| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control device of a supercharger capable of improving the follow-up performance of actual supercharging pressure with respect to target supercharging pressure more than a conventional device. <P>SOLUTION: An engine ECU calculates a value Vnfbdb of a basic differential term according to the actual supercharging pressure Pbact and a supercharging pressure deviation change rate Pbdif(i) in an operational expression used for PID control for adjusting the opening of a variable vane (step S8), and calculates a value Vnfbdc of a differential correction term for correcting the value Vnfbdb of the basic differential term according to the value Vnfbdb of the basic differential term and a supercharging pressure deviationΔPb(i) (step S9), and thereby suppresses the fluctuation of a value Vnfbd of a differential term that strengthens an influence over the follow-up performance of the actual supercharging pressure with respect to the target supercharging pressure Pbbase as the supercharging pressure deviationΔPb(i) increases. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
