US3526288A (en) * 1967-06-14 1970-09-01 Caterpillar Tractor Co Hydrostatic transmission control system
US3650107A (en) * 1970-08-12 1972-03-21 Sperry Rand Corp Power transmission
US3727402A (en) * 1971-06-30 1973-04-17 Eaton Corp Hydrostatic transmission speed and steering control system
US3795109A (en) * 1972-04-28 1974-03-05 Eaton Corp Hydrostatic transmission drive system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2361259A1 (fr) * 1976-08-13 1978-03-10 Caterpillar Tractor Co Mecanisme de deblocage de frein

Also Published As

Publication number Publication date
US3988893A (en) 1976-11-02

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