FR2330580A1 - Underfloor cable guidance for automatic vehicle - has forward and reverse sensors as e.g. pair of coils spanning guide cable - Google Patents

Underfloor cable guidance for automatic vehicle - has forward and reverse sensors as e.g. pair of coils spanning guide cable

Info

Publication number
FR2330580A1
FR2330580A1 FR7633561A FR7633561A FR2330580A1 FR 2330580 A1 FR2330580 A1 FR 2330580A1 FR 7633561 A FR7633561 A FR 7633561A FR 7633561 A FR7633561 A FR 7633561A FR 2330580 A1 FR2330580 A1 FR 2330580A1
Authority
FR
France
Prior art keywords
cable
pair
reverse
automatic vehicle
underfloor
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.)
Granted
Application number
FR7633561A
Other languages
French (fr)
Other versions
FR2330580B1 (en
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.)
LOGISTICON Inc
Original Assignee
LOGISTICON Inc
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
Priority claimed from US05/629,492 external-priority patent/US4083422A/en
Priority claimed from US05/629,491 external-priority patent/US4040500A/en
Priority claimed from US05/644,549 external-priority patent/US4043418A/en
Application filed by LOGISTICON Inc filed Critical LOGISTICON Inc
Publication of FR2330580A1 publication Critical patent/FR2330580A1/en
Application granted granted Critical
Publication of FR2330580B1 publication Critical patent/FR2330580B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0259—Control of position or course in two dimensions specially adapted to land vehicles using magnetic or electromagnetic means
    • G05D1/0265—Control of position or course in two dimensions specially adapted to land vehicles using magnetic or electromagnetic means using buried wires
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/0755—Position control; Position detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Abstract

A self-steering vehicle carries a sensor to follow a cable embedded in the ground. It generates an error signal which represens a positional deviation. This signal is applied to control a steering wheel. A reverse sensor is also provided to generate an error signal referred to a virtual reference point behind the vehicle so that it can traverse the path in reverse. The forwards and reverse sensors may each consist of a pair of coils, spanning the guide cable.
FR7633561A 1975-11-06 1976-11-05 Underfloor cable guidance for automatic vehicle - has forward and reverse sensors as e.g. pair of coils spanning guide cable Granted FR2330580A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/629,492 US4083422A (en) 1975-11-06 1975-11-06 Bolt-on guidance system for lift truck
US05/629,491 US4040500A (en) 1975-11-06 1975-11-06 Guidance system for lift truck
US05/644,549 US4043418A (en) 1975-11-06 1975-12-29 Reverse direction guidance system for lift truck

Publications (2)

Publication Number Publication Date
FR2330580A1 true FR2330580A1 (en) 1977-06-03
FR2330580B1 FR2330580B1 (en) 1984-01-13

Family

ID=27417475

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633561A Granted FR2330580A1 (en) 1975-11-06 1976-11-05 Underfloor cable guidance for automatic vehicle - has forward and reverse sensors as e.g. pair of coils spanning guide cable

Country Status (2)

Country Link
AU (1) AU513933B2 (en)
FR (1) FR2330580A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645980B1 (en) * 1989-04-14 1996-05-31 Alsthom Gec DEVICE FOR GUIDING VEHICLES ON A NON-MATERIALIZED TRACK

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029890A (en) * 1958-08-25 1962-04-17 Gen Motors Corp Vehicle skid control
FR1464517A (en) * 1965-02-05 1966-12-30 Webb Co Jervis B Automatic guidance control for self-propelled vehicles
FR2239375A1 (en) * 1973-08-01 1975-02-28 Bosch Gmbh Robert
FR2334587A1 (en) * 1975-12-08 1977-07-08 Kottgen Kg Transport system with guided vehicles - has steerable axles controlled by feelers interlocked with reversing switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029890A (en) * 1958-08-25 1962-04-17 Gen Motors Corp Vehicle skid control
FR1464517A (en) * 1965-02-05 1966-12-30 Webb Co Jervis B Automatic guidance control for self-propelled vehicles
FR2239375A1 (en) * 1973-08-01 1975-02-28 Bosch Gmbh Robert
FR2334587A1 (en) * 1975-12-08 1977-07-08 Kottgen Kg Transport system with guided vehicles - has steerable axles controlled by feelers interlocked with reversing switch

Also Published As

Publication number Publication date
AU513933B2 (en) 1981-01-15
FR2330580B1 (en) 1984-01-13
AU2887977A (en) 1979-03-22

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse