CA1017833A - Systeme electrohydraulique regulateur de traction pour materiel agricole attele a un tracteur - Google Patents
Systeme electrohydraulique regulateur de traction pour materiel agricole attele a un tracteurInfo
- Publication number
- CA1017833A CA1017833A CA235,447A CA235447A CA1017833A CA 1017833 A CA1017833 A CA 1017833A CA 235447 A CA235447 A CA 235447A CA 1017833 A CA1017833 A CA 1017833A
- Authority
- CA
- Canada
- Prior art keywords
- electro
- control system
- draft control
- tractor drawn
- hydraulic draft
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
- G05D3/16—Control of position or direction using feedback using an analogue comparing device whose output amplitude can only take a number of discrete values
-
- 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
- A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
- A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
- A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
- A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
- A01B63/1117—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements using a hitch position sensor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Operation Control Of Excavators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/556,531 US4064945A (en) | 1975-03-10 | 1975-03-10 | Electronic depth control system |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1017833A true CA1017833A (fr) | 1977-09-20 |
Family
ID=24221737
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA235,447A Expired CA1017833A (fr) | 1975-03-10 | 1975-09-15 | Systeme electrohydraulique regulateur de traction pour materiel agricole attele a un tracteur |
Country Status (2)
Country | Link |
---|---|
US (1) | US4064945A (fr) |
CA (1) | CA1017833A (fr) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5330102A (en) * | 1976-08-31 | 1978-03-22 | Komatsu Mfg Co Ltd | Device for automatically controlling blade of bulldozer |
US4132273A (en) * | 1977-06-30 | 1979-01-02 | International Harvester Company | Tractor hitch control system having safety features |
FR2435187A1 (fr) * | 1978-09-08 | 1980-04-04 | Renault | Dispositif de relevage electrohydraulique d'outils agraires |
US4231432A (en) * | 1978-09-22 | 1980-11-04 | International Harvester Company | Position and draft control system for plows |
GB2042691B (en) * | 1979-02-12 | 1983-07-20 | Lely Nv C Van Der | Motor vehicles for towing implements |
JPS55111706A (en) * | 1979-02-15 | 1980-08-28 | Kubota Ltd | Automatic lifting device of soil treating machine |
DE2927585C2 (de) * | 1979-07-07 | 1983-06-09 | Xaver Fendt & Co, 8952 Marktoberdorf | Verfahren und Einrichtung zum Regeln der Arbeitstiefe eines von einer landwirtschaftlichen Zugmaschine, wie z.B. einem Schlepper getragenen Pfluges |
DE3017570A1 (de) * | 1980-05-08 | 1981-11-12 | Robert Bosch Gmbh, 7000 Stuttgart | Einrichtung zum steuern eines pfluges an einem traktor |
US4365672A (en) * | 1980-06-05 | 1982-12-28 | International Harvester Co. | Automatic alternating marker system |
US4343365A (en) * | 1980-07-07 | 1982-08-10 | Ford Motor Company | Electrically operated hydraulic power lift system |
WO1982002815A1 (fr) * | 1981-02-24 | 1982-09-02 | Lasoen Jean Jacques | Appareil de detection du tirage d'un tracteur |
US4397359A (en) * | 1981-04-27 | 1983-08-09 | Deere & Company | Tractor hitch with yoke having pivotally supported upper end |
CA1196998A (fr) * | 1981-10-22 | 1985-11-19 | James M. Sakundiak | Regulateur electronique automatique d'elevation et de penetration |
DE3378882D1 (en) * | 1982-03-22 | 1989-02-16 | Deere & Co | Working depth control system for vehicle with ground working implement |
US4518044A (en) * | 1982-03-22 | 1985-05-21 | Deere & Company | Vehicle with control system for raising and lowering implement |
FR2526558A1 (fr) * | 1982-05-05 | 1983-11-10 | Renault | Commande de relevage electrohydraulique de tracteur agricole |
US4495577A (en) * | 1982-08-06 | 1985-01-22 | Deere & Company | Model reference adaptive implement control |
US4508176A (en) * | 1982-11-22 | 1985-04-02 | Deere & Company | Vehicle with control system having operator-actuable switch for storing parameter signal value to control vehicle-connected implement raising and lowering structure |
DE3342006A1 (de) * | 1983-11-22 | 1985-05-30 | Robert Bosch Gmbh, 7000 Stuttgart | Regelsystem fuer hubwerke an landwirtschaftlichen arbeitsgeraeten |
