Nsk Corporation

Masahiro Okutani

Kenji Mori

Yusuke Kikuchi

Satoshi Ozaki

Takaaki Sekine

Atsushi Horikoshi

Yoshihiro Aosaki

Shigeo Shinohara

Hisayoshi Koiwai

Takeshi Senba

A motor control apparatus includes a motor current shutoff unit inserted between a multi-phase inverter circuit and a multi-phase electric motor to shut off a current for each of plural phases, the inverter circuit including an arm for each of the plural phases, a redundant arm unit including one or more arms, a connection selecting unit selecting which one of windings of the electric motor is to be connected to each of the one or more arms of the redundant arm unit, an abnormal arm detection unit detecting an abnormality in each of the plural phases of the inverter circuit, and an abnormality control unit shutting off connection between an abnormal arm and the motor when the abnormal arm detection unit detects the abnormal arm, and connecting the one or more arms of the redundant arm unit to a winding of the motor shut off.

Motor control apparatus, electric power steering apparatus and vehicle using the same

Growing community of inventors

Gunma, Japan

Masahiro Okutani