| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a supercharging pressure control method of an internal combustion engine with a supercharger, capable of suppressing turbo lag and surge of a compressor. <P>SOLUTION: In this supercharging pressure control method of the internal combustion engine with the supercharger, by using supercharging pressure in the downstream side of the compressor 20C and the upstream side of a throttle valve 16 as working pressure, supply pressure to an actuator 30 driving a waste gate valve 20WG is controlled, and feedback control is performed such that the supercharging pressure becomes target supercharging pressure. When the throttle valve 16 is operated in a closed side by predetermined amount or more, the target supercharging pressure is changed for a predetermined period based on an opening of the throttle valve 16 and engine speed. Preferably, the target supercharging pressure is increased for a predetermined period in a second operating region other than a first operating region where the opening of the throttle valve 16 is below a predetermined value and engine speed exceeds a predetermined value, and the target supercharging pressure is reduced for a predetermined period in the first operating region where the opening of the throttle valve 16 is below the predetermined value and engine speed exceeds the predetermined value. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
