公开(公告)号：US20190093677A1

公开(公告)日：2019-03-28

申请号：US16124390

申请日：2018-09-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yusuke OHGATA ,  Hiromitsu NITANI

IPC: F15B11/17

Abstract: A vehicle hydraulic system includes: (a) a hydraulic pump device to be driven by a vehicle drive source to eject a working fluid through first and second outlet ports; (b) a first line passage that guides the working fluid ejected through the first outlet port, with a hydraulic pressure being regulated to a relatively high value; (c) a downstream-side passage in which the hydraulic pressure is regulated to a relatively low value; (d) a path-switching valve device configured to allow the working fluid ejected through the second outlet port, to flow into the first line passage, when the hydraulic pressure is lower than a predetermined value, and configured to allow the working fluid ejected through the second outlet port, to flow into the downstream-side passage, when the hydraulic pressure is higher than the predetermined value; and (e) a bypass passage provided between the second outlet port and the downstream-side passage.

公开(公告)号：US20200116215A1

公开(公告)日：2020-04-16

申请号：US16560594

申请日：2019-09-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naonari SATOH ,  Atsushi AYABE ,  Kunio HATTORI ,  Yusuke OHGATA ,  Shinji OITA

IPC: F16D48/06 ,  F16D41/04 ,  F16D47/04 ,  F16H37/02

Abstract: A power transmission device for a vehicle includes a first power transmission path that is provided between an engine and a driving wheel, a second power transmission path that is provided in parallel with the first power transmission path, and an electronic control unit. The electronic control unit changes over a secondary clutch to a one-way mode while releasing a first clutch, when a request is made to change over a power transmission path between the engine and the driving wheel from the first power transmission path to the second power transmission path at a time of a predetermined state. The electronic control unit is configured to engage a second clutch when the secondary clutch is changed over to the one-way mode.

公开(公告)号：US20180328422A1

公开(公告)日：2018-11-15

申请号：US15974742

申请日：2018-05-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yusuke OHGATA ,  Hiroki KONDO ,  Makoto SAWADA ,  Shinya TOYODA ,  Shuji MORIYAMA ,  Kyohei SUZUMURA ,  Hiroki TAKEDA

IPC: F16D48/10

CPC classification number: F16D48/10 ,  F16D48/062 ,  F16D2048/0257 ,  F16H37/022 ,  F16H61/0276 ,  F16H2059/704 ,  F16H2061/1236 ,  F16H2061/661 ,  F16H2200/2041

Abstract: A control device of a vehicle power transmission device including a first power transmission path transmitting power by engaging a first clutch, a sub-clutch and a second power transmission path transmitting power by engaging a second clutch each disposed between an engine and drive wheels and parallel to each other, the device including a fail-safe valve for preventing simultaneous engagement of the first and second clutches, the fail-safe valve configured to be switched to a fail-safe spool position preventing simultaneous engagement of the first and second clutches by a hydraulic pressure of a hydraulic fluid supplied to the first clutch or an output pressure of a first electromagnetic valve controlling the hydraulic pressure and the hydraulic pressure of the hydraulic fluid supplied to the second clutch or an output pressure of a second electromagnetic valve controlling the hydraulic pressure, the second electromagnetic valve configured to increase the output pressure.

公开(公告)号：US20160052522A1

公开(公告)日：2016-02-25

申请号：US14782452

申请日：2013-04-04

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenji MATSUO ,  Yusuke OHGATA ,  Daisuke INOUE ,  Atsushi AYABE ,  Motonori KIMURA ,  Shuhei ISHIKAWA ,  Akira HINO ,  Hiroki KONDO

IPC: B60W30/19 ,  F16H61/662 ,  F16H59/48 ,  F16H59/14 ,  B60K17/00 ,  F16H59/46 ,  F16H61/04 ,  B60W10/02 ,  B60W10/107 ,  F16H61/02 ,  F16H37/02 ,  F16H59/68

CPC classification number: B60W30/19 ,  B60K17/00 ,  B60W10/02 ,  B60W10/107 ,  B60W2510/1045 ,  B60W2710/021 ,  B60W2710/1005 ,  F16H37/021 ,  F16H37/022 ,  F16H59/14 ,  F16H59/46 ,  F16H59/48 ,  F16H59/68 ,  F16H61/0262 ,  F16H61/04 ,  F16H61/662 ,  F16H61/66259 ,  F16H2037/026 ,  F16H2059/6807 ,  F16H2059/683

Abstract: Vehicle control system and method provided to change speed ratio smoothly when switching a power transmission route from a route including a geared transmission to a route including a continuously variable transmission. Vehicle control system applied to a vehicle comprising: continuously variable transmission for changing speed ratio continuously is disposed between input shaft and output shaft; geared transmission is disposed parallel to the continuously variable transmission, and is adapted to establish speed ratio that cannot be established by continuously variable transmission; and friction clutch is brought into engagement to switch torque transmission route from a route including the geared transmission to a route including the continuously variable transmission. Vehicle control system configured to start speed change operation of continuously variable transmission before the friction clutch is brought into engagement completely when switching torque transmission route from the route including the geared transmission to the route including the continuously variable transmission.

