Method of position motion control for voice coil motor

The invention discloses a method of position motion control for a voice coil motor. The motor position information, the motor speed information and the motor current information are obtained by detecting the position of the voice coil motor; and then the position error is calculated based on the target position and the motor position information; and if the absolute value of the position error is greater than the position adjustment threshold value, the motor correction step is executed. The motor correction step includes: calculating a motor current direction Dr and a motor speed reference value Vn based on the position information, calculating a motor current reference value Ipn based on the motor speed reference value Vn, calculating an output current In based on the motor current reference value Ipn, and according to the motor current direction Dr and output current In, driving the voice coil motor, thus realizing the high-speed high-precision control of the voice coil motor. 本发明公开了种音圈电机位置运动控制方法。通过检测音圈电机的