公开(公告)号：US10473210B2

公开(公告)日：2019-11-12

申请号：US15239349

申请日：2016-08-17

Applicant: GM Global Technology Operations LLC

Inventor： Daryl A. Wilton ,  James M. Hart ,  Eric C. Sandstrom

IPC: F16H57/04 ,  F16H61/30 ,  F16H3/66 ,  F16H57/10 ,  F16H61/00 ,  F16H57/08

Abstract: A transmission sealed low leak controls system includes a controls system having a first fluid for operation of the controls system provided by a first pump at a first pressure. A transmission input shaft is provided. A planetary gear set is connected to the transmission input shaft by a clutch assembly. A second pump provides a second fluid different from the first fluid for cooling and lubrication of the at least one clutch assembly at a second pressure lower than the first pressure. A torque converter is connected to the transmission input shaft. The second pump further provides the second fluid to the torque converter.

公开(公告)号：US20180051796A1

公开(公告)日：2018-02-22

申请号：US15239349

申请日：2016-08-17

Applicant: GM Global Technology Operations LLC

Inventor： Daryl A. Wilton ,  James M. Hart ,  Eric C. Sandstrom

IPC: F16H57/04 ,  F16H3/66 ,  F16H61/30

CPC classification number: F16H57/0454 ,  F16H3/66 ,  F16H57/0412 ,  F16H57/0436 ,  F16H57/0441 ,  F16H57/045 ,  F16H57/0473 ,  F16H57/0484 ,  F16H57/10 ,  F16H61/0025 ,  F16H61/30 ,  F16H2057/087 ,  F16H2061/0037 ,  F16H2200/201 ,  F16H2200/2043

Abstract: A transmission sealed low leak controls system includes a controls system having a first fluid for operation of the controls system provided by a first pump at a first pressure. A transmission input shaft is provided. A planetary gear set is connected to the transmission input shaft by a clutch assembly. A second pump provides a second fluid different from the first fluid for cooling and lubrication of the at least one clutch assembly at a second pressure lower than the first pressure. A torque converter is connected to the transmission input shaft. The second pump further provides the second fluid to the torque converter.