Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Other

Nobutada Sugiura

Satoru Kasuya

Kazumasa Tsukamoto

Masahiro Hayabuchi

Masaaki Nishida

Hiroshi Kato

Kazuhisa Ozaki

Tomochika Inagaki

Kazumichi Kayama

Minoru Todo

Akitoshi Kato

Shundo Yamaguchi

Takao Taniguchi

Kazutoshi Nozaki

Hiroaki Sanji

Nobukazu Ike

Yoshinobu Nozaki

Youichi Hayakawa

Toshihiko Aoki

Takuya Ishii

Takashi Morimoto

Tatsuya Iida

Takeo Arai

Hiroshi Ito

Yasuo Hojo

Hiroshi Tsutsui

Terufumi Miyazaki

Shuzo Moroto

Atsushi Honda

Masahiko Ando

Hideo Tomomatsu

Mikio Iwase

Masaru Morise

Hirofumi Ota

Toshiki Kanada

Takeshi Torii

Yuji Kashihara

Shinji Oita

Takayuki Hisano

Shoichi Miyagawa

Takuya Nakajima

Hiroyuki Tsukamoto

Keizo Kobayashi

Takayoshi Kato

Masahiro Otake

Masanori Murakami

Kaoru Nadayoshi

Yuuji Kashihara

Shundou Yamaguchi

Tomohiro Katada

Tatsuya Sugimoto

Futomi Hanji

Seiya Ozawa

Masayuki Uchida

Shota Oue

Hayato Suzuki

A differential case has no hole other than two oil holes except for a pinion shaft hole and a pair of drive shaft holes and has an annular receiver attached thereto that has an inner periphery smaller than the outer periphery of side gear washers with respect to the rotation center of the rotation axis of drive shafts and that has an outer periphery located beyond the outermost edge of the oil holes with respect to the rotation center of the rotation axis. This controls the outflow of lubricating oil located radially outward of the inner periphery of the receiver, thus allowing the side gear washers to be supplied with lubricating oil, regardless of whether the differential case is rotating or stops rotating.

Differential apparatus

An automatic transmission including a clutch that can engage rotation transmission of two rotary members by supplying an engagement pressure to an engagement hydraulic oil chamber disposed on an outer peripheral side of a central shaft to press and move a piston member to one axial side, and disengage the rotation transmission of the two rotary members with an other-side pressing mechanism that presses and drives the piston member to the other axial side.

Automatic transmission

A power transmission apparatus including a transmission, a case that accommodates the transmission, a counter drive gear to which power from the transmission is transmitted, a counter driven gear that meshes with the counter drive gear, and a drive pinion gear that is disposed and spaced apart in an axial direction from the counter driven gear and that rotates together with the counter driven gear, the power transmission apparatus.

Power transmission apparatus

A transmission device, wherein the compound planetary gear mechanism increases the speed of the power transmitted to the input element and transmits the resultant power to the first and the second output elements when the fixable element is non-rotatably held stationary by the first brake; and the first and the second clutches are disposed on a side closer in the axial direction to the compound planetary gear mechanism than the first and the second planetary gear mechanisms.

Transmission device

An automatic transmission, wherein the reduced-speed rotation output portion and the first brake are disposed on one side, in the axial direction, of the planetary gear set; the output member is disposed on the other side, in the axial direction, of the planetary gear set; the first clutch, the second clutch, and the second brake are disposed on a side of the output member opposite to the planetary gear set in the axial direction; the first brake is disposed on an outer peripheral side of the reduced-speed rotation output portion; and the second brake is disposed on an outer peripheral side of the first clutch and the second clutch.

An automatic transmission wherein the intermediate gear and the reduced-speed rotation output are coupled to each other via a first clutch, the second ring gear and the input are coupled to each other via a second clutch, the first sun gear and the reduced-speed rotation output are coupled to each other via a third clutch, the first sun gear is coupled to a first lock, the second ring gear is coupled to a second lock, and the common carrier is coupled to an output member.

An automatic transmission that shifts power applied to an input member and outputs the shifted power to an output member, the automatic transmission including a first planetary gear mechanism, a third planetary gear mechanism, a compound planetary gear mechanism, a first clutch, a second clutch, a third clutch, a fourth clutch a first brake, and a second brake.

An automatic transmission is configured to achieve at least ten forward speeds and one reverse speeds. This is achieved through the use of two planetary gear sets with a plurality of clutches and brakes configured to operably couple different components of the two planetary gears to achieve different speeds. For example, operation of a first clutch inputs decelerated rotation of a reduction planetary gear to a third sun gear. Operation of a second clutch transmits from an input shaft to a third ring gear, a third clutch inputs decelerated rotation of the reduction planetary gear to the second sun gear, a fourth clutch transmits from the input shaft to the second carrier, a first brake prevents a second sun gear from rotating, a second brake prevents a carrier from rotating, a third brake capable prevents a third ring gear from rotating.

