Real-time scheduling of linear models for control and estimation

    公开(公告)号:US09618919B2

    公开(公告)日:2017-04-11

    申请号:US12473413

    申请日:2009-05-28

    IPC分类号: G06G7/48 G05B17/02

    CPC分类号: G05B17/02

    摘要: A method of generating linear models for a physical system of interest is implemented in steps including, first, determining offline, a set of linear models for the physical system of interest by linearization of a nonlinear computational model of the physical system of interest at selected operating points or from desired data; second, analyzing offline, accuracy of each linear model and eliminating inaccurate linear models therefrom to provide a residual set of linear models; third, generating offline, linear models corresponding to grid points of one or more lookup tables based on the residual set of linear models; fourth, associating offline, lookup table grid points with selected scheduling variables, and fifth, generating algorithmic software for the physical system therefrom such that linear models for the physical system generated offline form the basis for online scheduling of linear models.

    METHOD AND SYSTEMS FOR VIRTUAL SENSOR SELECTION AND BLENDING
    5.
    发明申请
    METHOD AND SYSTEMS FOR VIRTUAL SENSOR SELECTION AND BLENDING 有权
    虚拟传感器选择和混合的方法和系统

    公开(公告)号:US20100250051A1

    公开(公告)日:2010-09-30

    申请号:US12415487

    申请日:2009-03-31

    IPC分类号: G06F19/00

    摘要: A method and systems for engine control of a vehicle propulsion system are provided. The system includes a plurality of engine model modules executing independently and programmed to receive engine operating condition values from a plurality of sensors positioned on an engine wherein each of the plurality of engine model modules is programmed to determine an estimate of a process parameter of a location in the engine where a sensor is not available, not present at the location, has failed, or is determined to be inaccurate. The system also includes an estimate source selector configured to determine model blending factors and a model blending module configured to determine an estimated virtual sensor value using the determined estimates from at least two of the plurality of engine model modules and the model blending factors.

    摘要翻译: 提供了一种用于车辆推进系统的发动机控制的方法和系统。 该系统包括多个发动机模型模块,其独立执行并被编程以从位于发动机上的多个传感器接收发动机操作状态值,其中多个发动机模型模块中的每一个被编程以确定位置的过程参数的估计 在传感器不可用的引擎中,不存在于位置,已经失败或被确定为不准确。 该系统还包括被配置为确定模型混合因子的估计源选择器和被配置为使用来自多个发动机模型模块和模型混合因子中的至少两个的所确定的估计来确定估计的虚拟传感器值的模型混合模块。

    Method and systems for virtual sensor selection and blending
    6.
    发明授权
    Method and systems for virtual sensor selection and blending 有权
    虚拟传感器选择和混合的方法和系统

    公开(公告)号:US08364340B2

    公开(公告)日:2013-01-29

    申请号:US12415487

    申请日:2009-03-31

    IPC分类号: G01M17/00 G06F7/00 G06F19/00

    摘要: A method and systems for engine control of a vehicle propulsion system are provided. The system includes a plurality of engine model modules executing independently and programmed to receive engine operating condition values from a plurality of sensors positioned on an engine wherein each of the plurality of engine model modules is programmed to determine an estimate of a process parameter of a location in the engine where a sensor is not available, not present at the location, has failed, or is determined to be inaccurate. The system also includes an estimate source selector configured to determine model blending factors and a model blending module configured to determine an estimated virtual sensor value using the determined estimates from at least two of the plurality of engine model modules and the model blending factors.

    摘要翻译: 提供了一种用于车辆推进系统的发动机控制的方法和系统。 该系统包括多个发动机模型模块,其独立执行并被编程以从位于发动机上的多个传感器接收发动机操作状态值,其中多个发动机模型模块中的每一个被编程以确定位置的过程参数的估计 在传感器不可用的引擎中,不存在于位置,已经失败或被确定为不准确。 该系统还包括被配置为确定模型混合因子的估计源选择器和被配置为使用来自多个发动机模型模块和模型混合因子中的至少两个的所确定的估计来确定估计的虚拟传感器值的模型混合模块。

    REAL-TIME SCHEDULING OF LINEAR MODELS FOR CONTROL AND ESTIMATION
    7.
    发明申请
    REAL-TIME SCHEDULING OF LINEAR MODELS FOR CONTROL AND ESTIMATION 有权
    线性模型的实时调度用于控制和估计

    公开(公告)号:US20100305912A1

    公开(公告)日:2010-12-02

    申请号:US12473413

    申请日:2009-05-28

    IPC分类号: G06F17/10 G06N3/12 G06G7/48

    CPC分类号: G05B17/02

    摘要: A method of generating linear models for a physical system of interest is implemented in steps including, first, determining offline, a set of linear models for the physical system of interest by linearization of a nonlinear computational model of the physical system of interest at selected operating points or from desired data; second, analyzing offline, accuracy of each linear model and eliminating inaccurate linear models therefrom to provide a residual set of linear models; third, generating offline, linear models corresponding to grid points of one or more lookup tables based on the residual set of linear models; fourth, associating offline, lookup table grid points with selected scheduling variables, and fifth, generating algorithmic software for the physical system therefrom such that linear models for the physical system generated offline form the basis for online scheduling of linear models.

    摘要翻译: 对于感兴趣的物理系统生成线性模型的方法是在以下步骤中实现的,其包括:首先,通过在所选择的操作中线性化所感兴趣的物理系统的非线性计算模型来确定所关心的物理系统的一组线性模型 点数或期望数据; 第二,离线分析,每个线性模型的准确性和消除不准确的线性模型,以提供一组残差线性模型; 第三,基于剩余的线性模型集生成对应于一个或多个查找表的网格点的离线模型; 第四,将离线,查找表格网格点与所选择的调度变量相关联,第五,从其生成物理系统的生成算法软件,使得离线生成的物理系统的线性模型形成线性模型的在线调度的基础。