Permanent Magnet Generator with Mechanical Controller

The power generating efficiency of conventional automotive generators is about 50%. To install vehicles with larger high-power generators that are able to satisfy electrical demand would be difficult. This research project created a generator that uses a permanent magnet (PM) for the rotor and incorporates a new mechanical controller that obtains a generating efficiency of 90% and is capable of maintaining a constant voltage. An air-gap controller between the rotor and the stator was adapted to control the magnetic force in order to adjust the voltage to changes in speed and load.

  • Availability:
  • Authors:
    • Kamosaka, Mitsunobu
    • Kawamura, Hideo
    • Igaki, Yoshihisa
  • Publication Date: 2005-4


  • English

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Filing Info

  • Accession Number: 01007195
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Files: HSL, TRIS, USDOT
  • Created Date: Nov 1 2005 10:40AM