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APPARATUS, SYSTEM, AND METHOD FOR REDUCING NITROGEN OXIDE EMISSIONS IN A COMBUSTION ENGINE

  • US 20090211229A1
  • Filed: 02/25/2008
  • Published: 08/27/2009
  • Est. Priority Date: 02/25/2008
  • Status: Active Grant
First Claim
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1. An apparatus for reducing nitrogen oxide emissions in a combustion engine, the:

  • apparatus comprising;

    a shift detection module configured to determine an out of gear (OOG) indicator;

    an emissions module configured to set a minimum fuel target in response to the OOG indicator, the minimum fuel target further based on an exhaust gas recirculation (EGR) flow rate requirement and an EGR oxygen fraction requirement;

    an engine speed module configured to determine an engine speed target based on an engine deceleration profile;

    an engine acceleration module configured to determine a desired net torque based on the engine speed target;

    a load determination module configured to determine an engine load target based on the desired net torque and a base fueling; and

    an actuation module configured to generate an engine load signal to engage an engine load based on the engine load target.

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