Air fuel ratio control system for an internal combustion engine

Details Air fuel ratio control system for an internal combustion engine Air fuel ratio control system for an internal combustion engine

1985-09-24

1987-05-19

Wolfe, Jr., Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123585, F02M 2506

Patent

active

046658831

ABSTRACT:
An air/fuel ratio control system for an internal combustion engine provides a mixture leaner than a predetermined reference value when a detected engine load is in a light load range. In order to produce a required engine power during a transitional period, the system detects the speed of variation of an operating parameter used for the calculation of air/fuel ratio and controls the air/fuel ratio toward the reference level even though the magnitude of the detected engine load is in the light load range. Preferably, an EGR rate is also made smaller upon occurrence of a rapid change of the operating parameter so as to prevent the power down of the engine during the transitional period.

REFERENCES:
patent: 4349005 (1982-09-01), Gotoh et al.
patent: 4386597 (1983-06-01), Ootaka et al.
patent: 4387694 (1983-06-01), Yoshiba et al.
patent: 4429676 (1984-02-01), Gotoh et al.
patent: 4454854 (1984-06-01), Gotoh et al.

Affiliated with

Also associated with

Rating

Air fuel ratio control system for an 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 system for an 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 system for an internal combustion engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557754