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METHOD FOR IMPROVING FUEL ECONOMY OF A HYBRID VEHICLE

  • US 20080042615A1
  • Filed: 07/24/2006
  • Published: 02/21/2008
  • Est. Priority Date: 07/24/2006
  • Status: Abandoned Application
First Claim
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1. A fuel economy control method for a hybrid vehicle comprising:

  • determining a state of charge (SOC) of a battery;

    determining a nominal optimum charging voltage of said battery;

    reducing said nominal optimum charging voltage to a fuel economy minimum charging voltage if said SOC is above a predetermined level and said current is within a predetermined range; and

    charging said battery at said fuel economy minimum using a DC/DC converter.

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