Apparatus for controlling air-fuel ratio of internal combustion

Details Apparatus for controlling air-fuel ratio of internal combustion Apparatus for controlling air-fuel ratio of internal combustion

1989-02-15

1989-12-12

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

123489, F02D 4114, F02D 4122

Patent

active

048860280

ABSTRACT:
An air-fuel ratio control apparatus for an internal combustion engine comprises feedback control of the air-fuel ratio control, wherein a pump-driving voltage for flowing a pump-driving current is lowered to a predetermined value, and feedback control is suspended when the pump-driving current becomes lower than a predetermined value.

REFERENCES:
patent: 4724814 (1988-02-01), Mieno et al.
patent: 4724815 (1988-02-01), Mieno et al.
patent: 4753203 (1988-06-01), Yamada
patent: 4777922 (1988-10-01), Mieno et al.
patent: 4819602 (1989-04-01), Mieno et al.

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