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    Synchronizer fork position control
    1.
    发明授权
    Synchronizer fork position control 有权
    同步叉位置控制

    公开(公告)号：US09404572B1

    公开(公告)日：2016-08-02

    申请号：US14638496

    申请日：2015-03-04

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Christopher Jay Weingartz ,  Colin Hultengren ,  Glenn W. Hoefflin

    IPC: G06F17/00 ,  F16H61/04 ,  F16H61/688 ,  F16H3/00

    CPC classification number: F16H61/688 ,  F16H59/44 ,  F16H61/12 ,  F16H2059/366 ,  F16H2061/0087 ,  F16H2061/1208 ,  F16H2061/283

    Abstract: A vehicle includes an engine, a transmission having a position-controlled clutch with a synchronizer sleeve and a synchronizer fork, an input member with an input speed, and an output member with an output speed, and a controller. The controller is programmed to register a slip-away condition when the input speed falls within a calibrated speed band and the output speed remains below a calibrated threshold speed. In response to the registered slip-away condition, the controller records a diagnostic code indicative of the synchronizer sleeve being disengaged, changes an engaged position of the synchronizer sleeve by a calibrated amount to thereby adapt the engaged position, and commands the clutch to disengage and the fork to move to a neutral position after increasing the engaged position. The controller also moves the synchronizer sleeve toward the adapted engaged position and applies the clutch when the synchronizer sleeve attains the adapted engaged position.

    Abstract translation: 车辆包括发动机，具有位置控制离合器的同步器套筒和同步叉，具有输入速度的输入构件和具有输出速度的输出构件的变速器和控制器。 控制器被编程为当输入速度落在校准的速度带内并且输出速度保持低于校准的阈值速度时注册滑移条件。 响应于注册的脱离状态，控制器记录表示同步器套筒脱离的诊断代码，将同步器套筒的接合位置改变校准量，从而适配接合位置，并指示离合器脱离， 叉子在增加接合位置后移动到中立位置。 控制器还将同步器套筒移动到适配的接合位置，并且当同步器套筒达到适配的接合位置时施加离合器。

    METHOD OF CONTROLLING A TRANSMISSION
    2.
    发明申请
    METHOD OF CONTROLLING A TRANSMISSION 有权
    控制传输的方法

    公开(公告)号：US20160033034A1

    公开(公告)日：2016-02-04

    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 ,  F16H59/38 ,  F16H59/44 ,  F16H61/04 ,  F16H59/68

    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。

    Method of controlling a synchronizer actuator fork of a transmission
    3.
    发明授权
    Method of controlling a synchronizer actuator fork of a transmission 有权

    公开(公告)号：US09605755B2

    公开(公告)日：2017-03-28

    申请号：US14549584

    申请日：2014-11-21

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Glenn W. Hoefflin ,  Minh Q. Truong ,  Christopher Jay Weingartz

    IPC: F16H61/30 ,  F16H63/30 ,  F16H61/28

    CPC classification number: F16H61/30 ,  F16H63/30 ,  F16H63/3023 ,  F16H2061/2823 ,  F16H2063/3093

    Abstract: A method and system for controlling movement of an actuator fork of a transmission through a pre-synchronization phase of a synchronization event at a pre-synchronization fork velocity includes adjusting the level of fluid pressure applied to an actuator operatively attached to the actuator fork to control the pre-synchronization fork velocity within a predetermined range of a velocity target. The method determines, via a controller, the fork velocity during the pre-synchronization phase of a current synchronization event, compares the determined fork velocity to a velocity target, and adjusts the pressure level of fluid applied to an actuator piston of the actuator to control the velocity of the actuator fork within a predetermined range defined by the velocity target during a subsequent pre-synchronization phase. The velocity target may be defined for a shift type, such as a fast or slow shift, where the shift type is determined by the controller.

    METHOD OF CONTROLLING A SYNCHRONIZER ACTUATOR FORK OF A TRANSMISSION
    4.
    发明申请
    METHOD OF CONTROLLING A SYNCHRONIZER ACTUATOR FORK OF A TRANSMISSION 有权
    控制传输同步器执行器的方法

    公开(公告)号：US20160146341A1

    公开(公告)日：2016-05-26

    申请号：US14549584

    申请日：2014-11-21

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Glenn W. Hoefflin ,  Minh Q. Truong ,  Christopher Jay Weingartz

    IPC: F16H61/30

    CPC classification number: F16H61/30 ,  F16H63/30 ,  F16H63/3023 ,  F16H2061/2823 ,  F16H2063/3093

    Abstract: A method and system for controlling movement of an actuator fork of a transmission through a pre-synchronization phase of a synchronization event at a pre-synchronization fork velocity includes adjusting the level of fluid pressure applied to an actuator operatively attached to the actuator fork to control the pre-synchronization fork velocity within a predetermined range of a velocity target. The method determines, via a controller, the fork velocity during the pre-synchronization phase of a current synchronization event, compares the determined fork velocity to a velocity target, and adjusts the pressure level of fluid applied to an actuator piston of the actuator to control the velocity of the actuator fork within a predetermined range defined by the velocity target during a subsequent pre-synchronization phase. The velocity target may be defined for a shift type, such as a fast or slow shift, where the shift type is determined by the controller.

