A great deal of current automotive engineering effort involves the development of three-way catalyst-based emission control systems that seek to minimize fuel consumption while simultaneously meeting stringent exhaust emission standards. Mitigation of emissions is enhanced in a three-way catalyst system when the system air-fuel ratio (A/F) is in proximity to ideal burning or stoichiometry.This paper is concerned with extending methods used for determining engine calibrations to closed-loop systems with three-way catalysts. The paper presents a simulation model that employs experimentally obtained data to characterize the A/F control loop.
Stoichiometric Air-Fuel Ratio Control Analysis
Sae Technical Papers
SAE International Congress and Exposition ; 1981
1981-02-01
Conference paper
English
Stoichiometric Air-Fuel Ratio Control Analysis
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