公开(公告)号：US11942819B2

公开(公告)日：2024-03-26

申请号：US17909770

申请日：2021-03-24

Applicant: ADVICS CO., LTD.

Inventor： Keisuke Yamamoto ,  Tomohisa Ozeki

IPC: H02J9/06

CPC classification number: H02J9/068 ,  H02J9/066 ,  H02J2310/40

Abstract: A control device includes an electric motor, a battery, a capacitor, a power source selection portion, a determination unit configured to determine whether the battery is normal, and a control unit configured to select, as a control mode of the electric motor, one of a first mode and a second mode in which a power consumption amount of the electric motor is reduced as compared to when the electric motor is driven in the first mode, and drive the electric motor in the selected control mode. When the battery is transitioned from a state of being determined to be normal to a state of being determined to be not normal, the control unit switches the control mode from the first mode to the second mode and then makes the power source selection portion select the capacitor.