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COLD START EMISSION STRATEGY FOR HYBRID VEHICLES

  • US 20090150059A1
  • Filed: 12/05/2007
  • Published: 06/11/2009
  • Est. Priority Date: 12/05/2007
  • Status: Active Grant
First Claim
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1. An engine control module, comprising:

  • an engine starting module that communicates with an electric motor to operate an internal combustion engine including M fuel injectors, and that determines whether manifold pressure is below a manifold pressure threshold; and

    a warming module that communicates with said M fuel injectors to inject fuel into N of M said fuel injectors when said manifold pressure is less than said manifold pressure threshold,wherein N and M are integers and N is less than M.

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