SUCTION AIR AMOUNT PREDICTING DEVICE OF INTERNAL COMBUSTION ENGINE

摘要

A suction air amount predicting device of an internal combustion engine for calculating air amount passed through a throttle valve by using an upstream side suction pressure on the upstream side of the throttle valve and a downstream side suction pressure on the downstream side of the throttle valve and predicting a suction air amount based on the air amount passed through the throttle valve. The upstream side suction pressure used for the calculation of the air amount passed through the throttle valve is measured or calculated in consideration of at least the pressure loss of an air cleaner by the atmospheric pressure.