Patent ID: 11913399
Assignee: ROBERT BOSCH GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. A non-transitory machine-readable storage medium on which is stored a computer program for adjusting a fuel mass to be injected into an internal combustion engine, the internal combustion engine including an intake tract, at least one cylinder, and an exhaust tract, the computer program, when executed by a processor, causing the processor to perform the following steps:
ascertaining an air mass introduced into the at least one cylinder of the internal combustion engine;
determining a fuel mass to be injected into the at least one cylinder of the internal combustion engine;
measuring using a lamda sensor an air-fuel ratio in the exhaust tract of the internal combustion engine;
temporally adjusting the measured air-fuel ratio to obtain a time-adjusted air-fuel ratio, wherein the temporal adjustment of the measured air-fuel ratio is ascertained based on a model of the exhaust track which takes into account a storage behavior of an exhaust gas line between an exhaust valve of the internal combustion engine and a position at which the air-fuel ratio is measured by the lambda sensor, and based on a response behavior of the lambda sensor;
determining a first wall film fuel mass based on the time-adjusted air-fuel ratio, the ascertained introduced air mass, and the determined fuel mass to be introduced; and
adjusting the fuel mass to be injected based on the calculated first wall film fuel mass.