Method and Apparatus of artillery guided munitions' fin actuating that have combined rotate angle output by synchronized acceleration and sensorless driving

Disclosed are a wing driving device for a launched shell outputting a rotation angle in which a synchronized acceleration section and a sensorless control section are combined according to an input angle amount, and a driving method for same. According to the present invention, half of a supply voltage is set as a value compared to a terminal voltage in view of a specific high-load operating condition in controlling a brushless DC motor for shell manipulation wing driving where it is difficult to mount a rotation angle detection sensor. In this manner, a comparison operation is performed in a PWM signal ON section for ZCP detection. By an integrated control mechanism in which a position controller, a speed controller, and a current controller are configured to be serially connected, a manipulation wing position command input angle is divided into an early stage synchronized acceleration section and a following constant speed section for respectively performing a synchronized acceleration stage and a sensorless driving stage. Accordingly, a sufficient driving speed and a sufficient positional accuracy of the manipulation wing required for shell guide fly can be satisfied at the same time even without the rotation angle detection sensor with less durability.