KR920704014A - 건설기계의 유압펌프제어장치 - Google Patents

건설기계의 유압펌프제어장치

Info

Publication number
KR920704014A
KR920704014A KR1019920700147A KR920700147A KR920704014A KR 920704014 A KR920704014 A KR 920704014A KR 1019920700147 A KR1019920700147 A KR 1019920700147A KR 920700147 A KR920700147 A KR 920700147A KR 920704014 A KR920704014 A KR 920704014A
Authority
KR
South Korea
Prior art keywords
horsepower
hydraulic pump
hydraulic
discharge capacity
construction machine
Prior art date
Application number
KR1019920700147A
Other languages
English (en)
Other versions
KR0148560B1 (ko
Inventor
유끼오 모리야
시게루 기노시따
다꾸미 오노다
도시오 요꼬야마
Original Assignee
가따다 데쯔야
가부시끼가이샤 고마쯔 세이사꾸쇼
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 가따다 데쯔야, 가부시끼가이샤 고마쯔 세이사꾸쇼 filed Critical 가따다 데쯔야
Publication of KR920704014A publication Critical patent/KR920704014A/ko
Application granted granted Critical
Publication of KR0148560B1 publication Critical patent/KR0148560B1/ko

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
    • 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
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E02F9/2235—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps including an electronic controller
    • 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
    • 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
    • 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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet
    • 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
    • F04B2207/00—External parameters
    • F04B2207/04—Settings
    • F04B2207/041—Settings of flow

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Operation Control Of Excavators (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

내용 없음.

Description

건설기계의 유압펌프제어장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 관한 유압펌프제어장치의 한 실시예를 나타낸 개념도,
제2도는 경사판제어부의 구성을 예시한 블록도.

Claims (6)

  1. 엔진으로 구동되는, 제1, 제2의 유압펌프와, 제1, 제2의 조작밸브를 거쳐 상기 제1, 제2의 유입펌프에 각각 접속된 유압액튜에이터를 가진 건설기계에 적용되고, 상기 엔진의 회전수(N)를 검출하는 회전수검출장치와, 상기 제1, 제2의 유압펌프의 토출압력(P1), (P2)을 각각 검출하는 압력검출장치와, 상기 제1, 제2의 유압펌프에 대한 기준허용흡수마력을 각각 미리 설정하는 마력설정장치와, 상기 제1, 제2의 조작밸브의 조작량에 대응한 목표토출용량(V1L), (V2L)을 각각 지령하는 목표토출용량지령장치와, 상기 제1, 제2의 유압펌프의 실제흡수마력(HPO1). (HPO2)을 각각 연산하는 흡수마력연산장치와, 상기 기준허용흡수마력 및 실제흡수마력(HPO1), (HPO2)에 따라 상기 제1, 제2의 유압펌프로 흡수되지 않는 잉여마력(△HP2)(△HP2)을 각각 연산하는 잉여마력연산장치와, 상기 엔진의 회전수(N), 토출압력(P1),( P2), 상기 잉여마력 (△HP2), (△HP2) 및 상기 제1, 제2의 유압펌프에 대한 기준허용흡수마력에 따라 허용토출용량(V1P), (V2P)을 연산하는 장치와 상기 목표토출용량(V1L)과 허용토출용량(V1P)중 적은 쪽 및 상기 목표토출용량(V2L)과 허용토출용량(V2P)중 적은 쪽을 각각 최소 목표토출용량(V1), (V2)으로 각각 선택하는 장치와, 상기 제1, 제2의 유압펌프의 토출용량이 상기 토출용량(V1), (V2)이 되도록 상기 유압펌프의 경사판 각을 각각 제어하는 경사판 제어장치를 구비한 것을 특징으로 하는 건설기계의 유압펌프제어장치.
  2. 제1항에 있어서, 상기 마력설정장치는 상기 제1, 제2의 유압펌프에 대한 기준허용흡수마력을 상기 엔진의 정격마력의 1/2로 각각 설정한 것을 특징으로 하는 건설기계의 유압핌프제어장치.
  3. 제1항에 있어서, 상기 마력설정장치는 상기 기준허용흡수마력을 변화시키는 기능을 가지고 있는 것을 특징으로 하는 건설기계의 유압펌프제어장치.
  4. 제1항에 있어서, 상기 흡수마력연상장치는 상기 엔진의 회전수(N)와, 토출압력(P1), (P2)과, 목표토출용량(V1L), (V2L)에 따라 실제흡수마력(HPO1), (HPO2)을 각각 연산하는 것을 특징으로 하는 건설기계의 유압펌프제어장치.
  5. 제1항에 있어서, 상기 제1, 제2의 조작밸브가 각각 복수로 설치되는 경우에 상기 목표토출용량(V1L) 및(V2L)는 상기 복수의 제1조작밸브의 각 조작량 합 및 상기 복수의 제2조작밸브의 각 조작량 합에 따라 각각 설정되는 것을 특징으로 하는 건설기계의 유압펌프제어장치.
  6. 제1항에 있어서, 상기 제1, 제2의 유압펌프에 대한 기준허용흡수 마력을 서로 다르게한 것을 특징으로 하는 건설기계의 유압펌프제어장치.
    ※참고사항:최초출원 내용에 의하여 공개하는 것임.
KR1019920700147A 1989-07-27 1990-07-27 건설기계의 유압펌프제어장치 KR0148560B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP195,276 1989-07-27
JP1195276A JPH0826552B2 (ja) 1989-07-27 1989-07-27 建設機械のポンプ吐出量制御システム
PCT/JP1990/000964 WO1991002162A1 (en) 1989-07-27 1990-07-27 Hydraulic pump control device for construction machinery

Publications (2)

Publication Number Publication Date
KR920704014A true KR920704014A (ko) 1992-12-19
KR0148560B1 KR0148560B1 (ko) 1999-03-20

Family

ID=16338469

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920700147A KR0148560B1 (ko) 1989-07-27 1990-07-27 건설기계의 유압펌프제어장치

Country Status (6)

Country Link
US (1) US5176504A (ko)
EP (1) EP0667451B1 (ko)
JP (1) JPH0826552B2 (ko)
KR (1) KR0148560B1 (ko)
DE (1) DE69031475T2 (ko)
WO (1) WO1991002162A1 (ko)

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Also Published As

Publication number Publication date
KR0148560B1 (ko) 1999-03-20
EP0667451B1 (en) 1997-09-17
US5176504A (en) 1993-01-05
DE69031475T2 (de) 1998-04-23
DE69031475D1 (de) 1997-10-23
WO1991002162A1 (en) 1991-02-21
JPH0359227A (ja) 1991-03-14
EP0667451A4 (en) 1993-12-14
EP0667451A1 (en) 1995-08-16
JPH0826552B2 (ja) 1996-03-13

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