Method for predicting and compensating frictions of feed system, and computer readable medium

A method for predicting and compensating frictions of feed system is disclosed and includes following steps: constantly obtaining current signal and angle-position signal of a motor by a motor driver of a feed system after it is activated; calculating multiple records of friction data of the motor, while the motor rotates, upon each rotating position according to the obtained current signal and angle-position signal; establishing a friction model according to the multiple records of friction data and multiple records of the angle-position signal respectively corresponding to each record of the friction data with respect to each rotating position; importing current angle-position signal of the motor into the friction model for predicting a predicted friction of the feed system; calculating a compensation current based on the predicted friction; and, controlling the motor driver to additionally provide the compensation current to the motor for overcoming the friction for the feed system.