Internal combustion engine air-fuel ratio control system includi

Details Internal combustion engine air-fuel ratio control system includi Internal combustion engine air-fuel ratio control system includi

1990-02-21

1991-01-22

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123 1A, 123489, F02D 4114

Patent

active

049862413

ABSTRACT:
If an alcohol sensor which determines the amount of alcohol which is mixed with gasoline, malfunctions, the fuel supply correction factor which is designed to modify the basic fuel supply amount to compensate for the amount of alcohol, is prevented from being changed in accordance with the output of the alcohol sensor, and temporarily calibrated by feedback from the air-fuel ratio sensor disposed in the exhaust system.

REFERENCES:
patent: 4391253 (1983-07-01), Ito
patent: 4706629 (1987-11-01), Wireland et al.
patent: 4909225 (1990-03-01), Gonze et al.
patent: 4913099 (1990-04-01), Ota

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