Title:
METHOD AND DEVICE FOR CONTROLLING MOTOR
Document Type and Number:
WIPO Patent Application WO/2024/023895
Kind Code:
A1
Abstract:
According to the present invention, when there is, in a second coordinate space having the rotation speed and the torque of a motor 009 as the coordinate axes, a specific region 113 in which the temperature of a magnet of the motor 009 is higher than the temperature of a coil of the motor 009 and the temperature difference between the magnet and the coil is equal to or higher than a prescribed value, when temperature characteristics, in which the temperature difference between the magnet and the coil becomes smaller as the distance from an efficient operation line 114 increases, are exhibited in a first coordinate space, and furthermore when a coordinate position indicating a rotation speed N and a torque instruction value T* in the second coordinate space is included in the specific region 113, then a motion point 116 is moved to a retreating position 117 which is on an equal torque line 115 coinciding the motion point 116 and which is distanced from the efficient operation line 114.
Inventors:
MUROTA KOHEI (JP)
Application Number:
PCT/JP2022/028651
Publication Date:
February 01, 2024
Filing Date:
July 25, 2022
Export Citation:
Assignee:
NISSAN MOTOR (JP)
International Classes:
H02P21/14
Foreign References:
| JP2019134630A | 2019-08-08 | |||
| JP2010041869A | 2010-02-18 | |||
| JP2020110024A | 2020-07-16 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
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