DE68904998T2 - Hydraulisches antriebssystem. - Google Patents
Hydraulisches antriebssystem.Info
- Publication number
- DE68904998T2 DE68904998T2 DE8989201734T DE68904998T DE68904998T2 DE 68904998 T2 DE68904998 T2 DE 68904998T2 DE 8989201734 T DE8989201734 T DE 8989201734T DE 68904998 T DE68904998 T DE 68904998T DE 68904998 T2 DE68904998 T2 DE 68904998T2
- Authority
- DE
- Germany
- Prior art keywords
- drive system
- hydraulic drive
- hydraulic
- drive
- 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.)
- Expired - Lifetime
Links
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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/18—Combined units comprising both motor and 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
- 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
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
- F15B11/055—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive by adjusting the pump output or bypass
-
- 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
- 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
- F15B11/05—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
-
- 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
- F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
-
- 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
- F15B2211/25—Pressure control functions
- F15B2211/253—Pressure margin control, e.g. pump pressure in relation to load 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
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15922188 | 1988-06-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68904998D1 DE68904998D1 (de) | 1993-04-01 |
DE68904998T2 true DE68904998T2 (de) | 1993-08-26 |
Family
ID=15688981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8989201734T Expired - Lifetime DE68904998T2 (de) | 1988-06-29 | 1989-06-28 | Hydraulisches antriebssystem. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5085051A (de) |
EP (1) | EP0349092B1 (de) |
KR (2) | KR920010875B1 (de) |
DE (1) | DE68904998T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013216395B4 (de) | 2013-08-19 | 2019-01-17 | Danfoss Power Solutions a.s. | Steuereinrichtung für hydraulische verstellpumpen und verstellpumpe mit einer steuereinrichtung |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5279122A (en) * | 1989-08-16 | 1994-01-18 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic circuit apparatus for supplying fluid under pressure into hydraulic cylinders for work implement |
JP2520314B2 (ja) * | 1990-01-18 | 1996-07-31 | 株式会社小松製作所 | 油圧掘削機の走行速度切換装置 |
DE4005655C2 (de) * | 1990-02-22 | 1993-10-07 | Hydromatik Gmbh | Vorrichtung zum Verstellen des Verdrängervolumens einer hydrostatischen Maschine |
WO1991013217A1 (en) * | 1990-02-28 | 1991-09-05 | Hitachi Construction Machinery Co., Ltd. | Hydraulic drive system in construction machine |
EP0504415B1 (de) * | 1990-09-28 | 1995-08-23 | Hitachi Construction Machinery Co., Ltd. | Steuerungssystem für hydraulische pumpe |
JP3064574B2 (ja) * | 1991-09-27 | 2000-07-12 | 株式会社小松製作所 | 油圧掘削機における作業油量切換制御装置 |
DE4210252C1 (de) * | 1992-03-28 | 1993-09-02 | O & K Orenstein & Koppel Ag, 13581 Berlin, De | |
WO1994023213A1 (en) * | 1993-03-26 | 1994-10-13 | Kabushiki Kaisha Komatsu Seisakusho | Controller for hydraulic drive machine |
US5560205A (en) * | 1994-12-21 | 1996-10-01 | Caterpillar Inc. | Attenuation of fluid borne noise |
US5758499A (en) * | 1995-03-03 | 1998-06-02 | Hitachi Construction Machinery Co., Ltd. | Hydraulic control system |
JP2701812B2 (ja) * | 1995-10-30 | 1998-01-21 | 石川島播磨重工業株式会社 | 冷水塔の冷却ファン液圧駆動制御装置 |
DE19834955B4 (de) * | 1998-08-03 | 2008-02-07 | Linde Material Handling Gmbh | Hydrostatisches Antriebssystem |
US6874318B1 (en) * | 2003-09-18 | 2005-04-05 | Sauer-Danfoss, Inc. | Automatic remote pressure compensation in an open circuit pump |
US6945335B2 (en) * | 2003-10-06 | 2005-09-20 | Komatsu Ltd. | Oil-pressure controlling device for earthmoving machine |
DE102004061555A1 (de) * | 2004-12-21 | 2006-06-22 | Bosch Rexroth Aktiengesellschaft | Hydraulische Steueranordnung |
