Title :
Piecewise affine modeling of NOx emission produced by a diesel engine
Author :
Vereshchaga, Yana ; Stadlbauer, Stephan ; Bako, L. ; del Re, Luigi
Author_Institution :
Johannes Kepler Univ., Linz, Austria
Abstract :
Nitrogen oxides (NOx) emission control is a critical task of engine control as far as raw emissions and after treatment is concerned. Hardware NOx sensors are now available, but they still have several limitations, starting from their costs. Against this background, a lot of work inside both companies and in the academy has been done to develop virtual sensors for these emissions. In this paper, we propose a minimum-complexity model in the form of a piecewise affine model, and show that its performance is comparable to more complex models and better than conventional sensors if dynamic response is concerned.
Keywords :
air pollution control; diesel engines; sensors; virtual machines; NOx emission control; diesel engine; hardware NOx sensors; piecewise affine modeling; virtual sensor development; Computational modeling; Engines; Estimation; Measurement uncertainty; Sensor systems; Vectors;
Conference_Titel :
Control Conference (ECC), 2013 European
Conference_Location :
Zurich