Experimental validation of a virtual engine-out NOx sensor for diesel emission control

Paul R. Mentink (Corresponding author), D. Escobar Valdivieso, Alexandru Forrai, Xander Seykens, Frank Willems

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)


Motivated by automotive emission legislations, a Virtual NOx sensor is developed. This virtual sensor consists of a real-time, phenomenological model that computes engine-out NOx 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 NOx computation is ready at the end of the combustion cycle. The Virtual NOx sensor is tested and validated on an EURO-VI Heavy-Duty Diesel engine platform. The Virtual NOx sensor is proven to meet the accuracy of a production NOx sensor for steady-state conditions and has better frequency response compared to the production NOx senso
Original languageEnglish
Pages (from-to)1037-1046
Number of pages10
JournalInternational Journal of Engine Research
Issue number10
Publication statusPublished - 1 Dec 2019


  • NO emissions
  • diesel emission control
  • embedded systems
  • real-time combustion modelling
  • virtual sensing
  • NOx emissions


Dive into the research topics of 'Experimental validation of a virtual engine-out NOx sensor for diesel emission control'. Together they form a unique fingerprint.

Cite this