US Patent 11744769 Assisted speed controller for percussive massage devices

A percussive massage device includes a motor including a rotor, a push rod operatively connected to the motor and configured to reciprocate in response to activation of the motor, a massage attachment coupled to a distal end of the push rod, a sensor configured to detect a rotor position of the rotor, and a controller configured to receive the rotor position, determine a rotational speed of the motor therefrom, and compare the rotational speed to a predetermined speed, wherein the controller is configured to increase operating power of the motor when the rotational speed is lower than the predetermined speed.