公开(公告)号：US20180128328A1

公开(公告)日：2018-05-10

申请号：US15345566

申请日：2016-11-08

Applicant: GM Global Technology Operations LLC

Inventor： Roberto Diaz ,  David C. Webert ,  Patrick M. Gibson

IPC: F16D48/06 ,  F16D41/12

CPC classification number: F16D48/06 ,  F16D41/125 ,  F16D2500/10412 ,  F16D2500/10493 ,  F16D2500/30406 ,  F16D2500/3065 ,  F16D2500/30814 ,  F16D2500/502 ,  F16D2500/7082 ,  F16D2500/7108

Abstract: A system for determining when a selectable one-way clutch has mechanically released includes an update timer identifying if each of a converter model engine torque, a transmission input torque, and a torque converter slip are positive for a predetermined period of time. An SOWC slip value is calculated using an output signal from each of: at least one transmission internal speed sensor producing an output signal representative of a speed of an internal component of a transmission; and at least one transmission output speed sensor producing an output signal representative of a speed of an output of the transmission. An SOWC released signal is issued if either all of the measured converter model engine torque, the measured transmission input torque, and the measured torque converter slip are positive for at least the predetermined period of time, or the calculated SOWC slip value is greater than a predetermined threshold.

公开(公告)号：US09080619B2

公开(公告)日：2015-07-14

申请号：US13934299

申请日：2013-07-03

Applicant: GM Global Technology Operations LLC

Inventor： Dongxu Li ,  Timothy R. Stockdale ,  David C. Webert

IPC: F16D48/06 ,  F16D48/02 ,  F16H61/14 ,  F16D48/00

CPC classification number: F16D48/06 ,  F16D48/00 ,  F16D48/02 ,  F16D48/062 ,  F16D48/066 ,  F16D2500/30816 ,  F16D2500/30825 ,  F16D2500/3166 ,  F16D2500/70426 ,  F16H61/143 ,  F16H2061/145

Abstract: A control system for a transmission of a vehicle includes a first angular rotation module, a second angular rotation module, and a slip module. The first angular rotation module determines a first angular rotation of a first component of the transmission during a predetermined period based on a first signal generated by a first sensor. The second angular rotation module determines a second angular rotation of a second component of the vehicle during the predetermined period based on a second signal generated by a second sensor. The slip module selectively indicates that a clutch of the transmission is slipping based on the first angular rotation and the second angular rotation.

Abstract translation: 用于车辆变速器的控制系统包括第一角度旋转模块，第二角度旋转模块和滑动模块。 第一角度旋转模块基于由第一传感器产生的第一信号，在预定时段期间确定传输的第一分量的第一角度旋转。 第二角度旋转模块基于由第二传感器产生的第二信号在预定时段期间确定车辆的第二部件的第二角度旋转。 滑动模块选择性地指示传动装置的离合器基于第一角度旋转和第二角度旋转而滑动。