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    Engine speed assist torque converter clutch control
    3.
    发明授权
    Engine speed assist torque converter clutch control 有权
    发动机速度辅助变矩器离合器控制

    公开(公告)号：US08600631B2

    公开(公告)日：2013-12-03

    申请号：US13112094

    申请日：2011-05-20

    Applicant: Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Xu Chen ,  Paul G Otanez ,  Xuefeng Tim Tao ,  Farzad Samie

    Inventor： Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Xu Chen ,  Paul G Otanez ,  Xuefeng Tim Tao ,  Farzad Samie

    IPC: G06F7/00 ,  B60W10/02

    CPC classification number: F16H61/143 ,  F16H2059/366

    Abstract: A method for controlling actuation of a torque converter clutch includes monitoring a transmission input speed, comparing the monitored transmission input speed to a threshold input speed, and, when the transmission input speed is less than the threshold input speed, controlling an engine speed based upon a desired minimum engine speed. Controlling the engine speed based upon the desired minimum engine speed includes monitoring a minimum engine speed critical parameter, determining the desired minimum engine speed based upon the minimum engine speed critical parameter, comparing the engine speed to the desired minimum engine speed, and controlling actuation of the clutch device based upon a result of the comparing the engine speed to the desired minimum engine speed.

    Abstract translation: 一种用于控制变矩器离合器的致动的方法包括监测变速器输入速度，将所监测的变速器输入速度与阈值输入速度进行比较，并且当变速器输入速度小于阈值输入速度时，基于 期望的最小发动机转速。 基于期望的最小发动机速度控制发动机速度包括监测最小发动机速度关键参数，基于最小发动机速度关键参数确定所需的最小发动机转速，将发动机转速与期望的最小发动机转速进行比较，以及控制致动 该离合器装置基于将发动机转速与期望的最小发动机转速进行比较的结果。

    METHOD FOR DETERMINING INITIAL TEMPERATURES IN DRY DUAL CLUTCH TRANSMISSIONS
    4.
    发明申请
    METHOD FOR DETERMINING INITIAL TEMPERATURES IN DRY DUAL CLUTCH TRANSMISSIONS 有权
    用于确定干式双离合器传动中的初始温度的方法

    公开(公告)号：US20120290181A1

    公开(公告)日：2012-11-15

    申请号：US13104097

    申请日：2011-05-10

    Applicant: Kumaraswamy V. Hebbale ,  Farzad Samie

    Inventor： Kumaraswamy V. Hebbale ,  Farzad Samie

    IPC: G06F19/00

    CPC classification number: F16H59/72 ,  F16D48/06 ,  F16D2021/0615 ,  F16D2500/1086 ,  F16D2500/30405 ,  F16D2500/3111 ,  F16D2500/3122 ,  F16D2500/3166 ,  F16H61/688 ,  F16H2059/725

    Abstract: A method for determining initial or starting temperatures for a dry dual clutch mechanism at vehicle start-up includes as determining a time lapse from shut-down to start-up. The method determines a housing air start temperature of the housing air within a bell housing case of the dry dual clutch mechanism at vehicle start-up, reads a first clutch stop temperature of a first clutch at vehicle shut-down, reads a housing air stop temperature of the housing air at vehicle shut-down, and determines a heat transfer coefficient between the first clutch and the housing air. The method includes determining a first clutch start temperature from, at least: the heat transfer coefficient between the first clutch and the housing air; a temperature differential between the first clutch stop temperature and the housing air stop temperature; and the housing air start temperature.

    Abstract translation: 用于在车辆启动时确定干式双离合器机构的初始或起始温度的方法包括确定从关闭到启动的时间流逝。 该方法在车辆起动时确定干式双离合器机构的钟形壳体内的壳体空气的壳体空气开始温度，在车辆关闭时读取第一离合器的第一离合器停止温度，读取壳体空气停止 车辆关闭时的壳体空气的温度，并且确定第一离合器和壳体空气之间的传热系数。 该方法至少包括：第一离合器和外壳空气之间的传热系数，确定第一离合器开始温度; 第一离合器停止温度与壳体空气停止温度之间的温度差; 和外壳空气启动温度。

    Dual-piston normally-engaged clutch
    5.
    发明授权
    Dual-piston normally-engaged clutch 有权
    双活塞常啮合离合器

    公开(公告)号：US08210979B2

    公开(公告)日：2012-07-03

    申请号：US12754048

    申请日：2010-04-05

    Applicant: Gary L. Jones ,  Farzad Samie ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Andrew L. Bartos ,  John I. Manole

    Inventor： Gary L. Jones ,  Farzad Samie ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Andrew L. Bartos ,  John I. Manole

    IPC: F16H31/00 ,  F16D19/00

    CPC classification number: F16D25/10 ,  Y10T477/638

    Abstract: A normally-engaged clutch is provided having a friction-element with a first side and an opposing second side, a first plate configured for pressing against the friction-element on the first side, and a second plate configured for pressing against the friction-element on the second side. The clutch also includes a biasing device configured to apply a first force to the second plate for pressing the second plate against the friction-element to engage the clutch. Additionally, the clutch includes an apply piston for applying a second force to the first plate, and a release piston for applying a third force to the second plate. The clutch is disengaged when the second plate is pushed away from the friction-element by the third force in the absence of the second force, and is engaged when the first plate is pressed against the friction-element by the second force.

