Title:
ブラシレス直流電気モータ、および関連する制御方法
Document Type and Number:
Japanese Patent JP7210619
Kind Code:
B2
Abstract:
A brushless DC motor (1) comprises a rotor comprising magnetic elements twining poles of the electric motor (1) and a control magnet comprising a number of pole pairs equal to three times that of the electric motor (1), a stator having electromagnetic excitation coils, at least one first and one second Hall-effect sensor (17, 17′) configured to detect predetermined angular positions of the rotor, and a control unit configured to apply a predetermined sequence of excitation signals to the coils, wherein the Hall-effect sensors are spaced apart by an angle greater than or equal to 10°, the first Hall-effect sensor (17) is used to determine the switching times of the excitation signals and the second Hall-effect sensor (17′) is used, in combination with the first Hall-effect sensor (17), to determine the direction of rotation of the rotor when the motor starts up, or vice versa.
More Like This:
Inventors:
Jose-Louis, Errada
Application Number:
JP2020573240A
Publication Date:
January 23, 2023
Filing Date:
June 27, 2019
Export Citation:
Assignee:
Valeo System Descheuge
International Classes:
H02P6/16; H02K29/08
Domestic Patent References:
| JP4772146B2 | ||||
| JP10075594A | ||||
| JP2005110363A | ||||
| JP2014013809A |
Foreign References:
| FR3059174A1 |
Attorney, Agent or Firm:
Nakamura Yukitaka
Satoru Asakura
Yukihiro Hotta
Yoshiki Kanagawa
Satoru Asakura
Yukihiro Hotta
Yoshiki Kanagawa