The conversion of a reliant three-wheel glass-fibre-bodied car to battery power giving a predicted range of 35 kn at a speed of 40-45 km/h is described together with results from some in-service tests. The rear seat space was used to house lead-acid batteries. The car designed for suburban use, was driven by a 48 V six pole motor and controlled by parallel/series battery switching with rheostat current limiting and field weakening. Details are given of the mechanical modifications required for the conversion and the electrical control circuits used. A portable in-board charger is included so as to allow opportunity charging. This facility increased the possible range by a factor greater than an increased battery capacity of the same weight. Speed/time curves, plotted for a normal start on the level, show unexpectedly low results at low speeds. This could have been due to the lack of a gearbox, excess tyre pressure and only three wheels. The energy consumption was about 107 wh/t-km at 48 km/h giving a specific ac energy consumption of 320 wh/t-km. The batteries have deteriorated after nearly four years and a total mileage of 1350 km limiting the reliable range to 20 km. /TRRL/

  • Availability:
  • Corporate Authors:

    IPC Electrical Electronic Press Limited

    Dorset House Stamford Street
    London SE1 9LU,   England 
  • Authors:
    • Prigmore, B J
  • Publication Date: 1979-1-19

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 35-37
  • Serial:
    • Volume: 204
    • Issue Number: 3
    • Publisher: Reed Business Information, Limited
    • ISSN: 0013-4384

Subject/Index Terms

Filing Info

  • Accession Number: 00195486
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 29 1979 12:00AM