Air intake quantity controller for engine

Details Air intake quantity controller for engine Air intake quantity controller for engine

1990-06-05

1991-08-20

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

F02D 906

Patent

active

050405063

ABSTRACT:
An air intake quantity controller for an engine having a control unit for effecting control such that the quantity of auxiliary air is increased to cope with a decelerating condition that occurs when a throttle valve is changed from an open state to a closed state. The control unit inhibits the control operation of increasing the quantity of auxiliary air if either an engine parameter which is proportional to the load on the engine or the engine load is not greater than a predetermined quantity when the throttle valve is in an open state. Thus, when the change in the engine load is relatively small at the time when the throttle valve shifts from an open state to a closed state, the control unit inhibits the control operation of increasing the quantity of auxiliary air, thereby preventing an unnecessary rise in the engine speed.

REFERENCES:
patent: 4444167 (1984-04-01), You
patent: 4700679 (1987-10-01), Otobe et al.
patent: 4709674 (1986-12-01), Bianchi et al.

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