| 摘要 |
<p>PURPOSE:To perform stable supercharging control by decreasing both of desired supercharging pressure and fundamental supercharging controlled variable when engine speed varies from an accelerated state to a decelerated one. CONSTITUTION:Those of intake pressure PA, supercharging pressure PZ, engine speed NE, throttle opening theta, car speed V and a shift position signal of an automatic transmission are all inputted into a control means C, and an actuator 60 for a movable vane is driven on the basis of these input signals. When engine speed varies from an accelerated state to a decelerated one, both of desired supercharging pressure and fundamental supercharging pressure controlled variable are decreased. With this constitution, an overshoot value is abated after detecting a fact that it is in a shift change time by behavior of the engine speed, so that stable supercharging pressure control is thus performable.</p> |
