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

Brandon M. Dawson, Matthew 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 - Oct 19 2009
Event2008 ASME Dynamic Systems and Control Conference, DSCC 2008 - Ann Arbor, MI, United States
Duration: Oct 20 2008Oct 22 2008

Other

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

ASJC Scopus subject areas

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

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