公开(公告)号：US20240401679A1

公开(公告)日：2024-12-05

申请号：US18694296

申请日：2022-09-27

Applicant: AISIN CORPORATION

Inventor： Takatoshi KATAYAMA ,  Nozomu TAKAHASHI ,  Takayoshi HANAI ,  Teppei YAMASHITA ,  Hiroaki SANJI

IPC: F16H37/08 ,  F16H57/02 ,  F16H57/037 ,  F16H57/04

Abstract: A vehicle drive device includes an axial oil guide passage that receives oil splashed by a differential input gear and dropping from a meshing portion between the differential input gear and a second counter gear and guides the oil in an axial direction along a third axis to a tooth surface of a first counter gear.

公开(公告)号：US20240167559A1

公开(公告)日：2024-05-23

申请号：US18505585

申请日：2023-11-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN CORPORATION

Inventor： Marina HIRATA ,  Akitaka ICHIKAWA ,  Hiroshi KAWANISHI ,  Tsukasa SAKAMAKI ,  Shohei NAGATA ,  Takayoshi HANAI ,  Teppei YAMASHITA

IPC: F16H57/04 ,  H02K7/116

CPC classification number: F16H57/0424 ,  H02K7/116

Abstract: A drive unit may include a case comprising an electric motor chamber and a gear chamber; an electric motor comprising a rotor housed in the electric motor chamber; a specific gear housed in the gear chamber; lubricant stored in the electric motor chamber and the gear chamber; and a through hole connecting the electric motor chamber and the gear chamber. An opening of the through hole on a gear chamber side may be positioned so as to face a side surface of the specific gear. A region below a center of the specific gear is defined as a lower region, a part of the lower region that is located rearward of a vertical plane passing through a center axis of the specific gear in a rotation direction of the specific gear is defined as a lower rear region, and the opening may be in the lower rear region.

公开(公告)号：US20240401691A1

公开(公告)日：2024-12-05

申请号：US18700564

申请日：2023-03-28

Applicant: AISIN CORPORATION

Inventor： Takatoshi KATAYAMA ,  Takuya MUNETO ,  Takayoshi HANAI ,  Yusuke NAITO ,  Teppei YAMASHITA

IPC: F16H57/04

Abstract: A vehicular drive device includes a rotating electrical machine, transmission mechanism, case, and communication oil passage. The case includes a first housing chamber housing the rotating electrical machine and a second housing chamber housing the transmission mechanism. The communication oil passage communicates with the first and second housing chambers. The lower part of the second housing chamber forms a second oil reservoir where oil is scraped up by gear rotation. The case includes a partition wall between the first and second housing chambers axially. The communication oil passage runs under the partition wall and includes a first and second opening. The first opening opens to the first housing chamber at a first position away from the partition wall toward the first side in the axial direction. The second opening opens to the second housing chamber at a second position away from the partition wall toward the second side axially.

公开(公告)号：US20240392877A1

公开(公告)日：2024-11-28

申请号：US18695438

申请日：2022-09-27

Applicant: AISIN CORPORATION

Inventor： Kazunori NAKAJIMA ,  Wataru WASHINO ,  Hideki ISHIKAWA ,  Nozomu TAKAHASHI ,  Takayoshi HANAI ,  Hiroaki SANJI

IPC: F16H63/34 ,  B60K1/04 ,  F16H57/04

Abstract: A parking assembly includes a parking gear in a rotary member included in the first power transmission that transmits power between a rotary electric machine and wheels and movable with the wheels, an engagement member selectively engageable with the parking gear, and a second power transmission that transmits power to the engagement member. The parking gear is coaxial with the rotary electric machine. A reservoir and the second power transmission are located above the first power transmission. An area of the reservoir in a front-rear direction, an area of the first power transmission in the front-rear direction, and an area of the second power transmission in the front-rear direction overlap an area of the rotary electric machine in the front-rear direction.

公开(公告)号：US20250042233A1

公开(公告)日：2025-02-06

申请号：US18694222

申请日：2022-09-27

Applicant: AISIN CORPORATION

Inventor： Takayoshi HANAI ,  Nozomu TAKAHASHI

IPC: B60K1/02 ,  B60K17/354 ,  B60K17/356

Abstract: A front-wheel drive unit includes a first rotor on a first axis and a first differential input gear on a second axis located in a rear direction from the first axis along an axis in a front-rear direction. A rear-wheel drive unit includes a second rotor on a third axis and a second differential input gear on a fourth axis located in a front direction from the third axis along the axis in the front-rear direction. The first rotor is in a first width direction from a first transmission gear assembly. The second rotor is in a second width direction from a second transmission gear assembly. A wheelbase between the first axis and the second axis is equal to a wheelbase between the third axis and the fourth axis. The first rotor and the second rotor rotate in reverse directions while a vehicle is traveling.

公开(公告)号：US20240405636A1

公开(公告)日：2024-12-05

申请号：US18696106

申请日：2022-09-27

Applicant: AISIN CORPORATION

Inventor： Nozomu TAKAHASHI ,  Takayoshi HANAI ,  Teppei YAMASHITA ,  Hiroaki SANJI

IPC: H02K7/00 ,  H02K1/18 ,  H02K3/50 ,  H02K7/116

Abstract: An inverter that controls a rotary electric machine is above the rotary electric machine and overlaps the rotary electric machine when viewed in a vertical direction. A differential gear assembly includes a differential input gear being an input element in the differential gear assembly. The differential input gear is at least partially located in an oil reservoir in a case and is located on a second axis different from a first axis being a rotation axis of a rotor in the rotary electric machine. The first axis is below the second axis. The rotor has a lower end located above a lower end of the differential input gear.

公开(公告)号：US20230327518A1

公开(公告)日：2023-10-12

申请号：US18031481

申请日：2021-11-10

Applicant: AISIN CORPORATION

Inventor： Akihiro HORIO ,  Nozomu TAKAHASHI ,  Takayoshi HANAI

IPC: F16H57/04 ,  H02K9/19

CPC classification number: H02K9/19 ,  F16H57/0412

Abstract: A rotary electric machine that includes a stator including a stator core and a coil, and including a radial protrusion for fastening, and a case that supports the stator core. The case includes a fastening portion to which the radial protrusion is fastened, paired stator holding portions located on respective sides of the fastening portion when viewed in an axial direction, and forming respective curved holding surfaces extending in the axial direction and abutting against or facing an outer peripheral surface of the stator core in a radial direction, and axial stator cooling oil passages formed in the respective paired stator holding portions.