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AssigneeRobert Bosch GmbH
InventorsAndreas Pfaeffle, Wolfgang Klenk, Stefan Scherer, Simone Neuberth, Albrecht Schwaderer
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A method is described for operating an internal combustion engine, in particular of a motor vehicle. In the method, a lean air/fuel mixture is burned in a combustion chamber; nitrogen oxides contained in the exhaust gas are stored in an accumulator-type catalytic converter; a storage efficiency, with which the accumulator-type catalytic converter stores the nitrogen oxides contained in the exhaust gas, is ascertained; and the storage efficiency is ascertained as a function of an instantaneous space velocity of the exhaust gases in the accumulator-type catalytic converter. Two efficiencies are ascertained at least as a function of the temperature of the accumulator-type catalytic converter and a space velocity. One of the two efficiencies is ascertained for a great space velocity, and the other efficiency is ascertained for a small space velocity. The storage efficiency is ascertained as a function of the instantaneous space velocity from the two efficiencies.
1-9. (canceled)
A method for operating an internal combustion engine, comprising:
A computer program that when executed results in a performance of the following:
Dependencies are inferred from the claim text.