ES8106595A1 - Un circuito de control electrico para controlar la regula- cion de una unidad regulable. - Google Patents

Un circuito de control electrico para controlar la regula- cion de una unidad regulable.

Info

Publication number
ES8106595A1
ES8106595A1 ES493681A ES493681A ES8106595A1 ES 8106595 A1 ES8106595 A1 ES 8106595A1 ES 493681 A ES493681 A ES 493681A ES 493681 A ES493681 A ES 493681A ES 8106595 A1 ES8106595 A1 ES 8106595A1
Authority
ES
Spain
Prior art keywords
hydrostatic transmission
control system
solenoid valve
transmission control
displacement
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.)
Expired
Application number
ES493681A
Other languages
English (en)
Other versions
ES493681A0 (es
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of ES8106595A1 publication Critical patent/ES8106595A1/es
Publication of ES493681A0 publication Critical patent/ES493681A0/es
Granted 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
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/431—Pump capacity control by electro-hydraulic control means, e.g. using solenoid valves
    • 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
    • F16H61/439—Control of the neutral position, e.g. by zero tilt rotation holding means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/14—Control of position or direction using feedback using an analogue comparing device
    • 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
    • F16H59/68—Inputs being a function of gearing status
    • F16H2059/6838—Sensing gearing status of hydrostatic transmissions
    • F16H2059/6853—Sensing gearing status of hydrostatic transmissions the state of the transmission units, i.e. motor or pump capacity, e.g. for controlled shifting of range gear

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Fluid Gearings (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Transmission Device (AREA)

Abstract

CIRCUITO DE CONTROL ELECTRICO PARA UNA TRANSMISION HIDROSTATICA CONTROLABLE CON PASO POR CERO. COMPRENDE DOS FUENTES DE POTENCIAL ELECTRICO (49), (59) QUE GENERAN SEÑALES DE VALOR NOMINAL Y VALOR REAL PARA EL ACCIONAMIENTO DE LA VALVULAS (33 Y 37) DE CONTROL DE LA UNIDAD DE BOMBA. UN CIRCUITO AMPLIFICADOR DIFERENCIAL (115) AL QUE SE ALIMENTAN LOS DOS POTENCIALES A TRAVES DE UN FILTRO, Y UN CIRCUITO COMPARADOR QUE COMPARA LA SEÑAL DE SALIDA DEL CIRCUITO AMPLIFICADOR DIFERENCIAL CON UNA SEÑAL DE REFERENCIA.
ES493681A 1979-07-26 1980-07-24 Un circuito de control electrico para controlar la regula- cion de una unidad regulable. Granted ES493681A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/061,140 US4282711A (en) 1979-07-26 1979-07-26 Hydrostatic transmission control system

Publications (2)

Publication Number Publication Date
ES8106595A1 true ES8106595A1 (es) 1981-06-16
ES493681A0 ES493681A0 (es) 1981-06-16

Family

ID=22033870

Family Applications (1)

Application Number Title Priority Date Filing Date
ES493681A Granted ES493681A0 (es) 1979-07-26 1980-07-24 Un circuito de control electrico para controlar la regula- cion de una unidad regulable.

Country Status (11)

Country Link
US (1) US4282711A (es)
BE (1) BE884475A (es)
CA (1) CA1129525A (es)
DE (1) DE3026565C2 (es)
DK (1) DK313280A (es)
ES (1) ES493681A0 (es)
FR (1) FR2462625B1 (es)
GB (1) GB2055490B (es)
IT (1) IT1195974B (es)
MX (1) MX153740A (es)
NL (1) NL8004253A (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041273B1 (en) * 1980-06-04 1984-09-12 Hitachi Construction Machinery Co., Ltd. Circuit pressure control system for hydrostatic power transmission
USRE33846E (en) * 1982-04-01 1992-03-17 Deere & Company Electrohydraulic valve system
US4437385A (en) 1982-04-01 1984-03-20 Deere & Company Electrohydraulic valve system
US4815289A (en) * 1983-06-24 1989-03-28 Sundstrand Corporation Variable pressure control
JP2840671B2 (ja) * 1987-02-28 1998-12-24 株式会社島津製作所 走行車両用液圧式伝導装置
US5017094A (en) * 1990-03-12 1991-05-21 Eaton Corporation Solenoid valve control system for hydrostatic transmission
US5561979A (en) * 1995-02-17 1996-10-08 Caterpillar Inc. Control arrangement for a hydrostatic system
DE19505691C2 (de) * 1995-02-20 1998-11-26 Sauer Sundstrand Gmbh & Co Hydrostatisches Getriebe mit einem hubvolumenverstellbaren Hydromotor
US6675577B2 (en) 2001-07-13 2004-01-13 Deere & Company Anti-stall transmission control for utility vehicle
US6655233B2 (en) 2001-07-13 2003-12-02 Deere & Company Speed control for a utility vehicle
US6581710B2 (en) 2001-07-13 2003-06-24 Deere & Company Operator selected maximum speed and recalibrated pedal range for a vehicle
US6851495B2 (en) 2001-10-19 2005-02-08 Deere & Co. Speed control for utility vehicle operable from rearward-facing seat
US7416045B2 (en) * 2002-08-28 2008-08-26 Torvec, Inc. Dual hydraulic machine transmission
US7849686B2 (en) * 2007-02-07 2010-12-14 Sauer-Danfoss Aps Valve assembly and a hydraulic actuator comprising the valve assembly
US7677035B2 (en) * 2007-02-07 2010-03-16 Sauer-Danfoss Aps Control system for a hydraulic servomotor
US7690196B2 (en) * 2007-02-07 2010-04-06 Sauer-Danfoss Aps Hydraulic actuator having an auxiliary valve
US8596057B2 (en) * 2009-10-06 2013-12-03 Caterpillar Inc. Method and apparatus for controlling a variable displacement hydraulic pump
DE102012021498A1 (de) * 2012-11-02 2014-05-08 Robert Bosch Gmbh Verstelleinrichtung für eine hydrostatische Verdrängereinheit
US20150033725A1 (en) * 2013-05-20 2015-02-05 Fev Gmbh Hydraulic hybrid safety system

