Patent ID: 6978667
Filing Date: 2005-12-27
Classification: F02D,G01F

Abstract:
1. An intake air amount detecting apparatus for an engine, comprising: an intake air amount detector that is configured to output different detection signals for the forward flow and reverse flow of engine intake air; a conversion section that is configured to convert each of the detection signals from said intake air amount detector into intake air amount data of same sign; an offset-amount setting section that is configured to set an offset amount for converting the intake air amount data obtained in said conversion section into intake air amount data with signs that distinguish between the forward flow and the reverse flow; and a subtracting section that is configured to subtract the offset amount set by the offset-amount setting section from the intake air amount data obtained in said conversion section, to obtain intake air amount data in which the forward flow and the reverse flow are distinguished from each other by signs.