Device for estimating the load state of a NO x storage...

Details Device for estimating the load state of a NO x storage... Device for estimating the load state of a NO x storage...

2011-08-16

2011-08-16

Denion, Thomas E (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having sensor or indicator of malfunction, unsafeness, or...

C060S274000, C060S276000, C060S285000

Reexamination Certificate

active

07997065

ABSTRACT:
A device for estimating the loading state of a NOx storage catalytic converter. The device includes a module for determining the oxygen concentration difference between an oxygen concentration present in the exhaust gas upstream of the NOXstorage catalytic converter and an oxygen concentration present in the exhaust gas downstream of the NOXstorage catalytic converter, and a controller for estimating the loading state of the NOXstorage catalytic converter on the basis of said oxygen concentration difference.

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patent: 19922981 (2000-11-01), None

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