公开(公告)号：US20170037957A1

公开(公告)日：2017-02-09

申请号：US14818917

申请日：2015-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Brian H Fiore ,  Jeremy V Horgan

IPC: F16H61/02

CPC classification number: F16H61/061 ,  F16H59/0204 ,  F16H59/24 ,  F16H2059/0239 ,  F16H2061/0093 ,  F16H2306/24

Abstract: A system includes a torque converter having a turbine, a transmission having friction clutches and an input member connected to the turbine, and a controller. The controller is programmed to control a change-of-mind shift maneuver of the transmission. By executing a method, the controller detects the change-of-mind shift maneuver, predicts an acceleration profile of the turbine for a next-requested shift of the detected shift maneuver as a function of a calibrated desired shift time and an output speed of the transmission, calculates a shift control value for a next-requested shift of the shift maneuver using the predicted acceleration profile, and executes the next-requested shift via the clutches using the calculated shift control value. The shift maneuver may be a skip-at-sync quick shift-to-quick shift or power downshift-to-power downshift. The shift value may be a clutch pressure for an offgoing holding clutch or a torque management level from an engine.

Abstract translation: 一种系统包括具有涡轮机的变矩器，具有摩擦离合器的变速器和连接到涡轮机的输入构件以及控制器。 控制器被编程为控制变速器的心灵换档操纵。 通过执行一种方法，控制器检测心理变化动作的动作，根据校准的期望换档时间的函数来预测涡轮机的下一次所请求的换档操作的移动速度的加速度曲线，并且输出速度 使用预测的加速度曲线计算用于下一次请求的换档操作的换档的换档控制值，并且使用所计算的换档控制值，经由离合器执行下一个请求的换档。 换档操作可能是同步快速换档到快速换档或降档至功率降档。 换档值可以是用于离开的保持离合器的离合器压力或来自发动机的扭矩管理水平。

公开(公告)号：US10132389B2

公开(公告)日：2018-11-20

申请号：US15287948

申请日：2016-10-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Joel H. Gunderson ,  Jeremy V Horgan ,  Dongxu Li

IPC: F16H3/66 ,  F16H61/04 ,  B60W30/20 ,  B60W30/19 ,  B60W10/115 ,  F16H61/686

Abstract: A method and system are provided for shifting a vehicle transmission having several members. Each member is a first, second, or third node of a planetary gear set (of multiple planetary gear sets), or an input, output, or stationary member. A first torque transmitting mechanism is applied to transfer torque between first and second members in a low gear state. In some versions, a second torque transmitting mechanism is applied in the low gear state without substantially transferring torque between third and fourth members, and then the second torque transmitting mechanism is disengaged. A third torque transmitting mechanism is then applied without substantially transferring torque between the third and fourth members in the low gear state. The transmission is upshifted by disengaging the first torque transmitting mechanism, keeping the third torque transmitting mechanism applied, and applying the second torque transmitting mechanism to transfer torque between the third and fourth members.

公开(公告)号：US09869387B2

公开(公告)日：2018-01-16

申请号：US14818917

申请日：2015-08-05

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dara Monajemi ,  Brian H Fiore ,  Jeremy V Horgan

IPC: F16H61/06 ,  F16H59/02 ,  F16H61/00 ,  F16H59/24

CPC classification number: F16H61/061 ,  F16H59/0204 ,  F16H59/24 ,  F16H2059/0239 ,  F16H2061/0093 ,  F16H2306/24

Abstract: A system includes a torque converter having a turbine, a transmission having friction clutches and an input member connected to the turbine, and a controller. The controller is programmed to control a change-of-mind shift maneuver of the transmission. By executing a method, the controller detects the change-of-mind shift maneuver, predicts an acceleration profile of the turbine for a next-requested shift of the detected shift maneuver as a function of a calibrated desired shift time and an output speed of the transmission, calculates a shift control value for a next-requested shift of the shift maneuver using the predicted acceleration profile, and executes the next-requested shift via the clutches using the calculated shift control value. The shift maneuver may be a skip-at-sync quick shift-to-quick shift or power downshift-to-power downshift. The shift value may be a clutch pressure for an offgoing holding clutch or a torque management level from an engine.