Method for detecting faults in the air system of internal...

Details Method for detecting faults in the air system of internal... Method for detecting faults in the air system of internal...

2011-08-23

2011-08-23

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Monitoring intake air system

C073S114730

Reexamination Certificate

active

08001834

ABSTRACT:
A method for detecting faults in an air system of an internal combustion engine having an intake manifold and an exhaust manifold includes, but is not limited to the steps of measuring an oxygen concentration of the gas flowing in the exhaust manifold, estimating an intake oxygen control value in the intake manifold and estimating an intake oxygen reference value in the intake manifold based on said oxygen concentration of the gas flowing in the exhaust manifold. The method further includes, but is not limited to the steps of calculating an intake deviation value as a difference between the intake oxygen control value and the intake oxygen reference value and verifying if the intake deviation value is greater than a predetermined first threshold.

REFERENCES:
patent: 5927260 (1999-07-01), Kishimoto et al.
patent: 6253541 (2001-07-01), Sullivan et al.
patent: 7117078 (2006-10-01), Gangopadhyay
patent: 2010/0005872 (2010-01-01), Vennettilli et al.
patent: 2001182574 (2001-07-01), None
patent: 2003293821 (2003-10-01), None
patent: 2006291871 (2006-10-01), None
patent: 2006316706 (2006-11-01), None
patent: 2006019549 (2006-02-01), None

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