GB1503592A - Method of and means for feed-back-connected control of a tractor connected to a working implement - Google Patents

Method of and means for feed-back-connected control of a tractor connected to a working implement

Info

Publication number
GB1503592A
GB1503592A GB7726/75A GB772675A GB1503592A GB 1503592 A GB1503592 A GB 1503592A GB 7726/75 A GB7726/75 A GB 7726/75A GB 772675 A GB772675 A GB 772675A GB 1503592 A GB1503592 A GB 1503592A
Authority
GB
United Kingdom
Prior art keywords
signals
tractor
working implement
dependent
control
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
Application number
GB7726/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Oy
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 GB1503592A publication Critical patent/GB1503592A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
    • 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
    • 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
    • A01B67/00—Devices for controlling the tractor motor by resistance of tools
    • 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
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Soil Working Implements (AREA)

Abstract

1503592 Tractor power lift mechanisms VALMET OY 25 Feb 1975 [27 Feb 1974] 7726/75 Heading A1P [Also in Divisions B7 and G3] A method of feed - back - connected control of a tractor connected to a working implement P comprises the following steps: (a) obtaining implement performance-dependent signals PDS related to at least one variable in the working implement performance, (b) supplying a power control of the tractor engine E with the said implement performance-dependent signals PDS to keep the engine power output matched to the requirements of the implements, (c) obtaining engine-related signals ERS related to at least one variable in the tractor engine functioning and using these engine-related signals to obtain derived signals PEDS, (d) obtaining tractor-dependent signals TDS dependent upon at least one variable in the tractor functioning, (e) supplying an adder A with the tractordependent signals TDS and with the derived signals PEDS derived from the enginerelated signals ERS, (f) supplying the said adder A with control signals MS from an electronic circuit 11 which has a non-linear characteristic including a set point valve -h and a dead range, which receives input signals IS from a differentiator D dependent upon a transducer 1a or lb and a manual control 10a or 10b, and which generates said control signals MS if said input signals IS are below said set point value -h or above said dead range, and (g) passing any corrective signals CS generated by said adder A to a governor 5 which governs a hydraulic valve control arrangement 17 controlling a hydraulic power-lift cylinder 21 for shifting the tractor hydraulic power-lift arms and the working implement so as to change the working implement performance until the said input signals are within the said dead range and the electronic circuit 11 ceases to send control signals MS to said adder A. In the method particularly described, the working implement P is a plough. The working implement performance-dependent signals PDS are related to plough depth or ground resistance. The tractor-dependent signals TDS are related to slippage of the tractors wheels. The manual controls 10a and 10b respectively set the desired plough depth and the desired pressure in the powerlift cylinder 21. The method may comprise the additional step of utilising a controller 15 to lock the tractors differential gear when the tractor wheel-slip exceeds a predetermined level. In modifications of the method particularly described, the working implement may be a harvester, peat-miller, or street-sweeper.
GB7726/75A 1974-02-27 1975-02-25 Method of and means for feed-back-connected control of a tractor connected to a working implement Expired GB1503592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI579/74A FI54981C (en) 1974-02-27 1974-02-27 REGLERINGSSYSTEM FOER TRAKTOR

Publications (1)

Publication Number Publication Date
GB1503592A true GB1503592A (en) 1978-03-15

Family

ID=8504329

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7726/75A Expired GB1503592A (en) 1974-02-27 1975-02-25 Method of and means for feed-back-connected control of a tractor connected to a working implement

Country Status (5)

