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    SYSTEM AND METHOD OF EXECUTING A DOUBLE TRANSITION SHIFT IN A TRANSMISSION WITH TRANSITIONING CLUTCH HAVING OPPOSITE CLUTCH SLIP AND TORQUE CARRYING DIRECTIONS
    3.
    发明申请
    SYSTEM AND METHOD OF EXECUTING A DOUBLE TRANSITION SHIFT IN A TRANSMISSION WITH TRANSITIONING CLUTCH HAVING OPPOSITE CLUTCH SLIP AND TORQUE CARRYING DIRECTIONS 有权
    在具有移动离合器和扭矩方向的过渡离合器的传动中执行双向过渡转换的系统和方法

    公开(公告)号：US20140277977A1

    公开(公告)日：2014-09-18

    申请号：US13794915

    申请日：2013-03-12

    申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

    发明人： Vijay A. Neelakantan ,  Nathaniel E. Wilke

    IPC分类号： F16D48/06

    CPC分类号： F16D48/06 ,  F16D2500/30406 ,  F16D2500/3165 ,  F16D2500/50287 ,  F16D2500/50661 ,  F16D2500/7044

    摘要： A method of executing a double transition shift in a transmission includes determining via a controller that one of four clutches involved in the shift has a clutch slip direction relative to input member rotation direction in one of the current gear and the commanded gear and an opposite clutch torque direction relative to input member torque direction in the other of the current gear and the commanded gear. The controller then calculates clutch torques for at least some of the offgoing clutches and at least some of the oncoming clutches, and controls torque at the offgoing clutches and the oncoming clutches during the shift according to the calculated clutch torques to ensure that the clutch with the opposite slip and torque directions does not provide reaction torque during the shift unless clutch slip across said one of the four clutches is zero or in the clutch torque direction.

    摘要翻译： 在变速器中执行双转变的方法包括：通过控制器确定在当前齿轮和指令齿轮中的一个中相对于变速中的四个离合器中的一个相对于输入构件旋转方向具有离合器滑动方向，以及相反的离合器 在当前齿轮和指令齿轮中的另一个中相对于输入构件扭矩方向的转矩方向。 控制器然后根据计算出的离合器转矩来计算至少一些离合器和至少一些迎面而来的离合器的离合器扭矩，并根据所计算的离合器转矩控制离合器和迎面而来的离合器的转矩，以确保离合器与 相反的滑移和扭矩方向在换档期间不提供反作用力矩，除非在四个离合器中的所述一个离合器上的离合器滑动为零或在离合器扭矩方向上。

    PROCEDURE FOR ESTIMATING THE TORQUE TRANSMITTED BY A FRICTION CLUTCH CONTROLLED BY AN ACTUATOR
    5.
    发明申请
    PROCEDURE FOR ESTIMATING THE TORQUE TRANSMITTED BY A FRICTION CLUTCH CONTROLLED BY AN ACTUATOR 有权
    用于估计由执行器控制的摩擦离合器传递的扭矩的程序

    公开(公告)号：US20090292510A1

    公开(公告)日：2009-11-26

    申请号：US12422610

    申请日：2009-04-13

    申请人： Emanuel CORIGLIANO ,  Giancarlo OSELLA ,  Attilio PORTA

    发明人： Emanuel CORIGLIANO ,  Giancarlo OSELLA ,  Attilio PORTA

    IPC分类号： G06F7/60 ,  G06F17/10

    CPC分类号： G01M15/046 ,  F16D48/06 ,  F16D2500/30421 ,  F16D2500/3067 ,  F16D2500/3165 ,  F16D2500/708

    摘要： The procedure estimates the torque transmitted by a friction clutch coupled to the shaft of a motor vehicle engine and controlled by means of an actuator, the procedure comprising the operations of: measuring or otherwise determining the angular speed of the engine shaft and the torque developed by this shaft; calculating the difference or error between the measured value of the engine shaft's angular speed and an estimated value of the said angular speed; and, using an electronic controller, determining an estimated value of the torque transmitted by the clutch, corresponding to the calculated value of the said difference or error in the engine shaft angular speed; the estimated value of the torque transmitted by the clutch being used, along with the value measured or otherwise determined of the torque developed by the engine shaft, to obtain the said estimated value of the angular speed of the engine shaft on the basis of a predetermined mathematical model.

    摘要翻译： 该过程估计由耦合到机动车辆发动机的轴并通过致动器控制的摩擦离合器传递的扭矩，该过程包括以下操作：测量或以其它方式确定发动机轴的角速度和由 这个轴 计算发动机轴的角速度的测量值与所述角速度的估计值之间的差或误差; 并且使用电子控制器，对应于所述发动机轴角速度的所述差异或误差的计算值，确定由所述离合器传递的扭矩的估计值; 由所使用的离合器传递的扭矩的估计值以及由发动机轴产生的扭矩测量或以其他方式确定的值，以基于预定的速度获得发动机轴的角速度的所述估计值 数学模型。

    Method for estimating clutch engagement parameters in a strategy for clutch management in a vehicle powertrain
    6.
    发明申请
    Method for estimating clutch engagement parameters in a strategy for clutch management in a vehicle powertrain 失效
    用于在车辆动力总成中的离合器管理策略中估计离合器接合参数的方法

    公开(公告)号：US20080147285A1

    公开(公告)日：2008-06-19

    申请号：US12070942

    申请日：2008-02-22

    申请人： Sameer A. Joshi ,  Ananthakrishnan Surianarayanan ,  Chia-Hsiang Liu

    发明人： Sameer A. Joshi ,  Ananthakrishnan Surianarayanan ,  Chia-Hsiang Liu

    IPC分类号： F16D66/00 ,  G06F17/11

    CPC分类号： F16D48/06 ,  F16D2500/3165 ,  F16D2500/70264 ,  F16D2500/70605 ,  F16D2500/7082 ,  Y10T477/70

    摘要： A method is disclosed for estimating clutch engagement characteristics of a friction clutch system in a vehicle powertrain. A dynamic model of the system is used under conditions that cause clutch slipping. Algebraic equations defining a functional relationship between clutch torque and an engagement angle have characteristic parameters that are estimated using a non-linear least squares technique. A non-linear least squares technique iteratively minimizes the difference between a measured output clutch disk speed and an output clutch disk speed from the system dynamic model for the same inputs until a small insignificant error is reached. Parameter estimates are used to compile an estimated clutch engagement characteristic.

    摘要翻译： 公开了一种用于估计车辆动力系中的摩擦离合器系统的离合器接合特性的方法。 在导致离合器滑动的条件下使用系统的动态模型。 定义离合器转矩和接合角度之间的函数关系的代数方程式具有使用非线性最小二乘法估计的特征参数。 非线性最小二乘法迭代地将来自相同输入的系统动态模型的测量输出离合器盘速度和输出离合器盘速度之间的差最小化，直到达到小的无意义的错误。 参数估计用于编译估计的离合器接合特性。