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Title:
CONTROL DEVICE, CONTROL METHOD, MOTOR, AND ELECTRIC OIL PUMP
Document Type and Number:
WIPO Patent Application WO/2018/062096
Kind Code:
A1
Abstract:
When an estimated rotational speed becomes lower than or equal to a predetermined rotational speed, a control unit 76 of a motor control device 70 increases the voltage to be applied to a coil 53 on the basis of a control signal for increasing the voltage to be applied to the coil 53 as calculated from the estimated rotational speed; when the estimated rotational speed is higher than the predetermined rotational speed and in cases where an actual rotational speed is lower than the predetermined rotational speed, the control unit increases the voltage to be applied to the coil 53 on the basis of a control signal for increasing the voltage to be applied to the coil 53 as calculated from the actual rotational speed; and when the estimated rotational speed is higher than the predetermined rotational speed and in cases where the actual rotational speed is higher than the predetermined rotational speed, the control unit decreases the voltage to be applied to the coil 53 on the basis of a control signal for decreasing the voltage to be applied to the coil 53 as calculated from the actual rotational speed.

Inventors:
SATO Kei (24-1 Sobudai 2-chome, Zama-sh, Kanagawa 70, 〒2528570, JP)
HIBI Yuichi (24-1 Sobudai 2-chome, Zama-sh, Kanagawa 70, 〒2528570, JP)
SHIRAI Yasuhiro (24-1 Sobudai 2-chome, Zama-sh, Kanagawa 70, 〒2528570, JP)
Application Number:
JP2017/034522
Publication Date:
April 05, 2018
Filing Date:
September 25, 2017
Export Citation:
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Assignee:
NIDEC TOSOK CORPORATION (24-1, Sobudai 2-chome Zama-sh, Kanagawa 70, 〒2528570, JP)
International Classes:
H02P6/16; F04B43/04; F04B49/06; F04C2/10; H02P6/15; H02P23/03; H02P27/08
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (Takaoka IP Law Office, Ikebukuro Tosei Building 5th Floor, 5-4-7, Nishi-Ikebukuro, Toshima-k, Tokyo 21, 〒1710021, JP)
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