Title:
MOTOR CONTROL DEVICE AND MOTOR CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2021/235010
Kind Code:
A1
Abstract:
The present invention addresses the problem of controlling rotation of a motor at rotational speeds equal to or less than the set minimum rotational speed of a motor driver. A motor control device according to one embodiment of the present invention comprises a motor control command creation device (a superordinate control microcomputer 30) in which a predetermined number of pulses of a PWM signal serves as a command unit Tunit, a forward rotation signal generation period Tp and a reverse rotation signal generation period Tn are included in the command unit Tunit, and said motor control command creation device outputs the following to a motor driver in accordance with a target rotational speed: a forward rotation rotational speed command in the same direction as the current direction of rotation of a motor rotation shaft in the forward rotation signal generation period Tp; and a reverse rotation rotational speed command in the opposite direction from the current direction of rotation of the motor rotation shaft in the reverse rotation signal generation period Tn.
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Inventors:
MIYAZAKI TAIZOU (JP)
YAMASAKI MASARU (JP)
SHIMAZAKI KAZUO (JP)
KIHARA YUUSUKE (JP)
SARUWATARI MASAYUKI (JP)
YAMASAKI MASARU (JP)
SHIMAZAKI KAZUO (JP)
KIHARA YUUSUKE (JP)
SARUWATARI MASAYUKI (JP)
Application Number:
PCT/JP2021/003175
Publication Date:
November 25, 2021
Filing Date:
January 29, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
H02P27/08; H02P23/03
Domestic Patent References:
| WO2012029451A1 | 2012-03-08 |
Foreign References:
| JP2019024465A | 2019-02-21 | |||
| JP2018014773A | 2018-01-25 | |||
| JPH07327395A | 1995-12-12 | |||
| JPS61138395U | 1986-08-27 |
Attorney, Agent or Firm:
TODA Yuji (JP)
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