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All wheel drive vehicle

  • US 7,468,587 B2
  • Filed: 07/06/2006
  • Issued: 12/23/2008
  • Est. Priority Date: 07/21/2005
  • Status: Expired due to Fees
First Claim
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1. An all-wheel-drive vehicle including at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit, wherein each of said motors comprises:

  • (i) at least one annular magnetic conductor on which an even number of permanent magnets are uniformly arranged with a predetermined pitch;

    (ii) an annular frame separated from said magnetic conductor by an air gap and bearing an even number of electromagnets arranged in pairs one opposite to another; and

    (iii) a device for switching the polarity of a potential difference applied to said electromagnets, where a number m1 of the pairs of opposing electromagnets in one electric motor and a number m2 of the pairs of opposing electromagnets in the other electric motor obey the relation m1>

    m2 and the power supply control unit is adapted to feed each electric motor separately and independently.

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