Regulating strategy for an NOx trap

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United States of America Patent

PATENT NO 6134882
SERIAL NO

09334609

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for operating an NOx trap for an internal combustion engine includes measuring parameters that influence the delay between the metering of a regenerating agent and its becoming effective in regenerating the NOx trap. Such parameters include the fuel film on an intake wall and the quantity of oxygen bonded in the catalytic converters upstream of the NOx trap. Measuring these parameters helps determine the quantity of regenerating agent or the number of working cycles required for regeneration of the NOx trap.

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Patent Owner(s)

  • BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT;DAIMLERCHRYSLER AG;DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT;DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT (COMPANY NUMBER 722287)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huynh, Ngoc-Hoa Leonberg, DE 12 197
Salzer, Lorenz K F Rutesheim, DE 2 34
Stetter, Ralph Remshalden, DE 4 87

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