| 摘要 |
<p>A method of controlling a drill/driver, the drill/driver including a rotatable shaft arranged to mount a screwdriver and bit and a motor for rotatably driving the shaft, the motor being driven only during determined conduction periods, the method arranged to provide, within a given time period, a value which is a function of the conduction period necessary to maintain a given motor speed, and wherein the motor is stopped if this value has exceeded a predetermined amount before the end of the given time period.</p> |
