Internal-combustion engines – Charge forming device – Including exhaust gas condition responsive means
Patent
1993-10-04
1996-04-02
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Including exhaust gas condition responsive means
123696, F02D 4114
Patent
active
055031340
ABSTRACT:
A fuel control system operates under closed-loop control to sense the oxygen content of the combustion products of an internal combustion engine along with the engine angular velocity and air flow through the intake manifold and to alter the composition of air and fuel combusted by the engine, such that under stable closed-loop control, the air/fuel composition generally oscillates about stoichiometry between a minimum and a maximum value. The rate of fluctuation of the oxygen content of the combustion products is monitored and if the oxygen content does not switch when expected, then a transient change in the exhaust content of the exhaust gas is assumed and a transient response is generated. The transient response comprises the generation of an air/fuel ratio substantially equal in magnitude and time but opposite in direction from the detected transient. After the transient response, periodic fluctuation of the air/fuel ratio between the minimum and maximum values is resumed.
REFERENCES:
patent: 3782347 (1974-01-01), Schmidt et al.
patent: 4290400 (1981-09-01), Pomerantz
patent: 4357923 (1982-11-01), Hideg
patent: 4635200 (1987-01-01), Egami et al.
SAE Technical Paper Series A Closed-Loop A/F Control Model for Internal Combustion Engines, Hamburg, et al. Jun., 1980.
SAE Technical Paper Series Fuel Injection ControlSystems that Improve Three Way Catalyst Conversion Efficiency, Katashiba, et al. Feb., 1991.
DeLosh Robert G.
Hamburg Douglas R.
Dolinar Andrew M.
Ford Motor Company
Lippa Alan J.
May Roger L.
LandOfFree
Fuel controller with air/fuel transient compensation 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 controller with air/fuel transient compensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel controller with air/fuel transient compensation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2010575