Abstract translation: 车辆控制系统和方法，用于当从包括齿轮传动的路线切换到包括无级变速器的路线的动力传输路线时，平滑地改变速比。 应用于车辆的车辆控制系统包括：连续变速传动的无级变速器设置在输入轴和输出轴之间; 齿轮传动平行于无级变速器设置，适用于建立无连续变速传动不能建立的变速比; 使摩擦离合器进入接合状态，将包括齿轮传动的路径的转矩传递路径切换到包括无级变速器的路径。 车辆控制系统，其构成为，在从包括所述齿轮传动的路径向包括所述无级变速器的路线切换转矩传递路径时，摩擦离合器完全接合之前，开始无级变速器的变速操作。

公开(公告)号：US20200378494A1

公开(公告)日：2020-12-03

申请号：US16884450

申请日：2020-05-27

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Hiromitsu NITANI ,  Yusuke OHGATA ,  Yoshinobu SOGA ,  Shinji OITA

IPC: F16H61/14 ,  F16H61/688 ,  F16H61/664

Abstract: A vehicle drive-force transmitting apparatus including: a mode switching clutch; a torque converter; a lock-up clutch included in the torque converter; a switching solenoid valve configured to output a switching pressure for switching an operating mode of the mode switching clutch between a one-way mode and a lock mode; and a lock-up clutch control valve configured to switch an operating state of the lock-up clutch between an engaged state and a released state. The mode switching clutch is to be placed in the lock mode when the switching pressure is supplied from the switching solenoid valve to the mode switching clutch. The lock-up clutch control valve is configured to receive the switching pressure supplied from the switching solenoid valve, and to switch the operating state of the lock-up clutch to the released state when the switching pressure is supplied to the lock-up clutch control valve.

公开(公告)号：US20180128107A1

公开(公告)日：2018-05-10

申请号：US15793550

申请日：2017-10-25

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN AW CO., LTD.

Inventor： Takafumi INAGAKI ,  Yoshinobu SOGA ,  Shuji MORIYAMA ,  Yusuke OHGATA ,  Yuji HATTORI ,  Kazumichi TUKUDA ,  Akihiko NOBORIO

IPC: F01C21/08 ,  F04C2/348 ,  F04C15/06 ,  F04C15/00

Abstract: A vane oil pump includes a rotor including a plurality of slits, a housing having an inner circumferential cam surface such that a first pump unit and a second pump unit taking in and discharging oil in accordance with rotation of the rotor are separately disposed in a rotational direction of the rotor, a plurality of vanes respectively fitted in the slits of the rotor, and a pressure adjusting device configured to adjust a second discharge pressure of the second pump unit to a lower pressure than a first discharge pressure of the first pump unit. A back pressure groove is disposed on the housing and is provided to supply back pressure oil to a bottom portion of each slit.

公开(公告)号：US20160121896A1

公开(公告)日：2016-05-05

申请号：US14785260

申请日：2013-04-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Kenji MATSUO ,  Yusuke OHGATA ,  Daisuke INOUE ,  Atsushi AYABE ,  Motonori KIMURA ,  Shuhei ISHIKAWA ,  Akira HINO ,  Hiroki KONDO

IPC: B60W30/188 ,  B60W10/10 ,  B60W10/02

CPC classification number: B60W30/188 ,  B60W10/02 ,  B60W10/10 ,  F16H37/022 ,  F16H61/66259 ,  F16H2037/026 ,  F16H2061/6603

Abstract: A vehicle control system and method is applied to a vehicle including: a continuously variable transmission for changing a speed ratio continuously that is disposed between an input shaft and an output shaft; a geared transmission that is disposed parallel to the continuously variable transmission, and that is adapted to establish a speed ratio that cannot be established by the continuously variable transmission; and a friction clutch that is brought into engagement to switch a torque transmission route from a route including the geared transmission to a route including the continuously variable transmission. The vehicle control system is configured to start a speed change operation of the continuously variable transmission before a commencement of clutch-to-clutch shifting between the friction clutches when switching the torque transmission route from the route including the geared transmission to the route including the continuously variable transmission.

Abstract translation: 一种车辆控制系统和方法应用于车辆，包括：无级变速器，用于连续地改变设置在输入轴和输出轴之间的速比; 与所述无级变速器平行配置的齿轮传动装置，其适于建立由所述无级变速器不能建立的速比; 以及摩擦离合器，其接合以将扭矩传递路线从包括所述齿轮传动的路线切换到包括所述无级变速器的路线。 车辆控制系统被配置为在将转矩传递路径从包括齿轮传动的路线切换到包括连续的路线的路线之前，在摩擦离合器之间的离合器离合器转换开始之前开始无级变速器的变速操作 变速传动。