Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor

摘要

Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously and infinitely variable transmissions (IVT). In one embodiment, a variator is adapted to receive a control system that cooperates with a shift nut to actuate a ratio change in an IVT. In another embodiment, a neutral lock-out mechanism is adapted to cooperate with the variator to, among other things, disengage an output shaft from a variator. Various inventive mechanical couplings, such as an output engagement mechanism, are provided to facilitate a change in the ratio of an IVT for maintaining a powered zero operating condition. In one embodiment, the output engagement mechanism selectively couples an output member of the variator to a ratio adjuster of the variator. Embodiments of a ratio adjuster cooperate with other components of the IVT to support operation and/or functionality of the IVT. Among other things, user control interfaces for an IVT are disclosed.

主权项

1. A variator for an infinitely variable transmission (IVT), the variator comprising:
a plurality of power roller assemblies arranged angularly about a longitudinal axis of the transmission, the plurality of power roller assemblies configured to tilt in operation; a first traction ring in contact with the plurality of power roller assemblies, the first traction ring substantially non-rotatable; a second traction ring in contact with the plurality of power roller assemblies; a carrier adapted to transfer an input power to the plurality of power roller assemblies; and an output member operably coupled to the second traction ring, the output member adapted to translate along the longitudinal axis, the output member configured to engage and disengage selectively from the second traction ring.