Estimation of the temperature of a catalytic converter and corresponding applications

摘要

The aim of the invention is to estimate a temperature jump (&Dgr;T) of a catalytic converter of an internal combustion engine in the event of a change in the composition of the exhaust gas. To this end, a quantity of a reactand (SI) stored in the catalytic converter is monitored (2-7), and the heating (&Dgr;T) of the catalytic converter resulting from the reaction heat released during the reaction of the stored reactand is assumed (13, 14, 16, 17) as the temperature jump (&Dgr;T).