Internal-combustion engines – Charge forming device – Including cylinder pressure or temperature responsive means
Patent
1988-09-22
1989-12-19
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Including cylinder pressure or temperature responsive means
123489, 123492, 123493, F02D 4114
Patent
active
048875759
ABSTRACT:
A system and method for determining and controlling the mixture ratio of an air-fuel mixture supplied to an internal combustion engine in which the air-fuel mixture ratio is estimated from a maximum internal pressure of an engine cylinder. The estimated air-fuel mixture ratio is then positively ascertained on the basis of a determination result derived by a weighting processing calculation of input signals indicating various engine and vehicle operating conditions affecting the change in the air-fuel mixture ratio using a weight vector with a reference signal. The air-fuel mixture is controlled on the basis of the ascertained air-fuel mixture ratio. Furthermore, each parameter of the weight vector is learned and corrected in a direction toward which a correct percentage of the determination of the rich-side or lean-side air-fuel mixture ratio by the weight calculation is increased.
REFERENCES:
patent: 4417556 (1983-11-01), Latsch
patent: 4561401 (1985-12-01), Hata et al.
patent: 4624229 (1986-11-01), Matekunas
patent: 4690115 (1987-09-01), Conlogue et al.
patent: 4789358 (1988-11-01), Kasanami et al.
Dolinar Andrew M.
Nissan Motor Company Limited
LandOfFree
System and method for controlling a mixture ratio of air-fuel mi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for controlling a mixture ratio of air-fuel mi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for controlling a mixture ratio of air-fuel mi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1897107