Power plants – Internal combustion engine with treatment or handling of... – By means producing a chemical reaction of a component of the...
Reexamination Certificate
2006-07-25
2008-10-28
Tran, Binh Q (Department: 3748)
Power plants
Internal combustion engine with treatment or handling of...
By means producing a chemical reaction of a component of the...
C060S274000, C060S285000, C060S286000, C123S00100A, C123S463000
Reexamination Certificate
active
07441401
ABSTRACT:
The present invention provides a control apparatus for an internal combustion engine which can make a determination on fuel property with high accuracy without causing a cost increase. The control apparatus for the internal combustion engine includes: an intake air amount control unit for controlling an intake air amount of the engine;an ignition timing control unit for controlling an ignition timing of the engine; a catalyst heat-up control unit for increasing the intake air amount after cold start of the engine and performing control for retarding the ignition timing; an air-fuel ratio detecting unit for detecting an air-fuel ratio of exhaust gas in the engine; and a fuel property determining unit for making a determination on fuel property through a comparison between a parameter value calculated from the air-fuel ratio and a preset reference value when the catalyst heat-up control unit performs the control for retarding the ignition timing.
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Enoki Keiichi
Maeda Osamu
Mitsubishi Electric Corp.
Sughrue & Mion, PLLC
Tran Binh Q
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