Engine idling speed control system for internal combustion engin

Details Engine idling speed control system for internal combustion engin Engine idling speed control system for internal combustion engin

1989-09-18

1990-08-28

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

F02D 902

Patent

active

049516272

ABSTRACT:
In an engine idling speed control system for an internal combustion engine, by feedback controlling increasingly or decreasingly, the amount of intake air fed to the engine with a controlling value variable in accordance with a difference between an actual engine speed and a desired idling speed so as to control the engine to drop speed to the desired idling speed, decreasing variations of the controlling value are restricted to a limit value which is higher when the vehicle is running at a speed higher than a predetermined vehicle creeping speed than when at a running speed lower than the predetermined vehicle creeping speed.

REFERENCES:
patent: 4875447 (1989-10-01), Kiuchi et al.
patent: 4877003 (1989-10-01), Shimomura et al.
patent: 4879983 (1989-11-01), Shimomura et al.
patent: 4883034 (1989-11-01), Yashiki et al.
patent: 4884540 (1989-12-01), Kishimoto et al.
patent: 4887570 (1989-12-01), Meicher

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