| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a variable nozzle control device for a turbocharger, capable of maintaining the reproducibility of the control of position to a command value even if the movable range between a full close position and a full open position changes. <P>SOLUTION: This variable nozzle control device of a turbocharger includes an angle sensor for detecting the rotating angle of the rotating shaft of a motor, a storage means for storing the maximum value and the minimum value of the rotating angles of the rotating shaft, an initialization control means for performing an initialization operation by controlling the rotating angle of the rotating shaft of the motor to move the vanes of a movable nozzle to the full open side and the full close side, a movable range determination means which reads the output value of the angle sensor by the initialization control means while the vanes of the movable nozzle are moved between the full open side and the full close side and stores the maximum value and the minimum value of the output values in a storage means, and an opening control means which converts an opening command value for the vanes of the variable nozzle from an engine control device to a target position angle and controls the angle of the vanes so that the output value of the angle sensor is the converted target position angle. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
