JP2005299917A - 重装備用操作レバーの中立状態における流量補償方法 - Google Patents
重装備用操作レバーの中立状態における流量補償方法 Download PDFInfo
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- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/06—Lids or covers for cooking-vessels
- A47J36/12—Devices for holding lids in open position on the container
-
- 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
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- 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
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
-
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
-
- 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
- F15B2211/20507—Type of prime mover
- F15B2211/20523—Internal combustion engine
-
- 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
- F15B2211/30—Directional control
- F15B2211/31—Directional control characterised by the positions of the valve element
- F15B2211/3105—Neutral or centre positions
- F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
-
- 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
- F15B2211/40—Flow control
- F15B2211/42—Flow control characterised by the type of actuation
- F15B2211/426—Flow 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
- F15B2211/633—Electronic controllers using input signals representing a state of the prime mover, e.g. torque or rotational speed
-
- 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
- F15B2211/6346—Electronic controllers using input signals representing a state of input means, e.g. joystick position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S220/00—Receptacles
- Y10S220/912—Cookware, i.e. pots and pans
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Fluid-Pressure Circuits (AREA)
- Operation Control Of Excavators (AREA)
Abstract
【解決手段】 操作レバーの操作量によって要求される流量と、エンジン回転数によって要求される流量とを設定するステップと、操作レバーが中立にある場合に油圧ポンプから最小流量が吐出されるよう油圧ポンプの押しのけ容積を制御するステップと、操作レバーが中立状態にないかつ操作レバー要求流量よりエンジン回転数補償流量が大きい場合、エンジン回転数補償要求流量が吐出されるよう油圧ポンプを制御するステップと、操作レバーが中立状態にないかつ操作レバー要求流量がエンジン回転数補償要求流量より大きい場合、操作レバーの操作量に対応する流量が吐出されるよう油圧ポンプを制御するステップとを含む。
【選択図】 図1
Description
Q=RPM×q(q; 油圧ポンプ20の押しのけ容積を意味する)
作業モードごとに油圧ポンプの吐出流量を予め設定しておいて、エンジン回転数が相異した場合にも、操作レバーの操作量に応じてアクチュエータが同様に駆動できるようにして、操作性を向上させることができる。
また、操作レバーの中立時、油圧ポンプ吐出流量を最小化させ、省エネルギー化を図ることもできる。
20 油圧ポンプ
40 アクチュエータ
50 制御弁
60 操作レバー
70 操作量検出手段
80 エンジン回転数検出手段
90 制御器
100 レギュレータ
Claims (3)
- エンジンに連結される油圧ポンプ、該油圧ポンプに連結され作業装置を駆動させるアクチュエータと、前記油圧ポンプと前記アクチュエータとの間の流路に設けられる制御弁、運転者により操作されかつ作業装置を駆動させる操作信号を発生させる操作レバー、前記操作レバーの操作量を検出する手段及び前記エンジン回転数を検出する手段、前記操作レバーの操作量による操作信号と前記エンジン回転数の検出信号とによって前記制御弁を制御する制御器を備える重装備操作レバーの中立状態における流量補償方法であって;
前記操作レバーの操作量によって要求される流量と、前記エンジン回転数によって要求される流量とを設定するステップ;
前記操作レバー要求流量と前記エンジン回転数補償要求流量との差により中立補償区間であるか否かを判断するステップ;
前記操作レバー要求流量より前記エンジン回転数補償要求流量が大きい場合、前記エンジン回転数補償要求量が吐出されるよう前記油圧ポンプを制御するステップ;及び
前記操作レバー要求流量が前記エンジン回転数補償要求流量より大きい場合、前記操作レバー操作量に対応される流量が吐出されるよう前記油圧ポンプを制御するステップを含むことを特徴とする重装備用操作レバーの中立状態における流量補償方法。 - エンジンに連結される油圧ポンプ、該油圧ポンプに連結されかつ作業装置を駆動させるアクチュエータ、前記油圧ポンプと前記アクチュエータとの間の流路に設けられる制御弁、運転者により操作されかつ作業装置を駆動させる操作信号を発生させる操作レバー、前記操作レバーの操作量を検出する手段及びエンジン回転数を検出する手段、前記操作レバーの操作量による操作信号と前記エンジン回転数の検出信号とによって前記制御弁を制御する制御器を備える重装備操作レバーの中立状態における流量補償方法であって:
前記操作レバーの操作量によって要求される流量と、前記エンジン回転数によって要求される流量を設定するステップ;
前記操作信号により操作レバーの中立状態を判断するが、前記操作レバーが中立状態にある場合に、前記油圧ポンプから最小流量が吐出されるよう前記油圧ポンプ20の押しのけ容積を制御するステップ;
前記操作レバーが中立状態におかれていない、かつ前記操作レバー要求流量より前記エンジン回転数補償要求流量が大きい場合、エンジン回転数補償要求流量が吐出されるよう前記油圧ポンプを制御するステップ;及び
