Real Driving Engine-Out NOx Emissions Estimation In Modern Diesel Engines

Cover Story November 2019 IFP √Čnergies Nouvelles IFPEN Groupe PSA Real Driving Engine-Out NOx Emissions Estimation Modern Diesel Engines

Groupe PSA and IFPEN have jointly developed a new method to model engine emissions

It performs in many specific situations, and provides opportunities for design and set-up steps. A relevant case, developed here, is an engine-out NOx emissions virtual sensor for diesel applications. The model, based on a neural network and empirical correlations, deals with all real driving conditions and lifetime constraints, like ambient air temperature, humidity and altitude variations. Its development and validation process is based on an extensive series of tests.

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