New particulate sensing technologies are currently being readied for production to meet the on-board diagnostic (OBD) regulations associated with diagnosing diesel particulate filter (DPF) efficiency. The threshold levels for diagnosis have been tightened starting in 2013, requiring a new approach beyond the current techniques which often rely on differential pressure sensing across the filter. A new sensor has been developed to directly detect the particles passing through the DPF and estimate the cumulative particle flow. Using this information, an estimate can be made of the filter's efficiency and an associated diagnosis of its ability to meet emissions requirements. In this paper we will discuss the sensor's operating principle, accuracy and repeatability. Experimentally-observed variability of exhaust particulate matter will be compared to simulated deposition of soot1 in a modeling environment.1The authors acknowledge that “soot” is an imprecise colloquial term relating to chimney deposits. Soot is used for brevity in this paper and is intended to be interchangeable, unless otherwise noted, with “particulate matter,” since the sensor in discussion has the potential to collect the full range of particulate matter in the exhaust, as opposed to only a purely carbonaceous fraction [4].


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Sensing of Particulate Matter for On-Board Diagnosis of Particulate Filters


    Weitere Titelangaben:

    Sae Int. J. Engines


    Beteiligte:
    Racine, David (Autor:in) / Fulks, Gary (Autor:in) / Roth, Gregory (Autor:in) / Husted, Harry (Autor:in) / Hocken, Lary (Autor:in) / Nelson, Scott (Autor:in)

    Kongress:

    SAE 2012 World Congress & Exhibition ; 2012


    Erschienen in:

    Erscheinungsdatum :

    16.04.2012


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Sensing of Particulate Matter for On-Board Diagnosis of Particulate Filters

    Husted, H. / Roth, G. / Nelson, S. et al. | British Library Conference Proceedings | 2012


    Particulate Matter Sensor for On Board Diagnostics (OBD) of Diesel Particulate Filters (DPF)

    Genssle, Andreas / Kamp, Bernhard / Schittenhelm, Henrik et al. | SAE Technical Papers | 2010


    Particulate matter sensor for on board diagnostics ( OBD ) of diesel particulate filters ( DPF )

    Ochs,T. / Schittenhelm,H. / Genssle,A. et al. | Kraftfahrwesen | 2010


    Retrofitting of Diesel Particulate Filters - Particulate Matter and Nitrogen Dioxide

    Richards, P. / Kalischewski, W. / Society of Automotive Engineers | British Library Conference Proceedings | 2003


    Retrofitting of Diesel particulate filters - particulate matter and nitrogen dioxide

    Richards,P. / Kalischewski,W. / Associated Octel,London,GB et al. | Kraftfahrwesen | 2003