Nsk Corporation

Kotaro Tagami

Kenji Mori

Shuji Endo

Takaaki Sekine

Shigeo Shinohara

Takeshi Senba

Hiroki Sugawara

Yoshikatsu Inada

A motor controller, an electric power steering device using the motor controller, and a vehicle using the motor controller are provided. The motor controller includes plural hardware sets configured to operate in a normal state and to output a motor current, a control operation device configured to control the plurality of hardware sets commonly, an electric motor configured to operate with motor current output from each of the plurality of hardware sets, and an abnormality diagnosis unit configured to diagnose an abnormality of each of the plurality of hardware sets. In the control device, when there is an abnormal hardware set that has been diagnosed by the abnormality diagnosis unit, the control operation device stops an operation of the abnormal hardware set that has been diagnosed, and continues driving of the electric motor with a normal hardware set.

Motor controller, electric power steering device using the motor controller, and vehicle using the motor controller

An electronic control unit () includes power modules (A), (B), an input and output board () on which an input connector () and an output connector () are mounted, and a control board (). The input and output board () and the control board () are arranged to vertically face each other. A discrete part () that is taller in height (H), (H), (H) than a half (D/2) a distance (D) between the input and output board () and the control board () is mounted only on a face (), of the input and output board (), facing the control board ().

Electronic control unit, electric power steering device, and vehicle

Growing community of inventors

Kanagawa, Japan

Kotaro Tagami