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

Magnus Andersson; Bengt Johansson; Anders Hultqvist; Christof Noehre

doi:10.4271/2006-01-3329

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

Physical Sciences and Engineering

Research output: Contribution to conference › Paper › peer-review

38 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 language	English (US)
DOIs	https://doi.org/10.4271/2006-01-3329
State	Published - Dec 1 2006
Event	Powertrain and Fluid Systems Conference and Exhibition - Toronto, ON, Canada Duration: Oct 16 2006 → Oct 19 2006

Other

Other	Powertrain and Fluid Systems Conference and Exhibition
Country/Territory	Canada
City	Toronto, ON
Period	10/16/06 → 10/19/06

ASJC Scopus subject areas

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

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title = "A predictive real time nox model for conventional and partially premixed diesel combustion",

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.",

author = "Magnus Andersson and Bengt Johansson and Anders Hultqvist and Christof Noehre",

year = "2006",

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T1 - A predictive real time nox model for conventional and partially premixed diesel combustion

AU - Andersson, Magnus

AU - Johansson, Bengt

AU - Hultqvist, Anders

AU - Noehre, Christof

PY - 2006/12/1

Y1 - 2006/12/1

N2 - 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.

AB - 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.

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U2 - 10.4271/2006-01-3329

DO - 10.4271/2006-01-3329

M3 - Paper

T2 - Powertrain and Fluid Systems Conference and Exhibition

Y2 - 16 October 2006 through 19 October 2006

ER -

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

Abstract

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