Dynamic Surface Control of Engine Exhaust Hydrocarbons and Catalyst Temperature for Reduced Coldstart Emissions
Pannag R Sanketi, Carlos Zavala, Karl Hedrick

Citation
Pannag R Sanketi, Carlos Zavala, Karl Hedrick. "Dynamic Surface Control of Engine Exhaust Hydrocarbons and Catalyst Temperature for Reduced Coldstart Emissions". Proc. of International Federation of Automatic Control (IFAC) Conference, July, 2005; Prague, Czech Rep.

Abstract
Almost three quarters of the hydrocarbon (HC) emissions emitted by an automobile in a typical drive-cycle are produced during the first three minutes of its operation called the coldstart period. In this paper, we propose a way to decrease cold start emissions. A Model-Based paradigm is used to aid the generation of an efficient controller. The controller is built around a mean value engine model and a simplified catalyst model characterized by thermal dynamics, oxygen storage and static efficiency curves. It is shown that the control of engine-out exhaust gas temperature for faster catalyst light-off could be detrimental to the catalyst. A control scheme comprising engine-out hydrocarbon emissions control and catalyst temperature control through dynamic surface control is developed to reduce the tailpipe emissions. It is shown that reduced tailpipe emissions can be chieved without the risk of damaging the catalyst.

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• HTML

  Pannag R Sanketi, Carlos Zavala, Karl Hedrick. <a
  href="http://chess.eecs.berkeley.edu/pubs/86.html"
  >Dynamic Surface Control of Engine Exhaust Hydrocarbons
  and Catalyst Temperature for Reduced Coldstart
  Emissions</a>, Proc. of International Federation of
  Automatic Control (IFAC) Conference, July, 2005; Prague,
  Czech Rep.

• Plain text

  Pannag R Sanketi, Carlos Zavala, Karl Hedrick. "Dynamic
  Surface Control of Engine Exhaust Hydrocarbons and Catalyst
  Temperature for Reduced Coldstart Emissions". Proc. of
  International Federation of Automatic Control (IFAC)
  Conference, July, 2005; Prague, Czech Rep.

• BibTeX

  @inproceedings{SanketiZavalaHedrick05_DynamicSurfaceControlOfEngineExhaustHydrocarbonsCatalyst,
      author = {Pannag R Sanketi and Carlos Zavala and Karl Hedrick},
      title = {Dynamic Surface Control of Engine Exhaust
                Hydrocarbons and Catalyst Temperature for Reduced
                Coldstart Emissions},
      booktitle = {Proc. of International Federation of Automatic
                Control (IFAC) Conference},
      month = {July},
      year = {2005},
      note = {Prague, Czech Rep.},
      abstract = {Almost three quarters of the hydrocarbon (HC)
                emissions emitted by an automobile in a typical
                drive-cycle are produced during the first three
                minutes of its operation called the coldstart
                period. In this paper, we propose a way to
                decrease cold start emissions. A Model-Based
                paradigm is used to aid the generation of an
                efficient controller. The controller is built
                around a mean value engine model and a simplified
                catalyst model characterized by thermal dynamics,
                oxygen storage and static efficiency curves. It is
                shown that the control of engine-out exhaust gas
                temperature for faster catalyst light-off could be
                detrimental to the catalyst. A control scheme
                comprising engine-out hydrocarbon emissions
                control and catalyst temperature control through
                dynamic surface control is developed to reduce the
                tailpipe emissions. It is shown that reduced
                tailpipe emissions can be chieved without the risk
                of damaging the catalyst.},
      URL = {http://chess.eecs.berkeley.edu/pubs/86.html}
  }
  

Posted by Pannag R Sanketi on 11 May 2006.
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