公开(公告)号：US20060113934A1

公开(公告)日：2006-06-01

申请号：US11286759

申请日：2005-11-23

申请人： Toshihiko Kushida ,  Yukio Torigai

发明人： Toshihiko Kushida ,  Yukio Torigai

IPC分类号： H02P5/00 ,  H02P7/00

CPC分类号： G01R31/3624 ,  B25B21/00 ,  B25B23/147 ,  G01R19/16542 ,  G01R31/361 ,  G01R31/3648 ,  G01R31/40 ,  Y10S388/937

摘要： A controller compares a minimum value of power source voltage which decreases in association with starting current generated upon start of a motor with a threshold value in a storing unit. When the minimum value is less than the threshold value, the controller notifies of shortage of the power source terminal voltage, and stops the motor. The controller also compares a value obtained by integrating the power source voltage which decreases in association with starting current generated upon start of the motor for only predetermined time with the threshold value in the storing unit, when the integral value is less than the threshold value, notifies of shortage of the power source terminal voltage, and stops the motor.

摘要翻译： 控制器将与电动机启动时产生的起动电流相关联的电源电压的最小值与存储单元中的阈值进行比较。 当最小值小于阈值时，控制器通知电源端子电压不足，并停止电机。 所述控制器还将所述积分值小于所述阈值时，将与电动机启动时产生的起动电流相关联的电源电压与所述存储单元中的阈值进行比较，所得到的值与所述电机的起动电流相关联， 通知电源端子电压不足，停止电机。

公开(公告)号：US07595601B2

公开(公告)日：2009-09-29

申请号：US11733798

申请日：2007-04-11

申请人： Toshihiko Kushida

发明人： Toshihiko Kushida

IPC分类号： B25B21/00 ,  B25B23/151

CPC分类号： B25B27/0014 ,  B25B21/00 ,  B25B23/147 ,  Y10S388/937

摘要： An abrupt fall in a current value immediately after an abrupt rise at the time when an starting switch is turned ON is detected, when the current value rises due to starting of nut fastening and then the current value abruptly falls, it is determined that an inward flange of a washer is sheared, and when the current value reaches a value corresponding to a primary fastening torque, the motor is stopped.

摘要翻译： 检测当起动开关接通时急剧上升之后电流值突然下降，当电流值由于螺母紧固开始而升高，电流值突然下降时，确定向内 剪切垫圈的法兰，当电流值达到与主要紧固扭矩相对应的值时，电机停止。