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    Method of controlling engine torque during launch from neutral idle operation
    1.
    发明授权
    Method of controlling engine torque during launch from neutral idle operation 有权
    从空载怠速运转中控制发动机扭矩的方法

    公开(公告)号：US06440041B1

    公开(公告)日：2002-08-27

    申请号：US09779816

    申请日：2001-02-08

    申请人： Bradley Dean Riedle ,  Jeffrey Allen Doering ,  Ronald Thomas Cowan

    发明人： Bradley Dean Riedle ,  Jeffrey Allen Doering ,  Ronald Thomas Cowan

    IPC分类号： B60K4104

    CPC分类号： F02D41/10 ,  B60W10/04 ,  B60W10/06 ,  B60W10/11 ,  B60W10/115 ,  B60W30/1819 ,  B60W30/186 ,  B60W2710/0666 ,  F02D2200/1012 ,  F02D2250/18 ,  F02D2250/21 ,  F02D2250/26 ,  F16H61/686 ,  F16H63/50 ,  F16H2200/0047 ,  Y10T477/675

    摘要： A method of controlling engine torque in a motor vehicle having an internal combustion engine and multi-ratio transmission when launched from a neutral idle rest condition. At neutral idle, the transmission is controlled such that the input and output members are decoupled. During vehicle launch, two different strategies may be employed to control engine torque. One preferred method is to determine an engine brake torque limit as a function of time. Another preferred method to determine the engine brake torque limit is to estimate the torque capacity of the forward clutch at any given time using a mathematical model and a calibrated offset of turbine torque. Irrespective of the particular method used, the determined engine brake torque limit is compared to the corresponding engine torque amount that is requested by the vehicle operator. As a result, the actual engine torque output is optimized at all times to provide approximately the maximum amount of requested torque without exceeding the capacity of the transmission's forward clutch.

    摘要翻译： 一种当从中立空转静止状态发射时，具有内燃机和多比率变速器的机动车辆中的发动机转矩的控制方法。 在中性空闲时，传输被控制使得输入和输出构件被解耦。 在车辆发射期间，可以采用两种不同的策略来控制发动机转矩。 一种优选的方法是确定作为时间的函数的发动机制动转矩极限。 确定发动机制动转矩极限的另一个优选方法是使用数学模型和涡轮扭矩的校准偏移来估计在任何给定时间的前进离合器的扭矩容量。 不考虑使用的特定方法，将确定的发动机制动转矩极限与车辆操作者要求的对应的发动机转矩量进行比较。 因此，实际的发动机扭矩输出始终被优化，以提供大约最大量的要求扭矩，而不超过变速器前进离合器的容量。

    Method of controlling engine idle speed during launch from neutral idle operation
    2.
    发明授权
    Method of controlling engine idle speed during launch from neutral idle operation 有权
    在空载怠速运行期间控制发动机怠速的方法

    公开(公告)号：US06634984B1

    公开(公告)日：2003-10-21

    申请号：US09779815

    申请日：2001-02-08

    申请人： Jeffrey Allen Doering ,  Bradley Dean Riedle ,  Ronald Thomas Cowan

    发明人： Jeffrey Allen Doering ,  Bradley Dean Riedle ,  Ronald Thomas Cowan

    IPC分类号： B60K4104

    CPC分类号： F02D41/083 ,  Y10T477/675 ,  Y10T477/79

    摘要： A method of controlling engine idle speed in a motor vehicle having an internal combustion engine and multi-ratio transmission when launched from a neutral idle rest condition. At neutral idle, the transmission is controlled such that the input and output members are decoupled. During vehicle launch from neutral idle operation, two different strategies may be employed to control engine idle speed. One preferred method is to determine a feedforward or predicted torque converter load as a function of time. Another preferred method is to determine the feedforward or predicted torque converter load by comparing a maximum engine brake torque and the torque capacity of the forward clutch at any given time. Irrespective of the particular method used, other engine torque loads are added to the feedforward or predicted torque converter load to determine the engine output torque required to control engine idle speed and provide a smooth between transmission operating modes throughout the launch period.

