Electric powertrain with sun bearing

    公开(公告)号:US10989297B2

    公开(公告)日:2021-04-27

    申请号:US16516855

    申请日:2019-07-19

    Abstract: An electric powertrain includes an electric machine having a rotor shaft supported for rotation about an axis. A planetary gearset is supported about the axis and includes a sun gear assembly having a sun shaft with a first end connected to the rotor shaft, a second end having a sun gear, and an inner bearing seat disposed therebetween. The planetary gearset further includes a planet carrier having planet gears and defining an outer bearing seat. At least one of the planet gears meshes with the sun gear. The planetary gearset also includes a ring gear meshing with at least one of the planet gears. A sun bearing is supported about the axis and includes an outer race disposed on the outer bearing seat, an inner race disposed on the inner bearing seat, and a plurality of spherical roller elements disposed between the inner and outer races.

    Hybrid/electric vehicle transmission

    公开(公告)号:US10821821B1

    公开(公告)日:2020-11-03

    申请号:US16396912

    申请日:2019-04-29

    Abstract: A vehicle transaxle includes a housing, an electric machine stator, a plurality of mounting plates, and a first set of fasteners. The housing has internal walls that define a cavity and an access opening to the cavity. The electric machine stator is disposed within the cavity between a first of the internal walls and the opening. The plurality of mounting plates secures a first longitudinal end of the stator to the housing proximate the opening. Each fastener of the first set of fasteners extends through one of the mounting plates, through the stator, and engages the first of the internal walls to secure a second longitudinal end of the stator to the first of the internal walls.

    Vehicle axle system
    5.
    发明授权

    公开(公告)号:US10697534B2

    公开(公告)日:2020-06-30

    申请号:US15879021

    申请日:2018-01-24

    Abstract: A vehicle axle includes a housing, differential gearing, and a first clutch. The housing defines first and second cavities. The housing also defines a channel extending between the first and second cavities. The differential gearing is disposed within the first cavity and has a carrier extending into the second cavity. The first clutch is disposed within the second cavity. The first clutch is configured to selectively couple a half-shaft to the carrier. The first clutch has friction plates that include fanned spokes positioned to draw fluid from the channel and into the second cavity.

    Lubrication and cooling oil distribution system for a vehicle transaxle

    公开(公告)号:US11754169B1

    公开(公告)日:2023-09-12

    申请号:US17859776

    申请日:2022-07-07

    Abstract: A vehicle transaxle includes a housing, an electric machine, and rotating components. The housing defines an internal cavity, a first channel, and a second channel. The first and second channels branch from a common inlet. The electric machine and rotating components are disposed within the internal cavity. The first channel is configured to deliver fluid to the electric machine for cooling. The second channel is configured to deliver the fluid to the rotating components for lubrication. The cooling channel is sized relative to the lubrication channel such that the fluid is biased from the inlet and toward the second channel in response to a temperature of the fluid being less than a threshold and is biased from the inlet and toward the first channel in response to the temperature of the fluid being greater than the threshold.

    ELECTRIC POWERTRAIN WITH SUN BEARING

    公开(公告)号:US20210018089A1

    公开(公告)日:2021-01-21

    申请号:US16516855

    申请日:2019-07-19

    Abstract: An electric powertrain includes an electric machine having a rotor shaft supported for rotation about an axis. A planetary gearset is supported about the axis and includes a sun gear assembly having a sun shaft with a first end connected to the rotor shaft, a second end having a sun gear, and an inner bearing seat disposed therebetween. The planetary gearset further includes a planet carrier having planet gears and defining an outer bearing seat. At least one of the planet gears meshes with the sun gear. The planetary gearset also includes a ring gear meshing with at least one of the planet gears. A sun bearing is supported about the axis and includes an outer race disposed on the outer bearing seat, an inner race disposed on the inner bearing seat, and a plurality of spherical roller elements disposed between the inner and outer races.

    Stator free end retainer
    9.
    发明授权

    公开(公告)号:US11258316B2

    公开(公告)日:2022-02-22

    申请号:US16593148

    申请日:2019-10-04

    Abstract: A motor for an electric vehicle includes a motor housing for receiving a stator. A plurality of caps each have an outer rim and a washer portion defining a bolt receiving opening. The outer rim of each of the caps is press-fit into the receptacles in the motor housing. The caps are each attached to the stator by one of the bolts. The heads of the bolts clamp the cap to the stator to retain one end of the stator. The outer rim holds the cap in the motor housing while the washer portion flexes axially in response to thermal expansion and contraction of the motor housing. A method is disclosed for assembling the stator into the motor housing.

    HYBRID/ELECTRIC VEHICLE TRANSMISSION
    10.
    发明申请

    公开(公告)号:US20200343785A1

    公开(公告)日:2020-10-29

    申请号:US16396932

    申请日:2019-04-29

    Abstract: A vehicle transmission includes a housing, an electric machine, a bracket, and a plurality of fasteners. The housing has internal rear and internal side walls that define a cavity. The electric machine stator and the bracket are disposed within the cavity. The bracket has a metallic inner ring and an elastomer outer ring. The elastomer outer ring engages the internal side wall. The electric machine stator is disposed between the bracket and the internal rear wall. The plurality of fasteners extends through the metallic inner ring, through the stator, and engages the rear internal wall to secure the stator to the housing.

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