| 摘要 |
PROBLEM TO BE SOLVED: To accurately calculate a cylinder filled air quantity by computing an intake pressure drop quantity of each corresponding cylinder from a respective upward peak pressure and downward peak pressure. SOLUTION: The control device calculates a differential value of intake pressure while successively detecting the intake pressure by a pressure sensor 40, sets a peak pressure detection range of each cylinder on the basis of the intake pressure differential value, detects the upward peak pressure and downward peak pressure of the intake pressure included within the peak pressure detection range of each cylinder respectively, and computes the intake pressure drop quantity of the corresponding cylinder from the respective upward peak pressure and downward peak pressure. A cylinder filled air quantity is calculated on the basis of the intake pressure drop quantity. COPYRIGHT: (C)2006,JPO&NCIPI
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