A predictive real time nox model for conventional and partially premixed diesel combustion

Magnus Andersson*, Bengt Johansson, Anders Hultqvist, Christof Noehre

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

36 Scopus citations

Abstract

A previously presented robust and fast diagnostic NOx model was modified into a predictive model. This was done by using simple yet physically-based models for fuel injection, ignition delay, premixed heat release rate and diffusion combustion heat release rate. The model can be used both for traditional high temperature combustion and for high-EGR low temperature combustion. It was possible to maintain a high accuracy and calculation speed of the NOx model itself. The root mean square of the relative model error is 16 % and the calculation speed is around one second on a PC. Combustion characteristics such as ignition delay, CA50 and the general shape of the heat release rate are well predicted by the combustion model. The model is aimed at real time NOx calculation and optimization in a vehicle on the road.

Original languageEnglish (US)
DOIs
StatePublished - Dec 1 2006
EventPowertrain and Fluid Systems Conference and Exhibition - Toronto, ON, Canada
Duration: Oct 16 2006Oct 19 2006

Other

OtherPowertrain and Fluid Systems Conference and Exhibition
CountryCanada
CityToronto, ON
Period10/16/0610/19/06

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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