前記操作レバーが中立状態におかれていない、かつ前記操作レバー要求流量が前記エンジン回転数補償要求流量より大きい場合、前記操作レバーの操作量に対応する流量が吐出されるよう前記油圧ポンプを制御するステップを含むことを特徴とする重装備用操作レバーの中立状態における流量補償方法。 - 前記操作レバーとしては、電気式又は油圧式操作レバーが用いられることを特徴とする請求項1または2に記載の重装備用操作レバーの中立状態における流量補償方法。
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KR1020040024047A KR100621981B1 (ko) | 2004-04-08 | 2004-04-08 | 중장비용 조이스틱 중립상태에서의 유량 보상방법 |
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JP2004271473A Pending JP2005299917A (ja) | 2004-04-08 | 2004-09-17 | 重装備用操作レバーの中立状態における流量補償方法 |
Country Status (5)
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US (1) | US7269945B2 (ja) |
EP (1) | EP1584755B1 (ja) |
JP (1) | JP2005299917A (ja) |
KR (1) | KR100621981B1 (ja) |
CN (1) | CN100362174C (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2014098370A (ja) * | 2012-11-15 | 2014-05-29 | Takeuchi Seisakusho:Kk | 油圧駆動装置 |
Families Citing this family (7)
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KR100727625B1 (ko) * | 2005-12-31 | 2007-06-13 | 화남전자 주식회사 | 로터리 인코더를 이용한 엔진 회전수 제어 회로 및 그 방법 |
US9234582B2 (en) * | 2009-10-21 | 2016-01-12 | Thomson Linear Llc | Apparatus and methods for controlling hydraulically-powered apparatus |
CN104024535B (zh) * | 2011-12-21 | 2016-07-27 | 沃尔沃建造设备有限公司 | 用于设置施工设备操控度的装置 |
JP6006666B2 (ja) * | 2013-03-28 | 2016-10-12 | 株式会社神戸製鋼所 | 油圧ショベル |
US10208458B2 (en) | 2014-12-10 | 2019-02-19 | Volvo Construction Equipment Ab | Method for compensating for flow rate of hydraulic pump of construction machine |
KR102478297B1 (ko) * | 2016-01-07 | 2022-12-16 | 현대두산인프라코어(주) | 건설기계의 제어장치 및 제어방법 |
EP3299638B1 (en) * | 2016-09-23 | 2019-04-10 | Goodrich Actuation Systems SAS | Valve for electrohydrostatic actuator |
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US5447027A (en) * | 1993-03-23 | 1995-09-05 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system for hydraulic working machines |
JP3549989B2 (ja) | 1996-12-10 | 2004-08-04 | 日立建機株式会社 | 油圧作業機の油圧回路装置 |
JP3587957B2 (ja) * | 1997-06-12 | 2004-11-10 | 日立建機株式会社 | 建設機械のエンジン制御装置 |
US6305162B1 (en) * | 1999-03-31 | 2001-10-23 | Caterpillar Inc. | Method and apparatus for controlling the deadband of a fluid system |
US6173572B1 (en) * | 1999-09-23 | 2001-01-16 | Caterpillar Inc. | Method and apparatus for controlling a bypass valve of a fluid circuit |
US7007466B2 (en) * | 2001-12-21 | 2006-03-07 | Caterpillar Inc. | System and method for controlling hydraulic flow |
-
2004
- 2004-04-08 KR KR1020040024047A patent/KR100621981B1/ko active IP Right Grant
- 2004-09-09 US US10/937,474 patent/US7269945B2/en active Active
- 2004-09-17 JP JP2004271473A patent/JP2005299917A/ja active Pending
- 2004-10-14 EP EP04024485.7A patent/EP1584755B1/en active Active
- 2004-10-29 CN CNB2004100901555A patent/CN100362174C/zh active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014098370A (ja) * | 2012-11-15 | 2014-05-29 | Takeuchi Seisakusho:Kk | 油圧駆動装置 |
Also Published As
Publication number | Publication date |
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CN100362174C (zh) | 2008-01-16 |
KR20050098616A (ko) | 2005-10-12 |
EP1584755A1 (en) | 2005-10-12 |
CN1680665A (zh) | 2005-10-12 |
US20050226732A1 (en) | 2005-10-13 |
KR100621981B1 (ko) | 2006-09-14 |
EP1584755B1 (en) | 2016-12-07 |
US7269945B2 (en) | 2007-09-18 |
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