| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device of a waste gate valve which can suppress an increase of the vibration of a valve body of the waste gate valve in an opening/closing direction accompanied by the action of the exhaust pulsation of an internal combustion engine.SOLUTION: On condition that an opening command value of a waste gate valve 14 is constant, and when a valve body 17 of the valve 14 receives an influence of an internal combustion engine 1, and a variation amount (magnitude of vibration in an opening/closing direction) of the valve body 17 is not smaller than a determination value, an electronic control device 21 performs minimum vibration opening investigation processing for searching for an opening (minimum vibration opening) of the valve body 17 in which a magnitude of the vibration reaches a minimum value. Furthermore, the electronic control device 21 adds the adjustment of the opening of the valve body 17 of the waste gate valve 14 to the minimum vibration opening which is searched for via the minimum vibration opening investigation processing. By this constitution, an increase of the vibration of the valve body 17 of the waste gate valve 14 can be suppressed, and the generation of noise accompanied by the increase of the vibration can be also suppressed.SELECTED DRAWING: Figure 1 |
