Transmission and driveline having a tilting ball variator continuously variable transmission

摘要

A transmission is provided. The transmission includes an input portion drivingly engaged with a power source, a planetary gear, a continuously variable variator, and a clutching device. The planetary gear arrangement has a portion drivingly engaged with the input portion. The continuously variable variator includes a portion which is drivingly engaged with at least one of the planetary gear arrangement and the input portion. The clutching device may be selectively drivingly engaged with a portion of the continuously variable variator. The clutching device and the planetary gear arrangement facilitate a transition between at least two operating modes of the continuously variable variator.

主权项

1. A continuously variable transmission comprising:
an input portion drivingly engaged with a power source; a planetary gear arrangement comprising:
a carrier,a plurality of planet gears,a sun gear, anda ring gear, wherein the carrier is drivingly engaged with the input portion; a continuously variable tilting ball variator comprising:
a first drive ring,a plurality of variator ball assemblies each assembly having a variator ball and variator axis, tiltably disposed on and drivingly engaged with a variator ball carrier coupled to a variator shaft,the variator shaft, anda second drive ring, wherein the variator is drivingly engaged with the planetary gear arrangement and the input portion; and a first clutching device configured to be selectively drivingly engaged with a portion of the continuously variable tilting ball variator, wherein the first clutching device and the planetary gear arrangement facilitate a transition between at least two operating modes of the continuously variable tilting ball variator.