Revolution speed control apparatus for an internal combustion en

Details Revolution speed control apparatus for an internal combustion en Revolution speed control apparatus for an internal combustion en

1991-01-17

1991-12-10

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

F02D 4116

Patent

active

050708376

ABSTRACT:
A revolution speed control apparatus for an internal combustion engine comprises an intake air quantity setting device for setting an intake air quantity to an internal combustion engine, a target revolution speed setting device for setting a target revolution speed for the engine, a revolution speed detector for detecting the revolution speed of the engine, and idling state detector for detecting an idling state of the engine, a revolution speed feedback-control quantity calculating device for calculating a revolution speed feedback control quantity in accordance with an error between the target revolution speed and an actual revolution speed of the engine when the engine is in an idling state, a hot wire type air flow sensor for detecting an intake air quantity to the engine, a correction value memory to transfer with time the revolution speed feedback control quantity in accordance with an error between an actual intake air quantity and a target intake air quantity which is obtained from the intake air quantity set by the intake air quantity setting device and the revolution speed feedback control quantity, and an intake air quantity control device for controlling the intake air quantity on the basis of a memory value stored in the correction value memory and the target intake air quantity.

REFERENCES:
patent: 4563989 (1986-01-01), Peter
patent: 4665871 (1987-05-01), Shimomura et al.
patent: 4667632 (1987-05-01), Shimomura et al.
patent: 4856475 (1989-08-01), Shimomura et al.
patent: 4877003 (1989-10-01), Shimomura et al.
patent: 4879983 (1989-11-01), Shimomura et al.

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