KR840001723A - 유압회로장치의 제어시스템 - Google Patents

유압회로장치의 제어시스템 Download PDF

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Publication number
KR840001723A
KR840001723A KR1019820004441A KR820004441A KR840001723A KR 840001723 A KR840001723 A KR 840001723A KR 1019820004441 A KR1019820004441 A KR 1019820004441A KR 820004441 A KR820004441 A KR 820004441A KR 840001723 A KR840001723 A KR 840001723A
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South Korea
Prior art keywords
pump
actuator
discharge amount
pumps
hydraulically coupled
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KR1019820004441A
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English (en)
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KR860001715B1 (ko
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히로시(외 4) 와따나베
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니시모도 후미히라
히다찌겡끼 가부시기 가이샤
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Publication of KR840001723A publication Critical patent/KR840001723A/ko
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Classifications

    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • 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
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E02F9/2242—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance including an electronic controller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • 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
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • 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
    • 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
    • E02F9/2292—Systems with two or more 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
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • 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
    • F15B2211/20546—Type of pump variable 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
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20561—Type of pump reversible
    • 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
    • F15B2211/27—Directional control by means of the pressure source
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/3059—Assemblies of multiple valves having multiple valves for multiple output members
    • F15B2211/30595—Assemblies of multiple valves having multiple valves for multiple output members with additional valves between the groups of valves for multiple output members
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/6333—Electronic controllers using input signals representing a state of the pressure source, e.g. swash plate angle
    • 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
    • F15B2211/6652—Control of the pressure source, e.g. control of the swash plate angle
    • 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
    • F15B2211/6654—Flow rate control
    • 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
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/71—Multiple output members, e.g. multiple hydraulic motors or cylinders

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

내용 없음

Description

유압회로장치의 제어시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 유압펌프의 토출량, 토출방향으로 작동기의 속도, 구동방향을 제어하는 유압회로장치와 그 제어시스템을 나타낸 개략도,
제4도는 본 발명의 제어시스템의 1실시예를 나타낸 개략도,
제5도는 본 발명의 제어시스템의 동작을 나타낸 타임챠트.

Claims (5)

  1. 최소한 제1 및 제2의 가변용량형의 유압펌프와, 상기 제1의 펌프와 제1의 밸브수단을 거쳐 유압결합하여 그것에 의해 구동되는 제1의 유압작동기와, 상기 제1 및 제2의 펌프에 각각 제2 및 제3의 밸브수단을 거쳐 선택적으로 유압 결합하여 그것에 의해 구동되는 제2의 유압작동기 등을 갖는 유압회로장치의 제어시스템으로서, 상기 제2의 작동기에 대한 조작신호가 들어왔을 때 제1의 펌프가 사용되고 있지 않을 때는 제1의 펌프가 제2의 펌프에 우선하여 제1의 작동기에 유압결합하고, 제1의 펌프가 제2의 작동기에 유압결합하고 있을 때는 제1의 작동기에 대한 조작신호가 들어오면 제1의 작동기가 제2의 작동기에 우선하여 유압결합되는 한편 제2의 작동기는 제2의 펌프에 유압 결합되도록 유압 결합의 우선 순위가 미리 설정되고 있는 한편 상기 제1의 펌프의 유압결합이 제2의 작동기로부터 제1의 작동기로 변할 때에는 제1의 펌프의 토출량을 일단 "0"으로 복귀시킨 후 그것을 행하도록 제1의 펌프의 토출량과 제1의 밸브수단의 절환이 제어되도록 된 제어시스템에 있어서, 상기 제1의 작동기에 대한 조작신호가 들어왔을 때 제1의 펌프가 제2의 작동기에 유압결합되어 있는지의 여부를 판정하여 제1의 펌프가 제2의 작동기에 유압결합되어 있을 때에는 제1의 펌프의 토출량이 "0"으로 복귀하기 시작하면 동시에 제2의 작동기로서의 유입량의 감소를 백업하는 것을 지시하는 제1의 수단과, 상기 백업 지시에 따라 제3의 밸브수단을 개 위치로 절환하는 것을 지시하는 제2의 수단과, 백업 지시에 따라 제2의 펌프의 토출을 개시시키는 것을 지시하는 제3의 수단 등을 갖는 제어시스템.
  2. 제1항에 있어서, 백업의 지시에 따라 제1의 펌펌의 토출량이 "0"으로 복귀할 때의 토출량 변화비율의 절대값과 제2의 펌프가 토출을 개시한 후의 토출량 변화비율의 절대값을 실질적으로 동일하게 하고, 또 이들 펌프의 통상 작동시에 있어서의 토출량의 최대변화 비율보다도 큰 것으로 하는 것을 지시하는 제4의 수단을 갖는 제어시스템.
  3. 제1항에 있어서, 상기 제3의 수단은 제2의 작동기에 대한 조작신호에 의거하여 제1 및 제2의 펌프의 목표 토출량을 결정하는 수단과, 상기 백업의 지시가 없을 때에는 목표토출량을 제1의 펌프의 것으로 선택하는 수단과, 백업의 지시가 있을 때에는 제1의 펌프의 목표토출량으로서 "0"을 선택하면 동시에 상기 결정수단의 목표 토출량을 제2의 펌프의 것으로서 선택하는 수단 등을 갖는 제어시스템.
  4. 제2항에 있어서, 상기 제4의 수단은 각각 제1 및 제2의 펌프의 통상 작동시에 있어서의 토출량의 최대변화비율을 미리 설정한 제1 및 제2의 수단과, 상기 최대변화 비율보다도 큰 백업 작동시의 토출량 변화 비율을 미리 설정한 제3의 수단과, 상기 백업의 지시가 있을 때에 제1 및 제2의 펌프의 최대토출량 변화 비율로서 각각 제3의 수단의 설정값을 선택하는 수단과, 상기 선택된 설정값의 어느 일방을 부(負)의 값으로 반전시키는 수단 등을 갖는 제어시스템.
  5. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8204441A 1981-10-02 1982-09-30 유압회로장치의 제어시스템 KR860001715B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56156176A JPS5857504A (ja) 1981-10-02 1981-10-02 油圧回路の制御方法
JP156176 1981-10-02

Publications (2)

Publication Number Publication Date
KR840001723A true KR840001723A (ko) 1984-05-16
KR860001715B1 KR860001715B1 (ko) 1986-10-18

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KR8204441A KR860001715B1 (ko) 1981-10-02 1982-09-30 유압회로장치의 제어시스템

Country Status (5)

Country Link
US (1) US4561249A (ko)
EP (1) EP0076485B1 (ko)
JP (1) JPS5857504A (ko)
KR (1) KR860001715B1 (ko)
DE (1) DE3268852D1 (ko)

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JPS5857504A (ja) 1983-04-05
EP0076485A1 (en) 1983-04-13
EP0076485B1 (en) 1986-01-29
KR860001715B1 (ko) 1986-10-18
JPS6319724B2 (ko) 1988-04-25
US4561249A (en) 1985-12-31
DE3268852D1 (en) 1986-03-13

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