GEAR SHIFTING APPARATUS FOR MULTI-SPEED TRANSMISSION FOR ELECTRIC VEHICLES

    公开(公告)号:US20200166127A1

    公开(公告)日:2020-05-28

    申请号:US16512732

    申请日:2019-07-16

    Abstract: A gear shifting apparatus for a multi-speed transmission includes: a shifting unit controlling gear shifting by a torque of an actuator; and a parking unit controlling a parking state by the torque of the actuator. In particular, the actuator includes a control motor transmitting a driving torque to driven gears of the shifting and parking units through a drive gear, and the shifting unit includes: a fork slider slidably mounted on a fork rail; a shift fork integrally formed with the fork slider; a finger drum connected to a first driven gear engaged with the drive gear, and having a finger end; and a shift lug that rotates about a lug shaft and includes two lug ends having a different length from each other. The shift lug interacts with the finger end, and has a coupler end coupled with a pocket portion formed at the fork slider.

    POWERTRAIN FOR VEHICLE
    32.
    发明申请

    公开(公告)号:US20200039352A1

    公开(公告)日:2020-02-06

    申请号:US16194825

    申请日:2018-11-19

    Abstract: A powertrain for a vehicle, may include a first planetary gear set having three rotation elements, with an input shaft connected to a first rotation element of the three rotation elements; an output shaft connected to a second rotation element of the first planetary gear set; a differential connected to the output shaft; a brake configured to lock or release a third rotation element of the first planetary gear set; a hub connected to the second rotation element through a clutch; and a sleeve unit restricted in rotation with respect to the hub and configured to be linearly slidable along an axial direction of the first planetary gear set to change a restriction state of relative rotation between a selected driveshaft of two driveshafts receiving power from the differential, the second rotation element, the third rotation element, and the hub by linear sliding.

    TRANSMISSION FOR ELECTRIC VEHICLE
    33.
    发明申请

    公开(公告)号:US20190368587A1

    公开(公告)日:2019-12-05

    申请号:US16155601

    申请日:2018-10-09

    Abstract: A transmission for an electric vehicle may include an input shaft connect with a motor; a planetary gear set having a first rotation element directly connected to the input shaft, a second rotation element and a third rotation element; an output shaft having an output gear; a first drive gear provided in the third rotation element of the planetary gear set; a first driven gear disposed at the output shaft to be rotatable to engage with the first drive gear; a second drive gear connected to or disconnected from the input shaft; a second driven gear engaged with the second drive gear and directly connected to the first driven gear; a third drive gear directly connected to the second rotation element of the planetary gear set; and a third driven gear engaged with the third drive gear and directly connected to the output shaft.

    HYDRAULIC CONTROL SYSTEM OF DOUBLE PISTON CLUTCH UNIT FOR AUTOMATIC TRANSMISSION

    公开(公告)号:US20190186559A1

    公开(公告)日:2019-06-20

    申请号:US16037130

    申请日:2018-07-17

    Abstract: A hydraulic control system of double piston clutch device configured for an automatic transmission, which includes clutch drum connected to one rotation element, a clutch configured in the clutch drum and configured to transmit rotation power in connection with another rotation element through a clutch hub, and a double piston in which first and second pistons are disposed in series to operate the clutch by hydraulic pressure while a front end is disposed to correspond to the clutch, may include a first hydraulic chamber formed between the first piston and the clutch drum to receive the hydraulic pressure through a first passage hole in a sealed state; and a second hydraulic chamber formed between the first and second pistons to receive the hydraulic pressure through a second passage hole in the sealed state and the hydraulic pressure separately controlled is supplied to the first and second hydraulic chambers, respectively.

    APPARATUS FOR AUTO SHIFTING OF VEHICLE
    36.
    发明申请

    公开(公告)号:US20190032731A1

    公开(公告)日:2019-01-31

    申请号:US15823135

    申请日:2017-11-27

    CPC classification number: F16D43/06 F16D23/02 F16D2023/141

    Abstract: An apparatus for automatic shifting of a vehicle may include a rotation shaft connected to an output shaft to rotate together; first connecting members each having a first end portion to which a first link disposed on the rotation shaft is hinged and a second end portion to which a centrifugal weight is disposed, to pivot about the first end portions by centrifugal force; second connecting members each having a first end portion hinged to the middle portion of the first connecting member and a second end portion hinged to a second link disposed on the rotation shaft; a slider disposed on the rotation shaft to be coupled to any one of the first link and the second link and sliding in an axial direction of the rotation shaft; and a shift fork connected to the slider to engage a synchronizer with a shift stage gear.

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