KR840000747A - 유압회로 장치의 제어시스템 - Google Patents

유압회로 장치의 제어시스템 Download PDF

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Publication number
KR840000747A
KR840000747A KR1019820003322A KR820003322A KR840000747A KR 840000747 A KR840000747 A KR 840000747A KR 1019820003322 A KR1019820003322 A KR 1019820003322A KR 820003322 A KR820003322 A KR 820003322A KR 840000747 A KR840000747 A KR 840000747A
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South Korea
Prior art keywords
discharge amount
pump
determining
target discharge
actuator
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KR1019820003322A
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English (en)
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KR860000756B1 (ko
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히로시(외4) 와따나베
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니시모도 후미히라(西元文平)
히다찌겡끼 가부시기 가이샤
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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
    • 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
    • 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
    • E02F9/2296—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
    • 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
    • F15B2211/60—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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (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

유압회로 장치의 제어시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 유압펌프의 토출량, 토출방향으로 작동기의 속도, 구동방향을 제어하는 유압회로 장치와 그 제어시스템을 나타내는 개략도,
제2도는 종래의 제어시스템의 개략도

Claims (7)

  1. 최소한 제1 및 제2의 가변토출용량 유압펌프와, 상기 펌프에 의하여 구동되는 적어도 제1 및 제2의 작동기와, 펌프와 작동기 사이의 유압결합을 제어하는 밸브 수단등을 갖는 유압회로 장치의 제어시스템에 있어서, 상기 제 1의 작동기(4)와 상기 제1 및 제2의 펌프(1),(10) 사이의 유압 결합의 우선순위 및 상기 제2의 펌프(10)와 상기 제1 및 제2의 작동기(4),(40) 사이의 유압결합의 우선 순위를 결정하는 수단과, 상기 제1의 펌프(1)의 토출량이 최대로 된 것을 검출하는 제1의 검출수단과, 상기 제2의 펌프(10)의 토출량이 실질적으로 영으로 된 것을 검출하는 제2의 검출수단과, 최소한 상기 우선순위 결정수단 및 제1 및 제2의 검출수단으로 부터의 정보에 의거하여 제1 및 제2의 펌프(1),(10)의 목표 토출량을 결정하는 수단등을 가지며, 상기 제1의 작동기(4)에 공급되는 압유유량을 증가시킬 때에는 제1의 펌프(1)의 토출량이 최대로 된 후에 제2의 펌프(10)의 토출량을 실질적으로 영에서 증가시키고, 제1의 작동기(4)에 공급되는 압유 유량을 감소시킬 때에는 제2의 펌프(10)의 토출량이 실질적으로 영으로 된 후에 제1의 펌프(1)의 토출량을 감소시키도록 되어 있는 제어시스템.
  2. 제1항에 있어서, 상기 우선순위 결정수단은 제1의 작동기(4)의 작동을 지시하는 제1의 조작신호가 소정의 값보다 큰지의 여부를 판정하는 수단과, 제2의 작동기(40)의 작동을 지시하는 제2의 조작신호가 실질적으로 영인지의 여부를 판정하는 수단 등을 가지는 제어시스템.
  3. 제1항에 있어서, 상기 목표토출량 결정수단이 제1의 작동기(4)의 작동은 지시하는 제1의 조작신호에 의거하여 제1의 펌프(1)의 목표토출량을 결정하는 제1의 수단과, 제1의 조작신호에 의거하여 제2의 펌프(10)의 목표토출량을 결정하는 제2의 수단과, 제2의 작동기(40)의 작동을 지시하는 제2의 조작신호에 의거하여 제2의 펌프(40)의 목표토출량을 결정하는 제3의 수단과, 상기 제1의 펌프(1)의 토출량이 최대인 한편 제2의 조작신호가 실질적으로 영일때에 제2의 펌프(10)의 목표토출량으로서 제2의 수단으로 결정된 목표 토출량을 선택하는 수단등을 가지는 제어시스템.
  4. 제3항에 있어서, 상기 목표토출량 결정수단이, 상기 제2의 조작신호가 실질적으로 영이 아닐때에는 제2의 펌프(10)의 목표 토출량으로서 상기 제3수단으로 결정된 목표토출량을 선택하는 수단을 가지는 제어시스템.
  5. 제1항~제4항 중 어느 1항에 있어서, 상기 우선순위 판정수단 및 제2의 검출수단의 정보에 의거하여 밸브수단의 절환 타이밍을 결정하는 수단을 가지는 제어시스템.
  6. 제1항~제4항중 어느 1항에 있어서, 상기 목표토출량 결정수단의 정보에 의거하여 제1 및 제2의 펌프(1),(10)의 토출량 변화속도가 소정의 값을 초과하지 않도록 그 변화속도를 결정하는 수단을 가지는 제어시스템.
  7. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8203322A 1981-07-24 1982-07-24 유압회로 장치의 제어시스템 KR860000756B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP115311 1981-07-24
JP56115311A JPS5817202A (ja) 1981-07-24 1981-07-24 油圧回路の制御方法

Publications (2)

Publication Number Publication Date
KR840000747A true KR840000747A (ko) 1984-02-27
KR860000756B1 KR860000756B1 (ko) 1986-06-18

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Country Status (5)

Country Link
US (1) US4586330A (ko)
EP (1) EP0071228B1 (ko)
JP (1) JPS5817202A (ko)
KR (1) KR860000756B1 (ko)
DE (1) DE3276254D1 (ko)

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KR860000756B1 (ko) 1986-06-18
EP0071228A3 (en) 1984-09-05
JPS6342122B2 (ko) 1988-08-22
US4586330A (en) 1986-05-06
JPS5817202A (ja) 1983-02-01
EP0071228B1 (en) 1987-05-06
DE3276254D1 (en) 1987-06-11
EP0071228A2 (en) 1983-02-09

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