Idling speed controller and idling speed control method for inte

Details Idling speed controller and idling speed control method for inte Idling speed controller and idling speed control method for inte

1997-07-23

1999-02-23

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Idle speed control

123327, F02D 4108, F02D 4112

Patent

active

058733450

ABSTRACT:
The idling speed controller for an internal-combustion engine includes a judging device for determining whether the internal-combustion engine is in an idling state and whether a variation in the revolutional speed of the internal-combustion engine is equal to or greater than a predetermined value, an air amount adjuster that adjusts an air amount supplied to the internal-combustion engine when it is determined that the internal-combustion engine is in the idling state and the variation in the revolutional speed of the internal-combustion engine is equal to or greater than the predetermined value; and a device for prohibiting the adjustment of the air amount by the air amount adjuster after the passing of a predetermined time from a change of a throttle valve form an open state to a substantially closed state.

REFERENCES:
patent: 5040506 (1991-08-01), Yamane
patent: 5213076 (1993-05-01), Umemoto
patent: 5261368 (1993-11-01), Umemoto
patent: 5630394 (1997-05-01), Grizzle et al.

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