Control apparatus for internal combustion engine

Details Control apparatus for internal combustion engine Control apparatus for internal combustion engine

2011-08-30

2011-08-30

Moulis, Thomas N (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S00100A, C123S674000, C701S109000

Reexamination Certificate

active

08010278

ABSTRACT:
An engine is operated with air-fuel ratio F/B control interrupted, by regarding an alcohol concentration value ALC1inputted from outside as a tentative concentration value, and by detecting the rotation-speed fluctuation amount of an engine, the appropriateness of the tentative concentration value is determined. In the case where it is determined that the tentative concentration value is appropriate, an estimated alcohol concentration value ALC2stored in a storage means is replaced by the tentatively changed alcohol concentration value ALC1.

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