Bayerische Motoren Werke Aktiengesellschaft

Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Audi Ag

Volkswagen Ag

Daimler Chrysler Ag

Ulf-Peter Schmeling

Lorenz K Salzer

Ngoc-Hoa Huynh

Peter Gerl

A process and a system are used for controlling the mixture composition for an Otto engine with an NOstorage catalyst during a regeneration phase. The process includes controlling, to the value of one, a &#x3bb;-value (&#x3bb;) of an exhaust gas fed to the NOstorage catalyst during a regeneration phase as a function of a &#x3bb;-value (&#x3bb;) of an exhaust gas emitted by the NOstorage catalyst. The system includes a control device for controlling, to the value of one, a &#x3bb;-value (&#x3bb;) of the exhaust gas fed to the NOstorage catalyst during the regeneration phase as a function of the &#x3bb;-value (&#x3bb;) of the exhaust gas emitted by the NOstorage catalyst.

Process and system for controlling the mixture composition for a spark ignition Otto engine with an NOx storage catalyst during a regeneration phase

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Rutesheim, Germany

Ulf-Peter Schmeling