Apparatus for controlling internal combustion engine

Details Apparatus for controlling internal combustion engine Apparatus for controlling internal combustion engine

2005-07-12

2005-07-12

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S568110, C123S090150

Reexamination Certificate

active

06917874

ABSTRACT:
An electronic control unit corrects ignition timing according to changes in an internal EGR amount accompanying actuation of a variable valve actuation mechanism used in an internal combustion engine. The electronic control unit computes a base correction amount AVVTb based on an engine speed NE and an engine load ratio KL. The control unit multiplies the base correction amount AVVTb by the ratio of a square number of an actual valve overlap amount realOL to a square number of a target valve overlap amount tOL, thereby computing a VVT correction amount AVVT of ignition timing. As result, the engine is easily and properly controlled based on the relationship between the state of the variable valve actuation mechanism and changes in the internal EGR amount.

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patent: 1 211 402 (2002-06-01), None
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