公开(公告)号：US20240369131A1

公开(公告)日：2024-11-07

申请号：US18291993

申请日：2022-06-22

Applicant: JATCO LTD ,  Nissan Motor Co., Ltd.

Inventor： Hisashi TOYAMA

IPC: F16H57/02

Abstract: A case that houses a drive force transmission device includes a circular ring part, fastening boss parts, first ribs, a non-fastening boss part, and a second rib. The circular ring part defines an opening through which a shaft is configured to be inserted. The fastening boss parts are provided around the circular ring part. Fastening members are to be secured to the fastening boss parts. The first ribs are respectively formed between a portion of the fastening boss parts and the circular ring part when viewed from an axial direction of the shaft. The non-fastening boss part is provided between adjacent ones of the fastening boss parts to which the first ribs are not connected, when viewed from the axial direction. A fastening member is not configured to be secured to the non-fastening boss part. The second rib is formed between the non-fastening boss part and the circular ring part.

公开(公告)号：US12129557B2

公开(公告)日：2024-10-29

申请号：US17275123

申请日：2019-09-03

Applicant: DAIDO STEEL CO., LTD. ,  JATCO Ltd

Inventor： Junya Miyauchi ,  Kohei Yamaguchi ,  Ryohei Ishikura ,  Keiichiro Kamiya ,  Hiroki Terada ,  Kazumasa Uchida ,  Yasuo Ito ,  Hiroaki Toyota ,  Shunsuke Ohshima

IPC: C23C8/22 ,  C21D6/00 ,  C21D8/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/48

CPC classification number: C23C8/22 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/42 ,  C22C38/48

Abstract: A high surface-pressure resistant component includes a steel having a composition containing, in mass %, 0.17-0.23% of C, 0.80-1.00% of Si, 0.65-1.00% of Mn, 0.030% or less of P, 0.030% or less of S, 0.01-1.00% of Cu, 0.01-3.00% of Ni, and 0.80-1.00% of Cr, with the remainder being Fe and unavoidable impurities, in which the surface layer C concentration of a carburized and quenched layer is 0.70-0.80% in mass %.

公开(公告)号：US12092202B2

公开(公告)日：2024-09-17

申请号：US18264650

申请日：2022-01-18

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Yusuke Nakano ,  Fumikazu Nagaoka ,  Hui Jin

IPC: F16H57/04 ,  F16H57/035

CPC classification number: F16H57/0489 ,  F16H57/035 ,  F16H57/0424

Abstract: A hydraulic actuation device includes a case; an oil passage provided in the case; and a support member provided in the case and configured to support a supported member. The oil passage includes an opening portion that allows the oil passage to communicate with a space inside the case, the support member is inserted into the opening portion, and a communication between the oil passage and the space inside the case is blocked by the support member.

公开(公告)号：US12044308B2

公开(公告)日：2024-07-23

申请号：US18548259

申请日：2022-02-16

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Koichi Okuno ,  Keisuke Iwado ,  Makoto Oguri

IPC: B60W10/30 ,  B60W10/06 ,  F15B15/18 ,  F16H59/74 ,  F16H61/02

CPC classification number: F16H61/0262 ,  B60W10/06 ,  B60W10/30 ,  F15B15/18 ,  F16H59/74 ,  F16H2059/746

Abstract: Provided is a control device for a vehicle including a first oil pump that is driven by a first drive source driving a drive wheel of a vehicle and configured to supply oil to a hydraulic pressure actuation machine, and a second oil pump that is driven by a second drive source different from the first drive source and configured to supply oil to the hydraulic pressure actuation machine. The control device drives the second oil pump when a start switch of the vehicle is turned on and the first drive source is started for the first time, and drives the second oil pump when the second oil pump is not driven for a first predetermined time after the first drive source is started, and a rotation speed of the second oil pump when the first drive source is started is lower than a rotation speed of the second oil pump after the first drive source is started.

公开(公告)号：US20240229921A1

公开(公告)日：2024-07-11

申请号：US18558575

申请日：2022-03-18

Applicant: JATCO Ltd

Inventor： Masahiro KOSAKA ,  Hiroki UEHARA ,  Yoonseok CHOI ,  Doohee YOON

IPC: F16H57/04 ,  H02K7/116

CPC classification number: F16H57/0424 ,  F16H57/0423 ,  H02K7/116

Abstract: Provided is a unit including: a motor case configured to accommodate a motor, a gear case configured to accommodate a gear connected to the motor; and a cover having a portion sandwiched between the gear and the motor, in which the motor case communicates with the gear case via an opening of the cover, and the opening is positioned below a horizontal plane passing through an axis of the gear and orthogonal to a gravity direction.

