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COLD START SYSTEMS AND METHODS

  • US 20110088661A1
  • Filed: 10/20/2009
  • Published: 04/21/2011
  • Est. Priority Date: 10/20/2009
  • Status: Active Grant
First Claim
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1. A cylinder deactivation system comprising:

  • a fuel injection module that injects a desired amount of fuel into a cylinder of an engine during engine cranking; and

    a cold start control module that maintains an intake valve and an exhaust valve associated with said cylinder in respective closed positions while said desired amount of fuel is injected when at least one of an air temperature and a coolant temperature is less than a predetermined cold start temperature.

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