ELECTRONIC TOOL AND CONTROL METHOD THEREOF

摘要

The present invention comprises: a first step wherein a shaft is operated to be rotated by the operation of the BLDC motor through an application of power supply; a second step wherein the electronic gear shifting is achieved when reaching a certain speed by detecting the speed of the shaft; a third step of detecting a torque acting to the shaft in a torque detecting part; and a fourth step wherein mechanical gear shifting is achieved in a mechanical gear shifting part when a torque detected in the torque detecting part is lower than a predetermined value, thereby improving the efficiency and control of an electronic tool, by sensing the torque after achieving an electrical gear shifting by using the BLCD motor to execute a mechanical gear shifting if required later.