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    Closed-loop clutch control using a filtered piston position signal
    3.
    发明授权
    Closed-loop clutch control using a filtered piston position signal 有权
    使用过滤的活塞位置信号进行闭环离合器控制

    公开(公告)号：US08606476B2

    公开(公告)日：2013-12-10

    申请号：US13352701

    申请日：2012-01-18

    Applicant: Matthew D. Whitton ,  Robert L. Williams ,  Steven P. Moorman ,  Cheol W. Kim

    Inventor： Matthew D. Whitton ,  Robert L. Williams ,  Steven P. Moorman ,  Cheol W. Kim

    IPC: F16D15/00

    CPC classification number: F16D48/066 ,  F16D2021/0669 ,  F16D2500/3026 ,  F16D2500/50287 ,  F16D2500/7041 ,  F16D2500/70626 ,  F16D2500/70631 ,  F16D2500/70668

    Abstract: A vehicle includes an engine, transmission, and controller. The transmission includes a clutch pack, a clutch piston, and a position sensor. The sensor measures a changing magnetic field with respect to the piston, and encodes the measured magnetic field as a raw position signal. The controller receives the raw position signal and processes the raw position signal through a signal processing module to generate a filtered signal attenuating signal noise in the position signal. The controller determines a commanded position of the piston, and calculates separate proportional (P), derivative (D), and integral (I) control terms using the commanded position and filtered position signal. The controller also calculates a feed-forward control term using the commanded position, and a required flow rate for actuating the clutch pack as a function of the PID terms and the feed-forward commanded position term. The controller actuates the clutch pack using the commanded flow rate.

    Abstract translation: 车辆包括发动机，变速器和控制器。 变速器包括离合器组件，离合器活塞和位置传感器。 传感器测量相对于活塞的变化的磁场，并且将测量的磁场编码为原始位置信号。 控制器接收原始位置信号，并通过信号处理模块对原始位置信号进行处理，以产生在位置信号中衰减信号噪声​​的滤波信号。 控制器确定活塞的指令位置，并使用指令位置和滤波位置信号计算单独的比例（P），微分（D）和积分（I）控制项。 控制器还使用命令位置计算前馈控制项，以及根据PID项和前馈命令位置项来驱动离合器组的所需流量。 控制器使用指令的流量驱动离合器组件。

    CLOSED-LOOP CLUTCH CONTROL USING A FILTERED PISTON POSITION SIGNAL
    4.
    发明申请
    CLOSED-LOOP CLUTCH CONTROL USING A FILTERED PISTON POSITION SIGNAL 有权
    使用过滤的活塞位置信号进行闭环控制

    公开(公告)号：US20130184951A1

    公开(公告)日：2013-07-18

    申请号：US13352701

    申请日：2012-01-18

    Applicant: Matthew D. Whitton ,  Robert L. Williams ,  Steven P. Moorman ,  Cheol W. Kim

    Inventor： Matthew D. Whitton ,  Robert L. Williams ,  Steven P. Moorman ,  Cheol W. Kim

    IPC: F16D48/02 ,  F16D25/06

    CPC classification number: F16D48/066 ,  F16D2021/0669 ,  F16D2500/3026 ,  F16D2500/50287 ,  F16D2500/7041 ,  F16D2500/70626 ,  F16D2500/70631 ,  F16D2500/70668

    Abstract: A vehicle includes an engine, transmission, and controller. The transmission includes a clutch pack, a clutch piston, and a position sensor. The sensor measures a changing magnetic field with respect to the piston, and encodes the measured magnetic field as a raw position signal. The controller receives the raw position signal and processes the raw position signal through a signal processing module to generate a filtered signal attenuating signal noise in the position signal. The controller determines a commanded position of the piston, and calculates separate proportional (P), derivative (D), and integral (I) control terms using the commanded position and filtered position signal. The controller also calculates a feed-forward control term using the commanded position, and a required flow rate for actuating the clutch pack as a function of the PID terms and the feed-forward commanded position term. The controller actuates the clutch pack using the commanded flow rate.

