Patent ID: 6961652
Filing Date: 2005-11-01
Classification: F02D,F02P,Y02T

Abstract:
1. A control apparatus for an internal combustion engine that calculates a requisite time required for a crank shaft of an internal combustion engine to rotate from a present crank angle to a designated crank angle where said control apparatus controls a predetermined device of said engine, said control apparatus comprising: measuring means for measuring a time required for a predetermined rotation of said crank shaft based on a crank signal representing said crank angle; and calculating means for calculating said requisite time by predicting a relationship between times required for said crank shaft to rotate consecutive angular regions positioned before and after said present crank angle based on measurement result obtained by said measuring means with respect to times required for said crank shaft to rotate consecutive angular regions positioned before and after a preceding crank angle advanced a predetermined amount from said present crank angle.