公开(公告)号：US12152657B2

公开(公告)日：2024-11-26

申请号：US18295318

申请日：2023-04-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward W Mellet ,  Peter Beller ,  Mazharul Chowdhury

IPC: F16H3/44

Abstract: Compact transmission systems and vehicles with such transmission systems are provided. An exemplary compact transmission includes a drive shaft defining a drive axis and configured to be powered by a drive unit; a planetary gearset having a ring gear member, a planet gear member, a sun gear member, and a planet carrier having a carrier shaft defining a planetary axis, wherein the planetary axis is distanced from the drive axis; an output shaft defining an output axis, wherein the output axis is distanced from the planetary axis and from the drive axis; an output gear connected to the output shaft; a drive pinion gear configured to transfer torque from the drive shaft to the planetary gearset; and an output pinion gear configured to transfer torque from the planetary gearset to the output shaft.

公开(公告)号：US11662005B1

公开(公告)日：2023-05-30

申请号：US17932373

申请日：2022-09-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Edward W Mellet ,  Dongxu Li

IPC: F16H45/02 ,  B60K1/00 ,  B60K17/02

CPC classification number: F16H45/02 ,  B60K1/00 ,  B60K17/02 ,  B60Y2200/91

Abstract: A drive system includes an electric machine that generates a torque. An output shaft rotates bi-directionally and receives the torque. A coupling is disposed between the electric machine and the output shaft. The coupling includes a torque converter that multiplies the torque. One clutch transfers the torque from the electric machine to the torque converter, when the electric machine operates in a first rotational direction. Another clutch transfers the torque from the electric machine to the torque converter, when the electric machine operates in a second rotational direction that is opposite to the first rotational direction. A gearset includes a number of meshing gears and is disposed between the electric machine and the output shaft to transfer the torque to the output shaft.