IT1303971B1 - Circuito idraulico per macchine agricole o movimento terra condispositivo di autocalibrazione e relativo metodo di funzionamento . - Google Patents
Circuito idraulico per macchine agricole o movimento terra condispositivo di autocalibrazione e relativo metodo di funzionamento .Info
- Publication number
- IT1303971B1 IT1303971B1 IT1998BO000642A ITBO980642A IT1303971B1 IT 1303971 B1 IT1303971 B1 IT 1303971B1 IT 1998BO000642 A IT1998BO000642 A IT 1998BO000642A IT BO980642 A ITBO980642 A IT BO980642A IT 1303971 B1 IT1303971 B1 IT 1303971B1
- Authority
- IT
- Italy
- Prior art keywords
- calibration
- self
- hydraulic circuit
- operating method
- agricultural machines
- Prior art date
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
- E02F9/2025—Particular purposes of control systems not otherwise provided for
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
- A01B71/02—Setting or adjusting mechanisms
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Fluid-Pressure Circuits (AREA)
- Measuring Fluid Pressure (AREA)
- Harvesting Machines For Root Crops (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1998BO000642A IT1303971B1 (it) | 1998-11-18 | 1998-11-18 | Circuito idraulico per macchine agricole o movimento terra condispositivo di autocalibrazione e relativo metodo di funzionamento . |
EP99203717A EP1002454B1 (en) | 1998-11-18 | 1999-11-08 | Hydraulic circuit with a self-calibrating device for agricultural or earthmoving machinery. |
DE69910948T DE69910948T2 (de) | 1998-11-18 | 1999-11-08 | Hydraulischer Schaltkreis mit Selbstkalibrierungseinrichtung für Landmaschinen oder Erdbewegungsmaschinen |
US09/439,262 US6347517B1 (en) | 1998-11-18 | 1999-11-12 | Hydraulic circuit with a self-calibrating device for agricultural or earthmoving machinery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1998BO000642A IT1303971B1 (it) | 1998-11-18 | 1998-11-18 | Circuito idraulico per macchine agricole o movimento terra condispositivo di autocalibrazione e relativo metodo di funzionamento . |
Publications (3)
Publication Number | Publication Date |
---|---|
ITBO980642A0 ITBO980642A0 (it) | 1998-11-18 |
ITBO980642A1 ITBO980642A1 (it) | 2000-05-18 |
IT1303971B1 true IT1303971B1 (it) | 2001-03-01 |
Family
ID=11343512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1998BO000642A IT1303971B1 (it) | 1998-11-18 | 1998-11-18 | Circuito idraulico per macchine agricole o movimento terra condispositivo di autocalibrazione e relativo metodo di funzionamento . |
Country Status (4)
Country | Link |
---|---|
US (1) | US6347517B1 (it) |
EP (1) | EP1002454B1 (it) |
DE (1) | DE69910948T2 (it) |
IT (1) | IT1303971B1 (it) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7017674B2 (en) * | 2003-11-17 | 2006-03-28 | Caterpillar Inc. | Method of changing operating characteristics of an implement |
DE102004005401B4 (de) * | 2004-02-03 | 2006-04-06 | Jungheinrich Aktiengesellschaft | Verfahren zum Einstellen des Steuerstroms von stromgesteuerten Hydraulikventilen |
US8403098B2 (en) * | 2005-02-28 | 2013-03-26 | Caterpillar Inc. | Work machine hydraulics control system |
US7392790B2 (en) * | 2006-01-20 | 2008-07-01 | Caterpillar Inc. | System and method for resolving crossed electrical leads |
US7370635B2 (en) * | 2006-01-20 | 2008-05-13 | Caterpillar Inc. | System and method for resolving electrical leads |
US7562554B2 (en) * | 2006-08-31 | 2009-07-21 | Caterpillar Inc. | Method for calibrating independent metering valves |
US7798272B2 (en) * | 2006-11-30 | 2010-09-21 | Caterpillar Inc | Systems and methods for controlling slip of vehicle drive members |
US7849953B2 (en) * | 2007-11-29 | 2010-12-14 | Caterpillar Paving Products Inc | Control system and method for operating a hydrostatically driven vehicle |
US8374766B2 (en) * | 2007-11-29 | 2013-02-12 | Caterpillar Paving Products Inc. | Power management system for compaction vehicles and method |
US8166795B2 (en) * | 2009-11-30 | 2012-05-01 | Eaton Corporation | Out-of-range sensor recalibration |
US11180184B2 (en) | 2019-01-25 | 2021-11-23 | Cnh Industrial America Llc | Automatic steering calibration of an agricultural machine |
DE102021003236A1 (de) * | 2021-06-23 | 2022-12-29 | Hydac Fluidtechnik Gmbh | Verfahren zum Anpassen einer Ansteuerung eines Proportionalventils an seinen funktionsgemäßen Betrieb als Teil eines Fluidsystems |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3644736C2 (de) * | 1985-12-30 | 1996-01-11 | Rexroth Mannesmann Gmbh | Steueranordnung für mindestens zwei von mindestens einer Pumpe gespeiste hydraulische Verbraucher |
US4879662A (en) * | 1988-03-11 | 1989-11-07 | Sundstrand Corporation | Fluid flow self calibration scheme |
US4980825A (en) * | 1988-05-11 | 1990-12-25 | Hydro-Craft, Inc. | Servo valve analyzing system and method |
US5012415A (en) * | 1989-01-06 | 1991-04-30 | Deere & Company | Control system calibration |
US5472056A (en) * | 1993-09-08 | 1995-12-05 | Case Corporation | Control system for agricultural vehicle and calibration method for such control systems |
DE19602893A1 (de) * | 1996-01-27 | 1997-07-31 | Bosch Gmbh Robert | Vorrichtung zur Regelung der Lage einer Bearbeitungseinheit einer landwirtschaftlichen Maschine |
US5762475A (en) * | 1996-03-18 | 1998-06-09 | Caterpillar Inc. | Automatic solenoid control valve calibration |
US5844390A (en) * | 1997-01-27 | 1998-12-01 | Cameron; Robert | Method and apparatus for regulating a fluid operated machine |
US5784945A (en) * | 1997-05-14 | 1998-07-28 | Caterpillar Inc. | Method and apparatus for determining a valve transform |
-
1998
- 1998-11-18 IT IT1998BO000642A patent/IT1303971B1/it active
-
1999
- 1999-11-08 EP EP99203717A patent/EP1002454B1/en not_active Expired - Lifetime
- 1999-11-08 DE DE69910948T patent/DE69910948T2/de not_active Expired - Lifetime
- 1999-11-12 US US09/439,262 patent/US6347517B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US6347517B1 (en) | 2002-02-19 |
ITBO980642A0 (it) | 1998-11-18 |
DE69910948T2 (de) | 2004-05-19 |
EP1002454A1 (en) | 2000-05-24 |
EP1002454B1 (en) | 2003-09-03 |
ITBO980642A1 (it) | 2000-05-18 |
DE69910948D1 (de) | 2003-10-09 |
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