公开(公告)号：US20170299033A1

公开(公告)日：2017-10-19

申请号：US15131763

申请日：2016-04-18

Applicant: Caterpillar Inc.

Inventor： Michael Cronin ,  Kevin Meyer

IPC: F16H47/04

CPC classification number: F16H47/04 ,  F16H37/046 ,  F16H2037/088 ,  F16H2037/0893 ,  F16H2047/045

Abstract: A powertrain system in a machine includes a transmission, and a transmission drive mechanism coupled between the transmission and an engine. The transmission drive mechanism includes a split path architecture where a first input gear receives a torque input from a driveshaft and a second input gear receives a torque input from a variator. The transmission drive mechanism is thereby structured to operate the transmission at a range of speeds that is not dependent upon a speed of the engine, enabling the engine to operate at an engine speed set point or with an optimum engine speed range.

公开(公告)号：US10077828B2

公开(公告)日：2018-09-18

申请号：US15131763

申请日：2016-04-18

Applicant: Caterpillar Inc.

Inventor： Michael Cronin ,  Kevin Meyer

IPC: F16H47/04 ,  F16H37/04

CPC classification number: F16H47/04 ,  F16H37/046 ,  F16H2037/088 ,  F16H2037/0893 ,  F16H2047/045

Abstract: A powertrain system in a machine includes a transmission, and a transmission drive mechanism coupled between the transmission and an engine. The transmission drive mechanism includes a split path architecture where a first input gear receives a torque input from a driveshaft and a second input gear receives a torque input from a variator. The transmission drive mechanism is thereby structured to operate the transmission at a range of speeds that is not dependent upon a speed of the engine, enabling the engine to operate at an engine speed set point or with an optimum engine speed range.