Air-fuel ratio control device of internal combustion engine

Details Air-fuel ratio control device of internal combustion engine Air-fuel ratio control device of internal combustion engine

2006-03-07

2006-03-07

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S683000

Reexamination Certificate

active

07007685

ABSTRACT:
An air-fuel ratio control apparatus for controlling an air-fuel ratio of a supplied air-fuel mixture of an internal combustion engine to a target air-fuel ratio by a feedback control in accordance with an output signal of an oxygen concentration sensor provided at an exhaust pipe of the internal combustion engine, in which a perturbation control for vibrating the air-fuel ratio periodically to a rich side and a lean side centering on the target air-fuel ratio is executed in accordance with the output signal of the oxygen concentration sensor in a predetermined high load and high rotation operating state of the internal combustion engine.

REFERENCES:
patent: 6065445 (2000-05-01), Motose et al.
patent: 6119453 (2000-09-01), Motose et al.
patent: 03-111647 (1991-05-01), None
patent: 8-177571 (1996-07-01), None
patent: 2002/147236 (2002-05-01), None
patent: 2002/285900 (2002-10-01), None

Affiliated with

Also associated with

Rating

Air-fuel ratio control device of internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Air-fuel ratio control device of internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-fuel ratio control device of internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3534974