GB1488915A - Steering control system - Google Patents

Steering control system

Info

Publication number
GB1488915A
GB1488915A GB5453074A GB5453074A GB1488915A GB 1488915 A GB1488915 A GB 1488915A GB 5453074 A GB5453074 A GB 5453074A GB 5453074 A GB5453074 A GB 5453074A GB 1488915 A GB1488915 A GB 1488915A
Authority
GB
United Kingdom
Prior art keywords
sensor
steering
crop
sensors
harvester
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
GB5453074A
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.)
Maschinenfabrik Fahr AG
Original Assignee
Maschinenfabrik Fahr AG
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 Maschinenfabrik Fahr AG filed Critical Maschinenfabrik Fahr AG
Publication of GB1488915A publication Critical patent/GB1488915A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/24—Steering controls, i.e. means for initiating a change of direction of the vehicle not vehicle-mounted
    • B62D1/28—Steering controls, i.e. means for initiating a change of direction of the vehicle not vehicle-mounted non-mechanical, e.g. following a line or other known markers
    • 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
    • A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
    • A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
    • A01B69/008—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow automatic
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
    • A01D41/12—Details of combines
    • A01D41/127—Control or measuring arrangements specially adapted for combines
    • A01D41/1278—Control or measuring arrangements specially adapted for combines for automatic steering

Abstract

1488915 Steering harvesters MASCHINENFABRIK FAHR AG GOTTMADINGEN 17 Dec 1974 [3 Jan 1974] 54530/74 Heading A1F [Also in Division G3] A system for steering a harvester such as that described in Specification 1474276 uses two crop line sensors 1, 87, at the front and rear of the machine respectively, and a crop detector 86, 86' ahead of the cutter which, when a gap is detected, causes disconnection of the front sensor, the steering being controlled by the rear sensor only. The sensors comprise feelers connected to potentiometers arranged in a bridge circuit to control an electro-hydraulic steering mechanism. Normally. the two sensors are connected in series but if a gap is detected by 86, and logic elements 91 change the sensor circuit over to one which includes a second potentiometer in sensor 87, that of sensor 1 being disconnected. The sensor 87 includes a switch which disconnects the system if it loses contact with the crop, the steering being locked in its last position. The harvester is stopped if both detectors 86, 86' detect absence of crop. The control system is otherwise as described in Specification 1474276.
GB5453074A 1974-01-03 1974-12-17 Steering control system Expired GB1488915A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742400125 DE2400125C3 (en) 1974-01-03 1974-01-03 Side guide for a harvesting machine

Publications (1)

Publication Number Publication Date
GB1488915A true GB1488915A (en) 1977-10-19

Family

ID=5904052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5453074A Expired GB1488915A (en) 1974-01-03 1974-12-17 Steering control system

Country Status (2)

Country Link
DE (1) DE2400125C3 (en)
GB (1) GB1488915A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3831764A1 (en) * 1988-09-19 1990-03-29 Werner Feser Servo-controlled working appliance with capacitive plant sensing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1582237C3 (en) * 1967-12-21 1975-02-13 Ewald Dipl.-Ing. 7701 Weiterdingen Graeber Side guide control for a mower
BE757894A (en) * 1970-10-23 1971-04-01 Clayson Nv DEVICE FOR AUTOMATIC CONTROL OF AGRICULTURAL MACHINES MORE SPECIAL COMBINES, (VERSION: G. STRUBBE),

Also Published As

Publication number Publication date
DE2400125C3 (en) 1981-12-10
DE2400125A1 (en) 1975-07-17
DE2400125B2 (en) 1978-02-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee