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    ADAPTIVE CONTROL OF A LINEAR ACTUATOR
    31.
    发明申请
    ADAPTIVE CONTROL OF A LINEAR ACTUATOR 有权
    线性执行器的自适应控制

    公开(公告)号：US20150260238A1

    公开(公告)日：2015-09-17

    申请号：US14338997

    申请日：2014-07-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven P. Moorman ,  Brandon Fell ,  Mateusz Nowak

    IPC: F16D48/02 ,  F16D25/06

    CPC classification number: F16D25/14 ,  B60W10/02 ,  B60W20/40 ,  F16D25/06 ,  F16D48/02 ,  F16D48/062 ,  F16D2500/3026 ,  F16D2500/50236 ,  F16D2500/70217 ,  F16D2500/70235 ,  F16D2500/70605

    Abstract: A vehicle or other system includes hydraulic fluid, an actuatable device such as a clutch that includes a linear actuator, e.g., a clutch piston. The linear actuator is moveable via a pressure from the fluid to actuate the actuatable device. A position sensor measures and outputs a position of the linear actuator as a position signal. A controller is programmed to generate increasing and decreasing position-to-pressure (PTP) curves via measurement of the position, at a predetermined time, in response to a series of respectively increasing and decreasing pressure step commands. The controller adjusts the PTP curves using a calibrated set of offsets, locates a PTP point in a hysteresis range between the adjusted PTP curves, and controls the device using the PTP point. The offsets may include a temperature of the fluid, velocity of the linear actuator, and/or an engine speed.

    Abstract translation: 车辆或其他系统包括液压流体，可致动装置，例如包括线性致动器（例如离合器活塞）的离合器。 线性致动器可以通过来自流体的压力移动以致动可启动装置。 位置传感器测量并输出线性致动器的位置作为位置信号。 控制器被编程为响应于一系列分别增加和减少的压力步骤命令，在预定时间通过测量位置来产生增加和减小的位置压力（PTP）曲线。 控制器使用校准的偏移量调整PTP曲线，将PTP点定位在调整后的PTP曲线之间的滞后范围内，并使用PTP点控制设备。 偏移可以包括流体的温度，线性致动器的速度和/或发动机速度。

    Adaptive control of a flow control solenoid
    32.
    发明授权
    Adaptive control of a flow control solenoid 有权
    流量控制螺线管的自适应控制

    公开(公告)号：US08965652B2

    公开(公告)日：2015-02-24

    申请号：US13916761

    申请日：2013-06-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Steven P. Moorman ,  David H. Vu

    IPC: G06F7/00 ,  B60W10/10 ,  B60W10/30

    CPC classification number: B60W10/10 ,  B60W10/30 ,  F16D48/06 ,  F16D48/062 ,  F16D2500/1083 ,  F16D2500/3026 ,  F16D2500/30803 ,  F16D2500/5012 ,  F16D2500/50296 ,  F16D2500/70223 ,  F16D2500/70294 ,  F16D2500/70418 ,  F16D2500/70605 ,  F16D2500/7061 ,  F16D2500/70626

    Abstract: A vehicle includes an engine, a transmission, and a controller which executes a method. The transmission includes a clutch having an actuator which applies the clutch using position-based control logic. The transmission also includes a fluid pump and a variable-force or other solenoid valve positioned downstream of the pump and upstream of the clutch. The valve outputs a flow rate (Q) for a corresponding solenoid control current (I). The controller adapts a calibrated Q vs. I characteristic table of the valve for different transmission temperatures by applying closed-loop position control signals to the actuator at the different transmission temperatures and recording a null point(s) describing the corresponding solenoid control current (I) at a zero flow rate condition. The controller calculates an offset value for solenoid control current (I) using the recorded null point(s), applies the offset value to the characteristic table, and controls the clutch using the adapted characteristic table.

    Abstract translation: 车辆包括发动机，变速器和执行方法的控制器。 变速器包括具有致动器的离合器，该致动器使用基于位置的控制逻辑来施加离合器。 变速器还包括流体泵和位于泵下游和离合器上游的可变力或其他电磁阀。 阀门输出对应的螺线管控制电流（I）的流量（Q）。 控制器通过在不同的传输温度下对致动器施加闭环位置控制信号来适应不同传动温度下的阀的校准的Q对I特性表，并记录描述相应螺线管控制电流（I ）在零流量条件下。 控制器使用记录的零点计算电磁阀控制电流（I）的偏移值，将偏移值应用于特性表，并使用适配特性表来控制离合器。

    UPSHIFT CONTROL OF A DRY DUAL-CLUTCH TRANSMISSION
    33.
    发明申请
    UPSHIFT CONTROL OF A DRY DUAL-CLUTCH TRANSMISSION 有权
    干式双离合器变速箱的控制

    公开(公告)号：US20140195131A1

    公开(公告)日：2014-07-10

    申请号：US13906976

    申请日：2013-05-31

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian M. Porto ,  Matthew D. Whitton ,  Steven P. Moorman ,  Craig J. Hawkins ,  Roberto Diaz

    IPC: F16H61/688

    CPC classification number: F16H61/688 ,  B60K17/00 ,  F16H61/0437 ,  F16H2059/363 ,  F16H2061/0078 ,  F16H2061/0087

    Abstract: A vehicle includes an engine, a dry dual-clutch transmission (dDCT) having a pair of input clutches and a gearbox containing oddly- and evenly-numbered gear sets, and a transmission control module (TCM). Application of one of input clutches connects the engine to a corresponding one of the oddly- or evenly-numbered gear sets. The TCM includes feed-forward PID-based control logic, and a torque-to-position (TTP) table for each input clutch. The TCM commands a position of a designated input clutch during a power-on upshift using the feed-forward, PID-based control logic, and selectively adapts the TTP table as a function of an inertia and acceleration value of the engine. The TCM may apply an asymmetrical handoff profile to commanded oncoming and offgoing clutch torques during the torque phase of the upshift. The TCM may also adjust the TTP table as a function of the frequency of use of the input clutches.

    Abstract translation: 车辆包括发动机，具有一对输入离合器的干式双离合器变速器（dDCT）和包含奇数和均匀编号的齿轮组的变速箱和变速器控制模块（TCM）。 一个输入离合器的应用将发动机连接到奇数或均匀齿轮组中相应的一个。 TCM包括基于PID的前馈控制逻辑和每个输入离合器的转矩到位置（TTP）表。 TCM使用前馈，基于PID的控制逻辑在上电升档期间指定指定输入离合器的位置，并且根据发动机的惯性和加速度值选择性地适配TTP表。 TCM可以在升档的扭矩阶段期间应用不对称切换轮廓来指令迎接和离开的离合器扭矩。 TCM还可以根据输入离合器的使用频率来调整TTP表。

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