Patent ID: 6561942
Filing Date: 2003-05-13
Classification: F16H

Abstract:
A powertrain having an engine and a continuously variable transmission comprising:a continuously variable drive unit having a range of speed ratios from underdrive to overdrive; a planetary gear arrangement having a pair of planetary gear sets each including three rotatable members and a pair of torque transmitting members interconnected with the planetary gear arrangement; an input shaft continuously connected with the engine, a member of one of said planetary gear sets and an input member of said continuously variable drive unit; a first transfer drive mechanism drivingly connected between the continuously variable unit and a first of said torque transmitting mechanisms; a second transfer mechanism drivingly connected between said continuously variable unit and a second of said torque transmitting mechanisms; the first torque transmitting mechanism being engaged to provide a low range of operation including a reverse range, a neutral condition, and a forward range; and said second torque transmitting mechanism being selectively operable to provide an input drive path to said planetary gear arrangement in combination with an input drive path from said engine to provide a split torque drive between said input shaft and an output shaft.