Control apparatus for an internal combustion engine

Details Control apparatus for an internal combustion engine Control apparatus for an internal combustion engine

2007-12-11

2007-12-11

Kwon, John T. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Charge volume varying

C123S478000, C123S480000, C701S103000

Reexamination Certificate

active

11705427

ABSTRACT:
In throttle control, a throttle opening is set with sufficient control accuracy in accordance with the operating state of an engine despite variations in a throttle body and various kinds of sensors. A target effective opening area is calculated from a target amount of intake air, an atmospheric pressure, an intake pipe internal pressure and an intake air temperature by using a flow rate formula for a throttle type flow meter. A target throttle opening is calculated from a correlation map. An actual effective opening area is calculated from the amount of intake air, the atmospheric pressure, the intake pipe internal pressure, and the intake air temperature by using the above-mentioned flow rate formula, and a learning throttle opening is calculated from the correlation map. The target throttle opening is corrected by a throttle opening learning value calculated from a deviation between the target throttle opening and the learning throttle opening.

REFERENCES:
patent: 5448978 (1995-09-01), Hasegawa et al.
patent: 5549092 (1996-08-01), Hasegawa et al.
patent: 7107140 (2006-09-01), Yoshino et al.
patent: 2006/0075996 (2006-04-01), Yoshino et al.
patent: 11-229904 (1999-08-01), None

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