Toyota Jidosha Kabushiki Kaisha

Tsuyoshi Kitahata

Atsushi Tabata

Tooru Matsubara

Tatsuya Imamura

Kenta Kumazaki

Yasuhiro Hiasa

Hiromichi Kimura

Kunio Morisawa

Tatsuo Obata

Takeshi Kuwahara

Masahiro Tanae

Toru Saitou

A driving device for a hybrid vehicle includes a transmission unit configured to output a rotation of an engine while changing rotating speed of the engine; and a first rotating electric machine. The first rotating electric machine is configured to supply a torque for increasing the rotating speed of the engine at the time of starting up of the engine to the engine through the transmission unit. At the time of starting up of the engine, the gear shift stage of the transmission unit is switched to an overdrive state. Thus, a torque sufficient for starting up of the engine can be supplied to the engine, and hence the engine can be appropriately started up.

Driving device for a hybrid vehicle

A vehicular drive system is provided with at least one electric motor and a helical gear portion which are accommodated within a casing formed by a plurality of casing members fixed to each other, wherein: said casing includes a first casing member to which a stator of each of said at least one electric motor is fixed, and a second casing member which is fixed to said first casing member so as to cooperate with said first casing member to form a space accommodating said at least one electric motor and which has a support portion supporting said helical gear portion; and a rotor of said each electric motor is rotatably supported at opposite ends thereof by said first casing member and said second casing member, respectively, while said helical gear portion is rotatably supported by said second casing member through said support portion.

Drive device for vehicle

Provided is a hybrid vehicle driving device including: a first differential mechanism configured to be connected to an engine and transmit a rotation of the engine; a second differential mechanism configured to connect the first differential mechanism and a driving wheel; and a switching device configured to shift the first differential mechanism, wherein the second differential mechanism includes a first rotation component connected to an output component of the first differential mechanism, a second rotation component connected to the first rotation machine, and a third rotation component connected to the second rotation machine and the driving wheel, and a reaction torque of the first rotation machine is corrected at a torque phase (S-Y) after a start of the gear shift operation of the first differential mechanism by the switching device while the vehicle travels by using the engine as a power source (S).

Hybrid vehicle driving device

Growing community of inventors

Toyota, Japan

Tsuyoshi Kitahata