| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device capable of preventing overshoot of supercharging pressure even if operation delay of a nozzle vane exists. <P>SOLUTION: This device includes: a turbocharger (11) which includes the nozzle vane (24) adjusting flow rate or flow speed of exhaust gas flowing into an exhaust turbine, an actuator (31) responding to supply of pressure or electricity quantity corresponding to a control command value, and a link mechanism (27) connecting the actuator (31) and the nozzle vane (24), and supercharges intake air; a means (41) which executes feedback control of a supercharging pressure to make an actual supercharging pressure coincide with a target supercharging pressure, and a means (41) which executes feedback control of a nozzle vane displacement to make an actual nozzle vane displacement coincide with a target nozzle vane displacement or executes feedback control of an actuator displacement to make an actual actuator displacement coincide with a target actuator displacement. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
