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    Continuously variable transmission
    11.
    发明授权
    Continuously variable transmission 有权

    公开(公告)号：US10253880B2

    公开(公告)日：2019-04-09

    申请号：US15435859

    申请日：2017-02-17

    Applicant: Fallbrook Intellectual Property Company LLC

    Inventor： Brad P. Pohl ,  Fernand A. Thomassy ,  Charles B. Lohr ,  Scott T. McBroom

    IPC: F16H15/40 ,  F16H61/664 ,  F02B67/04 ,  F16H15/42 ,  F16H15/50 ,  F16H61/00 ,  F16H61/02 ,  F16H59/40 ,  F16H63/06 ,  F16H59/70 ,  F16H63/42 ,  F16H15/52

    Abstract: Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable accessory drives (CVAD). In one embodiment, a skew-based control system is adapted to facilitate a change in the ratio of a CVAD. In another embodiment, a skew-based control system includes a skew actuator coupled to a carrier member. In some embodiments, the skew actuator is configured to rotate a carrier member of a CVT. Various inventive traction planet assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include legs configured to cooperate with the carrier members. In some embodiments, a traction planet assembly is operably coupled to the carrier members. Embodiments of a shift cam and traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.

    Continuously variable transmission
    13.
    发明授权
    Continuously variable transmission 有权

    公开(公告)号：US10197147B2

    公开(公告)日：2019-02-05

    申请号：US15074267

    申请日：2016-03-18

    Applicant: Fallbrook Intellectual Property Company LLC

    Inventor： Charles B. Lohr ,  Brad P. Pohl

    IPC: F16H15/50 ,  F16H15/52 ,  F16H55/32 ,  F16H57/04 ,  F16C19/54 ,  B62M11/16 ,  F16H57/08

    Abstract: Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) are provided. In one embodiment, a CVT has a number of spherical planets in contact with an idler assembly. Various idler assemblies can be used to facilitate to improve durability, fatigue life, and efficiency of a CVT. In one embodiment, the idler assembly has two rolling elements having contact surfaces that are angled with respect to a longitudinal axis of the CVT. In some embodiments, a bearing is operably coupled between the first and second rolling elements. The bearing is configured to balance axial force between the first and second rolling elements. In one embodiment, the bearing is a ball bearing. In another embodiment, the bearing is an angular contact bearing. In yet other embodiments, needle roller bearings are employed.

    Tapered roller drive for electric VCT phaser
    14.
    发明授权
    Tapered roller drive for electric VCT phaser 有权

    公开(公告)号：US10180088B2

    公开(公告)日：2019-01-15

    申请号：US15161203

    申请日：2016-05-21

    Applicant: BorgWarner Inc.

    Inventor： Chad McCloy

    IPC: F01L1/352 ,  F16H1/28 ,  F16H13/10 ,  F16H13/08 ,  F16H3/72 ,  F16H13/06 ,  F16H15/50 ,  F01L13/00

    Abstract: An electric phaser for dynamically adjusting a rotational relationship of a camshaft with respect to an engine crankshaft of an internal combustion engine includes an electric motor and a tapered roller drive. The tapered roller drive includes a sun, rollers, a carrier, at least one ring, and at least one load generator providing an axial load. The rollers are maintained in rolling engagement with the sun and the ring without the use of teeth. In some embodiments, the tapered roller drive is based on a fixed-sun design. In other embodiments, the tapered roller drive is based on a split ring design.

    Control Methods For A Ball-Type Continuously Variable Planetary
    16.
    发明申请
    Control Methods For A Ball-Type Continuously Variable Planetary 审中-公开

    公开(公告)号：US20180306318A1

    公开(公告)日：2018-10-25

    申请号：US15939526

    申请日：2018-03-29

    Applicant: Dana Limited

    Inventor： Jeffrey M. David ,  T. Neil McLemore

    IPC: F16H61/664 ,  F16H15/50

    CPC classification number: F16H61/664 ,  F16H15/503 ,  F16H59/14 ,  F16H59/70 ,  F16H2059/147 ,  F16H2059/704

    Abstract: Provided herein is a computer-implemented system for a ball-planetary variator (CVP) having a plurality of tiltable balls supported in a carrier, the computer-implemented system including: a digital processing device including an operating system configured to perform executable instructions and a memory device; a computer program including instructions executable by the digital processing device and including a shift actuator controller configured to control a plurality of operating conditions of the CVP; and a plurality of sensors configured to monitor the operating conditions of the CVP including: a CVP speed ratio setpoint and an input torque to the CVP. The shift actuator controller includes an actuator force model configured to provide a shift force setpoint based on the CVP speed ratio set point and the input torque to the CVP and commands a change in a carrier position of the CVP based at least in part on the shift force setpoint.

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