METHOD AND SYSTEM FOR IMPROVING DIAGNOSIS OF A CATALYST

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200025056A1
SERIAL NO

16040362

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods and systems are provided for diagnosing operation of a catalyst in the presence of oxygen sensor degradation over a vehicle life cycle. The methods and systems described herein filter the output of one oxygen sensor according to a time constant of a different oxygen sensor so that determination of a catalyst index ratio is compensated for oxygen sensor degradation.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bagnasco, Andrew Plymouth, US 2 0
Fredericks, Edward Wyandotte, US 1 0
Santillo, Mario Canton, US 3 1

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