| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve a combustion state of an internal combustion engine equipped with a waste gate valve. <P>SOLUTION: In an engine system 10, ECU 100 controls opening and closing of WGV 228 by executing valve opening processing and valve closing processing. In the valve closing processing, a suction amount, ignition timing and a valve overlap amount are controlled so that combustion state deterioration of an engine 200 assumed when the WGV 228 is closed is restrained before actually closing the WGV 228, and the WGV 228 is closed after controlling of them. In the valve opening processing, the WGV 228 is speedily opened in accordance with a valve opening request. After opening the WGV 228, the suction amount, the ignition timing and the valve overlap amount are controlled so that the combustion state of the engine 200 is improved. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
