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

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 Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference 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, K_TWC. 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 language	English (US)
Title of host publication	2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
Pages	323-329
Number of pages	7
Edition	PART A
State	Published - 2009
Event	2008 ASME Dynamic Systems and Control Conference, DSCC 2008 - Ann Arbor, MI, United States Duration: Oct 20 2008 → Oct 22 2008

Publication series

Name	2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008
Number	PART A

Other

Other	2008 ASME Dynamic Systems and Control Conference, DSCC 2008
Country/Territory	United States
City	Ann Arbor, MI
Period	10/20/08 → 10/22/08

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Mechanical Engineering

Cite this

Dawson, B. M., Franchek, M. A., Grigoriadis, K., McCabe, R. W., & Smith, S. B. (2009). A systematic method for automotive three-way catalyst diagnostics: Experimental results. In 2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008 (PART A ed., pp. 323-329). (2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008; No. PART A).

A systematic method for automotive three-way catalyst diagnostics : Experimental results. / Dawson, Brandon M.; Franchek, Matthew A.; Grigoriadis, Karolos; McCabe, Robert W.; Smith, Stephen B.

2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008. PART A. ed. 2009. p. 323-329 (2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008; No. PART A).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Dawson, BM, Franchek, MA, Grigoriadis, K, McCabe, RW & Smith, SB 2009, A systematic method for automotive three-way catalyst diagnostics: Experimental results. in 2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008. PART A edn, 2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008, no. PART A, pp. 323-329, 2008 ASME Dynamic Systems and Control Conference, DSCC 2008, Ann Arbor, MI, United States, 10/20/08.

Dawson, Brandon M. ; Franchek, Matthew A. ; Grigoriadis, Karolos ; McCabe, Robert W. ; Smith, Stephen B. / A systematic method for automotive three-way catalyst diagnostics : Experimental results. 2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008. PART A. ed. 2009. pp. 323-329 (2008 Proceedings of the ASME Dynamic Systems and Control Conference, DSCC 2008; PART A).

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AB - 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.

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

Abstract

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ASJC Scopus subject areas

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