    摘要翻译： 一种在从中立空转静止状态发射时具有内燃机和多比率变速器的机动车辆中的发动机怠速控制的方法。 在中性空闲时，传输被控制使得输入和输出构件被解耦。 在从空载怠速运行的车辆发射期间，可以采用两种不同的策略来控制发动机怠速。 一种优选的方法是确定作为时间的函数的前馈或预测的变矩器负载。 另一个优选的方法是通过在任何给定时间比较最大发动机制动转矩和前进离合器的扭矩容量来确定前馈或预测的变矩器负载。 不管使用的具体方法如何，其他发动机转矩负载都被添加到前馈或预测变矩器负载中，以确定控制发动机空转速度所需的发动机输出转矩，并在整个启动期间提供传动操作模式之间的平滑。

    Control strategy and method for independently controlling friction element actuators for an automatic transmission
    5.
    发明授权
    Control strategy and method for independently controlling friction element actuators for an automatic transmission 有权
    用于独立控制自动变速器摩擦元件执行器的控制策略和方法

    公开(公告)号：US06385520B1

    公开(公告)日：2002-05-07

    申请号：US09636729

    申请日：2000-08-10

    申请人： Pramod K. Jain ,  Howard Cecil Kuhn ,  Ronald Thomas Cowan ,  Bradley Dean Riedle ,  Chuanchi Steve Tang ,  James M. Merner

    发明人： Pramod K. Jain ,  Howard Cecil Kuhn ,  Ronald Thomas Cowan ,  Bradley Dean Riedle ,  Chuanchi Steve Tang ,  James M. Merner

    IPC分类号： G06F1700

    CPC分类号： F16H61/061 ,  F16H2059/147 ,  F16H2059/702 ,  F16H2061/0078 ,  F16H2306/24

    摘要： A control strategy and method for controlling application and release of friction elements in an automatic transmission to effect gear ratio changes as one friction element is release and another friction element is applied during ratio changes. The transmission has an electronic controller and multiple solenoid regulator valves hydraulically coupled directly to pressure-operated friction elements. Powertrain variables are obtained and processed to calculate gear ratio control parameters derived from desired line pressure for a pressure control valve circuit that communicates with the friction elements. The desired gear ratio is determined for each given set of powertrain variables. Upshifts and downshifts are obtained by releasing one friction element in synchronism with an application of the other friction element, whereby a direct friction element to friction element torque transition is achieved with minimal inertia torque disturbances.

    摘要翻译： 一种用于控制自动变速器中的摩擦元件的应用和释放的控制策略和方法，以在一个摩擦元件释放时施加齿轮比变化，并且在比率变化期间施加另一摩擦元件。 变速器具有电子控制器和多个电磁调节阀，其液压耦合到压力操作的摩擦元件。 获得并处理动力系变量，以计算从与摩擦元件连通的压力控制阀回路的期望管路压力导出的传动比控制参数。 为每组给定的动力系变量确定所需的传动比。 通过与施加另一个摩擦元件同步地释放一个摩擦元件来获得升档和降档，由此以最小的惯性转矩扰动实现摩擦元件扭矩转换的直接摩擦元件。

    Centrifugally balanced, pressure-operated clutch assembly
    7.
    发明授权
    Centrifugally balanced, pressure-operated clutch assembly 失效
    离心式平衡式压力离合器总成

    公开(公告)号：US06382382B1

    公开(公告)日：2002-05-07

    申请号：US09696124

    申请日：2000-10-25

    申请人： Eli Avny ,  Steven Gerald Thomas ,  Ronald Thomas Cowan

    发明人： Eli Avny ,  Steven Gerald Thomas ,  Ronald Thomas Cowan

    IPC分类号： F16D2510

    CPC分类号： F16D25/0638 ,  F16D21/06 ,  F16D25/12

    摘要： A rotary clutch assembly for a geared power transmission mechanism comprising a friction disc clutch with driving and driven friction clutch plates, the driving plates being connected to a torque input element of the clutch assembly and the driven plates being connected to a torque output element of the clutch assembly, the clutch assembly providing a torque flow path to multiple-ratio gearing, a pressure actuator comprising first and second annular cylinder members and a movable piston member located in one of the cylinder members and cooperating with each member to define a pressure release chamber and a pressure apply chamber, the second clutch member being held axially fast on a torque input shaft for the transmission, the geometry of the cylinder members and the movable piston being sized to effect a centrifugal balance so that the clutch gain is essentially determined by the clutch commanded pressure to produce a relatively speed-independent net clutch-apply force, regardless of clutch cylinder speed.

    摘要翻译： 一种用于齿轮传动机构的旋转离合器组件，其包括具有驱动和从动摩擦离合器片的摩擦盘离合器，所述驱动板连接到离合器组件的扭矩输入元件，并且从动板连接到 离合器组件，离合器组件提供到多比率齿轮传动的扭矩流动路径，包括第一和第二环形气缸构件的压力致动器和位于气缸构件中的一个中的可移动活塞构件，并与每个构件配合以限定压力释放室 和压力施加室，第二离合器构件轴向地快速地保持在用于变速器的扭矩输入轴上，气缸构件和可移动活塞的几何尺寸被设计成实现离心平衡，使得离合器增益基本上由 离合器指令压力产生相对速度独立的净离合器施加力，不管 离合器缸速度。