Measuring and testing – Internal combustion engine or related engine system or... – Exhaust system
Reexamination Certificate
2011-05-24
2011-05-24
McCall, Eric S (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Exhaust system
Reexamination Certificate
active
07946161
ABSTRACT:
An apparatus, system, and method are disclosed for estimating particulate production from a diesel engine. Engine conditions such as fuel rate, exhaust gas recirculation, and fuel injection timing are determined. Based on empirical evidence or theoretical calculations, or both, particulate production markers, each indicating a level of particulate production, are assigned to each engine condition. The markers are combined and the combined marker is used to interpolate between a minimum and a maximum level of particulate production from the engine to estimate a particulate production rate. The production rate may be combined with an oxidation rate to determine a particulate accumulation rate, which may in turn be combined with a particulate load estimate to produce a combined particulate load estimate. The combined estimate may be used to determine whether to initiate regeneration of a diesel particulate filter.
REFERENCES:
patent: 6405528 (2002-06-01), Christen et al.
patent: 6622480 (2003-09-01), Tashiro et al.
patent: 6756904 (2004-06-01), Kinugawa et al.
patent: 6758039 (2004-07-01), Kuboshima et al.
patent: 6829889 (2004-12-01), Saito et al.
patent: 6829890 (2004-12-01), Gui et al.
patent: 6854265 (2005-02-01), Saito et al.
patent: 6907873 (2005-06-01), Hamahata
patent: 6951100 (2005-10-01), Kuboshima et al.
patent: 7208029 (2007-04-01), Shirakawa et al.
patent: 2002/0196153 (2002-12-01), Kinugawa et al.
patent: 2003/0167757 (2003-09-01), Boretto et al.
patent: 2004/0172933 (2004-09-01), Saito et al.
patent: 2004/0204818 (2004-10-01), Trudell et al.
patent: 2005/0198945 (2005-09-01), Okugawa et al.
patent: 2007/0056273 (2007-03-01), Wills
Cummins Inc.
Kunzler Needham Massey & Thorpe
McCall Eric S
LandOfFree
Apparatus, system, and method for estimating particulate... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus, system, and method for estimating particulate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, system, and method for estimating particulate... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2646034