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MTZ worldwide
Published in: MTZ worldwide 2/2017

01-02-2017 | Development

NH3 Filling Level Control for SCR Catalysts on the Basis of Real-time- capable Physical Models

Authors: Gregor Gelbert, Olaf Friedrichs, Daniel Heß, Lars Henning

Published in: MTZ worldwide | Issue 2/2017

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Based on a physical model of SCR, IAV has developed a software to compute the quantity of AdBlue dosed in SCR systems. The low-dimensional SCR model is computed on the control unit and can be continuously checked against the information measured by the downstream NOx sensor using an extended Kalman filter. This results in a closed-loop control of the NH3 filling level in the SCR catalyst with a high degree of robustness to faults in the hardware of the dosing system. …
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Metadata
Title
NH3 Filling Level Control for SCR Catalysts on the Basis of Real-time- capable Physical Models
Authors
Gregor Gelbert
Olaf Friedrichs
Daniel Heß
Lars Henning
Publication date
01-02-2017
Publisher
Springer Fachmedien Wiesbaden
Published in
MTZ worldwide / Issue 2/2017
Electronic ISSN: 2192-9114
DOI
https://doi.org/10.1007/s38313-016-0162-7

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