Air-fuel ratio control apparatus for internal combustion engine

Details Air-fuel ratio control apparatus for internal combustion engine Air-fuel ratio control apparatus for internal combustion engine

2007-12-04

2007-12-04

Huynh, Hai (Department: 3747)

Internal-combustion engines

Charge forming device

Including exhaust gas condition responsive means

C123S480000

Reexamination Certificate

active

11303963

ABSTRACT:
An air-fuel ratio control apparatus for an internal combustion engine according to the invention includes a control unit that makes a correction to the fuel injection amount using the air-fuel ratio learned value when calculating the fuel injection amount, and that changes the guard value that places a limitation on the degree of correction to the fuel injection amount made by using the air-fuel ratio learned value, based on the degree to which lubricating oil has been diluted with fuel.

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