Determination method and apparatus of mass flow pipe pressure diaphragm position before

The present invention particularly with respect to modeling of the pressure values ​​of the front throttle valve in supercharged internal combustion engine, capable of optimizing the model to provide a determination method and apparatus for mass flow pipe pressure diaphragm position before. A magnitude for the diaphragm position behind the pressure and the aperture cross-section of the diaphragm position is is measured, in the method of determining the mass flow pipe pressure diaphragm position before the pressure in the position before the diaphragm on the basis of these measurement variables are It is modeled .FIELD 1