Method, processing unit, and computer program for operating an internal combustion engine having at least one catalytic converter
Abstract:
A method is directed to operating an internal combustion engine having at least one catalytic converter, wherein control interventions of a lambda control for controlling an exhaust gas composition of the engine are deactivated. The method includes the steps of ascertaining a current exhaust gas composition upstream of the catalytic converter, determining a current oxygen fill level of the catalytic converter on the basis of the ascertained current exhaust gas composition, ascertaining a planned control intervention on a composition of an air-fuel mixture supplied to the engine on the basis of the determined current oxygen fill level of the catalytic converter, ascertaining a current exhaust gas composition downstream of the catalytic converter, ascertaining a future exhaust gas composition downstream of the catalytic converter resulting on the basis of an air-fuel mixture already supplied to the engine, and reactivating the lambda control and specifying a control intervention to be carried out.
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