    Abstract translation: 车辆包括发动机，变速器和控制器。 变速器包括离合器组件，离合器活塞和位置传感器。 传感器测量相对于活塞的变化的磁场，并且将测量的磁场编码为原始位置信号。 控制器接收原始位置信号，并通过信号处理模块对原始位置信号进行处理，以产生在位置信号中衰减信号噪声​​的滤波信号。 控制器确定活塞的指令位置，并使用指令位置和滤波位置信号计算单独的比例（P），微分（D）和积分（I）控制项。 控制器还使用命令位置计算前馈控制项，以及根据PID项和前馈命令位置项来驱动离合器组的所需流量。 控制器使用指令的流量驱动离合器组件。

    SYSTEM AND METHOD FOR ADAPTIVE TRANSMISSION CLUTCH TORQUE CONTROL
    5.
    发明申请
    SYSTEM AND METHOD FOR ADAPTIVE TRANSMISSION CLUTCH TORQUE CONTROL 有权
    用于自适应传输离合器扭矩控制的系统和方法

    公开(公告)号：US20130018556A1

    公开(公告)日：2013-01-17

    申请号：US13181897

    申请日：2011-07-13

    Applicant: Robert L. Williams ,  Matthew D. Whitton ,  Kurt Mitts ,  Daniel Deras

    Inventor： Robert L. Williams ,  Matthew D. Whitton ,  Kurt Mitts ,  Daniel Deras

    IPC: F16H61/00

    CPC classification number: F16D48/06 ,  F16D2500/1086 ,  F16D2500/50236 ,  F16D2500/50251 ,  F16D2500/70264 ,  F16D2500/70605 ,  F16D2500/70615 ,  F16H61/688 ,  F16H2059/465

    Abstract: A control system for a transmission includes a memory module, a position module, an error module, an integral module, and an adjustment module. The memory stores a control value as a function of clutch torque. The position module controls a position of a clutch based on the control value. The error module periodically determines a slip speed error based on a difference between a target slip speed and an estimated slip speed of the clutch. The integral module periodically determines an integral of the slip speed error. The adjustment module adjusts the control value based on the integral. A method for controlling a transmission is also provided.

    Abstract translation: 用于变速器的控制系统包括存储器模块，位置模块，错误模块，集成模块和调整模块。 存储器存储作为离合器扭矩的函数的控制值。 位置模块基于控制值来控制离合器的位置。 误差模块基于目标滑移速度和离合器的估计滑移速度之间的差异周期性地确定滑差速度误差。 积分模块周期性地确定滑差速度误差的积分。 调整模块根据积分调节控制值。 还提供了一种用于控制传输的方法。

    Method and apparatus for adaptive control of power-on skip through neutral downshifts
    6.
    发明授权
    Method and apparatus for adaptive control of power-on skip through neutral downshifts 有权
    用于自适应控制上电的方法和装置跳过中性降档

    公开(公告)号：US07212898B2

    公开(公告)日：2007-05-01

    申请号：US11054679

    申请日：2005-02-09

    Applicant: Matthew D. Whitton ,  Robert L. Williams

    Inventor： Matthew D. Whitton ,  Robert L. Williams

    IPC: F16H61/26 ,  B60K23/00

    CPC classification number: F16H61/061 ,  B60W10/06 ,  B60W10/11 ,  B60W30/19 ,  F16H63/502 ,  F16H2061/0087 ,  F16H2061/0477 ,  Y10T74/19251 ,  Y10T477/79

    Abstract: The present invention provides a method and apparatus for mathematically calculating an optimal transmission input torque value for the inertia phase and the torque phase of a ratio change. Engine output is then altered by an amount necessary to change the actual value of the transmission input torque to the calculated optimal value of transmission input torque. The timing of the clutch elements during the power-on skip through neutral downshift is established by calculating delay periods for the off-going and on-coming clutches such that a predetermined desired shift time is met. The power-on skip through neutral downshift is thereafter adaptively controlled so that aberrations are diagnosed and corrected during subsequent downshifts. The invention is carried out by monitoring engine and/or transmission characteristics including input speed, output speed and shift duration during a downshift and identifying departures from acceptable patterns. Each type of departure calls for a particular remedy, and a suitable adjustment is calculated thereafter implemented by changing one or more initial conditions for the next shift of the same type.

