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    Hydraulic actuator for transmissions having reduced noise
    1.
    发明授权
    Hydraulic actuator for transmissions having reduced noise 有权
    具有减少噪音的传动液压执行机构

    公开(公告)号：US08065930B2

    公开(公告)日：2011-11-29

    申请号：US12056004

    申请日：2008-03-26

    申请人： Henryk Sowul ,  Tejinder Singh ,  Brian W. Whitmarsh ,  Brian Tooman ,  James D. Hendrickson ,  Richard A. Pashnik

    发明人： Henryk Sowul ,  Tejinder Singh ,  Brian W. Whitmarsh ,  Brian Tooman ,  James D. Hendrickson ,  Richard A. Pashnik

    IPC分类号： B60K17/10 ,  F15B15/22

    CPC分类号： F15B11/123 ,  F15B15/204 ,  F15B15/22 ,  F16H61/30 ,  F16H2061/307 ,  Y10T74/20018 ,  Y10T74/20024

    摘要： The present invention provides a three position hydraulic piston assembly for a gear ratio change mechanism for a transmission exhibiting reduced gear shift noise. The three position hydraulic piston assembly includes a master piston and motion retarding assemblies that act near both travel limits of the master piston. The master piston includes symmetrical passageways that provide hydraulic fluid flow to small chambers at each end of the piston that are closed off as the piston approaches its travel limits. Hydraulic fluid trapped in the chambers decelerates the piston and is bled off through an orifice allowing the piston to reach its travel limit and quickly and quietly engage a gear ratio.

    摘要翻译： 本发明提供一种用于变速器变速机构的三位液压活塞组件，其具有减小的换档噪音。 三位置液压活塞组件包括主活塞和运动阻尼组件，其在主活塞的两个运行极限附近作用。 主活塞包括对称通道，其提供液压流体流动到在活塞的每个端部处的小室，当活塞接近其行程极限时，该活塞被封闭。 捕集在室中的液压流体使活塞减速，并通过孔口流出，允许活塞达到其行程极限，并快速且安静地接合传动比。

    Transmission hydraulic control system having an accumulator bypass valve assembly
    4.
    发明授权
    Transmission hydraulic control system having an accumulator bypass valve assembly 有权
    具有蓄能器旁通阀组件的变速器液压控制系统

    公开(公告)号：US08887498B2

    公开(公告)日：2014-11-18

    申请号：US12944274

    申请日：2010-11-11

    申请人： Todd A. Frerichs ,  Brian W. Whitmarsh

    发明人： Todd A. Frerichs ,  Brian W. Whitmarsh

    IPC分类号： F16D31/02 ,  F16H61/00 ,  F15B1/027

    CPC分类号： F16H61/0021 ,  F15B1/027 ,  F15B1/033 ,  F16H2061/0034 ,  F16H2312/14 ,  Y10T137/7923 ,  Y10T137/7925 ,  Y10T137/85986

    摘要： A system for providing pressurized hydraulic fluid includes a pump. A bypass valve assembly includes an inlet port in communication with the pump and an outlet port in communication with an accumulator. The pump and the accumulator are both in communication with a hydraulic control system that controls, lubricates, and cools a transmission of a motor vehicle. The bypass valve assembly has a valve moveable between at least a two positions. The bypass valve assembly is operable to bypass the accumulator when the vehicle is first started such that the pump charges the hydraulic control system before charging the accumulator. The accumulator provides pressurized hydraulic fluid to the hydraulic control system after vehicle start.

    摘要翻译： 用于提供加压液压流体的系统包括泵。 旁通阀组件包括与泵连通的入口端口和与蓄能器连通的出口端口。 泵和蓄能器都与控制，润滑和冷却机动车辆变速器的液压控制系统连通。 旁通阀组件具有可在至少两个位置之间移动的阀。 当车辆首次启动时，旁通阀组件可操作以绕过蓄能器，使得泵在对蓄能器充电之前对液压控制系统进行充电。 在车辆启动后，蓄能器向液压控制系统提供加压液压油。

    ELECTRO-HYDRAULIC CONTROL SYSTEM USING SHIFT VALVES FOR A HYBRID DRIVE UNIT
    5.
    发明申请
    ELECTRO-HYDRAULIC CONTROL SYSTEM USING SHIFT VALVES FOR A HYBRID DRIVE UNIT 有权
    电动液压控制系统使用移动阀进行混合驱动单元

    公开(公告)号：US20140054126A1

    公开(公告)日：2014-02-27

    申请号：US13595203

    申请日：2012-08-27

    申请人： Brian W. Whitmarsh ,  Tami A. Curtis ,  Denise Ann Miller

    发明人： Brian W. Whitmarsh ,  Tami A. Curtis ,  Denise Ann Miller

    IPC分类号： F16D25/10 ,  F16D25/12

    CPC分类号： F16H61/0206 ,  B60K6/387 ,  B60K6/442 ,  B60W10/103 ,  B60W30/18 ,  F16D48/02 ,  Y02T10/6234

    摘要： A valve body assembly for a hybrid drive unit includes a pressure regulator valve, a first on/off shift valve for controlling a stationary clutch, a second on/off shift valve for controlling a rotating clutch, and a third on/off shift valve for controlling a damper bypass clutch. The control system controls the stationary clutch and the rotating clutch to operate the hybrid drive unit in four different modes. The first shift valve, the second shift valve and the third shift valve do not include a regulated pressure feedback port, nor a pressure switch for indicating a clutch fill level.

