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    Transmission with cold shift delay mitigation
    1.
    发明授权
    Transmission with cold shift delay mitigation 有权

    公开(公告)号：US10393232B2

    公开(公告)日：2019-08-27

    申请号：US15596498

    申请日：2017-05-16

    Applicant: GM Global Technology Operations LLC

    Inventor： David C. Webert ,  Todd R. Berger

    IPC: F16H3/66 ,  F16H61/00 ,  F16H63/48 ,  F16H59/72

    Abstract: A method of operating a motor vehicle transmission includes measuring an operating temperature of the transmission, the transmission having at least seven torque transmitting mechanisms and at least three planetary gear sets, each planetary gear set having three gear members; determining if the transmission is in a park mode; determining if the operating temperature is below a predetermined threshold; if the operating temperature is below the predetermined threshold and the transmission is the park mode, implementing a shift delay mitigation process that includes engaging a fourth torque transmitting mechanism and a firth torque transmitting mechanism of the at least seven torque transmitting mechanisms so that they are locked to a ground to prevent a first gear member of the first planetary gear set from moving, which, in turn, prevents an input torque being transferred to a park pawl.

    Transmission with electronic range selector and pre-emptive power loss control logic
    2.
    发明授权
    Transmission with electronic range selector and pre-emptive power loss control logic 有权
    使用电子量程选择器和先占功率损耗控制逻辑进行传输

    公开(公告)号：US09383007B2

    公开(公告)日：2016-07-05

    申请号：US14462807

    申请日：2014-08-19

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven P. Moorman ,  Todd R. Berger ,  Orson S. Wang ,  Dong Da

    IPC: F16H61/16 ,  F16H61/12 ,  F16H59/44

    CPC classification number: F16H61/16 ,  F16H59/12 ,  F16H59/44 ,  F16H61/12 ,  F16H63/42 ,  F16H2061/1232 ,  F16H2061/1292 ,  F16H2061/168

    Abstract: A vehicle includes an engine, a transmission with a shift valve, an alternator, an auxiliary battery, a voltage sensor operable to measure an auxiliary voltage, and an electronic transmission range selection (ETRS) system. The ETRS system includes a controller, and also an electronic range selector device that transmits an electronic range request signal to the controller to request the shift of the transmission to a requested operating range. The controller executes a method to predict a loss of auxiliary power aboard the vehicle, and to control an action of the vehicle in response to the predicted loss of auxiliary power. The electronic range request signal is received from the range selector device and auxiliary voltage. The controller calculates a slope of a decrease in the measured auxiliary voltage. A control action is executed with the alternator is in the charging state and the calculated slope exceeds a calibrated slope threshold.

    Abstract translation: 车辆包括发动机，具有换档阀的变速器，交流发电机，辅助电池，可操作以测量辅助电压的电压传感器和电子变速器范围选择（ETRS）系统。 ETRS系统包括控制器以及电子量程选择器装置，其将电子范围请求信号发送到控制器，以请求将传输转移到所请求的操作范围。 控制器执行一种方法来预测车辆上的辅助动力的损失，并且响应于预计的辅助动力的损失来控制车辆的动作。 从量程选择装置和辅助电压接收电子范围请求信号。 控制器计算测量的辅助电压下降的斜率。 在交流发电机处于充电状态并且所计算的斜率超过校准斜率阈值的情况下执行控制动作。

    HYDRAULIC ACCUMULATOR FILL ESTIMATION FOR CONTROLLING AUTOMATIC ENGINE STOP/START
    4.
    发明申请
    HYDRAULIC ACCUMULATOR FILL ESTIMATION FOR CONTROLLING AUTOMATIC ENGINE STOP/START 审中-公开
    用于控制自动发动机停止/启动的液压累加器填充估计

    公开(公告)号：US20140163845A1

    公开(公告)日：2014-06-12

    申请号：US13712148

    申请日：2012-12-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Paul G. Otanez ,  Zhen J. Zhang ,  Casie M. Bockenstette ,  Todd R. Berger ,  Kristopher J. Kokko ,  Min K. Kim

    IPC: F02D29/02

    CPC classification number: F02D29/02 ,  F02D41/0215 ,  F02N11/084 ,  F16H61/0021 ,  F16H2061/0034 ,  F16H2312/14 ,  Y02T10/48

    Abstract: A method of preventing an automatic engine stop includes: determining a pressure difference between an accumulator fill volume and a fluid conduit in selective fluid communication with the accumulator fill volume; determining a change in the accumulator fill volume from the determined pressure difference; adding the change in the accumulator fill volume to a previous estimate of the accumulator fill volume to determine a current estimate of the accumulator fill volume; comparing the current estimate of the accumulator fill volume to a predetermined threshold; and preventing an automatic engine stop if the current estimate of the accumulator fill volume is below the predetermined threshold.

