Title:
モータの回転方向検出装置および回転方向検出方法ならびにモータ制御装置
Document Type and Number:
Japanese Patent JP6914351
Kind Code:
B2
Abstract:
A device 1 for detecting rotation direction has a current detector 11 that detects the direction of current flowing in a motor 3, a voltage detector 12 that detects each voltage before and after the motor 3 in a power supply line 4, and a rotation direction detector 13 that detects the rotation direction of the motor 3 on the basis of the direction of the current and each voltage before and after the motor 3. The current detector 11 is connected to points A, B before and after a shunt resistor 5, and detects the direction of the current flowing in the power supply line 4 to form current direction information CI. The voltage detector 12 is connected to points A, C before and after the motor 3, and detects the voltage at each position to form motor terminal voltage information VI. The rotation direction detector 13 detects the rotation direction of the motor 3 using a logical combination of the current direction information CI and the motor terminal voltage information VI.
Inventors:
Yuichi Yanagida
Takuya Uchida
Takuya Uchida
Application Number:
JP2019551070A
Publication Date:
August 04, 2021
Filing Date:
October 18, 2018
Export Citation:
Assignee:
Mitsuba Co., Ltd.
International Classes:
H02P7/06
Domestic Patent References:
| JP2002369318A | ||||
| JP2014045648A |
Attorney, Agent or Firm:
Ning Takano