Method for battery state-of-health monitoring using battery voltage during vehicle starting
    2.
    发明申请
    Method for battery state-of-health monitoring using battery voltage during vehicle starting 有权
    在车辆启动期间使用电池电压进行电池健康状态监测的方法

    公开(公告)号:US20090322340A1

    公开(公告)日:2009-12-31

    申请号:US12147552

    申请日:2008-06-27

    IPC分类号: G01N27/416

    摘要: A method is provided for determining a battery's state-of-health. An initial battery voltage is measured after a first voltage drop during an initiation of an engine cranking phase. A battery voltage is monitored during the remainder of the engine cranking phase. A lowest battery voltage is determined during the remainder of the engine cranking phase. A determination is made if a voltage difference between the lowest battery voltage and the initial battery voltage at the initiation of the engine cranking phase is less than a voltage threshold. A low battery state-of-health is identified in response to the voltage difference being less than the voltage threshold.

    摘要翻译: 提供了一种用于确定电池的健康状况的方法。 在发动机起动阶段开始之前的第一次电压降之后测量初始电池电压。 在发动机起动阶段的剩余时间内监测电池电压。 在发动机起动阶段的剩余时间内确定最低的电池电压。 如果发动机起动阶段开始时最低电池电压和初始电池电压之间的电压差小于电压阈值,则确定。 响应于电压差小于电压阈值来识别低电量的健康状态。

    Method and apparatus for monitoring an electrical energy storage device
    5.
    发明申请
    Method and apparatus for monitoring an electrical energy storage device 有权
    用于监测电能存储装置的方法和装置

    公开(公告)号:US20080150457A1

    公开(公告)日:2008-06-26

    申请号:US11736151

    申请日:2007-04-17

    IPC分类号: H02P3/00

    摘要: A method and article of manufacture for monitoring an electrical energy storage device adapted to supply electrical power to a selectively actuable electric motor is described. This comprises determining a state of charge and a temperature of the electrical energy storage device subsequent to a stabilization period, and measuring a minimum voltage output from the electrical energy storage device during selective actuation of the electric motor. One of a plurality of predetermined threshold voltage states is selected based upon the state of charge and the temperature. The minimum voltage is compared to the selected predetermined threshold voltage.

    摘要翻译: 描述了用于监测适于向可选择性致动的电动机提供电力的电能存储装置的方法和制品。 这包括在稳定时段之后确定电能存储装置的充电状态和温度,以及在选择性地致动电动机期间测量从电能存储装置输出的最小电压。 基于充电状态和温度来选择多个预定阈值电压状态中的一个。 将最小电压与所选择的预定阈值电压进行比较。

    Method and apparatus for monitoring an electrical energy storage device
    6.
    发明授权
    Method and apparatus for monitoring an electrical energy storage device 有权
    用于监测电能存储装置的方法和装置

    公开(公告)号:US07545109B2

    公开(公告)日:2009-06-09

    申请号:US11736151

    申请日:2007-04-17

    IPC分类号: H02P1/00

    摘要: A method and article of manufacture for monitoring an electrical energy storage device adapted to supply electrical power to a selectively actuable electric motor is described. This comprises determining a state of charge and a temperature of the electrical energy storage device subsequent to a stabilization period, and measuring a minimum voltage output from the electrical energy storage device during selective actuation of the electric motor. One of a plurality of predetermined threshold voltage states is selected based upon the state of charge and the temperature. The minimum voltage is compared to the selected predetermined threshold voltage.

