Other

Hitachi, Ltd.

Hitachi Car Engineering Co., Ltd.

Kou Ajima

Toshiyuki Innami

Kazuo Tahara

Noriaki Hino

Taizo Miyazaki

Kim Houng Joong

Tomoyuki Hanyu

Koki Ueta

Kousaku Ohno

Ryoso Masaki

Yuzo Kadomukai

Tsunehiro Endo

Keiichi Mashino

Houng Joong Kim

Yoshimi Sakurai

Kenichirou Matsubara

The present invention is characterized by a hybrid car comprising a motor generator mechanically connected with the crank shaft of an internal combustion engine for driving a car wherein the internal combustion engine is started by electric power supplied by a battery and power is generated by rotation from the internal combustion engine to charge the battery, an inverter for controlling the drive and power generation of the motor generator, and a control circuit for controlling the inverter, this hybrid car further characterized in that the motor generator is driven by battery power to start the internal combustion engine, and after the internal combustion engine has started, the battery is charged by the generator mode operation of the motor generator using the power of the internal combustion engine, wherein a step-down chopper circuit is provided between the battery and the inverter, and step-down control is provided to ensure that the power generation voltage will reach the level of the battery charging voltage through the step-down chopper circuit.

Dynamotor of hybrid vehicle, and method of control thereof

A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.

Hybrid car and dynamo-electric machine

A motor/generator apparatus for a vehicle which includes an electric machine acting as a motor or as a generator and also includes a transmission for bi-directionally transmitting a driving force between the an electric machine and a crank shaft of an engine and which is arranged so that the direction of a rotary shaft of the transmission when the an electric machine functions as the motor is the same as that when the an electric machine functions as the generator.

Motor/generator apparatus for motor vehicle

Growing community of inventors

Hitachioota, Japan

Kou Ajima