| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a control device capable of performing atmospheric pressure measurement with sufficient frequency while suppressing increase in system cost, in an engine with a supercharger.SOLUTION: An engine includes: a supercharger provided at an intake pipe; an exhaust recirculation pipe for recirculating the exhaust in an intake pipe on an upstream side of the supercharger; a sub-throttle for exhaust recirculation control provided at the intake pipe on the further upstream side than a portion in which the exhaust is recirculated via the exhaust recirculation pipe; and a pressure sensor provided between the supercharger and the sub-throttle. The exhaust recirculation amount is controlled based on output of the pressure sensor, while an atmospheric pressure is measured based on the output of the pressure sensor in a fully opened state of the sub-throttle, and a target boost pressure is changed based on the measured atmospheric pressure.</p> |
