| 摘要 |
This air quantity estimation apparatus includes models M 2 to M 7 which are configured on the basis of physical laws. The apparatus estimates pressure Pic and temperature Tic of air within the intercooler, by use of the compressor model M 4 and the intercooler model M 5, in consideration of a first energy Ecm, which a supercharger 91 (a compressor 91 a) imparts to air supplied into an intercooler 45, and a second energy, which is exchanged between a wall of the intercooler and air within the intercooler. The apparatus estimates cylinder intake-air quantity KLfwd at a future point in time later than a present point in time based on the estimated pressure and the estimated temperature of air within the intercooler.
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