公开(公告)号：US10224859B2

公开(公告)日：2019-03-05

申请号：US15925386

申请日：2018-03-19

申请人： RICOH COMPANY, LTD.

发明人： Hiroyuki Kiguchi ,  Takeo Seki ,  Natsuko Ishizuka ,  Takuya Murata

IPC分类号： B65H9/00 ,  H02P29/024 ,  H02P3/00

摘要： A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the rotation; a drive control unit configured to perform drive control to rotate the motor at a control target value increasing with time based on the rotation detection value; and an abnormality detection unit configured to perform an abnormality detection process for detecting an abnormality in the drive control based on the rotation detection value and a predetermined threshold. The drive control unit performs control to stop rotation of the motor when the abnormality is detected.

公开(公告)号：US09973133B2

公开(公告)日：2018-05-15

申请号：US15272077

申请日：2016-09-21

申请人： Ricoh Company, Ltd.

发明人： Hiroyuki Kiguchi ,  Takeo Seki ,  Natsuko Ishizuka ,  Takuya Murata

IPC分类号： G05B19/29 ,  H02P29/024 ,  H02P3/00

CPC分类号： H02P29/024 ,  G05B2219/34013 ,  H02P3/00 ,  H02P29/0241

摘要： A motor control device includes a detecting unit configured to detect rotation of a motor to be controlled and output a rotation detection value related to the rotation; a drive control unit configured to perform drive control to rotate the motor at a control target value increasing with time based on the rotation detection value; and an abnormality detection unit configured to perform an abnormality detection process for detecting an abnormality in the drive control based on the rotation detection value and a predetermined threshold. The drive control unit performs control to stop rotation of the motor when the abnormality is detected.