公开(公告)号：US12018749B2

公开(公告)日：2024-06-25

申请号：US18548172

申请日：2022-02-25

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Tarou Murazumi ,  Hajime Tasaka ,  Keisuke Iwado ,  Hiroyuki Tokoi ,  Yuji Oishi

IPC: F16H61/12 ,  B60W10/02 ,  B60W10/06 ,  B60W30/18 ,  F16H63/50

CPC classification number: F16H61/12 ,  B60W10/02 ,  B60W10/06 ,  B60W30/18072 ,  F16H63/50 ,  B60W2030/1809 ,  B60W2510/108 ,  B60W2710/021 ,  B60W2710/0644 ,  F16H2061/1256

Abstract: In a vehicle control device for controlling the vehicle, when automatic downshift control for automatically downshifting a speed ratio of the transmission is executed in the case where a drive current value of the motor obtained when the second oil pump is driven is larger than a maximum value of the drive current value of the motor obtained when the second oil pump is driven in a normal drive state, the vehicle control device increases a minimum rotation speed of the drive source compared to a case where the drive current value of the motor is equal to or less than the maximum value, and when the automatic downshift control is executed in the case where a line pressure generated by a hydraulic pressure supplied from the first oil pump and the second oil pump is larger than a predetermined value, the vehicle control device does not increase the minimum rotation speed of the drive source even in the case where the drive current value of the motor obtained when the second oil pump is driven is larger than the maximum value.

公开(公告)号：US12018742B2

公开(公告)日：2024-06-25

申请号：US18260994

申请日：2022-01-18

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Yusuke Nakano ,  Fumikazu Nagaoka ,  Hui Jin

IPC: F16H55/56 ,  F16H9/12

CPC classification number: F16H55/56 ,  F16H9/12

Abstract: The sensor arrangement structure includes a pulley that rotates about a rotation axis; and a sensor that detects rotation of the pulley. The pulley includes a fixed pulley, a movable pulley that can be displaced relative to the fixed pulley in a direction of the rotation axis, and a plunger defining an oil chamber on a back of the movable pulley. The plunger is provided with a detection target portion in a region that can be visually recognized from the direction of the rotation axis, and the sensor is provided on a support portion that rotatably supports the fixed pulley in a direction along the rotation axis and faces the region in which the detection target portion is provided.

公开(公告)号：US11976724B2

公开(公告)日：2024-05-07

申请号：US18546622

申请日：2022-02-15

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Seiichirou Takahashi ,  Koji Saito

IPC: F16H61/662 ,  F16H61/14 ,  F16H61/66

CPC classification number: F16H61/66259 ,  F16H61/143 ,  F16H2061/145 ,  F16H2061/661

Abstract: [PROBLEMS] When an acceleration request from a driver is large, upshift is performed under a high engine rotation speed.
[SOLUTIONS] Provided is an automatic transmission, including: a torque converter that is disposed downstream of a drive source in a power transmission path and is provided with a lockup clutch; and a transmission mechanism that is disposed downstream of the torque converter and changes a speed ratio between an input shaft and an output shaft, in which in a state where the lockup clutch is engaged, when a rotation speed of the input shaft reaches a first rotation speed, the automatic transmission starts upshift, and in a state where the lockup clutch is disengaged or slips, when the rotation speed of the input shaft reaches a second rotation speed obtained by subtracting a first predetermined rotation speed from the first rotation speed, the automatic transmission starts upshift, and the first predetermined rotation speed decreases as an output torque of the drive source increases.

公开(公告)号：US20240102552A1

公开(公告)日：2024-03-28

申请号：US18264306

申请日：2022-02-07

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Shou OKUTANI ,  Masahiro KUSUDA ,  Tomohiro UTAGAWA ,  Hironori MIYAISHI ,  Seiichirou TAKAHASHI ,  Yusuke NAKANO ,  Hiromu SOYA ,  Jumpei HAYAKAWA ,  Makoto OGURI

IPC: F16H59/46

CPC classification number: F16H59/46 ,  F16H2059/683

Abstract: A continuously variable transmission includes: a first pulley and a second pulley each including a fixed pulley and a movable pulley; and an endless member wound around the first pulley and the second pulley, wherein the continuously variable transmission continuously changes a speed ratio by controlling a thrust of the movable pulley with a hydraulic pressure, the thrust of the movable pulley is made smaller as a rotation speed of the first pulley decreases, and when the rotation speed of the first pulley is lower than a predetermined rotation speed, the thrust of the movable pulley in a case where the speed ratio is on a Low side of the predetermined speed ratio is not made smaller than the thrust of the movable pulley in a case where the speed ratio is on a High side of the predetermined speed ratio.

公开(公告)号：US20240035559A1

公开(公告)日：2024-02-01

申请号：US18256656

申请日：2021-10-15

Applicant: JATCO Ltd ,  NISSAN MOTOR CO., LTD.

Inventor： Akira TSUCHIDA

IPC: F16H57/04

CPC classification number: F16H57/0423 ,  F16H57/0457

Abstract: A device includes a case; a first rotating body that has at least a part immersed in the oil in an oil bath; a second rotating body disposed in the case at a position not immersed in the oil in the oil bath; a plate; a first wall portion provided on the plate between the first rotating body and the second rotating body; a second wall portion provided above the first wall portion in a gravity direction and extending toward a direction away from the first rotating body; and a fourth wall portion provided between the first rotating body and the second rotating body and extending in a vertical direction on the plate, wherein the first wall portion is provided on a first rotating body side of the plate, and the fourth wall portion is provided on a second rotating body side of the plate.