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Hybrid electric vehicle

  • US 6,651,759 B1
  • Filed: 10/01/2002
  • Issued: 11/25/2003
  • Est. Priority Date: 04/26/2000
  • Status: Expired due to Fees
First Claim
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1. A hybrid electric vehicle comprising:

  • wheels;

    a low inductance electric motor for driving said wheels;

    a capacitor storage system electrically coupled to said electric motor;

    a power unit for providing power to said electric motor;

    a power management controller programmed to maintain said capacitor storage system between a predetermined high voltage set-point and a predetermined low voltage set-point; and

    wherein said low inductance electric motor is capable of delivering power at said predetermined low voltage set-point;

    an inverter capable of delivering power at said low voltage set-point, wherein control algorithms allow a substantially wide fluctuation of capacitor voltage while maintaining power at said inverter relatively steady; and

    wherein voltage levels of said capacitor storage system is maintained by an inversely proportional ratio of vehicle speed to capacitor storage system voltage to optimize performance.

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