公开(公告)号：US20140142822A1

公开(公告)日：2014-05-22

申请号：US13681475

申请日：2012-11-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： DONGXU LI

IPC: F16H61/00

CPC classification number: F16H61/00 ,  F16H61/0213 ,  F16H2059/666 ,  F16H2061/0216

Abstract: A method for modifying a default transmission shift schedule for a vehicle includes monitoring current vehicle parameters and determining future roadway information at a predetermined distance in front of the vehicle. Future vehicle parameters are predicted based on the determined future roadway information. The default transmission shift schedule is modified based on the current vehicle parameters and the predicted future vehicle parameters.

Abstract translation: 用于修改车辆的默认变速器换档计划的方法包括监视当前车辆参数并且确定车辆前方预定距离处的未来道路信息。 基于确定的未来道路信息预测未来的车辆参数。 基于当前车辆参数和预测的未来车辆参数来修改默认变速器换档计划。

公开(公告)号：US20170254385A1

公开(公告)日：2017-09-07

申请号：US15060129

申请日：2016-03-03

Applicant: GM Global Technology Operations LLC

Inventor： DONGXU LI ,  Kumaraswamy V. Hebbale

IPC: F16F15/12 ,  F16F15/123

CPC classification number: F16F15/1206 ,  F16F15/1232 ,  F16H45/02 ,  F16H2045/0268 ,  F16H2045/0294

Abstract: A torsional vibration damper includes a planetary gear set having a ring gear connected to a transmission input shaft, a carrier rotatably supporting multiple planet gears individually meshed with a sun gear, and with the ring gear meshed with the planet gears. A spring cage includes a first spring support member having: a member first leg fixed to the ring gear; a member second leg rotatably connected to the transmission input shaft; and multiple first spring support member elements. A second spring support member connected to the carrier, the second spring support member having multiple second spring support member elements. Multiple springs each spring have at least one of the first spring support member elements and one of the second spring support member elements in contact with opposed ends of the spring. An inertial mass member is connected to the sun gear at a first end and has an inertial mass connected at a second end.