Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Reexamination Certificate
2007-01-30
2007-01-30
Solis, Erick (Department: 3747)
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
C123S686000, C123S689000, C701S109000
Reexamination Certificate
active
11397607
ABSTRACT:
A control apparatus for an internal combustion engine can avoid overcorrection at a lean side of air fuel ratio learning correction by unburnt fuel in a blowby gas, and prevent rotational speed reduction and engine stall during air fuel ratio open-loop control after restarting of the engine. A temperature detecting section detects the temperature of the engine based on signals of various sensors, and an air fuel ratio learning correction value changing section updates an air fuel ratio learning correction value in accordance with the engine operating condition. When the engine is stopped with its temperature having not yet reached a predetermined value after started from a cold state thereof, an amount of update of the air fuel ratio learning correction value at a lean side is set in such a manner that the lower a temperature parameter immediately before engine starting, the smaller does the amount of update become.
REFERENCES:
patent: 6161531 (2000-12-01), Hamburg et al.
patent: 6360733 (2002-03-01), Uberti Bona Blotto et al.
patent: 2004/0035405 (2004-02-01), Wagner et al.
patent: 05-248288 (1993-09-01), None
Mitsubishi Denki & Kabushiki Kaisha
Solis Erick
LandOfFree
Control apparatus for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control apparatus for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control apparatus for an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3821876