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    SYSTEM AND METHOD FOR MINIMAL DRAINDOWN IN CVT
    2.
    发明申请
    SYSTEM AND METHOD FOR MINIMAL DRAINDOWN IN CVT 审中-公开

    公开(公告)号：US20170248230A1

    公开(公告)日：2017-08-31

    申请号：US15592885

    申请日：2017-05-11

    Applicant: GM Global Technology Operations LLC

    Inventor： Philip C. Lundberg

    IPC: F16H61/662 ,  F16H9/18

    CPC classification number: F16H61/66272 ,  F16H9/18 ,  F16H2061/6608 ,  F16H2061/66277 ,  F16H2312/14

    Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system provides a latching system to retain CVT clutch pressure and/or pulley pressure for one or more CVT torque transmitting mechanisms and/or CVT pulleys in a CVT transmission. Components of the hydraulic control system of the present disclosure may include blow off valves, such as ball check-valves, on the exhaust of the pulley control valves and the exhaust of the CVT clutch control valve(s), and a one-way valve, such as a supply ball check-valve, disposed adjacent to each of the fluid supply inlets of the pulley control valves and the fluid supply inlet of the CVT clutch control valve(s).

    ELECTRONIC TRANSMISSION RANGE SELECTION SUBSYSTEM IN A HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
    5.
    发明申请
    ELECTRONIC TRANSMISSION RANGE SELECTION SUBSYSTEM IN A HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION 有权
    用于自动变速器的液压控制系统中的电子变速箱范围选择子系统

    公开(公告)号：US20160167635A1

    公开(公告)日：2016-06-16

    申请号：US14570329

    申请日：2014-12-15

    Applicant: GM Global Technology Operations LLC

    Inventor： Vijay A. Neelakantan ,  Joshua McDonough ,  Matthew R. Knoth ,  Philip C. Lundberg

    IPC: B60T13/68 ,  B60T13/66

    CPC classification number: B60T13/686 ,  B60T13/662

    Abstract: A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid, a park servo connected to a park mechanism, the park servo having a park side, an out-of-park side, and a biasing member disposed on the park side. A first valve assembly includes a first inlet port in fluid communication with the source of pressurized hydraulic fluid, a first outlet port, and a first valve for selectively allowing fluid communication between the first inlet port and the first outlet port. A second valve assembly includes a second inlet port in direct fluid communication downstream of the first valve assembly, a second outlet port in direct fluid communication with the out-of-park side of the park servo, and a second valve moveable between an out-of-park position and a park position.

    Abstract translation: 用于变速器的液压控制系统包括加压液压流体源，连接到停放机构的驻车伺服机构，具有驻车侧的驻车伺服机构，驻车外侧以及设置在停车侧的偏置构件。 第一阀组件包括与加压液压流体源流体连通的第一入口端口，第一出口端口和用于选择性地允许第一入口端口和第一出口端口之间的流体连通的第一阀门。 第二阀组件包括在第一阀组件的下游直接流体连通的第二入口端口，与停放伺服器的停车外侧直接流体连通的第二出口端口，以及第二阀门， 公园位置和公园位置。

    ACTIVE THERMAL HYDRAULIC FLUID LEVEL CONTROL FOR AN AUTOMATIC TRANSMISSION
    7.
    发明申请
    ACTIVE THERMAL HYDRAULIC FLUID LEVEL CONTROL FOR AN AUTOMATIC TRANSMISSION 审中-公开
    用于自动变速器的主动热液压液位控制

    公开(公告)号：US20150285369A1

    公开(公告)日：2015-10-08

    申请号：US14676444

    申请日：2015-04-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Christopher G. Benson ,  Todd R. Berger ,  Mark David Kieliszewski ,  Philip C. Lundberg

    IPC: F16H57/04 ,  F16K31/00

    CPC classification number: F16H57/0447 ,  F16H57/0409 ,  F16H57/045 ,  F16K31/002 ,  F16K31/025

    Abstract: An active thermal hydraulic control system for a transmission is provided. The active thermal hydraulic control system improves fuel economy by storing transmission fluid in areas away from rotating components during hot operation. However, during other conditions the transmission fluid is kept in the sump. The active thermal hydraulic control system includes an active thermal valve. The active thermal valve is an electro-mechanical device which converts electrical energy into thermal energy which melts a wax pellet which in turn moves a plunger. Movement of the plunger controls the opening and closing of a valve that communicates between the sump and the side or front cover of the transmission. The system improves fuel economy by as much as 0.5% by storing excess hydraulic fluid away from rotating components.

