A hybrid conventional drive/electric car has been built that does not use batteries, a motor, or controls. In the purely electric mode, it is pulled by an independently suspended tractor plate that is lowered to within 5/16ths of an inch of a set of buried, switched, linear induction motors. These motors are turned on when the vehicle is approaching, and operate with pulse population modulation at a speed commanded by the driver through an infrared link connected to a computer. Prototype speeds of 24 mph for a 2000 lb. vehicle are contemplated. The motors ultimately can provide speeds necessary for freeway driving, but also must be able to bear the vertical loads associated with lane-changing and non-compatible traffic. The top level system requirements are discussed in a general manner. Pictures of the motor, tractor, and vehicle, etc. are shown. Figures are presented of the force requirements, materials sensitivity, motor slip characteristics, 3-D motor force characteristics, gap characteristics, and power vs. force characteristics. Electromagnetic field measurements inside the car are discussed. Although far from production, this full size prototype shows a radical approach to solving the well known problems associated with battery driven electric vehicles.


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    Titel :

    Switched linear induction motor freeway system data


    Weitere Titelangaben:

    Kraftfahrzeugantrieb durch Linearasynchronmotor in der Straßendecke


    Beteiligte:
    Ulbrich, E.A. (Autor:in)


    Erscheinungsdatum :

    1992


    Format / Umfang :

    11 Seiten, 13 Bilder, 8 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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    Ulbrich, Erwin A. | SAE Technical Papers | 1993


    Switched linear induction motor freeway system data

    Ulbrich,E.A. / Twenty First Centuri Electric Vehicles,US | Kraftfahrwesen | 1992



    Switched Linear Induction Motor Freeway System Cost Analysis

    Ulbrich, Erv | SAE Technical Papers | 1995


    Freeway spacing in urban freeway system

    Peterson, J.M. | Engineering Index Backfile | 1960