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
Hauptverfasser: Mentink, Paul, Escobar-Valdivieso, Daniel, Forrai, Alexandru, Seykens, Xander, Willems, Frank
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Sprache:eng
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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.
ISSN:1468-0874
2041-3149
DOI:10.1177/1468087419857584