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365886A (en) * 1965-12-03 1968-01-30 Sundstrand Corp Hydrostatic transmission control
US3618469A (en) * 1968-09-19 1971-11-09 Chandler Evans Inc Solenoid operated actuator system
US3529422A (en) * 1968-09-23 1970-09-22 Lee R Herndon Jr Speed control system
US3667225A (en) * 1970-08-12 1972-06-06 Scott Equipment Co Hydrostatic drive and control system therefor
US3659672A (en) * 1971-01-11 1972-05-02 Charles J Jacobus Control system
DE2114639A1 (de) * 1971-03-26 1972-10-05 Bosch Gmbh Robert Elektrohydraulische Steuerungsvorrichtung für einen hydraulischen Verbraucher
CH563532A5 (es) * 1973-03-14 1975-06-30 Buehler Ag Geb
GB1508641A (en) * 1974-02-28 1978-04-26 Eaton Corp Hydrostatic transmission control system
US3901031A (en) * 1974-02-28 1975-08-26 Eaton Corp Hydrostatic transmission control system
US3924410A (en) * 1974-10-02 1975-12-09 Eaton Corp Hydrostatic transmission control system
FR2262758A1 (en) * 1974-02-28 1975-09-26 Eaton Corp Hydrostatic pump and motor transmission - has closed loop ratio control sensitive to error magnitude
DE2446963C2 (de) * 1974-10-02 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart Hydraulische Stelleinrichtung
DE2700803C2 (de) * 1977-01-11 1982-10-28 Sauer Getriebe KG, 2350 Neumünster Regelungssystem für eine Antriebseinrichtung
IT1091735B (it) * 1977-01-11 1985-07-06 Sauer Getriebe Kg Dispositivo di regolazione per un dispositivo di azionamento,in particolare per una trazione idrostatica
US4103489A (en) * 1977-04-15 1978-08-01 Deere & Company Total power fluid system
US4091617A (en) * 1977-05-11 1978-05-30 Eaton Corporation Hydraulic controller
DE2727555A1 (de) * 1977-06-18 1979-01-04 Bosch Gmbh Robert Steuervorrichtung fuer hydrostatische verdraengeraggregate
US4285639A (en) * 1979-06-12 1981-08-25 Parker-Hannifin Corporation Electronic control for variable displacement pumps

Also Published As

Publication number Publication date
DE3026565C2 (de) 1986-05-28
BE884475A (fr) 1980-11-17
NL8004253A (nl) 1981-01-28
DK313280A (da) 1981-01-27
MX153740A (es) 1986-12-30
DE3026565A1 (de) 1981-03-12
US4282711A (en) 1981-08-11
CA1129525A (en) 1982-08-10
GB2055490A (en) 1981-03-04
FR2462625B1 (fr) 1986-06-13
ES493681A0 (es) 1981-06-16
IT1195974B (it) 1988-11-03
IT8049326A0 (it) 1980-07-25
GB2055490B (en) 1983-01-26
FR2462625A1 (fr) 1981-02-13

Similar Documents

Publication Publication Date Title
ES8106595A1 (es) Un circuito de control electrico para controlar la regula- cion de una unidad regulable.
EP0366815A4 (en) Hydraulic drive unit for construction machinery
GB1436613A (en) Fluid pressure control system for variable displacement pumps
ES8300394A1 (es) Mejoras en los dispositivos hidrostaticos de transmision conuna bomba regulable.
GB1500836A (en) Fluid pressure control system for variable displacement pumps
GB1093803A (en) Track laying vehicle
EP0232014A3 (en) Energy-conserving servomechanisms
GB1432395A (en) Steering actuated motor displacement control valve
SE8106632L (sv) Hydrauliskt styrsystem
GB1418793A (en) Hydraulic power transmission systems
GB1440000A (en) Hydraulic control circuit
GB1530578A (en) Control valve for a variable displacement pump or motor
SE7601860L (sv) Elektrohydraulisk styranordning
JPS6479405A (en) Hydraulic control system
GB1408814A (en) Control system for a hydrostartic transmission
CA2097202A1 (en) Conduit Valve Providing Wide Neutral in a Hydrostatic Transmission
ES426061A1 (es) Mejoras introducidas en vehiculos que tienen una transmi- sion de cambio de marcha y un freno accionable hidraulica- mente aplicado por un muelle.
GB1251611A (es)
ES8705950A1 (es) Valvula perfeccionada
GB1418791A (en) Hydrostatic drive control system
FR2426816A2 (fr) Dispositif de commande hydraulique
ES474738A1 (es) Sistema de mando para servoaccionadores hidraulicos.
GB1254809A (en) Control systems for positive-displacement hydraulic transmissions
GB1517867A (en) Hydraulic control valve and system
GB1418266A (en) Pump unloading circuit