DE102008054876A1 (de) | 2008-12-18 | 2010-07-01 | Deere & Company, Moline | Hydrauliksystem |
DE102008054880A1 (de) | 2008-12-18 | 2010-07-01 | Deere & Company, Moline | Hydrauliksystem |
JP5631830B2 (ja) | 2011-09-21 | 2014-11-26 | 住友重機械工業株式会社 | 油圧制御装置及び油圧制御方法 |
JP5956184B2 (ja) * | 2012-02-27 | 2016-07-27 | 株式会社小松製作所 | 油圧駆動システム |
CN102588359B (zh) * | 2012-02-28 | 2014-10-22 | 上海中联重科桩工机械有限公司 | 液压系统、挖掘机及液压系统的控制方法 |
DE102012207422A1 (de) * | 2012-05-04 | 2013-11-07 | Robert Bosch Gmbh | Hydraulische Steueranordnung mit Lastdruckminderungund hydraulischer Ventilblock dafür |
DE102014004337B4 (de) | 2013-03-28 | 2023-04-27 | Aebi Schmidt Deutschland Gmbh | Kommunalfahrzeug sowie Verfahren zur Einstellung von Pumpenausgangsdrücken einer Verstellpumpe |
EP3311034B1 (de) | 2015-06-16 | 2019-11-13 | Volvo Construction Equipment AB | Lastmessendes hydrauliksystem für eine arbeitsmaschine |
JP6747746B2 (ja) | 2016-09-16 | 2020-08-26 | 日立オートモティブシステムズ株式会社 | 可変容量ポンプ及び内燃機関の作動油供給システム |
JP6715216B2 (ja) * | 2017-06-22 | 2020-07-01 | 日立オートモティブシステムズ株式会社 | 可変容量形ポンプ及びその制御方法 |
CN109441906B (zh) * | 2018-12-27 | 2020-05-08 | 上海航天控制技术研究所 | 一种电液比例负载敏感泵及泵阀联合控制伺服系统 |
DE102019219206A1 (de) | 2019-07-26 | 2021-01-28 | Robert Bosch Gmbh | Hydraulische Druckmittelversorgungsanordnung, Verfahren und mobile Arbeitsmaschine |
DE102019212845A1 (de) | 2019-07-26 | 2021-01-28 | Robert Bosch Gmbh | Hydraulische Druckmittelversorgungsanordnung und Verfahren |
DE102019219451A1 (de) | 2019-07-26 | 2021-01-28 | Robert Bosch Gmbh | Hydraulische Druckmittelversorgungsanordnung für eine mobile Arbeitsmaschine und Verfahren |
EP3770428B1 (de) | 2019-07-26 | 2023-04-19 | Robert Bosch GmbH | Hydraulische druckmittelversorgungsanordnung für eine mobile arbeitsmaschine und verfahren |
US11680381B2 (en) | 2021-01-07 | 2023-06-20 | Caterpillar Underground Mining Pty. Ltd. | Variable system pressure based on implement position |
US11661723B1 (en) | 2021-12-28 | 2023-05-30 | Caterpillar Underground Mining Pty. Ltd. | Variable system pressure based on implement position |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2754430A1 (de) * | 1977-12-07 | 1979-06-13 | Bosch Gmbh Robert | Steuereinrichtung fuer mindestens zwei verstellbare pumpen |
US4292805A (en) * | 1979-09-24 | 1981-10-06 | Rexnord Inc. | Servo-valve convertible construction |
US4282898A (en) * | 1979-11-29 | 1981-08-11 | Caterpillar Tractor Co. | Flow metering valve with operator selectable boosted flow |
WO1982001046A1 (en) * | 1980-09-12 | 1982-04-01 | Liesener K | Horsepower consumption control for variable displacement pumps |
US4523430A (en) * | 1981-03-19 | 1985-06-18 | Daikin Kogyo Co., Ltd. | Fluid flow control system |
US4487018A (en) * | 1982-03-11 | 1984-12-11 | Caterpillar Tractor Co. | Compensated fluid flow control |
JPS58174707A (ja) * | 1982-04-06 | 1983-10-13 | Daiden Kk | 複数機器油圧駆動回路 |
DE3321483A1 (de) * | 1983-06-14 | 1984-12-20 | Linde Ag, 6200 Wiesbaden | Hydraulische einrichtung mit einer pumpe und mindestens zwei von dieser beaufschlagten verbrauchern hydraulischer energie |
-
1989
- 1989-06-23 KR KR1019890008792A patent/KR920010875B1/ko not_active Application Discontinuation
- 1989-06-26 KR KR1019890008792A patent/KR900003545A/ko not_active IP Right Cessation
- 1989-06-28 EP EP89201734A patent/EP0349092B1/de not_active Expired - Lifetime
- 1989-06-28 DE DE8989201734T patent/DE68904998T2/de not_active Expired - Lifetime
- 1989-06-28 US US07/373,337 patent/US5085051A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013216395B4 (de) | 2013-08-19 | 2019-01-17 | Danfoss Power Solutions a.s. | Steuereinrichtung für hydraulische verstellpumpen und verstellpumpe mit einer steuereinrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE68904998D1 (de) | 1993-04-01 |
KR920010875B1 (ko) | 1992-12-19 |
EP0349092A1 (de) | 1990-01-03 |
KR910000503A (ko) | 1991-01-29 |
EP0349092B1 (de) | 1993-02-24 |
KR900003545A (ko) | 1990-03-26 |
US5085051A (en) | 1992-02-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |