Device and method for fast position control of a hydraulic actuator

    公开(公告)号:US10371018B2

    公开(公告)日:2019-08-06

    申请号:US15468508

    申请日:2017-03-24

    Abstract: A method, control system, and variable valve timing system are provided for controlling an actuator that can be switched into an on state and an off state with pulse width modulation. The systems and method include controls configured to determine an actual system parameter on a first time schedule and a desired system parameter on a second time schedule. On a third time schedule, a position error difference between the actual system parameter and the desired system parameter is determined. The third time schedule is configured to begin and to determine the position error difference each time that the actual system parameter is determined and each time that the desired system parameter is determined. A desired duty cycle is determined, and a duty cycle command is sent to a pulse width modulation output unit.

    Throttle control systems and methods based on pressure ratio
    2.
    发明授权
    Throttle control systems and methods based on pressure ratio 有权
    节气门控制系统和方法基于压力比

    公开(公告)号:US09528453B2

    公开(公告)日:2016-12-27

    申请号:US14617068

    申请日:2015-02-09

    Abstract: A torque requesting module generates a torque request for an engine based on driver input. A model predictive control (MPC) module: identifies sets of possible target values based on the torque request, each of the sets of possible target values including target pressure ratios across a throttle valve; determines predicted operating parameters for the sets of possible target values, respectively; determines cost values for the sets of possible target values, respectively; selects one of the sets of possible target values based on the cost values; and sets target values based on the possible target values of the selected one of the sets, respectively, the target values including a target pressure ratio across the throttle valve. A target area module determines a target opening area of the throttle valve based on the target pressure ratio. A throttle actuator module controls the throttle valve based on the target opening.

    Abstract translation: 扭矩请求模块基于驱动器输入产生对发动机的扭矩请求。 模型预测控制(MPC)模块:基于扭矩请求识别可能的目标值的集合,每组可能的目标值包括节流阀两端的目标压力比; 分别确定可能目标值集合的预测操作参数; 分别确定可能目标值集合的成本值; 根据成本值选择一组可能的目标值; 并且分别基于所选择的一个组中的所选择的一个组的可能目标值来设置目标值,所述目标值包括横跨节流阀的目标压力比。 目标区域模块基于目标压力比确定节气门的目标开度面积。 节气门执行器模块基于目标开口控制节气门。

    Throttle Control Systems And Methods Based On Pressure Ratio
    4.
    发明申请
    Throttle Control Systems And Methods Based On Pressure Ratio 有权
    基于压力比的节气门控制系统和方法

    公开(公告)号:US20160131061A1

    公开(公告)日:2016-05-12

    申请号:US14617068

    申请日:2015-02-09

    Abstract: A torque requesting module generates a torque request for an engine based on driver input. A model predictive control (MPC) module: identifies sets of possible target values based on the torque request, each of the sets of possible target values including target pressure ratios across a throttle valve; determines predicted operating parameters for the sets of possible target values, respectively; determines cost values for the sets of possible target values, respectively; selects one of the sets of possible target values based on the cost values; and sets target values based on the possible target values of the selected one of the sets, respectively, the target values including a target pressure ratio across the throttle valve. A target area module determines a target opening area of the throttle valve based on the target pressure ratio. A throttle actuator module controls the throttle valve based on the target opening.

    Abstract translation: 扭矩请求模块基于驱动器输入产生对发动机的扭矩请求。 模型预测控制(MPC)模块:基于扭矩请求识别可能的目标值的集合,每组可能的目标值包括节流阀两端的目标压力比; 分别确定可能目标值集合的预测操作参数; 分别确定可能目标值集合的成本值; 根据成本值选择一组可能的目标值; 并且分别基于所选择的一个组中的所选择的一个组的可能目标值来设置目标值,所述目标值包括横跨节流阀的目标压力比。 目标区域模块基于目标压力比确定节气门的目标开度面积。 节气门执行器模块基于目标开口控制节气门。

    Automatic transmission input clutch control
    7.
    发明授权
    Automatic transmission input clutch control 有权
    自动变速器输入离合器控制

    公开(公告)号:US08825319B2

    公开(公告)日:2014-09-02

    申请号:US13767320

    申请日:2013-02-14

    Abstract: A method of controlling the performance of a vehicle from a stationary condition includes operating a vehicle powertrain in a creep mode following the disengagement of a driver-operated braking device; and operating the vehicle powertrain in a launch mode following an engagement of a driver-operated acceleration device subsequent to the disengagement of the driver-operated braking device. Operating a vehicle powertrain in a creep mode includes: applying a friction clutch to couple an engine crankshaft of the vehicle powertrain with an input shaft of the transmission; determining a torque command to accelerate the vehicle powertrain at a predetermined rate; providing the torque command to an engine controller to controllably increase the input torque to the transmission; and operating a closed loop engine speed control module to prevent the crankshaft speed from slowing below a predetermined engine idle speed.

    Abstract translation: 一种从静止状态控制车辆的性能的方法包括在驱动器操作的制动装置脱离之后以蠕变模式操作车辆动力传动系; 以及在驱动器操作的制动装置的分离之后驾驶员操作的加速装置的接合之后,以发射模式操作车辆动力系。 以蠕变模式操作车辆动力传动系统包括:施加摩擦离合器以将车辆动力系的发动机曲轴与变速器的输入轴联接; 确定以预定速率加速所述车辆动力系的转矩指令; 向发动机控制器提供转矩指令以可控地增加对变速器的输入转矩; 并且操作闭环发动机速度控制模块以防止曲轴速度在预定的发动机怠速下降低。

    AUTOMATIC TRANSMISSION INPUT CLUTCH CONTROL
    10.
    发明申请
    AUTOMATIC TRANSMISSION INPUT CLUTCH CONTROL 有权
    自动变速箱输入离合器控制

    公开(公告)号:US20130311055A1

    公开(公告)日:2013-11-21

    申请号:US13767320

    申请日:2013-02-14

    Abstract: A method of controlling the performance of a vehicle from a stationary condition includes operating a vehicle powertrain in a creep mode following the disengagement of a driver-operated braking device; and operating the vehicle powertrain in a launch mode following an engagement of a driver-operated acceleration device subsequent to the disengagement of the driver-operated braking device. Operating a vehicle powertrain in a creep mode includes: applying a friction clutch to couple an engine crankshaft of the vehicle powertrain with an input shaft of the transmission; determining a torque command to accelerate the vehicle powertrain at a predetermined rate; providing the torque command to an engine controller to controllably increase the input torque to the transmission; and operating a closed loop engine speed control module to prevent the crankshaft speed from slowing below a predetermined engine idle speed.

    Abstract translation: 一种从静止状态控制车辆的性能的方法包括在驱动器操作的制动装置脱离之后以蠕变模式操作车辆动力传动系; 以及在驱动器操作的制动装置的分离之后驾驶员操作的加速装置的接合之后,以发射模式操作车辆动力系。 以蠕变模式操作车辆动力传动系统包括:施加摩擦离合器以将车辆动力系的发动机曲轴与变速器的输入轴联接; 确定以预定速率加速所述车辆动力系的转矩指令; 向发动机控制器提供转矩指令以可控地增加对变速器的输入转矩; 并且操作闭环发动机速度控制模块以防止曲轴速度在预定的发动机怠速下降低。

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