WO2010136785A3 - Controlled hydraulic systems comprising a variable drive ratio device - Google Patents

Controlled hydraulic systems comprising a variable drive ratio device Download PDF

Info

Publication number
WO2010136785A3
WO2010136785A3 PCT/GB2010/050784 GB2010050784W WO2010136785A3 WO 2010136785 A3 WO2010136785 A3 WO 2010136785A3 GB 2010050784 W GB2010050784 W GB 2010050784W WO 2010136785 A3 WO2010136785 A3 WO 2010136785A3
Authority
WO
WIPO (PCT)
Prior art keywords
controlled hydraulic
drive ratio
variable drive
ratio device
hydraulic systems
Prior art date
Application number
PCT/GB2010/050784
Other languages
French (fr)
Other versions
WO2010136785A2 (en
Inventor
Phil Godfrey
Original Assignee
David Brown Hydraulics Limited
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 David Brown Hydraulics Limited filed Critical David Brown Hydraulics Limited
Priority to US13/322,135 priority Critical patent/US20120070312A1/en
Priority to EP10720663.3A priority patent/EP2435712B1/en
Publication of WO2010136785A2 publication Critical patent/WO2010136785A2/en
Publication of WO2010136785A3 publication Critical patent/WO2010136785A3/en

Links

Classifications

    • 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
    • F04B49/20—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 by changing the driving speed
    • 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
    • F04B49/06—Control using electricity
    • F04B49/065—Control using electricity and making use of computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
    • F15B11/055—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive by adjusting the pump output or bypass
    • 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
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0209—Rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • F15B2211/20515—Electric motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20507—Type of prime mover
    • F15B2211/20523—Internal combustion engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/255—Flow control functions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/665—Methods of control using electronic components
    • F15B2211/6651—Control of the prime mover, e.g. control of the output torque or rotational speed

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

There is herein described a controlled hydraulic systems for operating machinery. More particularly, there is described a controlled hydraulic system (200) comprising a variable drive ratio device (214) interposed between a prime mover (210) and a fixed displacement pump (112) for controlling the operating speed of the pump (212) and hence the output flow in the hydraulic system.
PCT/GB2010/050784 2009-05-26 2010-05-13 Controlled hydraulic systems WO2010136785A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US13/322,135 US20120070312A1 (en) 2009-05-26 2010-05-13 Controlled hydraulic systems
EP10720663.3A EP2435712B1 (en) 2009-05-26 2010-05-13 Controlled hydraulic systems comprising a variable drive ratio device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0908982.2 2009-05-26
GBGB0908982.2A GB0908982D0 (en) 2009-05-26 2009-05-26 Controlled hydraulic systems

Publications (2)

Publication Number Publication Date
WO2010136785A2 WO2010136785A2 (en) 2010-12-02
WO2010136785A3 true WO2010136785A3 (en) 2011-03-31

Family

ID=40862949

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/050784 WO2010136785A2 (en) 2009-05-26 2010-05-13 Controlled hydraulic systems

Country Status (4)

Country Link
US (1) US20120070312A1 (en)
EP (1) EP2435712B1 (en)
GB (1) GB0908982D0 (en)
WO (1) WO2010136785A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489623A (en) * 1982-05-03 1984-12-25 Caterpillar Tractor Co. Axle shaft and pump drive mechanism
DE10102655A1 (en) * 2001-01-20 2002-07-25 Joerg Wallaschek Drive method for high pressure pump for common rail fuel injection systems has mechanical continuously adjustable transmission to connect IC engine and common rail high pressure pump
US20060245934A1 (en) * 2005-04-29 2006-11-02 Caterpillar Inc. System and method for controlling a fluid pump

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024710A (en) * 1976-03-25 1977-05-24 Koehring Company Load sensing hydraulic circuit having power matching means
GB1582430A (en) * 1976-12-22 1981-01-07 Secr Defence Variable ratio transmission systems
US4555952A (en) * 1984-06-08 1985-12-03 Borg-Warner Corporation Differential pressure sensor
US4757886A (en) * 1987-01-20 1988-07-19 Ford Motor Company Transmission clutch closed loop slip controller and method
US4798527A (en) * 1988-03-07 1989-01-17 Vickers, Incorporated Control system for injection molding machine
US5092824A (en) * 1990-10-09 1992-03-03 Connett Donald C Pump output control system with high efficiency hydromechanical variable speed drive
US5579642A (en) * 1995-05-26 1996-12-03 Husco International, Inc. Pressure compensating hydraulic control system
DE69821750T2 (en) * 1997-04-18 2006-06-22 Transport Energy Systems Pty. Ltd., Holland Park Hybrid drive system for use in vehicle operation
US6139280A (en) * 1998-01-21 2000-10-31 Compressor Systems, Inc. Electric switch gauge for screw compressors
JP3868112B2 (en) * 1998-05-22 2007-01-17 株式会社小松製作所 Control device for hydraulic drive machine
JP2002174332A (en) * 2000-09-18 2002-06-21 Fuji Heavy Ind Ltd Work vehicle
JP4098955B2 (en) * 2000-12-18 2008-06-11 日立建機株式会社 Construction machine control equipment
US6591697B2 (en) * 2001-04-11 2003-07-15 Oakley Henyan Method for determining pump flow rates using motor torque measurements
US6761029B2 (en) * 2001-12-13 2004-07-13 Caterpillar Inc Swing control algorithm for hydraulic circuit
US6637461B2 (en) * 2002-03-08 2003-10-28 Husco International, Inc. Electrically operated hydraulic actuator with force feedback position sensing
US6761027B2 (en) * 2002-06-27 2004-07-13 Caterpillar Inc Pressure-compensated hydraulic circuit with regeneration
US7487707B2 (en) * 2006-09-27 2009-02-10 Husco International, Inc. Hydraulic valve assembly with a pressure compensated directional spool valve and a regeneration shunt valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489623A (en) * 1982-05-03 1984-12-25 Caterpillar Tractor Co. Axle shaft and pump drive mechanism
DE10102655A1 (en) * 2001-01-20 2002-07-25 Joerg Wallaschek Drive method for high pressure pump for common rail fuel injection systems has mechanical continuously adjustable transmission to connect IC engine and common rail high pressure pump
US20060245934A1 (en) * 2005-04-29 2006-11-02 Caterpillar Inc. System and method for controlling a fluid pump

Also Published As

Publication number Publication date
US20120070312A1 (en) 2012-03-22
WO2010136785A2 (en) 2010-12-02
GB0908982D0 (en) 2009-07-01
EP2435712A2 (en) 2012-04-04
EP2435712B1 (en) 2015-04-22

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