Kabushiki Kaisha Toyota Jidoshokki

Shinya Sato

Hiroshi Fukasaku

Takashi Kawashima

Kazuki Najima

Tetsuya Yamada

Satoshi Okada

Motonobu Funato

Takao Kawasaki

Akira Ide

Kenji Maemura

An inverter includes a bus bar as a wiring and a ferrite core that covers the bus bar to absorb electromagnetic noise from the bus bar. The bus bar and ferrite core are integrated by mold forming using a resin material in a state of exposing a part of the ferrite core.

On-vehicle electronic device and motor-driven compressor

A heat release device is for use with a multilayer board that has an inner layer serving as a power layer. The heat release device includes a heat release member thermally and electrically connected to the power layer, and a heat release board having a heat release layer and a shield layer electrically insulated from each other. The heat release layer is thermally and electrically connected to the heat release member. The shield layer serves to shield against electromagnetic noise radiated from the heat release layer. The shield layer is electrically insulated from the heat release member connected to the heat release layer. The heat release device also includes an electrically conductive member electrically connected to the shield layer and grounded, and an insulator through which the heat release layer is thermally connected to the electrically conductive member.

Heat release device

The control device records, in advance, a current data table which specifies relationships between currents in respective phases in a three-phase motor and rotation angles of a rotor of the three-phase motor, obtains, from the current data table, a rotation angle of the rotor of the three-phase motor corresponding to a current in each phase in the three-phase motor detected by a current sensor before driving of the three-phase motor, and obtains an initial position of the rotor.

Inverter device

Growing community of inventors

Kariya, Japan

Shinya Sato