Country Link
DE (1) DE2508620A1 (en)
FI (1) FI54981C (en)
FR (1) FR2261895B1 (en)
GB (1) GB1503592A (en)
SE (1) SE418666B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017554A1 (en) * 1980-05-08 1981-11-12 Robert Bosch Gmbh, 7000 Stuttgart Controlling tractor plough position - uses closed loop to control plough and minimise engine overload
EP0108398A2 (en) * 1982-11-04 1984-05-16 Valmet Oy Control system in a tractor
US4529039A (en) * 1981-10-22 1985-07-16 Canadian Patents And Development Limited Control system for controlling the displacement of a working portion of an implement
EP0151323A2 (en) 1982-03-22 1985-08-14 Deere & Company Working depth control system for vehicle with ground working inplement
US4931967A (en) * 1989-01-06 1990-06-05 Deere & Company Control system calibration
US4979092A (en) * 1989-01-06 1990-12-18 Deere & Company Hitch control system
US5755291A (en) * 1996-06-10 1998-05-26 Case Corporation Operator interface for vehicle control system with slip regulation
US5911769A (en) * 1996-06-10 1999-06-15 Case Corporation Hitch assembly control system with slip control
US8001848B2 (en) 2007-12-18 2011-08-23 Deere & Company Torque measurement method and apparatus

