FR2426816A2 - Dispositif de commande hydraulique - Google Patents

Dispositif de commande hydraulique

Info

Publication number
FR2426816A2
FR2426816A2 FR7832786A FR7832786A FR2426816A2 FR 2426816 A2 FR2426816 A2 FR 2426816A2 FR 7832786 A FR7832786 A FR 7832786A FR 7832786 A FR7832786 A FR 7832786A FR 2426816 A2 FR2426816 A2 FR 2426816A2
Authority
FR
France
Prior art keywords
controller
fluid
standard
hydrostatic transmission
pressure
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
FR7832786A
Other languages
English (en)
Other versions
FR2426816B2 (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.)
Eaton Corp
Original Assignee
Eaton 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
Priority claimed from US05/909,138 external-priority patent/US4158290A/en
Application filed by Eaton Corp filed Critical Eaton Corp
Publication of FR2426816A2 publication Critical patent/FR2426816A2/fr
Application granted granted Critical
Publication of FR2426816B2 publication Critical patent/FR2426816B2/fr
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
    • F16H61/46—Automatic regulation in accordance with output requirements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/002—Hydraulic systems to change the pump delivery
    • 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
    • F16H61/462—Automatic regulation in accordance with output requirements for achieving a target speed ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Gearings (AREA)

Abstract

L'addition concerne un dispositif de commande électrohydraulique pour la transmission hydrostatique du brevet principal. La transmission comporte une pompe 10 dont le déplacement est commandé par un distributeur manuel 46 alimenté en fluide sous pression par une commande électro-hydraulique 56 qui règle la pression du fluide fourni de façon à maintenir constante une caractéristique de l'installation. La commande 56 comporte un orifice variable 104 commandé par un signal électrique de commande P produit par un circuit logique 110 qui reçoit d'un potentiomètre 120 un signal HP représentant la puissance d'entrée désirée et d'un capteur 114 un signal Nm représentant la vitesse du moteur, qui multiplie ce signal Nm par le signal P pour produire un signal HP d'approximation de la puissance et qui compare les signaux HP et HP' pour engendrer un nouveau signal P tendant à réduire la différence entre les signaux HP' et HP. Application aux transmissions hydrostatiques.
FR7832786A 1978-05-24 1978-11-21 Dispositif de commande hydraulique Granted FR2426816A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/909,138 US4158290A (en) 1977-05-11 1978-05-24 Electro-hydraulic controller

Publications (2)

Publication Number Publication Date
FR2426816A2 true FR2426816A2 (fr) 1979-12-21
FR2426816B2 FR2426816B2 (fr) 1983-09-02

Family

ID=25426684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7832786A Granted FR2426816A2 (fr) 1978-05-24 1978-11-21 Dispositif de commande hydraulique

Country Status (2)

Country Link
DE (1) DE2900224A1 (fr)
FR (1) FR2426816A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537386A1 (fr) * 1982-12-13 1984-06-15 Sundstrand Corp Commande anti-bourrage, notamment pour moissonneuse-batteuse
FR2537801A1 (fr) * 1982-12-10 1984-06-15 Commercial Shearing Systeme d'entrainement d'une generatrice a vitesse constante et appareil de commande de la vitesse d'un arbre
EP3587810A1 (fr) * 2018-06-29 2020-01-01 Robert Bosch GmbH Pompe à pistons axiaux hydrostatique pour un système d'entraînement hydrostatique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3042837C2 (de) * 1980-11-13 1982-12-09 Hydromatik Gmbh, 7900 Ulm Steuer- und Regeleinrichtung bei einem hydrostatischen Getriebe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990054A (en) * 1960-07-08 1965-04-22 Citroen Sa Andre Regulator device for hydraulic motors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB990054A (en) * 1960-07-08 1965-04-22 Citroen Sa Andre Regulator device for hydraulic motors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537801A1 (fr) * 1982-12-10 1984-06-15 Commercial Shearing Systeme d'entrainement d'une generatrice a vitesse constante et appareil de commande de la vitesse d'un arbre
FR2537386A1 (fr) * 1982-12-13 1984-06-15 Sundstrand Corp Commande anti-bourrage, notamment pour moissonneuse-batteuse
EP3587810A1 (fr) * 2018-06-29 2020-01-01 Robert Bosch GmbH Pompe à pistons axiaux hydrostatique pour un système d'entraînement hydrostatique

Also Published As

Publication number Publication date
FR2426816B2 (fr) 1983-09-02
DE2900224A1 (de) 1979-11-29

Similar Documents

Publication Publication Date Title
GB1233620A (fr)
GB989227A (en) Control mechanism for a driving unit consisting of a driving engine and an infinitely variable speed gear
GB1332798A (en) Hydraulic system
GB1510064A (en) Priority flow valve
GB1396439A (en) Hydraulic steering limitation means for hydrostatic steering installations more particularly for motor vehicles
GB1500836A (en) Fluid pressure control system for variable displacement pumps
US3987626A (en) Controls for multiple variable displacement pumps
ES413538A1 (es) Un dispositivo de bomba de ajuste.
GB1313876A (en) Pressure controlled directional systems for fluid motors
US3771564A (en) Pilot control valve
GB1459857A (en) Hydraulic control apparatus
GB1432395A (en) Steering actuated motor displacement control valve
GB1401839A (en) Fluid power systems
ES442776A1 (es) Un dispositivo de control para una maquina hidraulica.
GB1530578A (en) Control valve for a variable displacement pump or motor
US4116002A (en) Control for a variable displacement pump or motor
GB1440000A (en) Hydraulic control circuit
GB1306114A (fr)
US4096694A (en) Control system for a fluid drive
GB1418793A (en) Hydraulic power transmission systems
SE7702722L (sv) Hydrauliskt styrsystem med variabel aterkoppling
GB1408814A (en) Control system for a hydrostartic transmission
US3862645A (en) Pilot control valve
US3370513A (en) Power assist control system utilizing a fluid, pilot-operated control valve
FR2248429A1 (en) Hydraulic control system - is for hydraulic pumps with maximum values for pressure and flow