Air-fuel ratio control method for internal combustion engines

Details Air-fuel ratio control method for internal combustion engines Air-fuel ratio control method for internal combustion engines

1991-12-23

1992-10-27

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123672, 123687, 60277, F02M 5100

Patent

active

051580632

ABSTRACT:
An air-fuel ratio control method for an internal combustion engine. The air-fuel ratio of an air-fuel mixture supplied to the engine is feedback-controlled to a predetermined value in response to an output from the exhaust gas ingredient concentration sensor. The temperature of at least one component part of the engine, which should be controlled, is estimated based on the detected temperature of exhaust gases, engine rotational speed, and engine load. The air-fuel ratio of the air-fuel mixture is inhibited from being feedback-controlled but enriched, when the estimated temperature of any one of the at least one component part of the engine is higher than a corresponding predetermined value.

REFERENCES:
patent: 4026106 (1977-05-01), Tamazawa et al.
patent: 4058978 (1977-11-01), Bockelmann et al.
patent: 4192140 (1980-03-01), Yamashita et al.
patent: 4233811 (1980-11-01), Masaki
patent: 4484548 (1984-11-01), Sugusawa et al.
patent: 4729220 (1988-03-01), Torasaka et al.
patent: 4889099 (1989-12-01), Tonishawa
patent: 4913118 (1990-04-01), Watanabe
patent: 4928654 (1990-05-01), Hosaka
patent: 5016595 (1991-05-01), Kawai et al.

Affiliated with

Also associated with

Rating

Air-fuel ratio control method for internal combustion engines 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 method for internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air-fuel ratio control method for internal combustion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-899998