JP6970533B2 - 油圧システム - Google Patents
油圧システム Download PDFInfo
- Publication number
- JP6970533B2 JP6970533B2 JP2017118567A JP2017118567A JP6970533B2 JP 6970533 B2 JP6970533 B2 JP 6970533B2 JP 2017118567 A JP2017118567 A JP 2017118567A JP 2017118567 A JP2017118567 A JP 2017118567A JP 6970533 B2 JP6970533 B2 JP 6970533B2
- Authority
- JP
- Japan
- Prior art keywords
- pump
- control line
- horsepower control
- flow rate
- horsepower
- Prior art date
- Legal status (The legal status 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 status listed.)
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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
- F04B49/06—Control using electricity
-
- 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
- F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
- F15B11/0423—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling pump output or bypass, other than to maintain constant speed
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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
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- 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
- 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
- F04B49/08—Regulating by delivery pressure
-
- 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
-
- 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
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/045—Compensating for variations in viscosity or temperature
-
- 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
- E02F9/2285—Pilot-operated systems
-
- 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
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6309—Electronic controllers using input signals representing a pressure the pressure being a pressure source supply pressure
-
- 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
- F15B2211/6306—Electronic controllers using input signals representing a pressure
- F15B2211/6316—Electronic controllers using input signals representing a pressure the pressure being a pilot pressure
-
- 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
- F15B2211/6343—Electronic controllers using input signals representing a temperature
-
- 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
-
- 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
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/86—Control during or prevention of abnormal conditions
- F15B2211/8613—Control during or prevention of abnormal conditions the abnormal condition being oscillations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Operation Control Of Excavators (AREA)
Description
本発明は上述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変形が可能である。
2 ポンプ
3 レギュレータ
4 制御弁
5 油圧アクチュエータ
6 操作装置
61 操作部
7 制御装置
8,9 圧力センサ
Claims (2)
- 操作部に対する操作量に応じた操作信号を出力する操作装置と、
可変容量型のポンプと、
前記ポンプの傾転角を調整するレギュレータと、
前記ポンプの吐出圧を検出する圧力センサと、
前記ポンプの吐出流量が、前記操作装置から出力される操作信号に応じた操作要求流量と、前記圧力センサで検出される前記ポンプの吐出圧に応じた馬力制御流量のうちの小さい方となるように、前記レギュレータを制御する制御装置と、を備え、
前記制御装置には、前記ポンプの吐出圧と前記馬力制御流量との関係を規定する第1馬力制御線と、これよりも低い第2馬力制御線が格納されており、
前記制御装置は、前記操作装置から出力される操作信号が増加した場合、前記圧力センサで検出されるポンプの吐出圧と前記ポンプの吐出流量とで定まる作動点が前記第1馬力制御線を超えるまでは前記ポンプの傾転角を前記操作要求流量に対応する傾転角とし、前記作動点が前記第1馬力制御線を越えたときは前記ポンプの傾転角を前記第1馬力制御線により定まる傾転角になるまで減少させ、前記作動点が前記第2馬力制御線を下回ったときは前記ポンプの傾転角を前記第2馬力制御線により定まる傾転角になるまで増加させ、前記第1馬力制御線を越えた前記作動点が前記第1馬力制御線と前記第2馬力制御線の間にシフトしたとき、または前記第2馬力制御線を下回った前記作動点が前記第1馬力制御線と前記第2馬力制御線の間にシフトしたときは、前記ポンプの傾転角を維持する、油圧システム。
