NO165048C - Styresystem ved en traktor. - Google Patents

Styresystem ved en traktor.

Info

Publication number
NO165048C
NO165048C NO834000A NO834000A NO165048C NO 165048 C NO165048 C NO 165048C NO 834000 A NO834000 A NO 834000A NO 834000 A NO834000 A NO 834000A NO 165048 C NO165048 C NO 165048C
Authority
NO
Norway
Prior art keywords
tractor
control
Prior art date
Application number
NO834000A
Other languages
English (en)
Norwegian (no)
Other versions
NO834000L (no
NO165048B (no
Inventor
Hannu Hannukainen
Original Assignee
Valmet Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valmet Oy filed Critical Valmet Oy
Publication of NO834000L publication Critical patent/NO834000L/no
Publication of NO165048B publication Critical patent/NO165048B/no
Publication of NO165048C publication Critical patent/NO165048C/no

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
    • G05D3/20—Control of position or direction using feedback using a digital comparing device
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
NO834000A 1982-11-04 1983-11-02 Styresystem ved en traktor. NO165048C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI823777A FI72025C (fi) 1982-11-04 1982-11-04 Regleringssystem foer en traktor.

Publications (3)

Publication Number Publication Date
NO834000L NO834000L (no) 1984-05-07
NO165048B NO165048B (no) 1990-09-03
NO165048C true NO165048C (no) 1990-12-19

Family

ID=8516255

Family Applications (1)

Application Number Title Priority Date Filing Date
NO834000A NO165048C (no) 1982-11-04 1983-11-02 Styresystem ved en traktor.

Country Status (7)

Country Link
US (1) US4658908A (da)
EP (1) EP0108398B1 (da)
BR (1) BR8306057A (da)
DE (1) DE3381549D1 (da)
DK (1) DK505083A (da)
FI (1) FI72025C (da)
NO (1) NO165048C (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8608760D0 (en) * 1986-04-10 1986-05-14 Massey Ferguson Services Nv Implement control system
DE3767791D1 (de) * 1986-06-14 1991-03-07 Massey Ferguson Services Nv Betaetigungsvorrichtung fuer schlepperkraftheber.
US4807136A (en) * 1987-10-26 1989-02-21 Ford Motor Company Draft load measurement and control
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
JPH0226301A (ja) * 1988-07-12 1990-01-29 Teijin Seiki Co Ltd サーボ制御装置
JPH03186601A (ja) * 1989-12-14 1991-08-14 Teijin Seiki Co Ltd 電気油圧サーボ機構
CH680331A5 (en) * 1990-08-15 1992-08-14 Rapid Masch Fahrzeuge Ag Tractor tool ground pressure regulation system - adjusts pressure in hydraulic lifting and lowering drive for tool
US5285715A (en) * 1992-08-06 1994-02-15 Hr Textron, Inc. Electrohydraulic servovalve with flow gain compensation
US7301541B2 (en) * 1995-08-16 2007-11-27 Microunity Systems Engineering, Inc. Programmable processor and method with wide operations
DE69942339D1 (de) * 1998-08-24 2010-06-17 Microunity Systems Eng System mit breiter operandenarchitektur und verfahren
US7932911B2 (en) * 1998-08-24 2011-04-26 Microunity Systems Engineering, Inc. Processor for executing switch and translate instructions requiring wide operands
US7853383B2 (en) * 2006-12-28 2010-12-14 Caterpillar Inc System for automatically loading a scraper
US9785565B2 (en) 2014-06-30 2017-10-10 Microunity Systems Engineering, Inc. System and methods for expandably wide processor instructions

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568570A (en) * 1969-03-05 1971-03-09 Diamond Power Speciality Anticreep hydraulic positioning system
DE2025040C3 (de) * 1970-05-22 1973-02-22 Helmut Weiste Laengenveraenderlicher Oberlenker fuer eine Dreipunkt-Anhaengevorrichtung
US3736486A (en) * 1972-03-17 1973-05-29 Teletronics Int Inc Servo control system
FI54981C (fi) * 1974-02-27 1979-04-10 Valmet Oy Regleringssystem foer traktor
US4132273A (en) * 1977-06-30 1979-01-02 International Harvester Company Tractor hitch control system having safety features
JPS55111706A (en) * 1979-02-15 1980-08-28 Kubota Ltd Automatic lifting device of soil treating machine
US4294162A (en) * 1979-07-23 1981-10-13 United Technologies Corporation Force feel actuator fault detection with directional threshold
US4343365A (en) * 1980-07-07 1982-08-10 Ford Motor Company Electrically operated hydraulic power lift system

Also Published As

Publication number Publication date
NO834000L (no) 1984-05-07
FI72025C (fi) 1987-04-13
FI72025B (fi) 1986-12-31
DK505083D0 (da) 1983-11-03
DK505083A (da) 1984-05-05
US4658908A (en) 1987-04-21
DE3381549D1 (de) 1990-06-21
NO165048B (no) 1990-09-03
FI823777A0 (fi) 1982-11-04
EP0108398A2 (en) 1984-05-16
FI823777L (fi) 1984-05-05
BR8306057A (pt) 1984-06-12
EP0108398B1 (en) 1990-05-16
EP0108398A3 (en) 1986-08-27

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