Dynamic modeling of a three-way catalyst for SI engine exhaust emission control
- 1 January 2000
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Control Systems Technology
- Vol. 8 (5) , 767-776
- https://doi.org/10.1109/87.865850
Abstract
| Automotive emissions are severely regulated Since 1980, a three - way catalyst (TWC) has been used to convert harmful emissions of hydrocarbons, carbon monox - ide, and oxides of nitrogen into less harmful gases in order to meet these regulations The TWC's e ciency of conversion of these gases is primarily dependent on the mass ratio of air to fuel (A=F) in the mixture leaving the exhaust manifold and entering the catalyst, the velocity of the exhaust mass, and the temperature of the catalyst The goal of this paper is to develop a dynamic, control - oriented model of a TWC First, the measurement capabilities will be described Then, a simpli ed, dynamic catalyst model that can be determined on the basis of medium bandwidth A=F measurements and low bandwidth temperature and emission measurements will be developed and validatedKeywords
This publication has 1 reference indexed in Scilit:
- An application of optimization methods to the automotive emissions control problemPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1997