    Abstract translation: 提供了一种常啮合离合器，其具有具有第一侧和相对的第二侧的摩擦元件，构造成用于在第一侧上压靠摩擦元件的第一板和构造成用于将摩擦元件 在第二边 离合器还包括偏置装置，其构造成向第二板施加第一力以将第二板压靠在摩擦元件上以接合离合器。 此外，离合器包括用于向第一板施加第二力的施加活塞和用于向第二板施加第三力的释放活塞。 当第二板在没有第二力的情况下通过第三力将第二板推离摩擦元件时，离合器分离，并且当第一板通过第二力压靠在摩擦元件上时，离合器被接合。

    DUAL-PISTON NORMALLY-ENGAGED CLUTCH
    6.
    发明申请
    DUAL-PISTON NORMALLY-ENGAGED CLUTCH 有权
    双活塞正式离合器

    公开(公告)号：US20110245035A1

    公开(公告)日：2011-10-06

    申请号：US12754048

    申请日：2010-04-05

    Applicant: Gary L. Jones ,  Farzad Samie ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Andrew L. Bartos ,  John I. Manole

    Inventor： Gary L. Jones ,  Farzad Samie ,  Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Andrew L. Bartos ,  John I. Manole

    IPC: B60W10/00 ,  F16D19/00

    CPC classification number: F16D25/10 ,  Y10T477/638

    Abstract: A normally-engaged clutch is provided having a friction-element with a first side and an opposing second side, a first plate configured for pressing against the friction-element on the first side, and a second plate configured for pressing against the friction-element on the second side. The clutch also includes a biasing device configured to apply a first force to the second plate for pressing the second plate against the friction-element to engage the clutch. Additionally, the clutch includes an apply piston for applying a second force to the first plate, and a release piston for applying a third force to the second plate. The clutch is disengaged when the second plate is pushed away from the friction-element by the third force in the absence of the second force, and is engaged when the first plate is pressed against the friction-element by the second force.

    Abstract translation: 提供了一种常啮合离合器，其具有具有第一侧和相对的第二侧的摩擦元件，构造成用于在第一侧上压靠摩擦元件的第一板和构造成用于将摩擦元件 在第二边 离合器还包括偏置装置，其构造成向第二板施加第一力以将第二板压靠在摩擦元件上以接合离合器。 此外，离合器包括用于向第一板施加第二力的施加活塞和用于向第二板施加第三力的释放活塞。 当第二板在没有第二力的情况下通过第三力将第二板推离摩擦元件时，离合器分离，并且当第一板通过第二力压靠在摩擦元件上时，离合器被接合。

    Driver intention detection algorithm for transmission control
    7.
    发明授权
    Driver intention detection algorithm for transmission control 有权
    驱动意图检测算法用于传输控制

    公开(公告)号：US07976430B2

    公开(公告)日：2011-07-12

    申请号：US12022712

    申请日：2008-01-30

    Applicant: Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Paul G. Otanez ,  Daekyun Kim

    Inventor： Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Paul G. Otanez ,  Daekyun Kim

    IPC: F16H61/58

    CPC classification number: F16H61/143 ,  F16H59/141 ,  F16H59/18 ,  F16H59/20 ,  F16H2059/183 ,  Y10T477/635 ,  Y10T477/63525 ,  Y10T477/641 ,  Y10T477/6425

    Abstract: A system and method for providing TCC control and/or transmission gear shift control by considering the rate of change of the accelerator pedal or throttle position. The method determines whether the rate of change of the throttle position exceeds a predetermined positive rate of change or a predetermined negative rate of change and, if so, releases the TCC to provide TCC control. Alternatively, or additionally, the method can provide a transmission gear down-shift or up-shift depending on which direction the throttle position is changing. Once the TCC and/or gear shift control has been initiated, the method can start a timer and then return to normal TCC and/or gear shift control after the timer has expired. The TCC and/or gear shift control can also return to normal if the rate of change of the throttle position indicates that the throttle is being returned to its previous position.

