Title:
MOTOR DRIVE CONTROL DEVICE, MOTOR UNIT, AND MOTOR DRIVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/029455
Kind Code:
A1
Abstract:
The present invention achieves both a shortened activation time and post-activation vibration improvement. A motor drive control device (10) comprises a control circuit unit (3) that outputs a drive control signal (Sd) to a motor drive unit (2) for selectively energizing three phase coils (Lu, Lv, Lw) of a motor (20), thereby switching, in a prescribed order, energization patterns of the three phase coils (Lu, Lv, Lw) energized by the motor drive unit (2). The control circuit unit (3) includes: an energization-switching-signal generation unit (35) that generates an energization switching signal (S6) for switching the energization patterns of the three phase coils (Lu, Lv, Lw) of the motor (20) in accordance with a rotation state of the motor (20) at a timing determined on the basis of the 180° section or the 360° section of a position detection signal (Shu); and a drive-control-signal generation unit (33) that switches the energization patterns on the basis of the energization switching signal (S6) so as to generate, as the drive control signal (Sd), a PWM signal (S4) for performing sine wave driving of the motor (20).
Inventors:
AOKI MASATO (JP)
Application Number:
PCT/JP2023/027724
Publication Date:
February 08, 2024
Filing Date:
July 28, 2023
Export Citation:
Assignee:
MINEBEA MITSUMI INC (JP)
International Classes:
H02P6/10
Foreign References:
| JP2006020440A | 2006-01-19 | |||
| JPH09312995A | 1997-12-02 | |||
| JP2000350492A | 2000-12-15 |
Attorney, Agent or Firm:
EINSEL Felix-Reinhard et al. (JP)
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