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PROPULSION SYSTEM

  • US 20080276824A1
  • Filed: 05/07/2007
  • Published: 11/13/2008
  • Est. Priority Date: 05/07/2007
  • Status: Active Grant
First Claim
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1. A propulsion system for a vehicle, comprising:

  • a first traction drive system comprising an engine and a first drive motor, wherein the engine is operable to supply energy to the first drive motor to propel the vehicle; and

    a second traction drive system comprising a second drive motor and a first energy storage device, wherein the second drive motor is operable to both supply energy to the first energy storage device and to receive energy from the first energy storage device.

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