Internal combustion engine idle control

Details Internal combustion engine idle control Internal combustion engine idle control

2005-05-24

2005-05-24

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Engine speed regulator

Idle speed control

C123S339170, C123S339180

Reexamination Certificate

active

06895928

ABSTRACT:
The present invention relate to idle control in an internal combustion engine and particularly to the control of the air supply to the engine during engine idling. An engine control unit (ECU) monitors the operation of ancillary consumer units to calculate an engine demand depending at least partly on the operation of these units. The ECU also monitors the engine idling speed to determine if the expected engine demand can be met at this engine idling speed. When the engine demand exceeds that available at the idling speed, the ECU determines a desired degree of opening of an air inlet valve to meet the expected engine demand. The ECU is arranged first to open the air inlet valve to a position at which the steady state airflow would exceed that necessary to meet the expected engine demand, and then closes the air inlet valve towards the calculated desired opening.

REFERENCES:
patent: 4617890 (1986-10-01), Kobayashi et al.
patent: 4633093 (1986-12-01), Otobe et al.
patent: 5136997 (1992-08-01), Takahashi et al.
patent: 5153446 (1992-10-01), Shimomura
patent: 5265571 (1993-11-01), Sodeno
patent: 5375574 (1994-12-01), Tomisawa et al.
patent: 5666917 (1997-09-01), Fraser et al.
patent: 5701867 (1997-12-01), Mizutani et al.
patent: 5712786 (1998-01-01), Ueda
patent: 20030172904 (2003-09-01), Kustosch

Affiliated with

Also associated with

Rating

Internal combustion engine idle control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Internal combustion engine idle control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal combustion engine idle control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3407134