公开(公告)号：US12009767B2

公开(公告)日：2024-06-11

申请号：US17442576

申请日：2020-03-26

Applicant: MITSUBA Corporation

Inventor： Ryo Ohori ,  Naoki Shioda ,  Masaki Hayata ,  Takashi Yatsuda ,  Atsushi Kawasaki

IPC: H02P6/16 ,  B60J7/057 ,  B60S1/08

CPC classification number: H02P6/16 ,  B60J7/0573 ,  B60S1/08 ,  H02P2209/07 ,  H02P2209/11 ,  H02P2209/13

Abstract: A motor control device for controlling a brushless motor including a rotor and a three-phase armature coil includes: a position detection unit which detects the rotational position of the rotor; a control unit which outputs, in a first control mode or a second control mode, a first drive signal or a second drive signal to an inverter at a current-supply timing based on the rotational position of the rotor; and the inverter which outputs a first current-supply signal or a second current-supply signal to the three-phase armature coil when the first drive signal or the second drive signal is input. For any two of the three phases, a duty value when the duty of the applied voltages is the same is larger in the second control mode than in the first control mode.