GB836900A - Improvements relating to control systems for electrically-propelled vehicles - Google Patents

Improvements relating to control systems for electrically-propelled vehicles

Info

Publication number
GB836900A
GB836900A GB5052/57A GB505257A GB836900A GB 836900 A GB836900 A GB 836900A GB 5052/57 A GB5052/57 A GB 5052/57A GB 505257 A GB505257 A GB 505257A GB 836900 A GB836900 A GB 836900A
Authority
GB
United Kingdom
Prior art keywords
relay
shaft
motor
notch
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
GB5052/57A
Inventor
Arthur Clifford Withnell
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.)
A C WITHNELL Ltd
Original Assignee
A C WITHNELL Ltd
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 A C WITHNELL Ltd filed Critical A C WITHNELL Ltd
Priority to GB5052/57A priority Critical patent/GB836900A/en
Publication of GB836900A publication Critical patent/GB836900A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/005—Testing of electric installations on transport means
    • G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1051—Arrangements for steering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/14—Joysticks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1005—Wheelchairs having brakes
    • A61G5/1032—Wheelchairs having brakes engaging an element of the drive or transmission, e.g. drive belt, electrodynamic brake

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

836,900. Control of D.C. motors; controllers. WITHNELL Ltd., A. C. May 9, 1958 [Feb. 14, 1957], No. 5052/57. Class 38 (3). A controller for a battery-vehicle comprises a haft 14 provided with a hand-grip and carrying a cam 16 for limiting angular rotation of the shaft. The member 16 has a pin 19 working in a slot which houses a spring for biasing the shaft 14 to an " off " position, the control shaft being geared to a lay-shaft 24 carrying a brush-arm 26 co-operating with face-plate 27. Four interconnected brushes 29 engage respective rows of concentric segments which are secured by terminal screws to sheet 31. The face-plate is fabricated by casting a synthetic resin on the sheet so that the segments are embedded, and then machining the surface of the resin to expose the segments. Upon closure of a master switch M, the shaft 14 must be brought to its " off " position before relay MPR will operate. The control shaft is now rotated to its first notch to energize contactor R+ and complete the motor circuit through contacts of relay Z. Lowest speed forward drive is thus obtained. Further rotation of the control-shaft up to its sixth notch causes contactors R1-R5 to eliminate resistor R progressively, a lamp PL being extinguished to indicate use of full power. Rotation of the control shaft from the " off " position in the opposite direction operates braking contactor B and relay Z to reverse the relative armature and field connections of the motor, and to close the motor circuit through resistor R. A further braking notch is provided by operating contactor R1. A selector switch S may be positioned to provide reverse drive, a relay INT being operated only if the controller is at its second braking notch. In such position of the selector switch, the motor cannot be energized until the reverse drive connections have been established by operation of the relay INT. Holding circuits for this relay allows adjustment of the controller for reducing the resistor R, the relay Z being operated so that the motor armature connections are reversed.
GB5052/57A 1957-02-14 1957-02-14 Improvements relating to control systems for electrically-propelled vehicles Expired GB836900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5052/57A GB836900A (en) 1957-02-14 1957-02-14 Improvements relating to control systems for electrically-propelled vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5052/57A GB836900A (en) 1957-02-14 1957-02-14 Improvements relating to control systems for electrically-propelled vehicles

Publications (1)

Publication Number Publication Date
GB836900A true GB836900A (en) 1960-06-09

Family

ID=9788848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5052/57A Expired GB836900A (en) 1957-02-14 1957-02-14 Improvements relating to control systems for electrically-propelled vehicles

Country Status (1)

Country Link
GB (1) GB836900A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380772A1 (en) * 1977-02-22 1978-09-15 Ortopedia Gmbh Electrically driven invalid chair - has charging and service plugs each covering all sockets inserted (SW 18.9.78)
EP0096098A1 (en) * 1982-06-15 1983-12-21 BEC Mobility Limited Control means for an electrically powered vehicle
GB2142791A (en) * 1983-06-02 1985-01-23 Westinghouse Electric Corp Propulsion control apparatus for passenger vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2380772A1 (en) * 1977-02-22 1978-09-15 Ortopedia Gmbh Electrically driven invalid chair - has charging and service plugs each covering all sockets inserted (SW 18.9.78)
EP0096098A1 (en) * 1982-06-15 1983-12-21 BEC Mobility Limited Control means for an electrically powered vehicle
GB2142791A (en) * 1983-06-02 1985-01-23 Westinghouse Electric Corp Propulsion control apparatus for passenger vehicles

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