Patent ID: 7099767
Filing Date: 2006-08-29
Classification: F02D

Abstract:
1. A control device for an internal combustion engine having an intake passage and a throttle valve arranged in the intake passage, the intake passage upstream of the throttle valve being divided into a plurality of intake divided-flow conduits, the control device comprising: air flow meters arranged in the respective intake divided-flow conduits; obtaining means for obtaining the throttle opening; calculation means for calculating a throttle valve passing-through air amount, which is an amount of air passing through the throttle valve, on the basis of the throttle opening obtained by the obtaining means; estimating means for estimating each air flow meter-detecting intake air amount, which is an intake air amount to be detected by each air flow meter, assuming that air flows through each intake divided-flow conduit by a part of the throttle valve passing-through air amount calculated by the calculation means, the part being determined by a divided-flow ratio of the corresponding intake divided-flow conduit, and for estimating a total value of the estimated air flow meter-detecting intake air amounts; and control means for controlling the engine on the basis of the total air flow meter-detecting intake air amount estimated by the estimating means.