Method and device for back pressure-dependent correction of air/

Details Method and device for back pressure-dependent correction of air/ Method and device for back pressure-dependent correction of air/

1982-11-17

1985-04-09

Cox, Ronald B.

Internal-combustion engines

Charge forming device

Having fluidic logic control means

123489, 123494, F02B 300

Patent

active

045094853

ABSTRACT:
A method comprising correcting the air/fuel ratio of a mixture being supplied to an internal combustion engine, by the use of a correction coefficient determined as a function of detected values of atmospheric absolute pressure and intake pipe absolute pressure. A device is also provided, which includes means for arithmetically calculating the correction coefficient as a function of outputs of sensors for sensing the two kinds of absolute pressure or means storing predetermined values of the correction coefficient for selective reading as a function of the sensor outputs, and means for correcting the valve opening period of a fuel injection valve by the calculated or read coefficient value.

REFERENCES:
patent: 4200064 (1980-04-01), Engele
patent: 4235204 (1980-11-01), Rice
patent: 4269156 (1981-05-01), Drellishak

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