Engine rotation speed controller

Details Engine rotation speed controller Engine rotation speed controller

1996-11-27

1997-12-16

Wolfe, Willis R.

Internal-combustion engines

Engine speed regulator

Idle speed control

12333923, F02D 4116, F02P 515

Patent

active

056973373

ABSTRACT:
An engine rotation speed during idle running is feedback controlled to a target rotation speed. A basic ignition timing is set based on the rotation speed during idle running, and the ignition timing is feedback corrected based on a difference between a target rotation speed and a measured rotation speed. This feedback correction process and other processes including the setting of the basic ignition timing are separated. A high response ignition timing feedback control is performed by advancing the measuring timing of the rotation speed to a point earlier than the correction timing by at least the processing time required to perform the feedback correction process, and preferably by a value near the processing time. A high response fuel injection amount feedback control may also be performed by a similar process.

REFERENCES:
patent: 4884540 (1989-12-01), Kishimoto et al.
patent: 5065717 (1991-11-01), Hosokai et al.
patent: 5133319 (1992-07-01), Ikeda et al.
patent: 5136997 (1992-08-01), Takahashi et al.
patent: 5463993 (1995-11-01), Livshits et al.
patent: 5517964 (1996-05-01), Chen et al.
patent: 5564387 (1996-10-01), Igarashi et al.

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