Method of learn-controlling air-fuel ratio for internal combusti

Details Method of learn-controlling air-fuel ratio for internal combusti Method of learn-controlling air-fuel ratio for internal combusti

1984-05-03

1985-09-10

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123486, 123488, F02B 300

Patent

active

045399581

ABSTRACT:
In a method wherein a fuel injection time duration is allowed to perform a proportional-plus-integral action by the use of an air-fuel ratio feedback correction coefficient obtained from the output of an O.sub.2 sensor thereby to control an air-fuel ratio to a target air-fuel ratio, a correction value for allowing a mean value of the air-fuel ratio feedback correction coefficient to approach a predetermined value is varied every time the air-fuel ratio feedback correction coefficient skips a plurality of times, thereby to learn-control the air-fuel ratio of an air-fuel mixture to be a stoichiometric one.

REFERENCES:
patent: 4122811 (1978-10-01), Bowler
patent: 4130095 (1978-12-01), Bowler
patent: 4200064 (1980-04-01), Engele
patent: 4224910 (1980-09-01), O'Brien
patent: 4235204 (1980-11-01), Rice
patent: 4306529 (1981-12-01), Chiesa
patent: 4348728 (1982-09-01), Sagisaka
patent: 4365299 (1982-12-01), Konoo

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