DRIVE UNIT AND BICYCLE
    1.
    发明公开

    公开(公告)号:US20240359772A1

    公开(公告)日:2024-10-31

    申请号:US18644243

    申请日:2024-04-24

    IPC分类号: B62M6/55 B62M6/45 B62M11/04

    CPC分类号: B62M6/55 B62M6/45 B62M11/04

    摘要: A drive unit for a bicycle includes a housing, a first speed reducer including an input shaft and an output shaft coaxial with each other to reduce rotation transmitted from an electric motor, a power transmission to which rotation of the output shaft of the first speed reducer is transmitted, and a second speed reducer to change a direction of an axis of rotation transmitted from the power transmission. The housing includes a single cylindrical first housing to support the first speed reducer and the power transmission without any housing other than the first housing being interposed therebetween.

    HARMONIC PIN-RING GEAR SYSTEM
    2.
    发明公开

    公开(公告)号:US20240328498A1

    公开(公告)日:2024-10-03

    申请号:US18739084

    申请日:2024-06-10

    申请人: TQ-SYSTEMS GMBH

    摘要: A harmonic ring gear system can include at least one inner gear with external toothing, the at least one inner gear defining an axis of rotation; at least one outer gear with internal toothing arranged concentrically to the at least one inner gear about the axis of rotation, the internal toothing spaced apart from the external toothing; a pin ring positioned between the at least one inner gear and the at least one outer gear, the pin ring comprising a multiplicity of pins; and a rotary transmitter configured to lift a portion of the pins of the multiplicity of pins off the external toothing and press the portion of the pins into the internal toothing.

    POWERTRAIN FOR ELECTRIC BICYCLE
    3.
    发明公开

    公开(公告)号:US20240286707A1

    公开(公告)日:2024-08-29

    申请号:US18659154

    申请日:2024-05-09

    摘要: A powertrain for an electric bicycle has: an electric motor; a motor gear driven by the electric motor; a crankshaft adapted for connecting to crank arms; an input shaft having first and second end portions, the second end portion driven by the crankshaft; an input gear connected to the first end portion and being driven by the motor gear, the input gear driving the input shaft; at least one first gear mounted to the input shaft; an output shaft; at least one second gear mounted to the output shaft and being driven by the at least one first gear; a drive sprocket driven by the output shaft; and a torque sensor disposed between the second end portion and the at least one first gear for sensing torque applied to the input shaft. The electric motor is controlled based at least in part on torque sensed by the torque sensor.

    Drive Unit of a Vehicle which can be Operated by Means of Muscle Power and/or Motor Power

    公开(公告)号:US20230391419A1

    公开(公告)日:2023-12-07

    申请号:US18320015

    申请日:2023-05-18

    申请人: Robert Bosch GmbH

    IPC分类号: B62M6/55

    CPC分类号: B62M6/55

    摘要: A drive unit of a vehicle includes a motor and a crankshaft mechanically coupled by a transmission and located within a housing. The transmission includes a first gear wheel rotatable about a motor axis and a second gear wheel rotatable about a crank axis. The housing includes a first fastening region and a second fastening region, configured for fastening the drive unit to a frame interface of the vehicle, wherein, in a cutting plane through the drive unit and orthogonally to the crank axis, a longitudinal axis is defined that intersects the crank axis and the motor axis, and a first line is defined that is orthogonal to the longitudinal axis and tangential on an outer circumference of the motor, and wherein the first fastening region has a first center point arranged on the first line or on a side of the first line facing away from the crank axis.