Title:
回転機制御装置
Document Type and Number:
Japanese Patent JP4928850
Kind Code:
B2
Abstract:
A motor control unit includes a power converter unit that energize a motor based on a commutating signal, the motor having a rotor provided with a permanent magnet and a stator having a coil wound thereto; a start-up controller that outputs a commutating signal to the power converter unit during a start-up operation, the commutating signal having a predetermined conductive pattern corresponding to a command rotational speed; a voltage calculator that calculates a voltage of the motor during the start-up operation by applying a parameter for the motor, the command rotational speed, and a current flown in the coil of the motor to a voltage-current equation of the motor; and a determiner that, during the start-up operation, compares a voltage calculated by the voltage calculator and an actual voltage of the motor and that determines occurrence of rotational abnormalities when the actual voltage is lower than the calculated voltage.
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Inventors:
Toshimitsu Aizawa
Tsuyoshi Hosito
Tsuyoshi Hosito
Application Number:
JP2006178323A
Publication Date:
May 09, 2012
Filing Date:
June 28, 2006
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Home Appliance Co., Ltd.
Toshiba Consumer Electronics Holdings Co., Ltd.
Toshiba Home Appliance Co., Ltd.
Toshiba Consumer Electronics Holdings Co., Ltd.
International Classes:
H02P21/00; H02P6/06; H02P6/08; H02P6/16; H02P6/17; H02P6/182; H02P6/28; H02P21/14; H02P21/18; H02P21/22; H02P21/24; H02P21/28; H02P23/14; H02P23/16; H02P27/04; H02P27/08; H02P29/00
Domestic Patent References:
| JP2004312825A | ||||
| JP2004104997A | ||||
| JP2006141123A | ||||
| JP1144380A |
Attorney, Agent or Firm:
Tsuyoshi Sato