Patent ID: 7191050

Claim:
A variable valve control apparatus for an internal combustion engine provided with a variable valve mechanism that varies an operating characteristic of an intake valve, for controlling a gas amount passing through said intake valve by variably controlling said operating characteristic, comprising: a storage section that stores previously a correlation between a value equivalent to an opening area of said intake valve and a valve passing gas amount, corresponding to predetermined effective cylinder capacity; a conversion section that converts said value equivalent to the opening area of said intake valve into the valve passing gas amount by referring to said correlation; a correction section that corrects said value equivalent to the opening area based on a ratio between the valve passing gas amount obtained in said conversion section and a requested valve passing gas amount; a calculating section that calculates requested effective cylinder capacity by which said requested valve passing gas amount is able be obtained based on said value equivalent to the opening area, based on the valve passing gas amount obtained by referring to said correlation based on the value equivalent to the opening area corrected in said correction section, and said requested valve passing gas amount; and a control section that controls said variable valve mechanism according to the requested effective cylinder capacity calculated in said calculating section.