An automatic transmission includes a case; a speed change mechanism; a torque converter having a lock-up clutch axially arranged and freely slidably toward and away from the input shaft; a thrust bearing interposed between the flange unit and the side face of the sleeve unit on the input shaft side; a ball bearing that includes an outer race, a side face of which contacts the first step portion toward the input shaft side, and a propeller shaft connecting member capable of connecting with a propeller shaft, spline-engaging with the outer periphery of the output shaft, and contacting a side face of an inner race of the ball bearing upon being pressed axially toward the input shaft side by the propeller shaft.

A first planetary gear unit PR and a clutch Cfor outputting reduced speed rotation are located on one axial side of a second planetary gear unit PU, and a clutch Cfor connecting and disconnecting an input shaftto/from a sun gear Sand a clutch Cfor connecting and disconnecting the input shaftinput to/from a carrier CRare located on the other axial side of the second planetary gear unit PU. An output mechanism is located between the first and second planetary gear units. As compared with a drivetrain wherein the clutch Cor clutch Cis located between the two planetary gear units, the two planetary gear units can be located closer together, and a transmitting member that transmits the reduced speed rotation can be made shorter. Further, compared to a drivetrain wherein the clutches C, C, Care located together on one axial side, the oil supply to the hydraulic servos can be simplified.

Automatic speed changer

A planetary gear unit PR and a clutch Cfor outputting reduced speed rotation and a clutch Cfor connecting and disconnecting input of rotation of an input shaft to a sun gear Sare located on one axial side of a planetary gear unit PU, and a clutch Cfor connecting and disconnecting input of rotation of the input shaft to the carrier CRis located on the axially opposite of the planetary gear unit PU. By doing so, as compared to a case wherein, for example, a clutch Cand clutch Care both located between a pair of planetary gear units PR and PU, the planetary gear units PR and PU can be located more closely together, and the member that transmits the reduced speed rotation from planetary gear unit PR to planetary gear unit PU can be made shorter. Further, compared to the case wherein, for example, the clutches CCCare located on one axial side of the planetary gear units, the construction of the oil lines is simplified.

A second planetary gear unit PR and a clutch Cfor outputting reduced speed rotation are located on one axial side of a first planetary gear unit PU, with an output unit located therebetween. A clutch Cwhich connects/disconnects an input shaftto/from a sun gear Sof the planetary gear unit PU and a clutch Cconnects and disconnects the input shaft to/from a carrier CRof the planetary gear unit are on the other axial side of the first planetary gear unit PU. Compared with a transmission wherein a clutch Cor clutch Cis located between the second planetary gear unit PR and the planetary gear unit PU, the second planetary gear unit PR and the first planetary gear unit PU can be located closer together, and a member which transmits the reduced speed rotation can be made shorter. Further, compared to the case wherein, for example, the clutches C, C, Care located together on one axial side, oil supply to their servos is simplified.

A reduced rotation output unit for outputting a reduced rotation obtained by reducing rotation of an input shaft is arranged at one side of a planetary gear unit in an axial direction, a first clutch and a second clutch interposed between a second rotation element of the planetary gear unit, and a third rotation element and the input shaft are arranged at the other side of the planetary gear unit in the axial direction, and an output member is arranged between the first clutch, the second clutch and the planetary gear unit. Accordingly, it is possible to position the reduced rotation output unit and the planetary gear unit close to each other, and it is possible to make a transmission member that transmits the reduced rotation output from the reduced rotation output unit to the planetary gear unit short.

Second and third clutches are axially aligned so that the back side of the second clutch and the front side of the third clutch oppose each other, and a first clutch is positioned radially inward of the second and third clutches. Further, a clutch drum is extended so as to be used in common by the second and third clutches, the second clutch is engaged and disengaged from the axial front side by a second piston of a second oil pressure actuator, and the third clutch is engaged and disengaged from the axial rear side by a third piston of a third oil pressure actuator. The first through third clutches are positioned in a compact manner and can be independently operated.

An automatic transmission has a first brake, a third brake and a hydraulic actuator for the third brake substantially axially aligned in sequence from rear to front in a radially outer area of the transmission. In addition, a first planetary gear unit, a first one-way clutch and a second one-way clutch are provided in an axial sequence from rear to front, in a radially inner area of the transmission. In this manner, component members are mounted with good spatial efficiency in both radial and axial dimensions. Furthermore, because a carrier of the first planetary gear is connected to a third brake through the first one-way clutch, the carrier can be reversely rotated by disengaging the third brake, enabling six forward speeds.

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Nishio, Japan

Nobutada Sugiura