Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1984-06-11
1985-10-22
Nelli, Raymond A.
Internal-combustion engines
Charge forming device
Fuel injection system
123339, 123340, 123480, 123492, F02D 1110, F02D 104, F02B 300
Patent
active
045481806
ABSTRACT:
A control method for an internal combustion engine in which a fuel supply amount is determined in accordance with a detected value of the vacuum in the intake air passage, comprises a first sampling step for sampling the vacuum level in the intake air passage at a first timing synchronized with the engine crankshaft rotation and a second sampling step for sampling the vacuum level at a second timing whose frequency is higher than that of the first timing, and a step for averaging the sampled value of the second sampling step. During an operational state of the engine where the vacuum level in the intake air passage tends to fluctuate, the average value is selected instead of the normal sampled value to determine the fundamental value for the fuel supply amount control.
REFERENCES:
patent: 4047507 (1977-09-01), Nogachi et al.
patent: 4380979 (1983-04-01), Takase
patent: 4402289 (1983-09-01), Ikeura
patent: 4421083 (1983-12-01), Stoltman
patent: 4438744 (1984-03-01), Husegawa
patent: 4467761 (1984-08-01), Husegawa
patent: 4469064 (1984-09-01), Manaka et al.
patent: 4469074 (1984-09-01), Takao et al.
patent: 4479186 (1984-10-01), Takao et al.
Honda Giken Kogyo Kabushiki Kaisha
Nelli Raymond A.
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