SCR System Optimization and Control Supported by Simulation Tools Aristotle University of Thessaloniki

Format:

Conference/Event

Author/Creator:

Koltsakis, Koltsakis, author.

Contributor:

Bizet, Charles

Calendini, Pierre-Olivier

Dubois, Vincent

Fragkiadoulakis, Pavlos

Georgiadis, Evangelos

Hayat, Olivier

Manetas, Christos

Samaras, Zissis

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

The successful design and especially the control of the SCR system is a challenging process that can be supported by the application of simulation tools. As a first step, we employ physico-chemically informed off-line' models that are calibrated with the help of targeted small- and full-scale tests. Despite their high level of sophistication, this SCR model is able to be integrated in a control-oriented simulation software platform and connected to other powertrain simulation blocks. The target is to use this simulation platform as a virtual environment for the development and optimization of SCR control strategies. The above process is demonstrated in the case of a passenger car SCR. The model is calibrated at both fresh and aged catalyst condition and validated using experimental data from the engine bench under a wide variety of operating conditions. Next, the calibrated model was coupled with embedded control models, developed for Euro 6 passenger car powertrains. The final simulation platform enabled the precalibration and optimization of dosing control strategies, saving significant experimental effort and costs. Finally, it allowed the realization of the sensitivity analysis of the embedded control strategies, a procedure which guaranties the controlled system's robustness to engine dispersion and drift

Notes:

Vendor supplied data

Publisher Number:

2013-01-1075

Access Restriction:

Restricted for use by site license