中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

35 records (took 0.023 seconds)

    Active thermal management system and method for flow control
    2.
    发明授权
    Active thermal management system and method for flow control 有权

    公开(公告)号：US11312208B2

    公开(公告)日：2022-04-26

    申请号：US16551064

    申请日：2019-08-26

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Min Sun ,  Yiran Hu ,  David E. Edwards ,  Jun Chen ,  Insu Chang ,  Steven P. Moorman

    IPC: B60H1/00 ,  F01P7/16

    Abstract: Systems and methods are provided for management of a thermal system. A system for thermal management includes a thermal system with fluid conduits. A sensor is disposed to monitor an input parameter state of the thermal system. An actuator is configured to vary a flow in the fluid conduits. A controller is configured to receive a signal representative of the input parameter state; process an actuator state through a flow model of the thermal system to obtain an existing flow in the fluid conduits; process the existing flow through a thermal model of the thermal system to determine an input that reduces an error between a desired parameter state and the input parameter state; process the input through an inverse flow model to convert the input to a desired actuator state; and position the actuator in the desired actuator state.

    FLUID CIRCUIT CONTROL WITH ADAPTIVE DETERMINATION OF AN ACCUMULATOR RESERVE VOLUME
    4.
    发明申请
    FLUID CIRCUIT CONTROL WITH ADAPTIVE DETERMINATION OF AN ACCUMULATOR RESERVE VOLUME 有权
    具有自适应确定累加器储存量的流体电路控制

    公开(公告)号：US20150260279A1

    公开(公告)日：2015-09-17

    申请号：US14328993

    申请日：2014-07-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven P. Moorman ,  Crystal Nassouri

    IPC: F16H61/00 ,  F16H61/02 ,  F16H61/688

    CPC classification number: F16H61/0025 ,  F16H61/0204 ,  F16H61/688 ,  F16H2061/0034

    Abstract: A system includes a fluid pump, a hydraulic accumulator, and a controller. The controller calculates a reserve volume of the accumulator as a function of a component volume, leakage in the system, and a displacement of the pump, and executes a control action using the calculated reserve volume. The system may be a vehicle having input clutches and a dual clutch transmission (DCT) having gear forks. In such an embodiment, the accumulator and pump supply fluid pressure to the input clutches and gear forks in response to control signals from the controller. The controller executes a method that includes calculating the reserve volume of the accumulator as a function of a component volume, a volume of leakage in the system, and a displacement of the fluid pump. The method also includes executing a shift of the DCT using the calculated reserve volume.

    Abstract translation: 系统包括流体泵，液压蓄能器和控制器。 控制器根据组件体积，系统中的泄漏和泵的位移计算蓄能器的储备量，并使用计算的储备量执行控制动作。 该系统可以是具有输入离合器的车辆和具有齿轮叉的双离合器变速器（DCT）。 在这种实施例中，蓄能器和泵响应于来自控制器的控制信号，向输入离合器和齿轮叉供给流体压力。 控制器执行一种方法，该方法包括根据组件体积，系统中的泄漏量和流体泵的位移来计算蓄能器的储备量。 该方法还包括使用所计算的预留量来执行DCT的移位。

    ADAPTIVE CONTROL OF A FLOW CONTROL SOLENOID VALVE
    5.
    发明申请
    ADAPTIVE CONTROL OF A FLOW CONTROL SOLENOID VALVE 有权
    流量控制电磁阀的自适应控制

    公开(公告)号：US20150233469A1

    公开(公告)日：2015-08-20

    申请号：US14185236

    申请日：2014-02-20

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Steven P. Moorman ,  David H. Vu

    IPC: F16H61/06

    CPC classification number: F16H61/061 ,  F16D48/06 ,  F16D48/062 ,  F16D2500/1026 ,  F16D2500/3026 ,  F16D2500/3056 ,  F16D2500/3168 ,  F16D2500/5012 ,  F16D2500/70294 ,  F16D2500/70418 ,  F16H61/0251 ,  F16H61/688 ,  F16H2061/0087 ,  F16H2061/0459 ,  F16H2061/062

    Abstract: A vehicle includes an engine, first clutch, transmission, and controller. The transmission includes a gearbox, position sensors, and a fluid circuit. The gearbox contains a second clutch. The fluid circuit includes a pump and a flow control solenoid valve. The controller opens the valve via flow control signals to allow fluid to pass into or from the particular clutch it feeds. The controller executes steps of a method to determine an actual flow rate through the valve as the clutch moves, and also calculates a compensation scale factor as a ratio of the commanded and actual flow rates. The controller modifies the flow control signals in a subsequent clutch actuation using the compensation scale factor, such as by multiplying a commanded flow rate corresponding to the flow control signals by the compensation scale factor. A system includes rotatable members connected by a clutch, the controller, valve, and position sensor.

