Title:
Motor controlling device
Document Type and Number:
Japanese Patent JP6137090
Kind Code:
B2
Abstract:
A motor control apparatus includes a counter, a margin calculation portion, and a cycle set portion. The counter counts a total number of switching the current supply phase of the coils when the rotor is rotationally driven. A rotation angle of the rotor is detected on a basis of the number of switching. The margin calculation portion calculates a torque margin that is a difference between an output torque of the motor and a load torque acting on the motor. The cycle set portion sets a current supply switching cycle to shorten as the torque margin is greater. The current supply switching cycle is a cycle switching the current supply phase of the coils.
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Inventors:
barrel Jun I
Application Number:
JP2014177961A
Publication Date:
May 31, 2017
Filing Date:
September 02, 2014
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02P25/083
Domestic Patent References:
| JP56015192A | ||||
| JP2012222917A | ||||
| JP2001231293A | ||||
| JP2095763A |
Attorney, Agent or Firm:
Masaki Hattori