A Simplified Model for the Dynamics of a Three-Way Catalytic Converter

Paper #:
  • 2000-01-0652

Published:
  • 2000-03-06
Citation:
Peyton Jones, J., Roberts, J., Bernard, P., and Jackson, R., "A Simplified Model for the Dynamics of a Three-Way Catalytic Converter," SAE Technical Paper 2000-01-0652, 2000, https://doi.org/10.4271/2000-01-0652.
Pages:
10
Abstract:
The transient response of a catalytic converter to fluctuations in exhaust gas composition has a significant impact on tailpipe emissions. Advanced emission control strategies therefore need to incorporate a model for such behavior, which must also be sufficiently simple for practical implementation in-vehicle. To this end, a variety of semi-empirical models have been developed, including most recently a number of oxygen “storage-dominated” models. In this paper a new storage-dominated model is developed, which includes for the first time the effects of space velocity. The parameters of model may be estimated using the invariant embedding method.
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