JPH0514121B2 - - Google Patents

Info

Publication number
JPH0514121B2
JPH0514121B2 JP60018570A JP1857085A JPH0514121B2 JP H0514121 B2 JPH0514121 B2 JP H0514121B2 JP 60018570 A JP60018570 A JP 60018570A JP 1857085 A JP1857085 A JP 1857085A JP H0514121 B2 JPH0514121 B2 JP H0514121B2
Authority
JP
Japan
Prior art keywords
valve
pressure
control
actuator
control valve
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 - Lifetime
Application number
JP60018570A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61180001A (ja
Inventor
Yoshio Nakajima
Kazuo Pponma
Hiroaki Shoji
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 JP1857085A priority Critical patent/JPS61180001A/ja
Priority to US06/825,603 priority patent/US4718329A/en
Priority to DE8686101369T priority patent/DE3660226D1/de
Priority to EP86101369A priority patent/EP0190703B1/de
Publication of JPS61180001A publication Critical patent/JPS61180001A/ja
Publication of JPH0514121B2 publication Critical patent/JPH0514121B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • E02F9/2207—Arrangements for controlling the attitude of actuators, e.g. speed, floating function for reducing or compensating oscillations
    • 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
    • E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
    • 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
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
    • E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
JP1857085A 1985-02-04 1985-02-04 油圧回路の制御装置 Granted JPS61180001A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1857085A JPS61180001A (ja) 1985-02-04 1985-02-04 油圧回路の制御装置
US06/825,603 US4718329A (en) 1985-02-04 1986-02-03 Control system for hydraulic circuit
DE8686101369T DE3660226D1 (en) 1985-02-04 1986-02-03 Control system for hydraulic circuit
EP86101369A EP0190703B1 (de) 1985-02-04 1986-02-03 Steuersystem für einen hydraulischen Kreislauf

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1857085A JPS61180001A (ja) 1985-02-04 1985-02-04 油圧回路の制御装置

Publications (2)

Publication Number Publication Date
JPS61180001A JPS61180001A (ja) 1986-08-12
JPH0514121B2 true JPH0514121B2 (de) 1993-02-24

Family

ID=11975279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1857085A Granted JPS61180001A (ja) 1985-02-04 1985-02-04 油圧回路の制御装置

Country Status (1)

Country Link
JP (1) JPS61180001A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5112330A (en) * 1988-09-16 1992-05-12 Olympus Optical Co., Ltd. Resectoscope apparatus
JP2007239968A (ja) * 2006-03-13 2007-09-20 Toyota Industries Corp シリンダ制御装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154505A (en) * 1981-03-13 1982-09-24 Mitsubishi Heavy Ind Ltd Hydraulic system
JPS58193909A (ja) * 1982-04-08 1983-11-11 Hitachi Constr Mach Co Ltd 油圧回路の制御装置
JPS5937307A (ja) * 1982-08-25 1984-02-29 Hitachi Constr Mach Co Ltd 油圧回路の制御装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154505A (en) * 1981-03-13 1982-09-24 Mitsubishi Heavy Ind Ltd Hydraulic system
JPS58193909A (ja) * 1982-04-08 1983-11-11 Hitachi Constr Mach Co Ltd 油圧回路の制御装置
JPS5937307A (ja) * 1982-08-25 1984-02-29 Hitachi Constr Mach Co Ltd 油圧回路の制御装置

Also Published As

Publication number Publication date
JPS61180001A (ja) 1986-08-12

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