US 11,745,578 B2
P2 hybrid transmission
Farzad Samie, Franklin, MI (US); Madhusudan Raghavan, West Bloomfield, MI (US); Jian Yao, Shanghai (CN); and Alireza Fatemi, Canton, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Jan. 5, 2021, as Appl. No. 17/141,597.
Prior Publication US 2022/0212534 A1, Jul. 7, 2022
Int. Cl. B60K 6/442 (2007.10); F16H 57/02 (2012.01); F16H 45/02 (2006.01); B60K 6/383 (2007.10); B60K 6/365 (2007.10); H02K 7/00 (2006.01); H02K 7/10 (2006.01); H02K 7/116 (2006.01); F16H 57/04 (2010.01)
CPC B60K 6/442 (2013.01) [B60K 6/365 (2013.01); B60K 6/383 (2013.01); F16H 45/02 (2013.01); F16H 57/02 (2013.01); F16H 57/0476 (2013.01); H02K 7/006 (2013.01); H02K 7/10 (2013.01); H02K 7/116 (2013.01); B60Y 2200/92 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02043 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hybrid powertrain for an automobile, comprising:
a transmission adapted to provide power to wheels of the automobile;
an engine adapted to provide power to an input shaft of the transmission;
an electric motor-generator unit adapted to provide power to the input shaft of the transmission, wherein the electric motor-generator is positioned within the transmission, coaxial with the transmission input shaft, the electric motor-generator being supported by and enclosed within a pump support of the transmission; and
a torque converter positioned between and interconnecting the engine to the input shaft of the transmission, the torque converter having a one-way clutch adapted to drivingly connect the torque converter to the input shaft of the transmission when power is being provided to the torque converter from the engine and to allow the input shaft of the transmission to rotate freely relative to the torque converter when power is being provided to the input shaft of the transmission from the electric motor-generator unit.