Intake air quantity control method for internal combustion engin

Details Intake air quantity control method for internal combustion engin Intake air quantity control method for internal combustion engin

1984-05-29

1985-04-02

Cross, E. Rollins

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123585, F02D 906

Patent

active

045080747

ABSTRACT:
A method of controlling the quantity of intake air being supplied to an internal combustion engine equipped with means for increasing the intake air quantity by a required amount in response to operating conditions of the engine. While the engine is decelerating in a condition wherein the fuel supply to the engine is interrupted, a detected value of the rotational speed of the engine is compared with a second predetermined rotational speed value which is higher than a first predetermined rotational speed value below which the interruption of the fuel supply to the engine should be terminated. When the rate of decrease in the rotational speed of the engine is larger than a predetermined value at the time the detected value of engine speed decreases across the second predetermined rotational speed value, the intake air quantity increasing means is actuated for a predetermined period of time to increase the quantity of intake air.

REFERENCES:
patent: 4237838 (1980-12-01), Kinugawa et al.
patent: 4306527 (1981-12-01), Kinugawa et al.

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