This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Indirect Adaptive Control of a Three-Way Catalyst
Annotation ability available
Sector:
Language:
English
Abstract
Based on an oxygen storage model of the three-way catalyst (TWC) an indirect adaptive control system is proposed. Utilizing a recursive Markov estimate method, the parameters involved in the model are identified on-line by measuring the upstream and downstream air-to-fuel ratios. These parameters are then used to estimate the relative oxygen level in the TWC which in turn is used as the control variable for the primary controller.
Recommended Content
Authors
Citation
Shafai, E., Roduner, C., and Geering, H., "Indirect Adaptive Control of a Three-Way Catalyst," SAE Technical Paper 961038, 1996, https://doi.org/10.4271/961038.Also In
References
- Padeste, L. Three-Way Catalysts in a Hybrid Drive System: Experimental Study and Kinetic Modelling Zurich 1994
- Germann, H. J. Onder, Ch. H. Geering, H. R Fast Gas Concentration Measurements for Model Validation of Catalytic Converters SAE paper 950477 1995
- Spicher, U. Lepperhoff, G. nstationärverhalten des Abgaskatalysators 56 1995 334 348
- Peters, B. -Weg-Katalysators bei instationärer Motorbetriebsweise RWTH Aachen 1990
- Pattas, K. N. Stamatelos, A. M. Pistikopoulos, P. K. Koltsakis, G. C. Konstandinidis, P. A Volpi, E. Leveroni, E. Transient Modeling of 3-Way Catalytic Converters SAE paper 940934 1994
- Söderström, T. Stoica, R System Identification Prentice-Hall International London 1989