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1917 条记录 (耗时 0.025 秒)

    CLUTCHING DEVICE OF AN AUTOMATIC TRANSMISSION
    61.
    发明申请
    CLUTCHING DEVICE OF AN AUTOMATIC TRANSMISSION 审中-公开

    公开(公告)号：US20190178305A1

    公开(公告)日：2019-06-13

    申请号：US16151608

    申请日：2018-10-04

    申请人： Hyundai Motor Company ,  Kia Motors Corporation

    发明人： Minho CHAE ,  Juhyeon PARK ,  Yong Uk SHIN ,  Seongwook JI

    IPC分类号： F16D25/0638 ,  F16H63/30 ,  F16D48/02

    摘要： A clutching device of an automatic transmission may include a clutch drum connected to a first rotation element, a clutch connected to the clutch drum and a second rotation element, and a piston device to operate the clutch, wherein the piston device may include a first piston forming a first sealed space with the first rotation element and the clutch drum and moving toward the clutch by a hydraulic pressure supplied to the first sealed space, a second piston forming a second sealed space with the first piston and moving toward the clutch to directly press the clutch by a hydraulic pressure supplied to the second sealed space, a spring retainer disposed on the first rotation element and forming a third space with the second piston and the first rotation element, and a return spring stored in the third space and abutted by the spring retainer and the second piston.

    Damping device for clutch actuating device
    62.
    发明授权
    Damping device for clutch actuating device 有权

    公开(公告)号：US10316871B2

    公开(公告)日：2019-06-11

    申请号：US15833499

    申请日：2017-12-06

    申请人： Hyundai Motor Company ,  Kia Motors Corporation

    发明人： Eun Sik Kim

    IPC分类号： F15B7/00 ,  F15B21/00 ,  F15B7/06 ,  F16D48/02

    摘要： A damping device for a clutch actuating device is provided. The damping device includes a first cylinder that is connected to a master cylinder by a first hydraulic line and a second cylinder that is connected to an actuating cylinder by a second hydraulic line and is disposed at a position adjacent to the first cylinder in parallel. A first piston is disposed in the first cylinder and is moved forward and backward by a fluid pressure in the first cylinder. A second piston is disposed in the second cylinder and is moved forward and backward by a fluid pressure in the second cylinder. A pressure transmitting member is supported to perform a seesaw motion when both sides of the pressure transmitting member are in contact with a pressing portion of the first piston and a pressing portion of the second piston.

    Method for operating a drive train of a motor vehicle, and drive train module of said motor vehicle
    64.
    发明授权
    Method for operating a drive train of a motor vehicle, and drive train module of said motor vehicle 有权

    公开(公告)号：US10274029B2

    公开(公告)日：2019-04-30

    申请号：US15492602

    申请日：2017-04-20

    申请人： ZF Friedrichshafen AG

    发明人： Felix Bühle ,  Falko Platzer ,  Thomas Lemp

    IPC分类号： F16D48/08 ,  B60K6/48 ,  B60W30/18 ,  B60W20/40 ,  F16D48/02

    摘要： A method for operating a drive train of a motor vehicle includes performing a startup operation of the motor vehicle or a stopping operation of the motor vehicle. A starting component (3) is engaged or bridged during the startup operation or the stopping operation of the motor vehicle. The startup operation is driven by a drive source (1). The method also includes comparing an actual value of an output shaft (22) based variable with a target value of the output shaft (22) based variable during the startup operation or the stopping operation and, on reaching or exceeding a specific deviation of the actual value from the target value, moving the starting component (3) into a slipping state. The starting component (3) transmits torque in the slipping state. A related drive train module for a motor vehicle is also provided.

    FLUID FRICTION CLUTCH
    65.
    发明申请
    FLUID FRICTION CLUTCH 审中-公开

    公开(公告)号：US20190085912A1

    公开(公告)日：2019-03-21

    申请号：US16135565

    申请日：2018-09-19

    申请人： BorgWarner Ludwigsburg GmbH

    发明人： Thomas Buchholz ,  Wolfgang U. Sorg

    IPC分类号： F16D48/02 ,  F16D35/02 ,  F16D31/06

    摘要： This disclosure relates to a fluid friction clutch having a housing, a clutch disc which is arranged at one end of a shaft which is mounted within the housing, a working chamber which is configured between the housing and the clutch disc, a storage chamber for clutch fluid, and at least one feed duct which leads from the storage chamber to the working chamber. Moreover, a pressure relief device for discharging clutch fluid from the feed duct into the storage chamber is provided.

    WORK VEHICLE
    68.
    发明申请
    WORK VEHICLE 审中-公开

    公开(公告)号：US20190039577A1

    公开(公告)日：2019-02-07

    申请号：US16074565

    申请日：2017-03-30

    申请人： KOMATSU LTD.

    发明人： Takuma NISHIMURA ,  Manabu TSUDA ,  Eiji YAMAGUCHI ,  Ryota ENOMOTO

    IPC分类号： B60T7/12 ,  F16H61/12 ,  B60W10/06 ,  F16H61/686 ,  E02F9/22 ,  F16D48/02 ,  F16H63/50

    摘要： A work vehicle includes a target speed setting unit configured to set a desired target speed, a travel speed detecting unit configured to detect a travel speed of a vehicle body, an engine, a work implement attached to the vehicle body and driven by an output of the engine, a travel device, a brake disposed between the travel device and the engine and configured to brake the travel device, a clutch disposed between the engine and the brake and configured to transmit or interrupt power from the engine to the travel device, and a controller configured to reduce a difference between the travel speed and the target speed by controlling an engagement pressure of the clutch and an engagement pressure of the brake.