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 infinitely variable transmissions (IVT). In one embodiment, a control system is adapted to facilitate a change in operating mode of an IVT. In another embodiment, a control system includes a drive clutch coupled to a source of rotational power; the drive clutch is configured to selectively engage a traction ring and a carrier of the IVT. The control system includes a one-way clutch assembly configured to selectively engage the traction ring and the carrier. In some embodiments, the control system governs the actuation of the one-way clutch to selectively lock and unlock components of the IVT. In some embodiments, the control system implements an IVT mode wherein the carrier selectively couples to a source of rotational power. In other embodiments, the control system implements a CVT mode wherein the traction ring selectively couples to a source of rotational power.

主权项

1. A transmission comprising:
a first disc mounted coaxially about a longitudinal axis of the transmission; a plurality of tiltable balls placed angularly about the longitudinal axis and in contact with the first disc; a second disc mounted coaxially about the longitudinal axis of the transmission and in contact with the plurality of tiltable balls; an idler placed radially inward of, and in contact with, the plurality of tiltable balls; a cage operably coupled to the plurality of balls; a first clutch assembly operably coupled to the cage and the first disc; a second clutch assembly operably coupled to the cage and the first disc; wherein at least two of the first disc, second disc, idler, and cage are adapted to receive a power input; and wherein at least one of the first disc, second disc, idler and cage is adapted to provide a power output.