Air/fuel control system for flexible fuel vehicles

Details Air/fuel control system for flexible fuel vehicles Air/fuel control system for flexible fuel vehicles

1992-11-16

1993-10-19

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

123 1A, F02B 7512

Patent

active

052536319

ABSTRACT:
A proportional plus integral feedback control system is responsive to a two-state, filtered output signal from an exhaust gas oxygen sensor. The sensor's output is offset from stoichiometric switching by the presence of alcohol in the fuel blend. A correcting bias term is calculated and the average value of the feedback variable is appropriately biased by selection of the proportional plus integral terms.

REFERENCES:
patent: 4391253 (1983-07-01), Ito
patent: 4438749 (1984-03-01), Schwippert
patent: 4461258 (1984-07-01), Becker et al.
patent: 4479464 (1984-10-01), Kondo et al.
patent: 4481908 (1984-11-01), Iida
patent: 4522180 (1985-06-01), Matsuoka et al.
patent: 4526001 (1985-07-01), Burns et al.
patent: 4594968 (1986-06-01), Degobert et al.
patent: 4625698 (1986-12-01), Jamrog
patent: 4706629 (1987-11-01), Wineland et al.
patent: 4853862 (1989-08-01), Shiraishi et al.
patent: 4945863 (1990-08-01), Schmitz et al.
patent: 4945880 (1990-08-01), Gonze et al.
patent: 4945881 (1990-08-01), Gonze et al.
patent: 4945882 (1990-08-01), Brown et al.
patent: 4945885 (1990-08-01), Gonze et al.
patent: 4957087 (1990-09-01), Ota
patent: 4967714 (1990-11-01), Inoue
patent: 4982709 (1991-01-01), Oota
patent: 4986241 (1991-01-01), Inoue et al.
patent: 5094208 (1992-03-01), Adam et al.
patent: 5144915 (1982-09-01), Grabs

Affiliated with

Also associated with

Rating

Air/fuel control system for flexible fuel vehicles 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 control system for flexible fuel vehicles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air/fuel control system for flexible fuel vehicles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1345487