| 摘要 |
<p>PURPOSE:To surely prevent a supercharger delivery pressure from excessively increasing without almost decreasing an output regardless of an intake air temperature. CONSTITUTION:In an ECU42, close timing of an intake valve 25 is largely delayed from the bottom dead center of a piston by a valve timing variable mechanism 31, in the case that an engine speed Ne detected by an engine speed sensor 43 is a critical rotational speed No or less, and the close timing is advanced to approach the bottom dead center of the piston in the case that the engine speed Ne exceeds the critical rotational speed No. Further, the critical rotational speed No is set to a lower value in accordance with higher increasing an intake air temperature detected by an intake air temperature sensor 46.</p> |
