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Multiple induction electric motor and vehicle

  • US 8,950,529 B2
  • Filed: 10/04/2013
  • Issued: 02/10/2015
  • Est. Priority Date: 08/31/2009
  • Status: Active Grant
First Claim
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1. A method for reducing an operating temperature of a driving system and thereby reducing an operating current of the driving system, comprising:

  • receiving a direct current power input;

    producing a first variable frequency alternating current control signal from said direct current power input;

    separately producing a second variable frequency alternating current control signal from said direct current power input, synchronized to said first variable frequency alternating current control signal;

    producing a first rotational force in response to said first variable frequency alternating current control signal, and applying said first rotational force to a shaft; and

    separately producing a second rotational force in response to said second variable frequency alternating current control signal, and applying said second rotational force to said shaft, said shaft summing said first rotational force with said second rotational force.

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