    摘要翻译： 用于混合动力驱动单元的阀体组件包括压力调节阀，用于控制静止离合器的第一开/关换档阀，用于控制旋转离合器的第二开/关换档阀和用于控制旋转离合器的第三开/关换档阀， 控制阻尼器旁路离合器。 控制系统控制固定离合器和旋转离合器，以四种不同的模式操作混合动力驱动单元。 第一换档阀，第二换档阀和第三换档阀不包括调节压力反馈端口，也不包括用于指示离合器填充液位的压力开关。

    Line pressure control for a continuously variable transmission
    9.
    发明授权
    Line pressure control for a continuously variable transmission 有权
    无级变速器的线路压力控制

    公开(公告)号：US06669598B2

    公开(公告)日：2003-12-30

    申请号：US10078136

    申请日：2002-02-19

    申请人： Todd Roy Berger ,  Steven Patrick Moorman ,  Brian W. Whitmarsh

    发明人： Todd Roy Berger ,  Steven Patrick Moorman ,  Brian W. Whitmarsh

    IPC分类号： B60K4112

    CPC分类号： F16H61/66272 ,  F16H2061/6608 ,  Y10T477/624

    摘要： An electro-hydraulic control for a continuously variable transmission includes a first regulator valve which is controlled to provide a high pressure output to control the ratio within the continuously variable transmission and a second regulator valve which is controlled to provide an engagement pressure for torque transmitting mechanisms within the transmission. The control incorporates multiplexing of the valve components, creates prioritization of fluid flow, detection of priority mode of operation, over-pressurization protection valves, and ensures a minimum of fluid flow to the torque transmitting mechanisms and the oil cooler.

    摘要翻译： 用于无级变速器的电液控制包括第一调节阀，其被控制以提供高压输出以控制无级变速器内的比率;以及第二调节阀，其被控制以提供扭矩传递机构的接合压力 在传输内。 该控制包括阀部件的多路复用，产生流体流动的优先级，优先操作模式的检测，过压保护阀，以及确保到达扭矩传递机构和油冷却器的最小流体流量。

    Engagement control having a multiplexed hydraulic circuit for controlling a torque converter clutch and shifting clutches in an automatic transmission
    10.
    发明授权
    Engagement control having a multiplexed hydraulic circuit for controlling a torque converter clutch and shifting clutches in an automatic transmission 有权
    具有用于控制变矩器离合器和变速离合器的多路复用液压回路的接合控制

    公开(公告)号：US06622835B2

    公开(公告)日：2003-09-23

    申请号：US10078178

    申请日：2002-02-19

    申请人： Steven Patrick Moorman ,  Todd Roy Berger ,  Brian W. Whitmarsh

    发明人： Steven Patrick Moorman ,  Todd Roy Berger ,  Brian W. Whitmarsh

    IPC分类号： F16H6114

    CPC分类号： F16H61/143 ,  F16H61/12 ,  F16H2061/1236 ,  Y10T74/19163

    摘要： An electro-hydraulic control mechanism provides controlled engagement pressure for both a torque converter clutch and a shifting torque transmitting mechanism. The control mechanism include a TCC regulator valve that establishes the engagement pressure for the torque converter clutch and a TTM regulator valve that controls the engagement pressure for the torque transmitting mechanisms. An electronically-controlled variable bleed solenoid controls the output pressure level of both of the regulator valves. A control valve is employed to multiplex the output of the regulator valves and to ensure that the torque transmitting mechanism remains engaged during the engagement of the torque converter clutch. The control valve also ensure that the output pressure of the TTM regulator valve is communicated with a manual control valve in the event of an unexpected discontinuance of electrical power.

    摘要翻译： 电液控制机构为变矩器离合器和换档扭矩传递机构两者提供控制的接合压力。 控制机构包括一个确定变矩器离合器的接合压力的TCC调节阀和一个控制扭矩传递机构接合压力的TTM调节阀。 电子控制的可变泄放电磁阀控制两个调节阀的输出压力水平。 采用控制阀来对调节阀的输出进行多路复用，并确保扭矩传递机构在变矩器离合器接合期间保持啮合。 如果意外中断电力，控制阀也可确保TTM调节阀的输出压力与手动控制阀相通。