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Energy storage and control system for a vehicle electrified drivetrain

  • US 7,984,776 B2
  • Filed: 03/31/2008
  • Issued: 07/26/2011
  • Est. Priority Date: 03/30/2007
  • Status: Active Grant
First Claim
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1. A system for supplying electrical energy to a partial or a total electrified drivetrain of a vehicle, the system comprising:

  • an energy storage system having an energy storage system output, the energy storage system output having voltage in excess of a operating voltage of the electrified drivetrain;

    a first converter having an input coupled to the energy storage system output and a first converter output, the first converter output being at the operating voltage of the electrified drivetrain;

    a supplemental storage bank having an input coupled to the first converter output and a storage bank output, the storage bank output comprising the first converter output combined with a supplemental operating current; and

    a second converter having an input coupled to the storage bank output and a second converter output, the second converter output being at the operating voltage of the electrified drivetrain and at a peak operating current of the electrified drivetrain.

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