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1488385A (en) * 1974-10-02 1977-10-12 Brown Tractors Ltd Agricultural tractors
JPS51124502A (en) * 1975-04-25 1976-10-30 Kubota Ltd Automatic depth controller
IT1061820B (en) * 1975-06-30 1983-04-30 Komatsu Mfg Co Ltd AUTOMATIC CONTROL DEVICE FOR EXCAVATION EQUIPMENT AND OR PERFORATION USED IN CIVIL WORKS
JPS5849124B2 (en) * 1976-02-05 1983-11-02 株式会社クボタ Mobile ground work equipment
JPS5826930B2 (en) * 1976-02-05 1983-06-06 株式会社クボタ ground work vehicle
JPS5298108A (en) * 1976-02-09 1977-08-17 Kubota Ltd Soil treating vehicle
JPS5330102A (en) * 1976-08-31 1978-03-22 Komatsu Mfg Co Ltd Device for automatically controlling blade of bulldozer
SE7805090L (en) * 1977-05-04 1978-11-05 Ass Eng Ltd CONTROLS, SPECIAL FOR SPEED CONSTANT HALLERS IN MOTOR VEHICLES
US4194574A (en) * 1977-09-13 1980-03-25 Southwest Research Institute Draft power sensor and method for improving performance in earthmoving equipment
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
DE3017570A1 (en) * 1980-05-08 1981-11-12 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR CONTROLLING A PLOW ON A TRACTOR
US4715012A (en) * 1980-10-15 1987-12-22 Massey-Ferguson Services N.V. Electronic tractor control
DE3047100A1 (en) * 1980-12-13 1982-07-22 Robert Bosch Gmbh, 7000 Stuttgart METHOD AND DEVICE FOR SLIP DETECTION IN THE ATTACHED DEVICE
US4518044A (en) * 1982-03-22 1985-05-21 Deere & Company Vehicle with control system for raising and lowering implement
DE3337317A1 (en) * 1983-10-13 1985-04-25 Mannesmann Rexroth GmbH, 8770 Lohr METHOD AND DEVICE FOR REGULATING THE WORKING DEPTH OF A GROUND MACHINING DEVICE CARRIED BY A TRACTOR
DE3413435A1 (en) * 1984-04-09 1985-10-17 Alfred Teves Gmbh, 6000 Frankfurt CONTROL DEVICE FOR MOTOR VEHICLES
DE3423032A1 (en) * 1984-06-22 1986-01-02 Alfred Teves Gmbh, 6000 Frankfurt CONTROL DEVICE FOR MOTOR VEHICLES
DE3436570C2 (en) * 1984-10-05 1995-12-21 Bosch Gmbh Robert Device for controlling the position of a working device articulated on an agricultural work vehicle via a lifting mechanism
EP0212304B2 (en) * 1985-08-16 1995-12-06 Robert Bosch Gmbh Electro-hydraulic device for controlling the lifting device of a tractor
DE3604218C2 (en) * 1985-08-16 1995-05-04 Bosch Gmbh Robert Electro-hydraulic device for regulating a hoist on an agricultural work vehicle
DE3608456C2 (en) * 1986-03-14 1995-04-20 Bosch Gmbh Robert Electro-hydraulic control device for an agricultural motor vehicle
GB8608760D0 (en) * 1986-04-10 1986-05-14 Massey Ferguson Services Nv Implement control system
DE3612764A1 (en) * 1986-04-16 1987-10-22 Bosch Gmbh Robert ELECTROHYDRAULIC LIFT CONTROL UNIT
DE3711142A1 (en) * 1987-04-02 1988-10-20 Bat Cigarettenfab Gmbh METHOD FOR THE AUTOMATIC CALIBRATION OF AT LEAST ONE REGULAR SIZE OF THE PHYSICAL PROPERTIES OF A STRAND OF MATERIAL FOR THE PRODUCTION OF SMOKEABLE ITEMS
FI902398A (en) * 1990-05-14 1991-11-15 Valmet Oy FOERFARANDE OCH STYRARRANGEMANG FOER TILL / FRAONKOPPLING AV DIFFERENTIALSPAERREN AV EN TRAKTOR ELLER MOTSVARANDE ARBETSMASKIN.
FI902498A (en) * 1990-05-21 1991-11-22 Valmet Oy FOERFARANDE OCH ARRANGEMANG FOER AUTOMATISK BEGRAENSNING AV SLIRNINGEN AV DE DRIVANDE HJULEN AV EN TRAKTOR ELLER MOTSVARANDE ARBETSMASKIN.
DE202015006010U1 (en) * 2015-08-25 2016-04-26 Hartwig Bockhorn Variable tractor-to-body shifting from front to more effective rear axle by introducing stepless height adjustment of hitch points to tractor and implement during tractor traction during field work with attached (self-propelled ..) tillage implements for train optimization purposes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2965181A (en) * 1948-03-03 1960-12-20 Massey Harris Ferguson Ltd Tractor differential gear lock-out device
GB992867A (en) * 1963-02-08 1965-05-26 Brown Tractors Ltd An improved hydraulic power lift mechanism for agricultural tractors or the like
US3732933A (en) * 1971-06-11 1973-05-15 Ford Motor Co Tractor hydraulic lift system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017554A1 (en) * 1980-05-08 1981-11-12 Robert Bosch Gmbh, 7000 Stuttgart Controlling tractor plough position - uses closed loop to control plough and minimise engine overload
US4529039A (en) * 1981-10-22 1985-07-16 Canadian Patents And Development Limited Control system for controlling the displacement of a working portion of an implement
EP0151323A2 (en) 1982-03-22 1985-08-14 Deere & Company Working depth control system for vehicle with ground working inplement
EP0108398A2 (en) * 1982-11-04 1984-05-16 Valmet Oy Control system in a tractor
EP0108398A3 (en) * 1982-11-04 1986-08-27 Valmet Oy Control system in a tractor
US4931967A (en) * 1989-01-06 1990-06-05 Deere & Company Control system calibration
US4979092A (en) * 1989-01-06 1990-12-18 Deere & Company Hitch control system
US5755291A (en) * 1996-06-10 1998-05-26 Case Corporation Operator interface for vehicle control system with slip regulation
US5911769A (en) * 1996-06-10 1999-06-15 Case Corporation Hitch assembly control system with slip control
US8001848B2 (en) 2007-12-18 2011-08-23 Deere & Company Torque measurement method and apparatus

Also Published As

Publication number Publication date
SE418666B (en) 1981-06-22
SE7502148L (en) 1975-08-28
FR2261895A1 (en) 1975-09-19
FR2261895B1 (en) 1980-12-26
FI54981C (en) 1979-04-10
DE2508620A1 (en) 1975-08-28
FI57974A (en) 1975-08-28
FI54981B (en) 1978-12-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee