Internal-combustion engines – Charge forming device – Fuel injection system
Reexamination Certificate
2006-01-10
2006-01-10
Argenbright, Tony M. (Department: 3747)
Internal-combustion engines
Charge forming device
Fuel injection system
C123S494000
Reexamination Certificate
active
06983738
ABSTRACT:
In an engine control system, an accelerating condition is detected from the phase of a crankshaft and an induction air pressure. A stroke condition is detected from a rotational angle of the crankshaft and an induction air pressure. A differential pressure between induction pipe pressures detected at a predetermined crank angle on an exhaust stroke and an induction stroke and induction pipe pressures resulting at the same crank angle on the same strokes is calculated as an induction air pressure difference ΔPA-MAN. When ΔPA-MANis equal to or larger than the threshold, an accelerating condition is determined to be occurring, and fuel in acceleration is immediately added to a steady-state fuel injection amount for injection. To improve accelerating condition and the induction air amount detection accuracy, a volume from a throttle valve to an induction port is made equal to or smaller than the volume of the stroke of a cylinder.
REFERENCES:
patent: 4658787 (1987-04-01), Takizawa
patent: 5211150 (1993-05-01), Anzai
patent: 5635634 (1997-06-01), Reuschenbach et al.
patent: 6109244 (2000-08-01), Yamamoto et al.
patent: 6131554 (2000-10-01), Ito et al.
patent: 6202626 (2001-03-01), Ito et al.
patent: 60-60223 (1985-04-01), None
patent: 10-184438 (1998-07-01), None
patent: 10-227252 (1998-08-01), None
patent: 11-036969 (1999-02-01), None
patent: 2002-188536 (2002-07-01), None
Argenbright Tony M.
Hogan & Hartson LLP
Yamaha Hatsudoki Kabushiki Kaisha
LandOfFree
Engine control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Engine control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Engine control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3526440