| 摘要 |
<p>PURPOSE:To effectively suppress a supercharge pressure overshoot in the time of accelerating operation suited for a driving feeling of the driver by correcting the basic output of an exhaust bypass valve control mechanism in a manner wherein the actual supercharge pressure obtains a target supercharge pressure. CONSTITUTION:In a condition of accelerating operation that a throttle valve generates its opening speed of not less than a reference value, the basic torque (target supercharge pressure) is compared with engine torque (actual supercharge pressure), and in accordance with a difference between the engine torque and the basic torque, that is, a degree of torque fluctuating amount, an exhaust bypass valve 13 is controlled. When the torque fluctuating amount increases, increasing by this increase amount a length of opening time of a solenoid valve 27 and an output control pressure in a chamber 24a of a control pressure regulator 20, the exhaust bypass valve 13 is increased in its opening degree.</p> |
