Method for leveling out oxidation capacity of catalyst in internal combustion engine exhaust system comprises determining stored oxidant and available oxidant storage capacity and adjusting engine operating parameters

摘要

Method for leveling out the oxidation capacity of a catalyst (52) in the exhaust system of an Internal Combustion (IC engine) (13) comprises; (a) determining the actual value of oxidant stored in the catalyst; (b) determining the available oxidant storage capacity in the catalyst; (c) comparing the two; and (d) adjusting the operating parameters of the engine to adjust the temperature of the catalyst. An Independent claim is included for a system for adjusting the fuel:air mixture in an IC engine cylinder using the method.