Ultrasonic motor control system and control method thereof

The invention discloses an ultrasonic motor control system and a control method thereof. The system comprises a master control chip and a motor control software system, wherein the master control chip is used for being connected with a host computer, receiving a control instruction transmitted from the host computer and returning a control result to the host computer; the master control chip is connected with an ultrasonic motor and is used for controlling the ultrasonic motor to run; the motor control software system comprises a hardware underlayer driver layer, an intermediate layer and an upper application layer; the hardware underlayer driver layer comprises an underlayer drive API function of the master control chip; and the intermediate layer carries out secondary encapsulation on the underlayer drive API function of hardware according to the requirements of the application layer. By a parameter configuration scheme, the problems that characteristic parameters of an ultrasonic steering engine are various and the individual difference is obvious are solved, so that the hardware adaptability of control software of the ultrasonic steering engine is significantly enhanced.