- 前記制御装置は、前記操作装置から出力される操作信号が増加した場合であって、前記操作装置から出力される操作信号に応じた操作要求流量が前記圧力センサで検出される前記ポンプの吐出圧に応じた馬力制御流量よりも大きな場合でも、作動油の温度が所定値よりも低いときは、前記第2馬力制御線を使用せずに前記第1馬力制御線を使用して前記ポンプの傾転角を減少または増加させる、請求項1に記載の油圧システム。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017118567A JP6970533B2 (ja) | 2017-06-16 | 2017-06-16 | 油圧システム |
US16/619,007 US11041515B1 (en) | 2017-06-16 | 2018-06-14 | Hydraulic system |
GB2000659.9A GB2578554B (en) | 2017-06-16 | 2018-06-14 | Hydraulic system |
CN201880034891.9A CN110651123B (zh) | 2017-06-16 | 2018-06-14 | 油压系统 |
PCT/JP2018/022720 WO2018230639A1 (ja) | 2017-06-16 | 2018-06-14 | 油圧システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017118567A JP6970533B2 (ja) | 2017-06-16 | 2017-06-16 | 油圧システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019002217A JP2019002217A (ja) | 2019-01-10 |
JP6970533B2 true JP6970533B2 (ja) | 2021-11-24 |
Family
ID=64658638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017118567A Active JP6970533B2 (ja) | 2017-06-16 | 2017-06-16 | 油圧システム |
Country Status (5)
Country | Link |
---|---|
US (1) | US11041515B1 (ja) |
JP (1) | JP6970533B2 (ja) |
CN (1) | CN110651123B (ja) |
GB (1) | GB2578554B (ja) |
WO (1) | WO2018230639A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2023131855A (ja) * | 2022-03-10 | 2023-09-22 | 川崎重工業株式会社 | コントローラおよびキャリブレーションシステム |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR930010906B1 (ko) * | 1989-12-14 | 1993-11-17 | 니뽄 에어브레이크 가부시끼가이샤 | 유압 모터의 제어 회로 |
JPH0777168A (ja) * | 1993-09-07 | 1995-03-20 | Hitachi Constr Mach Co Ltd | ポンプ制御装置 |
JP3192054B2 (ja) * | 1994-10-26 | 2001-07-23 | 日立建機株式会社 | 油圧ポンプの傾転角制御装置 |
US5758499A (en) * | 1995-03-03 | 1998-06-02 | Hitachi Construction Machinery Co., Ltd. | Hydraulic control system |
JPH09242707A (ja) * | 1996-03-05 | 1997-09-16 | Kayaba Ind Co Ltd | ロードセンシングシステム |
JPH09287173A (ja) * | 1996-04-22 | 1997-11-04 | Sumitomo Constr Mach Co Ltd | 建設機械の油圧回路に於ける圧力ハンチング減衰制御装置 |
JP4272485B2 (ja) * | 2003-08-28 | 2009-06-03 | 日立建機株式会社 | 建設機械のエンジンラグダウン抑制装置 |
JP4413122B2 (ja) * | 2004-10-13 | 2010-02-10 | 日立建機株式会社 | 油圧建設機械の制御装置 |
US8322481B2 (en) * | 2006-12-28 | 2012-12-04 | Hitachi Construction Machinery Co., Ltd. | Traveling control apparatus for hydraulic traveling vehicle |
JP5084295B2 (ja) * | 2007-02-09 | 2012-11-28 | 日立建機株式会社 | 油圧建設機械のポンプトルク制御装置 |
JP5015091B2 (ja) * | 2008-08-14 | 2012-08-29 | 日立建機株式会社 | 油圧作業機械のエンジンラグダウン抑制装置 |
JP5585488B2 (ja) * | 2011-02-17 | 2014-09-10 | コベルコ建機株式会社 | ハイブリッド建設機械の動力源装置 |
JP5736909B2 (ja) * | 2011-03-31 | 2015-06-17 | コベルコ建機株式会社 | 建設機械のポンプ制御装置 |
JP2013002541A (ja) | 2011-06-15 | 2013-01-07 | Hitachi Constr Mach Co Ltd | 建設機械の制御装置 |
JP5831830B2 (ja) * | 2011-08-11 | 2015-12-09 | Kyb株式会社 | 鉄道車両用制振装置 |
JP6335093B2 (ja) * | 2014-10-10 | 2018-05-30 | 川崎重工業株式会社 | 建設機械の油圧駆動システム |
-
2017
- 2017-06-16 JP JP2017118567A patent/JP6970533B2/ja active Active
-
2018
- 2018-06-14 US US16/619,007 patent/US11041515B1/en active Active
- 2018-06-14 GB GB2000659.9A patent/GB2578554B/en active Active
- 2018-06-14 WO PCT/JP2018/022720 patent/WO2018230639A1/ja active Application Filing
- 2018-06-14 CN CN201880034891.9A patent/CN110651123B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2019002217A (ja) | 2019-01-10 |
CN110651123A (zh) | 2020-01-03 |
CN110651123B (zh) | 2021-04-20 |
WO2018230639A1 (ja) | 2018-12-20 |
GB2578554B (en) | 2022-04-27 |
US20210189693A1 (en) | 2021-06-24 |
GB2578554A (en) | 2020-05-13 |
US11041515B1 (en) | 2021-06-22 |
GB202000659D0 (en) | 2020-03-04 |
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