Experimental validation of a virtual engine-out NOx sensor for diesel emission control
Motivated by automotive emission legislations, a Virtual N O x sensor is developed. This virtual sensor consists of a real-time, phenomenological model that computes engine-out N O x by using the measured in-cylinder pressure signal from a single cylinder as its main input. The implementation is mad...
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Veröffentlicht in: | International journal of engine research 2019-12, Vol.20 (10), p.1037-1046 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | Motivated by automotive emission legislations, a Virtual
N
O
x
sensor is developed. This virtual sensor consists of a real-time, phenomenological model that computes engine-out
N
O
x
by using the measured in-cylinder pressure signal from a single cylinder as its main input. The implementation is made on a Field Programmable Gate Array–Central Processing Unit architecture to ensure the
N
O
x
computation is ready at the end of the combustion cycle. The Virtual
N
O
x
sensor is tested and validated on an EURO-VI Heavy-Duty Diesel engine platform. The Virtual
N
O
x
sensor is proven to meet the accuracy of a production
N
O
x
sensor for steady-state conditions and has better frequency response compared to the production
N
O
x
sensor. |
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ISSN: | 1468-0874 2041-3149 |
DOI: | 10.1177/1468087419857584 |