公开(公告)号：US20160241178A1

公开(公告)日：2016-08-18

申请号：US15008841

申请日：2016-01-28

Applicant: MAKITA CORPORATION

Inventor： Katsuhito FUJINAMI ,  Kazuki IYOTA

IPC: H02P23/02 ,  H02K11/27 ,  H02K5/04 ,  H02K11/26

CPC classification number: H02P23/02 ,  H02K11/26 ,  H02K11/27 ,  H02P7/295

Abstract: An electric working machine according to one aspect of the present disclosure includes a motor, a current detector, a voltage detector, and a load state determination unit. The current detector is configured to detect a current flowing through the motor during drive of the motor. The voltage detector is configured to detect an input voltage supplied to the motor during drive of the motor. The load state determination unit is configured to determine whether the motor is in a no-load operation state based on the detected current, the detected input voltage and an output voltage from an electric power source.

Abstract translation: 根据本公开的一个方面的电动加工机包括电动机，电流检测器，电压检测器和负载状态确定单元。 电流检测器被配置为在电动机驱动期间检测流过电动机的电流。 电压检测器被配置为在电动机的驱动期间检测提供给电动机的输入电压。 负载状态确定单元被配置为基于检测到的电流，检测到的输入电压和来自电力源的输出电压来确定电动机是否处于空载操作状态。