    摘要翻译: 描述了用于监测适于向可选择性致动的电动机提供电力的电能存储装置的方法和制品。 这包括在稳定时段之后确定电能存储装置的充电状态和温度,以及在选择性地致动电动机期间测量从电能存储装置输出的最小电压。 基于充电状态和温度来选择多个预定阈值电压状态中的一个。 将最小电压与所选择的预定阈值电压进行比较。

    INTEGRATED HIERARCHICAL PROCESS FOR FAULT DETECTION AND ISOLATION
    7.
    发明申请
    INTEGRATED HIERARCHICAL PROCESS FOR FAULT DETECTION AND ISOLATION 审中-公开
    用于故障检测和分离的综合分层过程

    公开(公告)号:US20090295559A1

    公开(公告)日:2009-12-03

    申请号:US12131347

    申请日:2008-06-02

    IPC分类号: B60Q1/00

    摘要: A system and method for determining the root cause of a fault in a vehicle system, sub-system or component using models and observations. In one embodiment, a hierarchical tree is employed to combine trouble or diagnostic codes from multiple sub-systems and components to get a confidence estimate of whether a certain diagnostic code is accurately giving an indication of problem with a particular sub-system or component. In another embodiment, a hierarchical diagnosis network is employed that relies on the theory of hierarchical information whereby at any level of the network only the required abstracted information is being used for decision making. In another embodiment, a graph-based diagnosis and prognosis system is employed that includes a plurality of nodes interconnected by information pathways. The nodes are fault diagnosis and fault prognosis nodes for components or sub-systems, and contain fault and state-of-health diagnosis and reasoning modules.

    摘要翻译: 一种用于确定车辆系统,子系统或部件中使用模型和观测值的故障的根本原因的系统和方法。 在一个实施例中,使用分层树来组合来自多个子系统和组件的故障或诊断代码,以得到某一诊断代码是否准确地给出特定子系统或组件的问题的指示的置信度估计。 在另一个实施例中,采用依赖于层次信息理论的分级诊断网络,其中在网络的任何级别仅仅将所需的抽象信息用于决策。 在另一个实施例中,采用基于图的诊断和预后系统,其包括通过信息路径互连的多个节点。 节点是组件或子系统的故障诊断和故障预测节点,并包含故障和状态健康诊断和推理模块。

    Method for battery capacity estimation
    9.
    发明授权
    Method for battery capacity estimation 有权
    电池容量估算方法

    公开(公告)号:US08084996B2

    公开(公告)日:2011-12-27

    申请号:US12147539

    申请日:2008-06-27

    IPC分类号: H02J7/00 G01N27/416

    CPC分类号: G01R31/3679 G01R31/3624

    摘要: An embodiment contemplates a method for estimating a capacity of a battery. A state of charge is determined at a first instant of time and at a second instant of time. A difference in the state of charge is determined between the first instant of time and the second instant of time. A net coulomb flow is calculated between the first instant of time and the second instant of time. The battery capacity is determined as a function of the change in the state of charge and the net coulomb flow.

    摘要翻译: 实施例考虑了用于估计电池容量的方法。 在第一时刻和第二时刻确定充电状态。 在第一时刻和第二时刻之间确定充电状态的差异。 在第一时刻和第二时刻之间计算净库仑流量。 电池容量被确定为充电状态和净库仑流动的变化的函数。

    Method for battery capacity estimation
    10.
    发明申请
    Method for battery capacity estimation 有权
    电池容量估算方法

    公开(公告)号:US20090322283A1

    公开(公告)日:2009-12-31

    申请号:US12147539

    申请日:2008-06-27

    IPC分类号: H02J7/00

    CPC分类号: G01R31/3679 G01R31/3624

    摘要: An embodiment contemplates a method for estimating a capacity of a battery. A state of charge is determined at a first instant of time and at a second instant of time. A difference in the state of charge is determined between the first instant of time and the second instant of time. A net coulomb flow is calculated between the first instant of time and the second instant of time. The battery capacity is determined as a function of the change in the state of charge and the net coulomb flow.

    摘要翻译: 实施例考虑了用于估计电池容量的方法。 在第一时刻和第二时刻确定充电状态。 在第一时刻和第二时刻之间确定充电状态的差异。 在第一时刻和第二时刻之间计算净库仑流量。 电池容量被确定为充电状态和净库仑流动的变化的函数。