Nidec Elesys Corporation

Fujitsu Corporation

Hisashi Takahashi

Naoki Iwagami

Tsuyoshi Harada

Kazumasa Matsukawa

A motor control device includes a motor drive circuit including an upper arm and a lower arm, an arithmetic processor to control the motor drive circuit, an alternative circuit that can operate as a substitute to replace the arithmetic processor, and a mode switch to switch a control mode between a first control mode, in which the arithmetic processor controls the motor drive circuit, and a second control mode, in which the alternative circuit controls the motor drive circuit, based on a state of the arithmetic processor. The mode switch switches the control mode from the first control mode to the second control mode when a state of the arithmetic processor changes from a normal state to an abnormal state.

Motor control device, motor unit, and vehicle

A route data collection method includes: a transmission source apparatus transmitting a request packet to request at least layer-2 apparatuses on a route to a destination apparatus to reply a response packet including predetermined setting data of the layer-2 apparatus to the transmission source apparatus; upon receiving the request packet, the layer-2 apparatus that can respond to the request packet, reading out the predetermined setting data stored in a storage device of the layer-2 apparatus, transmitting the response packet including the predetermined setting data to the transmission source apparatus, and outputting the request packet to the destination apparatus; and upon receiving the response packet, the transmission source apparatus displaying the predetermined setting data included in the response packet on a display device.

Growing community of inventors

Kawasaki, Japan

Hisashi Takahashi