    Abstract translation: 车辆包括发动机，第一离合器，变速器和控制器。 变速器包括齿轮箱，位置传感器和流体回路。 变速箱包含第二离合器。 流体回路包括泵和流量控制电磁阀。 控制器通过流量控制信号打开阀门，以使流体进入或从其进给的特定离合器进入。 控制器执行一种方法的步骤，以确定当离合器移动时通过阀的实际流量，并且还计算作为指令和实际流量之比的补偿比例因子。 控制器使用补偿比例因子来修改后续离合器致动中的流量控制信号，例如通过将与流量控制信号相对应的指令流量乘以补偿比例因子。 系统包括通过离合器，控制器，阀和位置传感器连接的可旋转构件。

    ADAPTIVE CONTROL OF A FLOW CONTROL SOLENOID
    6.
    发明申请
    ADAPTIVE CONTROL OF A FLOW CONTROL SOLENOID 有权
    流量控制电磁阀的自适应控制

    公开(公告)号：US20140371998A1

    公开(公告)日：2014-12-18

    申请号：US13916761

    申请日：2013-06-13

    Applicant: GM Global Technology Operations LLC

    Inventor： Steven P. Moorman ,  David H. Vu

    IPC: 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。 阀门输出对应的电磁控制电流（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。

    TEST SEQUENCE FOR BRAKE SYSTEM
    7.
    发明申请
    TEST SEQUENCE FOR BRAKE SYSTEM 有权

    公开(公告)号：US20220055599A1

    公开(公告)日：2022-02-24

    申请号：US16999152

    申请日：2020-08-21

    Applicant: GM Global Technology Operations LLC

    Inventor： Steven P. Moorman ,  Bret M. Olson ,  Shawn M. Harris

    IPC: B60T17/22 ,  B60T13/14 ,  B60T13/68

    Abstract: A method of testing a braking system for an automotive vehicle that includes a master cylinder, a brake booster, a plurality of brake assemblies, a plurality of inlet valves, each inlet valve adapted to selectively allow brake fluid to flow into one of the plurality of brake assemblies and a plurality of outlet valves, each outlet valve adapted to selectively allow brake fluid to flow from one of the brake assemblies to a brake fluid reservoir, the method includes testing a first one of the plurality of inlet valves, testing a first one of the plurality of outlet valves, and sending diagnostic information to a controller within the automotive vehicle.

    CLUTCH AND TORQUE CONVERTER CONTROL FOR A CONTINUOUSLY VARIABLE TRANSMISSION
    8.
    发明申请
    CLUTCH AND TORQUE CONVERTER CONTROL FOR A CONTINUOUSLY VARIABLE TRANSMISSION 有权
    用于连续可变传动的离合器和转矩转换器控制

    公开(公告)号：US20160265658A1

    公开(公告)日：2016-09-15

    申请号：US14643655

    申请日：2015-03-10

    Applicant: GM Global Technology Operations LLC

    Inventor： Philip C. Lundberg ,  Steven P. Moorman

    IPC: F16H61/14 ,  F16H45/00 ,  F16H61/00 ,  F16H61/02 ,  F16H61/12 ,  F16H61/662

    CPC classification number: F16H61/14 ,  F16H45/00 ,  F16H61/0021 ,  F16H61/0267 ,  F16H61/12 ,  F16H61/66 ,  F16H2061/1252

    Abstract: A hydraulic control system with clutch and torque converter control for a CVT includes a pressure regulator subsystem, a cooler subsystem, a manual valve assembly, and a torque converter control valve assembly connected to the torque converter clutch (TCC) and the cooler subsystem. A boost valve assembly is connected to the pressure regulator subsystem, the manual valve assembly, and the torque converter clutch control valve assembly. A clutch control solenoid is configured to move the boost valve to the boost position and the control valve to the release position and to control a pressure of the hydraulic fluid provided to the manual valve assembly. A TCC control solenoid is configured to move the boost valve to the boost position and to control a pressure of the hydraulic fluid provided to the torque converter control valve assembly.

    Abstract translation: 具有用于CVT的离合器和变矩器控制的液压控制系统包括压力调节器子系统，冷却器子系统，手动阀组件和连接到变矩器离合器（TCC）和冷却器子系统的变矩器控制阀组件。 升压阀组件连接到压力调节器子系统，手动阀组件和变矩器离合器控制阀组件。 离合器控制螺线管构造成将升压阀移动到升压位置，并将控制阀移动到释放位置，并控制提供给手动阀组件的液压流体的压力。 TCC控制螺线管被配置为将升压阀移动到升压位置并且控制提供给变矩器控制阀组件的液压流体的压力。

    Adaptive control of a linear actuator
    9.
    发明授权
    Adaptive control of a linear actuator 有权
    线性执行器的自适应控制

    公开(公告)号：US09316271B2

    公开(公告)日：2016-04-19

    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: B60W10/02 ,  F16D48/02 ,  F16D25/06 ,  B60W20/00

    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。

Patent Agency Ranking