Though a variety of misfire detection methods exists, the number of approaches based on structure-borne sound is scarce due to the difficult interpretation of the accelerometer signals. The procedure presented in this paper combines the EM (Estimation-Maximization) algorithm and a simple parametric pressure model to decompose the structure-borne sound into the individual contributions of each combustion. This decomposition is exploited to develop a simple statistical test for misfire detection based on the shape of the reconstructed pressure. Though it has to be adjusted slightly with empirical data for optimal performance, the test automatically yields an identification threshold as a function of the engine speed and the desired detection probability. Measurement data collected from a four cylinder, 1.8 l Audi SI test bed engine are used to validate the proposed approach.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Misfire Detection in Automotive Engines Using Structure-Borne Sound


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    SAE 2004 World Congress & Exhibition ; 2004



    Erscheinungsdatum :

    08.03.2004




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Misfire Detection in Automotive Engines Using Structure-Borne Sound

    Villarino, R. / Bohme, J. F. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Misfire detection on automotive engines using structure-borne sound

    Villarino,R. / Boehme,J.F. / Univ.Bochum,DE | Kraftfahrwesen | 2004


    2004-01-0520 Misfire Detection in Automotive Engines Using Structure-Borne Sound

    Villarino, R. / Bohme, J. F. / Society of Automotive Engineers | British Library Conference Proceedings | 2004


    Application of Advanced Signal Processing Techniques to Misfire Detection in Automotive Engines

    Ribbens, W. B. / Park, J. / ASME; Dynamic Systems and Control Division et al. | British Library Conference Proceedings | 1994


    Advanced Engine Misfire Detection for SI-Engines

    Lohmann, Andrea / Förster, Jürgen / Ries-Müller, Klaus et al. | SAE Technical Papers | 1997