    Abstract translation: 通过考虑加速器踏板或节气门位置的变化率来提供TCC控制和/或变速换档控制的系统和方法。 该方法确定节气门位置的变化率是否超过预定的正变化率或预定的负变化率，如果是，则释放TCC以提供TCC控制。 或者或另外，该方法可以根据节气门位置正在改变的哪个方向来提供传动齿轮下移或上移。 一旦启动了TCC和/或变速控制，该方法可以启动定时器，然后在定时器到期后返回正常的TCC和/或换档控制。 如果节气门位置的变化率指示节气门正在返回到其先前位置，则TCC和/或变速控制也可以恢复正常。

    Method of controlling clutch slip during gear shifts of an automatic transmission
    9.
    发明授权
    Method of controlling clutch slip during gear shifts of an automatic transmission 有权
    自动变速器变速时控制离合器滑差的方法

    公开(公告)号：US07349785B2

    公开(公告)日：2008-03-25

    申请号：US10813898

    申请日：2004-03-31

    Applicant: Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Chi-Kuan Kao ,  Farzad Samie ,  Richard W. Carlson

    Inventor： Chunhao J. Lee ,  Kumaraswamy V. Hebbale ,  Chi-Kuan Kao ,  Farzad Samie ,  Richard W. Carlson

    IPC: G06F19/00 ,  B60W10/02

    CPC classification number: F16H61/061 ,  F16H2059/465 ,  F16H2061/0075 ,  F16H2061/0462 ,  Y10T477/60 ,  Y10T477/6203 ,  Y10T477/638 ,  Y10T477/6433

    Abstract: A method is provided for controlling engagement of a clutch which carries torque before, during and after a shifting event in a transmission which is connected to a throttle-controlled engine. The method includes providing a feed forward input command which increases as the engine torque increases and decreases as the engine torque decreases. A feed-back input command is provided as a function of the error between measured clutch slip and a reference slip profile. The feed-forward input command and feed-back input command are summed to provide a clutch control command for controlling engagement of the clutch before, during and after the shifting event to allow a desired amount of clutch slip to damp excitation of the transmission.

    Abstract translation: 提供了一种用于控制在连接到节气门控制的发动机的变速器中在变速事件之前，期间和之后承受扭矩的离合器的接合的方法。 该方法包括提供当发动机扭矩减小时发动机扭矩增加而减小的前馈输入命令。 提供反馈输入命令作为测量的离合器滑差与基准滑差分布之间的误差的函数。 前馈输入指令和反馈输入命令相加，以提供离合器控制命令，用于在变速事件之前，之中和之后控制离合器的接合，以允许期望量的离合器打滑以阻尼变速器的励磁。

    Five speed power transmission with two simple planetary gear sets
    10.
    发明授权
    Five speed power transmission with two simple planetary gear sets 有权
    五速动力传动与两个简单的行星齿轮组

    公开(公告)号：US06398690B1

    公开(公告)日：2002-06-04

    申请号：US09702915

    申请日：2000-10-30

    Applicant: Kumaraswamy V. Hebbale ,  Sekhar Raghavan ,  Patrick Benedict Usoro

    Inventor： Kumaraswamy V. Hebbale ,  Sekhar Raghavan ,  Patrick Benedict Usoro

    IPC: F16H344

    CPC classification number: F16H3/66 ,  F16H2200/0047 ,  F16H2200/2007 ,  F16H2200/2097

    Abstract: A powertrain has an engine, torque converter, and planetary transmission that includes an input shaft, an output shaft, two simple planetary gear sets, rive rotating torque transmitting mechanisms (clutches) and one stationary torque transmitting mechanism (brake). The planetary gear sets are interconnected with both a permanent interconnection and a selective interconnection. A first member of a first of the planetary gear sets is continuously connected with the output shaft and a first member of the second planetary gear set is continuously connected with a stationary portion of the transmission. Two of the clutches are operable to selectively connect the input shaft with the second and third members of the first planetary gear set, respectively. A third of the clutches is connectable between the second member of the second planetary gear set and the output shaft. The brake is selectively connectable between the second member of the first planetary gear set and the stationary portion. The third members of the planetary gear sets are continuously interconnected for common rotation. The second members of the planetary gear sets are selectively interconnectable by a fourth of the clutches. The second and third members of the second planetary gear set are selectively interconnectable by a fifth of the clutches. The clutches and brakes are selectively engaged in pairs to provide five forward drive ratios and one reverse ratio and interchanged to provide single transition shifts between the lowest four of the forward drive ratios and a double transition shift between the highest two of the forward ratios.

    Abstract translation: 动力传动系具有发动机，变矩器和行星传动装置，其包括输入轴，输出轴，两个简单行星齿轮组，转动转矩传递机构（离合器）和一个固定扭矩传递机构（制动器）。 行星齿轮组与永久互连和选择性互连两者互连。 第一行星齿轮组的第一构件与输出轴连续地连接，第二行星齿轮组的第一构件与变速器的固定部分连续地连接。 两个离合器可操作以分别选择性地将输入轴与第一行星齿轮组的第二和第三构件连接。 第三离合器可连接在第二行星齿轮组的第二构件和输出轴之间。 制动器可选地可连接在第一行星齿轮组的第二构件和固定部分之间。 行星齿轮组的第三构件连续地互相连接用于共同旋转。 行星齿轮组的第二构件可由第四离合器选择性地互连。 第二行星齿轮组的第二和第三构件可由五分之一的离合器选择性地相互连接。 离合器和制动器成对选择性地接合以提供五个正向传动比和一个反向比，并且互换以在前进驱动比中的最低四个之间提供单个过渡位移，并且在两个前进比中的最高两个之间进行双重转变。

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