    Abstract translation: 本发明提供一种用于数学计算比率变化的惯性阶段和转矩相位的最佳变速器输入转矩值的方法和装置。 然后，将发动机输出改变为将变速器输入转矩的实际值改变为所计算的变速器输入转矩的最佳值所需的量。 通过计算离合器和前进离合器的延迟时间来建立在上电跳闸通过中性降档期间的离合器元件的定时，使得满足预定的期望换档时间。 此后自适应地控制通过中性降档的上电跳闸，使得在随后的降档期间诊断和校正像差。 本发明通过监视发动机和/或传动特性来实现，包括降档期间的输入速度，输出速度和换档持续时间以及识别离开可接受模式。 每种类型的出发都要求具体的补救措施，并且之后通过改变相同类型的下一个班次的一个或多个初始条件来实施适当的调整。

    Control system and method for adaptive control of transmission fluid operating pressures
    8.
    发明授权
    Control system and method for adaptive control of transmission fluid operating pressures 有权
    控制系统和方法，用于自适应控制传动液运行压力

    公开(公告)号：US08548699B2

    公开(公告)日：2013-10-01

    申请号：US12787022

    申请日：2010-05-25

    Applicant: David C. Webert ,  Todd R. Berger ,  Timothy R Stockdale ,  Matthew D. Whitton

    Inventor： David C. Webert ,  Todd R. Berger ,  Timothy R Stockdale ,  Matthew D. Whitton

    IPC: G06F19/00

    CPC classification number: F16H61/143 ,  F16H59/14 ,  F16H61/061 ,  F16H2059/465 ,  F16H2061/0087 ,  F16H2061/145

    Abstract: A control system for a transmission includes a pressure control module and a pressure adapt module. The pressure control module operates a hydraulic control system of the transmission at a target pressure during steady-state operation of the transmission. The target pressure is based on first and second learned pressures for different predetermined first and second torque ranges. The pressure adapt module selectively adjusts at least one of the first learned pressure and the second learned pressure based on a first pressure at which a slip condition of the transmission occurs. The first and second learned pressures define a learned pressure gain and offset. When adjusting the first and second learned pressures, the pressure adapt module limits increases and decreases in the learned pressure gain offset based on a predetermined pressure gain and offset. A method is also provided.

    Abstract translation: 用于变速器的控制系统包括压力控制模块和压力调节模块。 压力控制模块在变速器的稳态运行期间以目标压力操作变速器的液压控制系统。 目标压力基于针对不同的预定第一和第二扭矩范围的第一和第二学习压力。 压力适应模块基于发生滑动状态的第一压力选择性地调节第一学习压力和第二学习压力中的至少一个。 第一个和第二个学习的压力定义了一个学习的压力增益和偏移量。 当调节第一和第二学习压力时，压力适应模块基于预定的压力增益和偏移来限制学习压力增益偏移的增加和减小。 还提供了一种方法。

    Method of learning an initial capacity point of a clutch in a dual clutch transmission
    9.
    发明授权
    Method of learning an initial capacity point of a clutch in a dual clutch transmission 有权
    学习双离合器变速器中的离合器的初始容量点的方法

    公开(公告)号：US08443688B1

    公开(公告)日：2013-05-21

    申请号：US13558656

    申请日：2012-07-26

    Applicant: Matthew D. Whitton ,  Brandon E. Hancock

    Inventor： Matthew D. Whitton ,  Brandon E. Hancock

    IPC: B60W10/02

    CPC classification number: F16D48/06 ,  B60W2050/0075 ,  F16D2500/1083 ,  F16D2500/1086 ,  F16D2500/308 ,  F16D2500/30806 ,  Y10T74/19251 ,  Y10T477/75

    Abstract: A method of learning an initial capacity point of a clutch in a dual clutch transmission includes identifying when the dual clutch transmission is operating in a steady state gear condition with a first clutch continuously transmitting torque to a first shaft. When the dual clutch transmission is operating in a steady state gear condition, a second clutch is sequentially positioned in each of a plurality of application positions (Pn, Pn+1, Pn+2, . . . , Pn+i). The second clutch is configured to transmit torque to a second shaft. The second shaft is positioned in a geared state in each of the plurality of application positions. The first application position (Pn+i) in the sequence of application positions in which the second shaft is not successfully positioned in the geared state is defined as the initial capacity point of the second clutch.

    Abstract translation: 在双离合器变速器中学习离合器的初始容量点的方法包括识别何时双离合器变速器在稳定状态齿轮状态下操作，其中第一离合器将扭矩连续传递到第一轴。 当双离合变速器工作在稳态齿轮状态时，第二离合器依次位于多个施加位置（Pn，Pn + 1，Pn + 2，...，Pn + i）中的每一个中。 第二离合器构造成将扭矩传递到第二轴。 第二轴位于多个施加位置中的每一个中的齿轮状态。 将第二轴未成功定位在齿轮状态的施加位置的顺序中的第一施加位置（Pn + i）定义为第二离合器的初始容量点。

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