KR20030051244A - 상부 선회식 작업차량 - Google Patents

상부 선회식 작업차량 Download PDF

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Publication number
KR20030051244A
KR20030051244A KR1020020077550A KR20020077550A KR20030051244A KR 20030051244 A KR20030051244 A KR 20030051244A KR 1020020077550 A KR1020020077550 A KR 1020020077550A KR 20020077550 A KR20020077550 A KR 20020077550A KR 20030051244 A KR20030051244 A KR 20030051244A
Authority
KR
South Korea
Prior art keywords
discharge capacity
valve
pump discharge
controller
control
Prior art date
Application number
KR1020020077550A
Other languages
English (en)
Korean (ko)
Inventor
기따지마오사무
나까무라싱이찌
이마이히로시
Original Assignee
가부시키가이샤 고마쓰 세이사쿠쇼
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 가부시키가이샤 고마쓰 세이사쿠쇼 filed Critical 가부시키가이샤 고마쓰 세이사쿠쇼
Publication of KR20030051244A publication Critical patent/KR20030051244A/ko

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
    • 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
    • E02F9/2221—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
    • E02F9/2296—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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine

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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
KR1020020077550A 2001-12-13 2002-12-07 상부 선회식 작업차량 KR20030051244A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001379672A JP3812728B2 (ja) 2001-12-13 2001-12-13 上部旋回式作業車両
JPJP-P-2001-00379672 2001-12-13

Publications (1)

Publication Number Publication Date
KR20030051244A true KR20030051244A (ko) 2003-06-25

Family

ID=19186932

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020020077550A KR20030051244A (ko) 2001-12-13 2002-12-07 상부 선회식 작업차량

Country Status (3)

Country Link
EP (1) EP1319763A1 (ja)
JP (1) JP3812728B2 (ja)
KR (1) KR20030051244A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7596945B2 (en) 2004-08-11 2009-10-06 Komatsu Ltd. Load control device for engine of work vehicle

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1846047B (zh) 2003-09-02 2010-12-01 株式会社小松制作所 发动机控制装置
JP5074086B2 (ja) 2007-04-26 2012-11-14 株式会社小松製作所 建設車両
JP4787336B2 (ja) * 2009-01-22 2011-10-05 株式会社小松製作所 作業車両のエンジンの負荷制御装置
CN102889253A (zh) * 2012-09-20 2013-01-23 三一重工股份有限公司 液压***及工程机械
US9315968B2 (en) 2013-09-17 2016-04-19 Caterpillar Inc. Hydraulic control system for machine
CN113915176B (zh) * 2021-03-23 2023-07-14 上海圣克赛斯液压股份有限公司 用于驱动动力装置的自动控制液压***

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644335B1 (en) * 1993-03-23 2002-09-04 Hitachi Construction Machinery Co., Ltd. Hydraulic drive for hydraulic work machine
JP3305801B2 (ja) * 1993-03-26 2002-07-24 株式会社小松製作所 油圧駆動機械の制御装置
EP0695875B1 (en) * 1993-11-30 2001-06-20 Hitachi Construction Machinery Co., Ltd. Hydraulic pump controller
JP3425844B2 (ja) * 1996-09-30 2003-07-14 コベルコ建機株式会社 油圧ショベル
JPH10141310A (ja) * 1996-11-13 1998-05-26 Komatsu Ltd 圧油供給装置
JP3868112B2 (ja) * 1998-05-22 2007-01-17 株式会社小松製作所 油圧駆動機械の制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7596945B2 (en) 2004-08-11 2009-10-06 Komatsu Ltd. Load control device for engine of work vehicle

Also Published As

Publication number Publication date
JP3812728B2 (ja) 2006-08-23
EP1319763A1 (en) 2003-06-18
JP2003184805A (ja) 2003-07-03

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application