Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Hirotaka Yata

Tomoo Atarashi

Michitaka Tsuchida

Natsuki Sada

Tomoaki Nishizuru

Hiromichi Kimura

Tatsuo Obata

Masamitsu Seno

Takeshi Kuwahara

Takuya Komatsu

Atsushi Tabata

Tooru Matsubara

Yuji Iwase

Hiroyuki Shibata

Yasuo Hojo

Kunio Morisawa

Ryuji Ibaraki

Yoshihisa Yamamoto

Masahiro Kojima

Shigeki Takami

Takuma Kakinami

Makoto Iwanaka

Katsuhide Kitagawa

Yoshinori Morita

Shingo Kato

Michinobu Suzuki

Isao Fujishima

Yukio Yamada

Tatsuki Uchida

An oil pump for a vehicle includes a driven gear, a drive gear, a pump body, and a plate. The drive gear engages the driven gear. The pump body is secured to a rear cover of a transaxle case. The plate is interposed between the rear cover and the pump body. A pump chamber is formed between the rear cover and the pump body. The driven gear and the drive gear are housed in the pump chamber. The pump chamber is formed: between the plate and the pump body, or between the plate and the rear cover.

Oil pump for vehicle and vehicle with the same

A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, an output bearing that rotatably supports the output member, and a rotor bearing that rotatably supports the rotor. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on a radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the rotor bearing are arranged overlapping at a position in the axial direction.

Hybrid drive system

A vehicle drive device configured with reduced axial dimensions, while still having appropriate lubrication. The vehicle drive device is configured with an input shaft coupled to an engine, a rotary electric machine, and an output shaft coupled to wheels. A power transfer mechanism couples input shaft, the rotary electric machine, and the output shaft. A case houses at least the rotary electric machine and the power transfer mechanism. An oil reserving portion capable of reserving oil supplied by rotation of the power transfer mechanism is provided above the rotor shaft inside the case. A communication oil passage is oriented between the oil reserving portion and an inner circumferential space formed inside the rotor shaft. The rotor shaft is disposed to be inserted into the inside housing space, and has a supply communication hole that communicates between the inner circumferential space and the inside housing space.

Vehicle drive device

An electric drive device including an input member drivably coupled to an internal combustion engine, a first rotary electric machine, a second rotary electric machine disposed on an axis different from that of the first rotary electric machine, an output member drivably coupled to wheels and the second rotary electric machine, a power distribution device that distributes torque transferred from the input member to the output member and the first rotary electric machine, and a case.

A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the output gear are arranged overlapping at a position in the axial direction.

Power transmission device

A vehicle drive device configured with an input member coupled to an internal combustion engine, a rotary electric machine, an output member coupled to wheels, and a power transfer mechanism that drivably couples the input member, the rotary electric machine, and the output member. An oil collecting portion is configured to collect oil supplied by rotation of the power transfer mechanism, The collected oil falling passage is configured to cause the oil collected by the oil collecting portion to flow downward to be supplied to a portion of a facing wall surface located above a cylindrical member. A communication oil passage communicates between the gap and the inside housing space is formed at a portion of abutment between the subject support bearing and the support projecting portion.

A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that is rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the output gear are arranged overlapping at a position in the axial direction.

A hybrid vehicle driving apparatus includes: a first rotor shaft of a first electric motor, the first electric motor being disposed on a first axis; a power distribution mechanism that includes a planetary gear device and is disposed on the first axis; an output gear shaft that serves as an output member of the power distribution mechanism and is disposed on the first axis; a counter shaft disposed on a second axis; a second rotor shaft of a second electric motor disposed on a third axis; a power transmission shaft disposed on the third axis; a differential gear disposed on a fourth axis; and a casing that includes a plurality of case members. The output gear shaft, the power transmission shaft, the counter shaft, the differential gear, the first rotor shaft, and the second rotor shaft are rotatably supported by a common case member that is one of the plurality of case members.

Hybrid vehicle driving apparatus

A vehicle drive system configured with a dynamo within a case. The case is disposed on at least one axial side of the dynamo, and includes a wall portion overlapping the dynamo, which has a section that overlaps with the dynamo as viewed from the axial direction. The wall portion overlapping the dynamo includes a supply flow passage through which lubricating-cooling fluid flows, and which is formed with a first supply portion that supplies lubricating-cooling fluid to a rotor support bearing for the dynamo electric. The first supply portion includes a throttle portion whose flow passage cross-sectional area is small when compared to an upstream-side flow passage cross-sectional area in the flow direction of lubricating-cooling fluid. The supply flow passage includes a second supply portion that is a portion supplying lubricating-cooling fluid to the dynamo and higher than the first supply portion.

Vehicle drive system

A hybrid drive apparatus including an input shaft; a first motor and a second motor; a power distributing planetary gear; an intermediate transmission shaft; and a partition wall provided between a motor part including the first motor and the second motor and a transmission part including the transmission such that the intermediate shaft passes through the partition wall.

Hybrid drive apparatus

A working oil accumulated in oil reservoirs is supplied to electric motor cooling oil passages and lubricating oil passages in well-balanced manner all during the time of normal and very low temperatures in an electric drive unit. The electric drive unit comprises an electric motor and a feed oil passage, through which a working oil for cooling and lubrication is supplied to respective mechanisms of a drive unit including the electric motor, in a drive unit body. An oil reservoir communicates with a working oil supply source and is provided in an upper area of the drive unit body. A weir is provided between a first reservoir, which communicates the oil reservoir to the working oil supply source and communicated to small flow-rate discharge oil passages, and a second reservoir communicates with a large flow-rate discharge oil passage. Because discharge of the working oil to the large flow-rate discharge oil passage is thereby restricted until the working oil reaches a level to go over the weir, setting of an orifice on a side of the large flow-rate discharge oil passage in conformity to flowability of the working oil at the time of very low temperature makes it possible to prevent the working oil from excessively flowing to the side of the large flow-rate discharge oil passage at the time of normal temperature, while preventing a pressure rise in the oil reservoirs at the time of very low temperature.

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Kariya, Japan

Hirotaka Yata