Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1988-05-13
1989-09-12
Nelli, R. A.
Internal-combustion engines
Charge forming device
Fuel injection system
123493, F02M 5100
Patent
active
048649996
ABSTRACT:
In a fuel control apparatus by which a basic fuel quantity T.sub.p is first calculated on the basis of a detected intake air flow rate Q and a detected engine speed N as T.sub.p =KQ/N (K: constant) and the calculated basic fuel quantity T.sub.p is corrected on the basis of a correction coefficient COEF related to various engine operating conditions (e.g. coolant temperature), air/fuel ratio feedback correction coefficient .alpha., and a battery voltage correction coefficient T.sub.s as T.sub.i =T.sub.p .times.COEF.times..alpha.+T.sub.s, when an engine is accelerated, an initial fuel increment coefficient KAC.sub.0 is determined on the basis of throttle opening rate and engine speed, and added to the correction coefficient as COEF+KAC.sub.0, and thereafter the initial fuel increment coefficient KAC.sub.0 is reduced at a small coefficient decrement rate DKAC.sub.1 at lower engine speed to prevent hesitation, but at a large coefficient decrement rate DKAC.sub.2 at higher engine speed to prevent an overrich air/fuel ratio (excessive CO exhaust quantity).
REFERENCES:
patent: 4520783 (1985-06-01), Matsushita et al.
patent: 4561404 (1985-12-01), Kando et al.
patent: 4685436 (1987-08-01), Oba
patent: 4690117 (1987-09-01), Isobe et al.
patent: 4707792 (1987-11-01), Naitou
patent: 4711218 (1987-12-01), Kabosin
patent: 4751909 (1988-06-01), Otobe
patent: 4781163 (1988-11-01), Jantelat et al.
Nelli R. A.
Nissan Motor Co,. Ltd.
LandOfFree
Fuel control apparatus for 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 Fuel control apparatus for engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel control apparatus for engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-908815