CYLINDER PRESSURE SENSOR CALIBRATION METHOD, INTAKE AIR QUANTITY SENSOR CALIBRATION METHOD, INTERNAL COMBUSTION ENGINE CONTROL DEVICE, AND INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide a cylinder pressure sensor calibration method, an intake air quantity calibration method, an internal combustion engine control device, and an internal combustion engine accurately calibrating a cylinder pressure sensor and an intake air quantity sensor with relatively simple algorithm by correlating an intake air quantity and the cylinder pressure of the internal combustion engine when the internal combustion engine is operated, a fuel injection quantity is zero, and an EGR valve is fully closed.;SOLUTION: This invention relates to the cylinder pressure sensor calibration method for calibrating a measurement value Pcm of the cylinder pressure sensor 18 by a measurement value Mam of the intake air quantity sensor 14 when the internal combustion engine 1 is operated, a fuel injection quantity Qf is zero, and the EGR valve 33 is fully closed. A intake air quantity corresponding to the measurement value Mam of the intake air quantity sensor 14 and cylinder pressure corresponding to the measurement value Pcm of the cylinder pressure sensor 18 are correlated by using state equations of gas with respect to a gas quantity in a cylinder, and the measurement value Pcm of the cylinder pressure sensor 18 is calibrated by the measurement value Mam of the intake air quantity sensor 14 based on the correlation.;COPYRIGHT: (C)2011,JPO&INPIT