    Abstract translation: 提供了一种用于变速器的主动热液压控制系统。 主动热液压控制系统通过在热运行期间将变速箱油储存在远离旋转部件的区域内来提高燃油经济性。 然而，在其它条件下，传输流体保持在贮槽中。 主动热液压控制系统包括主动热阀。 主动热阀是将电能转换成热能的机电装置，其将熔融蜡颗粒，蜡颗粒又移动柱塞。 柱塞的运动控制了在油底壳和变速箱的侧盖或前盖之间连通的阀的打开和关闭。 该系统通过将多余的液压油远离旋转部件而将燃油经济性提高多达0.5％。

    HYDRAULIC CONTROL SYSTEM WITH ETRS AND MULTIPLEXED CLUTCH CONTROL FOR A TRANSMISSION
    8.
    发明申请
    HYDRAULIC CONTROL SYSTEM WITH ETRS AND MULTIPLEXED CLUTCH CONTROL FOR A TRANSMISSION 有权
    具有ETRS和多路复用离合器控制的液压控制系统

    公开(公告)号：US20150129385A1

    公开(公告)日：2015-05-14

    申请号：US14517074

    申请日：2014-10-17

    Applicant: GM Global Technology Operations LLC

    Inventor： Philip C. Lundberg ,  Christopher G. Benson

    IPC: F16H61/66 ,  F16D25/00 ,  F16H61/30

    CPC classification number: F16H61/0206 ,  F16H63/3483 ,  F16H63/483 ,  F16H2061/6608

    Abstract: An electronic transmission range selection hydraulic control system includes a source of pressurized hydraulic fluid, a first mode valve assembly in fluid communication downstream of the source of pressurized hydraulic fluid, a drive clutch actuator connected to a drive clutch and in fluid communication directly downstream of the first mode valve assembly, a reverse clutch actuator connected to a reverse clutch and in fluid communication directly downstream of the first mode valve assembly, a second mode valve assembly in fluid communication directly downstream of the first mode valve assembly, and a park servo connected to the park mechanism and in fluid communication directly downstream of the first mode valve assembly and the second mode valve assembly.

    Abstract translation: 电子变速范围选择液压控制系统包括加压液压流体源，加压液压流体源下游流体连通的第一模式阀组件，连接到驱动离合器并且直接流体连通到驱动离合器的下游的驱动离合器致动器 第一模式阀组件，连接到反向离合器并且直接在第一模式阀组件的下游流体连通的倒档离合器致动器，直接在第一模式阀组件的下游流体连通的第二模式阀组件，以及连接到 停放机构并且在第一模式阀组件和第二模式阀组件的直接下游处于流体连通。

    SYSTEM AND METHOD FOR MINIMAL DRAINDOWN IN CVT
    9.
    发明申请
    SYSTEM AND METHOD FOR MINIMAL DRAINDOWN IN CVT 有权
    CVT最小排水系统及方法

    公开(公告)号：US20140357435A1

    公开(公告)日：2014-12-04

    申请号：US14269785

    申请日：2014-05-05

    Applicant: GM Global Technology Operations LLC

    Inventor： Philip C. Lundberg

    IPC: F16H9/18

    CPC classification number: F16H61/66272 ,  F16H9/18 ,  F16H2061/6608 ,  F16H2061/66277 ,  F16H2312/14

    Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system provides a latching system to retain CVT clutch pressure and/or pulley pressure for one or more CVT torque transmitting mechanisms and/or CVT pulleys in a CVT transmission. Components of the hydraulic control system of the present disclosure may include blow off valves, such as ball check-valves, on the exhaust of the pulley control valves and the exhaust of the CVT clutch control valve(s), and a one-way valve, such as a supply ball check-valve, disposed adjacent to each of the fluid supply inlets of the pulley control valves and the fluid supply inlet of the CVT clutch control valve(s).

    Abstract translation: 提供了一种用于变速器的液压控制系统。 液压控制系统提供一个闭锁系统，用于在CVT变速箱中保持一个或多个CVT扭矩传递机构和/或CVT滑轮的CVT离合器压力和/或滑轮压力。 本公开的液压控制系统的部件可以包括在滑轮控制阀的排气和CVT离合器控制阀的排气上的排气阀，例如球形止回阀，以及单向阀 （例如供应球止回阀）设置在皮带轮控制阀的每个流体供给入口和CVT离合器控制阀的流体供应入口附近。

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