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Electrical systems for electric powered vehicles

  • US 7,228,925 B2
  • Filed: 04/25/2003
  • Issued: 06/12/2007
  • Est. Priority Date: 10/04/2002
  • Status: Active Grant
First Claim
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1. An electric powered vehicle configured to operate without exceeding a maximum horsepower, comprising:

  • a drive wheel;

    an electric motor having a horsepower rating greater than the maximum horsepower, the electric motor being configured to rotate the drive wheel;

    a throttle configured to produce a throttle voltage;

    a speed sensor configured to monitor rotational speed of the drive wheel; and

    a controller configured to determine the maximum voltage that can be applied to the electric motor at the current rotational speed of the drive wheel without exceeding the maximum horsepower, and limit the throttle voltage applied to the electric motor to the maximum voltage.

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