    Abstract translation: 一种防止自动发动机停止的方法包括：确定蓄液器填充容积与流体导管之间的压力差，以便与储液器填充容积选择性流体连通; 从所确定的压力差确定所述蓄液器填充容积的变化; 将累加器填充量的变化加到累加器填充容积的先前估计值以确定累加器填充容积的当前估计值; 将蓄电池充电量的当前估计值与预定阈值进行比较; 并且如果累积器填充量的当前估计值低于预定阈值，则防止自动发动机停止。

    TORQUE CONVERTER HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
    5.
    发明申请
    TORQUE CONVERTER HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION 有权
    用于自动变速器的扭矩变换器液压控制系统

    公开(公告)号：US20140047828A1

    公开(公告)日：2014-02-20

    申请号：US13961467

    申请日：2013-08-07

    Applicant: GM Global Technology Operations LLC

    Inventor： Christopher G. Benson ,  Todd R. Berger

    IPC: F15B15/26

    CPC classification number: F15B15/26 ,  F16H57/04 ,  F16H61/0206 ,  F16H61/143 ,  F16H2061/0037

    Abstract: A torque converter hydraulic control subsystem for a transmission is provided. The torque converter hydraulic control subsystem includes a source of pressurized hydraulic fluid that communicates with a torque converter clutch (TCC) regulation valve, a TCC control valve, and a lubrication boost valve. The torque converter hydraulic control subsystem is configured to provide cooling and lubrication fluid flow to a torque converter in all modes of operation.

    Abstract translation: 提供变速器变矩器液压控制子系统。 变矩器液压控制子系统包括与变矩器离合器（TCC）调节阀，TCC控制阀和润滑增压阀连通的加压液压流体源。 变矩器液压控制子系统被配置为在所有操作模式下向液力变矩器提供冷却和润滑流体流。

    HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION
    6.
    发明申请
    HYDRAULIC CONTROL SYSTEM FOR AN AUTOMATIC TRANSMISSION 有权
    液压控制系统自动变速器

    公开(公告)号：US20130327172A1

    公开(公告)日：2013-12-12

    申请号：US13905180

    申请日：2013-05-30

    Applicant: GM Global Technology Operations LLC

    Inventor： Todd R. Berger ,  Christopher G. Benson ,  John E. Marano

    IPC: F16H59/04

    CPC classification number: F16H59/045 ,  F16H61/0206 ,  F16H61/686 ,  Y10T74/20024

    Abstract: A hydraulic control system for a transmission of a motor vehicle includes a source of pressurized hydraulic fluid that communicates with an analog electronic transmission range selection (ETRS) subsystem or a manual valve. The ETRS subsystem includes an ETRS valve, a park servo, a park mechanism, a mode valve, and a plurality of solenoids. The ETRS and manual valve communicate with a clutch actuator subsystem that engages a one-way clutch and six clutches/brakes.

    Abstract translation: 用于机动车辆的变速器的液压控制系统包括与模拟电子变速范围选择（ETRS）子系统或手动阀连通的加压液压流体源。 ETRS子系统包括ETRS阀，驻车伺服器，驻车机构，模式阀和多个螺线管。 ETRS和手动阀与与单向离合器和六个离合器/制动器接合的离合器执行器子系统连通。

    TRANSMISSION WITH COLD SHIFT DELAY MITIGATION
    8.
    发明申请
    TRANSMISSION WITH COLD SHIFT DELAY MITIGATION 审中-公开

    公开(公告)号：US20180335133A1

    公开(公告)日：2018-11-22

    申请号：US15596498

    申请日：2017-05-16

    Applicant: GM Global Technology Operations LLC

    Inventor： David C. Webert ,  Todd R. Berger

    IPC: F16H61/10 ,  F16H3/66 ,  F16H59/72

    CPC classification number: F16H3/66 ,  F16H59/72 ,  F16H61/0059 ,  F16H63/48 ,  F16H63/486 ,  F16H2200/0065 ,  F16H2200/201 ,  F16H2200/2048 ,  F16H2200/2066 ,  F16H2200/2082

    Abstract: A method of operating a motor vehicle transmission includes measuring an operating temperature of the transmission, the transmission having at least seven torque transmitting mechanisms and at least three planetary gear sets, each planetary gear set having three gear members; determining if the transmission is in a park mode; determining if the operating temperature is below a predetermined threshold; if the operating temperature is below the predetermined threshold and the transmission is the park mode, implementing a shift delay mitigation process that includes engaging a fourth torque transmitting mechanism and a firth torque transmitting mechanism of the at least seven torque transmitting mechanisms so that they are locked to a ground to prevent a first gear member of the first planetary gear set from moving, which, in turn, prevents an input torque being transferred to a park pawl.

    SELECTABLE ONE-WAY CLUTCH WITH TORQUE INDEPENDENT RELEASE ELEMENT
    9.
    发明申请
    SELECTABLE ONE-WAY CLUTCH WITH TORQUE INDEPENDENT RELEASE ELEMENT 有权

    公开(公告)号：US20170130784A1

    公开(公告)日：2017-05-11

    申请号：US14934220

    申请日：2015-11-06

    Applicant: GM Global Technology Operations LLC

    Inventor： Kelly E. Eber ,  Todd R. Berger ,  Christopher G. Benson

    IPC: F16D41/16 ,  F16D45/00 ,  F16D41/12

    CPC classification number: F16D41/16 ,  F16D41/125 ,  F16D41/14 ,  F16D45/00

    Abstract: A one-way clutch includes a clutch body and body bore. A clutch plate stack includes first, second, and third clutch plates, the first and third clutch plates fixed to the clutch body. The second clutch plate rotates axially on a longitudinal axis. The first clutch plate includes a first strut cavity and the second clutch plate includes a second strut cavity. A forward strut is rotatably connected to the second clutch plate and biased toward the first clutch plate. The forward strut when positioned in the first strut cavity defines a clutch engaged position preventing second clutch plate rotation in a first rotational direction, while allowing rotation in a second rotational direction. A reverse strut slidably disposed in a strut bore extends through the third clutch plate, is partially positioned in the second strut cavity and is displaced in the strut bore during rotation of the second clutch plate.

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