| 摘要 |
PROBLEM TO BE SOLVED: To provide a control device which can stably maintain the control accuracy of a waste gate valve (valve mechanism) even if a temperature condition is changed.SOLUTION: When a waste gate valve is converged to a full-closed position, a valve-closing position learning value is updated on the basis of an output of an opening sensor at that time. On the other hand, when the waste gate valve is not converged to the full-closed position, the valve-closing position learning value is corrected according a temperature change after updating the valve-closing position learning value in the last time. By this constitution, when an output characteristic of the opening sensor is changed due to a change of a temperature condition in a state that the valve-closing position learning value is not updated, the valve-closing position learning value can be corrected to a value conforming to a change of the output characteristic. |
