JPS57171042A - Control system for series including internal-combustion engine and hydraulic pump - Google Patents

Control system for series including internal-combustion engine and hydraulic pump

Info

Publication number
JPS57171042A
JPS57171042A JP56056676A JP5667681A JPS57171042A JP S57171042 A JPS57171042 A JP S57171042A JP 56056676 A JP56056676 A JP 56056676A JP 5667681 A JP5667681 A JP 5667681A JP S57171042 A JPS57171042 A JP S57171042A
Authority
JP
Japan
Prior art keywords
signal
hydraulic pump
function generator
pressure
control 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
JP56056676A
Other languages
Japanese (ja)
Other versions
JPS628620B2 (en
Inventor
Yukio Aoyanagi
Eiki Izumi
Hiroshi Watanabe
Kazuo Honma
Yoshio Nakajima
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co Ltd
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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP56056676A priority Critical patent/JPS57171042A/en
Priority to KR1019810003829A priority patent/KR870000168B1/en
Priority to DE8181902759T priority patent/DE3176207D1/en
Priority to US06/387,884 priority patent/US4606313A/en
Priority to PCT/JP1981/000270 priority patent/WO1982001396A1/en
Priority to EP81902759A priority patent/EP0062072B1/en
Publication of JPS57171042A publication Critical patent/JPS57171042A/en
Publication of JPS628620B2 publication Critical patent/JPS628620B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2246—Control of prime movers, e.g. depending on the hydraulic load of work tools
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/06—Fuel or fuel supply system parameters
    • F02D2200/0602—Fuel pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/18—Control of the engine output torque
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2250/00—Engine control related to specific problems or objectives
    • F02D2250/31—Control of the fuel pressure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To enable to prevent the engine from stopping by a method wherein a fuel injection amount is controlled based on a revolution number deviation signal with a signal from a function generator while the maximum value of a hydraulic pump input torque is limited by a control pressure singnal, in a hydraulic shovel or the like. CONSTITUTION:The revolution number deviation signal DELTAN is turned into a target rack displacement signal or a fuel injection amount commanding signal M, which is in a predetermined functional relation with it, in the function generator 60 and is fed to a fuel injection device 22. On the other hand, the control pressure commanding signal S in the predetermined functional relation is generated in the function generator 62, it is turned into a proportional control pressure by an electric hydraulic pressure converting valve 64, then, it is entered into the pressure receiving part of a piston mechanism 38 as a pilot pressure command and, thus, the maximum value of the input torque of the hydraulic pump 24 is decreased in reverse to the increase of the signal DELTAN. Further, the control pressure commanding signal R in the predetermined relation is generated in the function generator 66, it is turned into the pilot pressure command in the electric hydraulic pressure converting valve 68 consisting of a proportional solenoid valve to input it into the piston mechanism 52, and it controls the hydraulic pump 26 in the same manner. Accordingly, the engine will never be stopped even if the load thereof is increased suddenly.
JP56056676A 1980-10-09 1981-04-15 Control system for series including internal-combustion engine and hydraulic pump Granted JPS57171042A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP56056676A JPS57171042A (en) 1981-04-15 1981-04-15 Control system for series including internal-combustion engine and hydraulic pump
KR1019810003829A KR870000168B1 (en) 1980-10-09 1981-10-08 Apparatus for controlling a hydraulic power system
DE8181902759T DE3176207D1 (en) 1980-10-09 1981-10-08 Method for controlling a hydraulic power system
US06/387,884 US4606313A (en) 1980-10-09 1981-10-08 Method of and system for controlling hydraulic power system
PCT/JP1981/000270 WO1982001396A1 (en) 1980-10-09 1981-10-08 Method and apparatus for controlling a hydraulic power system
EP81902759A EP0062072B1 (en) 1980-10-09 1981-10-08 Method for controlling a hydraulic power system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56056676A JPS57171042A (en) 1981-04-15 1981-04-15 Control system for series including internal-combustion engine and hydraulic pump

Publications (2)

Publication Number Publication Date
JPS57171042A true JPS57171042A (en) 1982-10-21
JPS628620B2 JPS628620B2 (en) 1987-02-24

Family

ID=13034020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56056676A Granted JPS57171042A (en) 1980-10-09 1981-04-15 Control system for series including internal-combustion engine and hydraulic pump

Country Status (1)

