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    METHOD OF CONTROLLING A HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION
    4.
    发明申请
    METHOD OF CONTROLLING A HYDRAULIC CONTROL SYSTEM FOR A DUAL CLUTCH TRANSMISSION 有权
    控制双离合器变速器液压控制系统的方法

    公开(公告)号：US20150128743A1

    公开(公告)日：2015-05-14

    申请号：US14605534

    申请日：2015-01-26

    Applicant: GM Global Technology Operations LLC

    Inventor： Philip C. Lundberg ,  Bret M. Olson ,  Brian W. Whitmarsh ,  Wayne B. Vogel

    IPC: F16H61/688 ,  F16H61/28

    CPC classification number: F16H61/688 ,  F16H61/0251 ,  F16H61/2807 ,  F16H2061/0258 ,  F16H2061/2853 ,  Y10T74/19284 ,  Y10T74/20024 ,  Y10T477/73

    Abstract: A hydraulic control system for a dual clutch transmission includes a plurality of solenoids and valves in fluid communication with a plurality of clutch actuators and with a plurality of synchronizer actuators. The clutch actuators are operable to actuate a plurality of torque transmitting devices and the synchronizer actuators are operable to actuate a plurality of synchronizer assemblies. Selective activation of combinations of the solenoids allows for a pressurized fluid to activate at least one of the clutch actuators and synchronizer actuators in order to shift the transmission into a desired gear ratio.

    Abstract translation: 用于双离合器变速器的液压控制系统包括与多个离合器致动器和多个同步器致动器流体连通的多个螺线管和阀。 离合器致动器可操作以致动多个扭矩传递装置，并且同步器致动器可操作以致动多个同步器组件。 螺线管组合的选择性激活允许加压流体激活离合器致动器和同步器致动器中的至少一个，以便将变速器移动到期望的传动比。

    Hydraulic control system for an automatic transmission
    5.
    发明授权
    Hydraulic control system for an automatic transmission 有权

    公开(公告)号：US10167948B2

    公开(公告)日：2019-01-01

    申请号：US15450704

    申请日：2017-03-06

    Applicant: GM Global Technology Operations LLC

    Inventor： Chinar S. Ghike ,  Brian W. Whitmarsh ,  Joel H. Gunderson

    IPC: F16H61/00 ,  F16H61/02 ,  F16D48/06 ,  F16H61/12 ,  F16D48/02

    Abstract: A hydraulic control system for a motor vehicle transmission includes a pressure regulation subsystem in fluid communication with a pump for providing pressurized hydraulic fluid. A manual valve assembly is in direct fluid communication with the pressure regulation subsystem, and is moveable by an operator of the motor vehicle between at least park, neutral, drive, and reverse positions. A default disable valve assembly is in direct fluid communication with the manual valve assembly, a default disable solenoid, and a default select valve assembly. The manual valve assembly is in direct fluid communication with the default disable valve assembly which is in direct fluid communication with the default disable solenoid and the default select valve assembly. The default disable solenoid enables the default disable valve assembly to enable three default modes of operation and the default select valve assembly selects between two of the three default modes of operation.

    Multiplexed fluid control circuit
    9.
    发明授权
    Multiplexed fluid control circuit 有权
    复用流体控制电路

    公开(公告)号：US08485931B1

    公开(公告)日：2013-07-16

    申请号：US13706400

    申请日：2012-12-06

    Applicant: GM Global Technology Operations LLC

    Inventor： Brian W. Whitmarsh

    IPC: F16H3/72 ,  F16H48/06

    CPC classification number: B60K6/387 ,  B60K6/445 ,  B60K2006/381 ,  B60Y2400/4045 ,  B60Y2400/48 ,  F16H61/0206 ,  F16H2037/101 ,  F16H2200/2007 ,  F16H2200/2038 ,  Y02T10/6239

    Abstract: A vehicle includes one or more electric traction motors, an engine, a damper bypass clutch (DBC) assembly, a transmission, a fluid pump, a multiplexed fluid control circuit, and a controller. Two clutches and the DBC assembly are selectively engaged to select between eight transmission operating states. The DBC assembly selectively connects the engine to the transmission. The pump circulates fluid for cooling the motor(s) and actuating the clutches. The circuit has a variable force solenoid (VFS) and only three on/off solenoid valves. The solenoids are multiplexed together to control flow to the DBC assembly and to the clutches. The VFS valve controls line pressure to the on/off solenoids. The controller transmits signals to the VFS and to the on/off solenoid valves to select between the eight different transmission operating states. The multiplexed fluid control circuit is also disclosed herein.

    Abstract translation: 车辆包括一个或多个电力牵引电动机，发动机，阻尼器旁路离合器（DBC）组件，变速器，流体泵，复用流体控制电路和控制器。 选择性地接合两个离合器和DBC组件以在八个传动操作状态之间进行选择。 DBC组件选择性地将发动机连接到变速器。 泵循环流体以冷却电机并驱动离合器。 该电路具有可变力电磁阀（VFS），只有三个开/关电磁阀。 螺线管被多路复用在一起以控制到DBC组件和离合器的流动。 VFS阀控制开/关螺线管的管路压力。 控制器向VFS和开/关电磁阀发送信号，以在八种不同的传输操作状态之间进行选择。 本文还公开了多路复用流体控制电路。

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