Invention Grant
- Patent Title: Electric traction drives
- Patent Title (中): 电牵引驱动
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Application No.: US13790667Application Date: 2013-03-08
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Publication No.: US09273760B2Publication Date: 2016-03-01
- Inventor: Brad P Pohl
- Applicant: Fallbrook Intellectual Property Company LLC
- Applicant Address: US TX Cedar Park
- Assignee: Fallbrook Intellectual Property Company LLC
- Current Assignee: Fallbrook Intellectual Property Company LLC
- Current Assignee Address: US TX Cedar Park
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: F16H15/50
- IPC: F16H15/50 ; F16H37/08 ; F16H15/28 ; F16H15/52 ; B62M6/65

Abstract:
Inventive embodiments are directed to components, subassemblies, systems, and/or methods for electric traction drives employing a continuously variable transmission (CVT) having a variator provided with a plurality of tilting traction planets and opposing traction rings. In one embodiment, an electric traction drive is provided with an electromotive device configured to transfer power to or from a traction sun of a CVT. In other embodiments, an electric traction drive is provided with an electromotive device that couples to certain components of a CVT such as a traction ring, a carrier assembly, and a main axle. Various inventive shifting assemblies having shift cams and shift cam cages can be used to facilitate adjusting the transmission speed ratio of a CVT. Various related devices include embodiments of, for example, a power input apparatus, a speed ratio shifter, a shift cam actuator, a shift nut, and a carrier assembly configured to support the tilting traction planets.
Public/Granted literature
- US20130190123A1 ELECTRIC TRACTION DRIVES Public/Granted day:2013-07-25
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