AU569362B2 (en) * | 1984-02-10 | 1988-01-28 | Deere & Company | Self-tuning regulator implement control |
FR2568087B1 (fr) * | 1984-07-24 | 1987-03-20 | Defrancq Hubert | Dispositif de commande de la position d'un systeme de relevage d'outil agricole |
GB8608760D0 (en) * | 1986-04-10 | 1986-05-14 | Massey Ferguson Services Nv | Implement control system |
DE3760152D1 (en) * | 1987-01-22 | 1989-06-15 | Franz Kirchberger | Device for measuring the penetration depth or the vertical position of an agricultural tool with respect to ground level |
US5235511A (en) * | 1988-06-09 | 1993-08-10 | Spectra-Physics, Inc. | Method for automatic depth control for earth moving and grading |
US4914593B1 (en) * | 1988-06-09 | 1995-01-17 | Spectra Physics | Method for automatic depth control for earth moving and grading |
US4918608B1 (en) * | 1988-06-09 | 1996-07-02 | Christopher O Middleton | Method for automatic depth control for earth moving and grading |
DE3838498A1 (de) * | 1988-11-12 | 1990-05-23 | Bosch Gmbh Robert | Vorrichtung zur regelung von hubwerken |
US4979092A (en) * | 1989-01-06 | 1990-12-18 | Deere & Company | Hitch control system |
US4938114A (en) * | 1989-10-02 | 1990-07-03 | The United States Of America As Represented By The Secretary Of The Navy | Mine clearing apparatus |
US5524560A (en) * | 1994-12-09 | 1996-06-11 | The United States Of America As Represented By The Department Of Agriculture | System for controlling vertical displacement of agricultural implements into the soil |
US5653292A (en) * | 1995-01-19 | 1997-08-05 | Great Plains Manufacturing, Incorporated | Method and apparatus for automatically controlling the soil penetration depth of zone tillage coulters and the like |
US5957218A (en) * | 1997-11-18 | 1999-09-28 | Deere & Company | Electrohydraulic control of implement lift cylinders |
CA2257049A1 (fr) | 1997-12-31 | 1999-06-30 | Richard Gramm | Commande de hauteur de tete de moissonneuse-batteuse |
US6230817B1 (en) | 1999-08-10 | 2001-05-15 | Case Corporation | Hitch assembly for a work vehicle |
US6389999B1 (en) | 2001-11-02 | 2002-05-21 | Dennis Duello | Dynamic controller of excess downpressure for surface engaging implement |
FR2840764B1 (fr) * | 2002-06-18 | 2005-01-07 | Hubert Defrancq | Dispositif pour ameliorer le suivi de relief par un outil agricole attele a un tracteur |
US6883299B1 (en) | 2003-08-05 | 2005-04-26 | Richard Gramm | Height sensor arrangement for agricultural applications |
US20070282497A1 (en) * | 2006-06-01 | 2007-12-06 | Shuen-Ri Jou | Power regulating circuit assembly for moto vehicles |
US7360495B1 (en) | 2006-12-18 | 2008-04-22 | Howard D. Martin | Method for planter depth monitoring |
US7360494B2 (en) * | 2006-07-14 | 2008-04-22 | Howard D. Martin | Apparatus for planter depth monitoring |
US7647753B2 (en) * | 2006-12-30 | 2010-01-19 | Headsight, Inc. | Header height control system and method |
ES2627674T3 (es) * | 2007-09-26 | 2017-07-31 | Precision Planting Llc | Sistema y método para determinar una fuerza hacia abajo apropiada para una unidad de hilera de sembradora |
AR095452A1 (es) | 2012-07-25 | 2015-10-21 | Prec Planting Llc | Sistemas, métodos y aparatos integrados de control de la fuerza descendente de implementos agrícolas |
US9826677B2 (en) | 2014-12-16 | 2017-11-28 | Cnh Industrial Canada, Ltd. | Seed implement incorporating a down pressure sensing and adjustment system |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3026638A (en) * | 1960-01-28 | 1962-03-27 | Sanders Associates Inc | Automatic blade slope control system |
US3058242A (en) * | 1960-03-02 | 1962-10-16 | Collins Radio Co | Control system for earth moving machine |
US3437920A (en) * | 1965-09-14 | 1969-04-08 | Norman J Anderson | Transducer circuits with frequency-amplitude control |
US3454101A (en) * | 1967-06-12 | 1969-07-08 | Caterpillar Tractor Co | Electronic circuit for automatic blade control for motor graders |
US3516498A (en) * | 1968-03-07 | 1970-06-23 | Case Co J I | Electro draft control mechanism |
FR2171967B1 (fr) * | 1972-02-17 | 1975-10-24 | Renault | |
AR207132A1 (es) * | 1974-01-21 | 1976-09-15 | Caterpillar Tractor Co | Estabilizador de la pala de una maquina trabajadora de la tierra |
-
1975
- 1975-03-10 US US05/556,531 patent/US4064945A/en not_active Expired - Lifetime
- 1975-09-15 CA CA235,447A patent/CA1017833A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US4064945A (en) | 1977-12-27 |
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