Title:
MOTOR CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/172472
Kind Code:
A1
Abstract:
The present invention is a motor control device having a feedback system including a plurality of controllers to which a feedback signal related to the operation of a motor for a control shaft configured to bear a prescribed unbalanced load is input. The motor control device executes: first processing for increasing, in the same phase as that of a control current for forming a driving force, said control current by means of a current control unit while maintaining a state of balance between the prescribed unbalanced load and the driving force; and second processing for calculating a magnetic pole position of the motor on the basis of the amount of displacement by which a movable element has been displaced through said first processing and the control current increased through said first processing.
Inventors:
KAIDA SOTA (JP)
FUKUHARA HITOSHI (JP)
ONO YASUSHI (JP)
FUKUHARA HITOSHI (JP)
ONO YASUSHI (JP)
Application Number:
PCT/JP2021/009849
Publication Date:
August 18, 2022
Filing Date:
March 11, 2021
Export Citation:
Assignee:
OMRON TATEISI ELECTRONICS CO (JP)
International Classes:
H02P6/16; H02P21/06; H02P21/22; H02P25/024; H02P25/06
Domestic Patent References:
| WO2018154621A1 | 2018-08-30 |
Foreign References:
| JPH0956185A | 1997-02-25 | |||
| JP2000191248A | 2000-07-11 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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