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Adaptive idle speed control for a direct injected internal combustion engine

  • US 6,883,495 B1
  • Filed: 10/14/2003
  • Issued: 04/26/2005
  • Est. Priority Date: 10/14/2003
  • Status: Expired due to Term
First Claim
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1. A method of optimizing idle speed for a fuel injected engine comprising the steps of:

  • determining instantaneous current requirements of electronics of a watercraft;

    from the instantaneous current requirements, determining a minimum engine speed necessary to drive a battery charging device of the watercraft; and

    adjusting, on-the-fly, idle speed of the fuel injected engine to the minimum engine speed.

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