Power plants – Internal combustion engine with treatment or handling of... – Having sensor or indicator of malfunction – unsafeness – or...
Reexamination Certificate
2006-12-18
2009-12-08
Tran, Binh Q. (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
Having sensor or indicator of malfunction, unsafeness, or...
C060S274000, C060S276000, C060S295000, C060S297000, C073S118040
Reexamination Certificate
active
07628007
ABSTRACT:
Method and system of onboard diagnostics in engine emissions monitoring, particularly for detecting anomalous cylinder behavior. In some embodiments, at least one sensor in the exhaust path measures electric charge that is indicative of particulate matter. In some embodiments, at least one sensor measures oxides of nitrogen. The indications of instantaneous emissions can be used to effect real-time adjustments in engine control, and can be logged for maintenance purposes.
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Kittelson David B.
Krafthefer Brian C.
Ma Hongbin
Rhodes Michael L.
Fredrick Kris T.
Honeywell International , Inc.
Tran Binh Q.
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