Country Link
JP (1) JPS57171042A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123640U (en) * 1983-02-10 1984-08-20 株式会社小松製作所 Diesel engine horsepower control device
JPS59208140A (en) * 1983-05-12 1984-11-26 Hitachi Constr Mach Co Ltd Apparatus for preventing prime mover from over-run
JPS60195339A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic pump driving system controller
JPS60195338A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic pump driving system controller
JPS60195337A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic-pump driving system controller
JPS61502114A (en) * 1984-05-14 1986-09-25 キヤタピラ−　トラクタ−　コムパニ− Hydrostatic vehicle control device
JPS62265433A (en) * 1986-05-13 1987-11-18 Hitachi Constr Mach Co Ltd Engine speed controlling device for internal combustion engine
WO2002014669A1 (en) * 2000-08-14 2002-02-21 Robert Bosch Gmbh Method, computer programme and control and/or regulation device for operating an internal combustion engine
WO2007066602A1 (en) * 2005-12-09 2007-06-14 Komatsu Ltd. Engine-load control device for working vehicle
EP2002128A1 (en) * 2006-03-13 2008-12-17 Volvo Construction Equipment AB A method and an arrangement for controlling pump displacement in a work vehicle
JP2009174536A (en) * 2009-01-22 2009-08-06 Komatsu Ltd Load control device of engine of work vehicle
JP2009197805A (en) * 2009-04-28 2009-09-03 Komatsu Ltd Load control device for engine of working vehicle
JP2016020654A (en) * 2014-07-14 2016-02-04 株式会社Ihi Reciprocating compressor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4819782B2 (en) * 2007-12-10 2011-11-24 日立建機株式会社 Internal combustion engine speed control device for work machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891354A (en) * 1973-06-22 1975-06-24 Bosch Gmbh Robert Regulating system for pumps
US3914938A (en) * 1974-08-20 1975-10-28 Eaton Corp Electrical hydrostatic transmission control system
US3969614A (en) * 1973-12-12 1976-07-13 Ford Motor Company Method and apparatus for engine control
JPS5532968A (en) * 1978-08-29 1980-03-07 Komatsu Ltd Engine control system for construction machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891354A (en) * 1973-06-22 1975-06-24 Bosch Gmbh Robert Regulating system for pumps
US3969614A (en) * 1973-12-12 1976-07-13 Ford Motor Company Method and apparatus for engine control
US3914938A (en) * 1974-08-20 1975-10-28 Eaton Corp Electrical hydrostatic transmission control system
JPS5532968A (en) * 1978-08-29 1980-03-07 Komatsu Ltd Engine control system for construction machine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59123640U (en) * 1983-02-10 1984-08-20 株式会社小松製作所 Diesel engine horsepower control device
JPH0318675Y2 (en) * 1983-02-10 1991-04-19
JPS59208140A (en) * 1983-05-12 1984-11-26 Hitachi Constr Mach Co Ltd Apparatus for preventing prime mover from over-run
JPH0347423B2 (en) * 1983-05-12 1991-07-19 Hitachi Construction Machinery
JPH0459455B2 (en) * 1984-03-17 1992-09-22 Hitachi Construction Machinery
JPS60195339A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic pump driving system controller
JPS60195338A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic pump driving system controller
JPS60195337A (en) * 1984-03-17 1985-10-03 Hitachi Constr Mach Co Ltd Hydraulic-pump driving system controller
JPH0459457B2 (en) * 1984-03-17 1992-09-22 Hitachi Construction Machinery
JPH0459456B2 (en) * 1984-03-17 1992-09-22 Hitachi Construction Machinery
JPS61502114A (en) * 1984-05-14 1986-09-25 キヤタピラ−　トラクタ−　コムパニ− Hydrostatic vehicle control device
JPH0568387B2 (en) * 1984-05-14 1993-09-28 Caterpillar Inc
JPS62265433A (en) * 1986-05-13 1987-11-18 Hitachi Constr Mach Co Ltd Engine speed controlling device for internal combustion engine
WO2002014669A1 (en) * 2000-08-14 2002-02-21 Robert Bosch Gmbh Method, computer programme and control and/or regulation device for operating an internal combustion engine
US6748927B2 (en) 2000-08-14 2004-06-15 Robert Bosch Gmbh Method, computer programme and control and/or regulation device for operating an internal combustion engine
KR100797383B1 (en) 2000-08-14 2008-01-24 로베르트 보쉬 게엠베하 Method, computer programme and control and/or regulation device for operating an internal combustion engine
WO2007066602A1 (en) * 2005-12-09 2007-06-14 Komatsu Ltd. Engine-load control device for working vehicle
US8082082B2 (en) 2005-12-09 2011-12-20 Komatsu Ltd. Engine-load control device for working vehicle
EP2002128A1 (en) * 2006-03-13 2008-12-17 Volvo Construction Equipment AB A method and an arrangement for controlling pump displacement in a work vehicle
EP2002128A4 (en) * 2006-03-13 2012-07-18 Volvo Constr Equip Ab A method and an arrangement for controlling pump displacement in a work vehicle
JP2009174536A (en) * 2009-01-22 2009-08-06 Komatsu Ltd Load control device of engine of work vehicle
JP2009197805A (en) * 2009-04-28 2009-09-03 Komatsu Ltd Load control device for engine of working vehicle
JP2016020654A (en) * 2014-07-14 2016-02-04 株式会社Ihi Reciprocating compressor

Also Published As

Publication number Publication date
JPS628620B2 (en) 1987-02-24

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