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New signal processing techniques for enhanced knock detection in SI engines

Zadnik, Martin and Galtier, Frédéric and Vingerhoeds, Rob A. and Vincent, François New signal processing techniques for enhanced knock detection in SI engines. (2006) In: 2nd Conference Knock Control for SI Engines, Trends in Production-Engine Development, 18 September 2006 - 19 September 2006 (Berlin, Germany). (Unpublished)

(Document in English)

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Official URL: http://www.iav.com/_downloads/de/termine/iav_tagungen/Programm_Klopftagung.pdf


Standard knock sensor signal processing typically consists of band-pass filtering followed by integration over a specified time/angular window. The resulting knock intensity serves as input to knock detection & correction part of an engine management system (ECU). While this treatment was initially performed by dedicated ICs, it has recently been implemented by ECU software, leading to a digital signal processing approach. In spite of some evident advantages of this approach, the processing method itself had not changed significantly. In this paper, the possibilities of taking better advantage of digital signal processing techniques are discussed and investigations on some possibilities for improving the overall knock detection performance by means of enhancing the signal processing techniques are presented.

Item Type:Conference or Workshop Item (Paper)
Additional Information:10 pages
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Siemens VDO Automotive (FRANCE)
Other partners > Association pour le Management des Projets d'Etude et de REcherche - AMPERE (FRANCE)
Laboratory name:
Département d'Electronique, Optronique et Signal - DEOS (Toulouse, France) - Signal, Communication, Antenne et Navigation - SCAN
Siemens VDO Automotive
Deposited On:07 Apr 2008 13:18

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