A systematic method for automotive three-way catalyst diagnostics: Experimental results

Brandon M. Dawson, Matthew A. Franchek, Karolos Grigoriadis, Robert W. McCabe, Stephen B. Smith

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Scopus citations

    Abstract

    Presented is a method for model based diagnostics of automotive three-way catalysts (TWC). The model relates measurable engine inputs (engine air mass (AM) and catalyst temperature), to a metric indicating oxygen storage capacity, KTWC. The model structure is identified using orthogonal least squares (OLS). The model coefficients are estimated via the instrumental variable four step (IV4) approach. TWC diagnostics is realized using an information synthesis (IS) technique. This diagnostics method is experimentally validated using data from federal test procedure (FTP) driving cycle for a healthy (full useful life, FUL) and failed (threshold) TWC.

    Original languageEnglish (US)
    Title of host publication2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
    Pages323-329
    Number of pages7
    EditionPART A
    StatePublished - 2009
    Event2008 ASME Dynamic Systems and Control Conference, DSCC 2008 - Ann Arbor, MI, United States
    Duration: Oct 20 2008Oct 22 2008

    Publication series

    Name2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
    NumberPART A

    Other

    Other2008 ASME Dynamic Systems and Control Conference, DSCC 2008
    Country/TerritoryUnited States
    CityAnn Arbor, MI
    Period10/20/0810/22/08

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Industrial and Manufacturing Engineering
    • Mechanical Engineering

    Fingerprint

    Dive into the research topics of 'A systematic method for automotive three-way catalyst diagnostics: Experimental results'. Together they form a unique fingerprint.

    Cite this