A functional model breadboard converter and a rare-earth-cobalt, permanent magnet motor; as well as an engineering model converter and PM motor suitable for vehicle installations were developed and tested. The converter and motor achieved an 88% peak efficiency, a maximum output of 26 kW at 26,000 rpm, and a continuous rating of 15 kW. The system also generated power to the source during braking, with a demonstrated peak power available at the converter terminals of approximately 26 kW at 88% efficiency. Major conclusions include: (1) the SAE J227a(D) driving cycle efficiency for the converter/motor is 86% to 88% when energy available for recovery at the converter terminals is included; (2) the converter initial cost is approximately five times that of the permanent magnet motor, but can be reduced by means of LSI logic and integrated liquid cooled semiconductor packages; and (3) an electronically commutated motor with a liquid cooled converter will operate reliably without service or maintenance for the life of a passenger vehicle.


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    Title :

    A Lightweight Electronically Commutated DC Motor for Electric Passenger Vehicles


    Contributors:
    E. F. Echolds (author) / P. S. Walla (author)

    Publication date :

    1982


    Size :

    96 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English






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    Maslowski, Edward A. | SAE Technical Papers | 1981


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