    Abstract translation: 用于通过预同步叉速度的同步事件的预同步阶段来控制变速器的执行器叉的运动的方法和系统包括调节施加到可操作地附接到致动器叉的致动器的流体压力的水平以控制 预速同步叉速度在速度目标的预定范围内。 该方法通过控制器确定在当前同步事件的预同步阶段期间的叉速度，将确定的叉速度与速度目标进行比较，并且调节施加到致动器的致动器活塞的流体的压力水平以控制 在随后的预同步阶段期间，致动器叉的速度在由速度目标限定的预定范围内。 速度目标可以针对移位类型来定义，例如快速或慢速移位，其中移位类型由控制器确定。

    METHOD OF CONTROLLING A SYNCHRONIZER ACTUATOR FORK OF A TRANSMISSION
    6.
    发明申请
    METHOD OF CONTROLLING A SYNCHRONIZER ACTUATOR FORK OF A TRANSMISSION 有权
    控制传输同步器执行器的方法

    公开(公告)号：US20150300485A1

    公开(公告)日：2015-10-22

    申请号：US14254488

    申请日：2014-04-16

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Christopher Jay Weingartz ,  Glenn W. Hoefflin

    IPC: F16H61/28 ,  F16H61/30 ,  F16H61/04

    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。

    Method of identifying a synchronous position of a synchronizer actuator fork of a dual clutch transmission
    7.
    发明授权
    Method of identifying a synchronous position of a synchronizer actuator fork of a dual clutch transmission 有权
    识别双离合器变速器的同步器执行器叉的同步位置的方法

    公开(公告)号：US09057434B2

    公开(公告)日：2015-06-16

    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: G06F7/00 ,  F16H61/04 ,  F16H61/688 ,  F16H61/28

    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。

    Method of learning engaged positions and a neutral position of a synchronizer actuator fork of a dual clutch transmission
    8.
    发明授权
    Method of learning engaged positions and a neutral position of a synchronizer actuator fork of a dual clutch transmission 有权
    学习接合位置的方法和双离合器变速器的同步器执行器叉的中立位置

    公开(公告)号：US08831845B1

    公开(公告)日：2014-09-09

    申请号：US13870030

    申请日：2013-04-25

    Applicant: GM Global Technology Operations LLC

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

    IPC: F16H61/00 ,  F16H61/02 ,  F16H61/30 ,  B60W10/10 ,  B60W30/19

    CPC classification number: B60W10/113 ,  B60W10/02 ,  B60Y2400/4242 ,  F16H61/30 ,  F16H61/688 ,  F16H2059/6807 ,  F16H2061/283 ,  F16H2061/307 ,  F16H2342/02

    Abstract: A method of controlling a dual clutch transmission includes repeatedly moving a synchronizer into interlocking engagement with a first gear with an actuator fork, and repeatedly sensing a position of the actuator fork for each occurrence that the actuator fork moves the synchronizer into the interlocking engagement with the first gear. The sensed positions of the actuator fork are averaged to define a first engaged position of the actuator fork for engaging the first gear. A second engaged position at which the actuator fork couples the synchronizer to a second gear may be determined in the same manner. A neutral position may be determined by identifying the axial locations of peak acceleration of the actuator fork while moving between the first engaged position and the second engaged position. The identified axial locations are averaged to define the neutral position of the actuator fork.

    Abstract translation: 一种控制双离合器变速器的方法包括使同步器重复地移动到与具有致动器叉的第一齿轮的互锁接合中，并且在每次出现时反复感测致动器叉的位置，致动器叉将同步器移动到与 第一档 致动器叉的感测位置被平均以限定用于接合第一档的致动器叉的第一接合位置。 致动器叉将同步器联接到第二档的第二接合位置可以以相同的方式确定。 可以通过在第一接合位置和第二接合位置之间移动的同时识别致动器叉的峰值加速度的轴向位置来确定中立位置。 所识别的轴向位置被平均以限定致动器叉的中间位置。

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