公开(公告)号：US09360109B2

公开(公告)日：2016-06-07

申请号：US14254488

申请日：2014-04-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Jay Weingartz ,  Glenn W. Hoefflin

IPC: B60K17/10 ,  F16H59/02 ,  F16H61/28 ,  F16H61/04 ,  F16H61/30

CPC classification number: F16H61/2807 ,  F16H61/0403 ,  F16H61/30 ,  F16H63/3023 ,  F16H2061/0474 ,  F16H2061/2823 ,  F16H2063/303

Abstract: A method of controlling movement of an actuator fork and attached synchronizer sleeve of a transmission through a pre-synchronization phase of a synchronization event at a pre-synchronization fork velocity below a breakaway velocity such that a strut is retained to the sleeve by a ball plunger for the duration of the pre-synchronization phase. A method of adjusting one of a pressure signal and a flow signal to an actuator piston to control movement of the actuator fork includes moving the fork from an initial disengaged position through a pre-synchronization phase of a synchronization event by controlling one of a pre-synchronization fluid pressure value and flow value, where the controlled pre-synchronization fluid value is less than a threshold value corresponding to a breakaway force of a ball plunger configured to selectively retain a strut assembly to a synchronizer sleeve operatively attached to the actuator fork.

Abstract translation: 一种通过同步事件的预同步阶段来控制传动装置的执行器叉和连接的同步器套筒的移动的方法，所述同步事件在预同步叉速度低于分离速度下使得支柱通过球柱塞保持在套筒上 在预同步阶段的持续时间。 将压力信号和流量信号中的一个调整到致动器活塞以控制致动器叉的运动的方法包括通过控制预定位置之一来将叉从初始分离位置移动到同步事件的预同步阶段， 同步流体压力值和流量值，其中受控的预同步流体值小于对应于被配置为将支柱组件选择性地保持到可操作地附接到致动器叉的同步器套筒的球形柱塞的分离力的阈值。

公开(公告)号：US09273778B2

公开(公告)日：2016-03-01

申请号：US14448272

申请日：2014-07-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Jay Weingartz ,  Matthew D. Whitton ,  Xuefeng Tim Tao ,  Craig J. Hawkins

IPC: F16H61/688 ,  F16H61/04 ,  F16H59/68 ,  F16H59/44 ,  F16H59/38 ,  F16H61/00

CPC classification number: F16H61/688 ,  F16H59/38 ,  F16H59/44 ,  F16H59/46 ,  F16H59/68 ,  F16H61/0403 ,  F16H2059/6823 ,  F16H2061/0087 ,  F16H2061/0474

Abstract: A method of controlling a transmission includes selecting a target speed of a second shaft, and measuring a second speed of the second shaft and an output speed of an output shaft. The method includes detecting a rolling neutral condition wherein a first and second clutch are uncoupled from a torque generator and a synchronizer is mated to a predicted gear to apply a load in a direction, and one of a first condition wherein the output speed is decreasing and the target speed is less than the second speed and a second condition wherein the output speed is increasing and the target speed is less than the second speed. The method then includes translating the synchronizer away from the predicted gear, coupling and decoupling the second clutch to and from the torque generator, and mating the synchronizer to the predicted gear to again apply the load in the direction.

Abstract translation: 控制变速器的方法包括选择第二轴的目标速度，以及测量第二轴的第二速度和输出轴的输出速度。 该方法包括检测滚动中立状态，其中第一离合器和第二离合器与扭矩发生器分离，并且同步器与预测齿轮配合，以向方向施加负载，并且其中输出速度降低的第一状态和 目标速度小于第二速度，其中输出速度增加并且目标速度小于第二速度的第二条件。 然后，该方法包括将同步器从预测齿轮中移出，将第二离合器与扭矩发生器耦合和解耦，并将同步器与预测齿轮配合，以再次向该方向施加负载。

公开(公告)号：US20140358383A1

公开(公告)日：2014-12-04

申请号：US13906735

申请日：2013-05-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Xuefeng Tim Tao ,  Matthew Kempeinen ,  Jeryl McIver ,  Christopher Jay Weingartz ,  David H. Vu

IPC: F16H61/04

CPC classification number: F16H61/0403 ,  F16H61/688 ,  F16H2059/425 ,  F16H2061/2823 ,  F16H2061/283 ,  F16H2061/2869 ,  F16H2306/48 ,  F16H2342/042 ,  Y10T74/19284 ,  Y10T477/753

Abstract: A method of identifying a synchronous position of a synchronizer actuator fork includes sensing a deceleration rate of a first shaft, when a synchronizer is positioned in a neutral position, to define a first rate of deceleration. The synchronizer is moved along the first shaft from the neutral position toward a gear with a synchronizer actuator fork. A deceleration rate of the first shaft is sensed, while the synchronizer actuator fork moves the synchronizer along the first shaft, to identify a change from the first rate of deceleration to a second rate of deceleration. The location, of the synchronizer actuator fork relative to the first shaft, at which the rate of acceleration of the first shaft changes from the first rate of deceleration to the second rate of deceleration, is identified as the synchronous position of the synchronizer actuator fork.

Abstract translation: 识别同步器执行器叉的同步位置的方法包括当同步器位于中立位置时检测第一轴的减速度，以限定第一减速度。 同步器沿着第一轴从中立位置向具有同步器执行器叉的齿轮移动。 感测到第一轴的减速率，而同步器执行器叉沿着第一轴移动同步器，以识别从第一减速度到第二减速率的变化。 同步器执行器叉的同步位置被识别为同步器执行器叉相对于第一轴的位置，第一轴的加速度从第一减速度变化到第二减速度。