Patent ID: 11933239
Assignee: ROBERT BOSCH GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A method for 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 internal combustion engine are deactivated, comprising:
ascertaining a current exhaust gas composition upstream of the at least one catalytic converter,
determining a current oxygen fill level of the at least one 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 internal combustion engine on the basis of the determined current oxygen fill level of the at least one catalytic converter,
ascertaining a current exhaust gas composition downstream of the at least one catalytic converter,
ascertaining a future exhaust gas composition downstream of the at least one catalytic converter resulting on the basis of an air-fuel mixture already supplied to the internal combustion engine, and
reactivating the lambda control and specifying a control intervention to be carried out as a function of the planned control intervention and the current exhaust gas composition downstream of the at least one catalytic converter, and/or as a function of the planned control intervention and the future exhaust gas composition.