Method of controlling idle speed for an internal combustion engi

Details Method of controlling idle speed for an internal combustion engi Method of controlling idle speed for an internal combustion engi

1994-05-04

1996-05-21

Argenbright, Tony M.

Internal-combustion engines

Engine speed regulator

Idle speed control

F02D 4116, F02P 515

Patent

active

055179649

ABSTRACT:
A method of controlling idle speed of an internal combustion engine in an automotive vehicle is provided. The method includes the steps of calculating an acceleration error of the engine and determining whether the calculated acceleration error is greater than a predetermined deadband. The method also includes the steps of opening or closing an Automatic Idle Speed (AIS) stepper motor if the acceleration error is greater than the predetermined deadband and increasing or decreasing a spark advance if the acceleration error is not greater than the predetermined deadband.

REFERENCES:
patent: 4328775 (1982-05-01), Ironside
patent: 5113827 (1992-05-01), Vincent
patent: 5235946 (1993-08-01), Fodale et al.

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