Control device for internal combustion engine

A control device for an internal combustion engine having an intake passage and a throttle valve arranged in the intake passage, comprising:

• an air flow meter arranged in the intake passage, the air flow meter including a main passage and a bypass passage and detecting an amount of air flowing through the bypass passage to detect an amount of air flowing through the intake passage;
• an obtaining means for obtaining the current throttle opening;
• a calculation means for calculating the current intake air amount based on the current throttle opening obtained by the obtaining means;
• an estimating means for estimating an air flow meter-detecting intake air amount assuming that air flows through the intake passage by the current intake air amount calculated by the calculation means and considering the pressure loss of the bypass passage of the air flow meter, the air flow meter-detecting intake air amount being an intake air amount to be detected by the air flow meter;
• and
• control means for controlling the engine based on the air flow meter-detecting intake air amount estimated by the estimating means.