BATTERY CONTROL METHOD FOR HYBRID VEHICLES
    22.
    发明申请
    BATTERY CONTROL METHOD FOR HYBRID VEHICLES 有权
    混合动力汽车的电池控制方法

    公开(公告)号:US20090045780A1

    公开(公告)日:2009-02-19

    申请号:US12190774

    申请日:2008-08-13

    IPC分类号: H02J7/00

    摘要: A hybrid control module comprises a vehicle load module and a hybrid battery discharge module. The vehicle load module determines a first power based on power delivered to an accessory power module (APM). The hybrid battery discharge module determines a discharge power based on the first power and selectively controls power consumed by an inverter based on the discharge power when a state of charge of a hybrid battery is less than a first threshold and greater than a second threshold. The inverter and the APM selectively receive power from the hybrid battery.

    摘要翻译: 混合控制模块包括车辆负载模块和混合电池排出模块。 车辆负载模块基于递送到附件功率模块(APM)的功率来确定第一功率。 混合电池放电模块基于第一功率确定放电功率,并且当混合电池的充电状态小于第一阈值且大于第二阈值时,基于放电功率选择性地控制逆变器消耗的功率。 逆变器和APM选择性地从混合电池接收电力。

    Algorithm for determining the capacity of a battery while in service
    25.
    发明授权
    Algorithm for determining the capacity of a battery while in service 有权
    用于在使用中确定电池容量的算法

    公开(公告)号:US08525519B2

    公开(公告)日:2013-09-03

    申请号:US13028956

    申请日:2011-02-16

    IPC分类号: H01M10/44 H01M10/46

    CPC分类号: G01R31/3648

    摘要: A method for estimating the capacity of a vehicle battery while in service. The method includes providing a previous battery state-of-charge, battery temperature and integrated battery current amp-hours, and determining that battery contactors have been closed after they have been opened and disconnected from a load. The method determines if the battery has been at rest for a long enough period of time while the contactors were open, where the battery rest time is based on battery temperature, and determines an initial battery voltage from a last time step when the battery contactors were closed prior to the contactors being open during the battery rest time. The method determines a present battery state-of-charge from the initial battery voltage and the battery temperature and calculates the battery capacity based on the battery integrated current amp-hours divided by the difference between the present battery state-of-charge and the previous battery state-of-charge.

    摘要翻译: 一种用于在使用中估计车辆电池的容量的方法。 该方法包括提供先前的电池充电状态,电池温度和集成的电池电流安培小时,并且确定电池接触器在已经被打开并与负载断开之后已被关闭。 该方法确定电池在接触器打开时是否已经休息足够长的时间,其中电池休息时间是基于电池温度,并且当电池接触器是最后时间步长时确定最后时间步长的初始电池电压 在电池休息时间期间接触器打开之前关闭。 该方法根据初始电池电压和电池温度来确定当前电池的充电状态,并且基于电池集成的当前安培小时除以当前电池充电状态与之前的电池电压之间的差异来计算电池容量 电池充电状态。

    Method of Controlling a State-of-Charge (SOC) of a Vehicle Battery
    27.
    发明申请
    Method of Controlling a State-of-Charge (SOC) of a Vehicle Battery 有权
    控制车辆电池的充电状态(SOC)的方法

    公开(公告)号:US20120200257A1

    公开(公告)日:2012-08-09

    申请号:US13021204

    申请日:2011-02-04

    IPC分类号: H02J7/04 H02J7/00

    摘要: A system and method for controlling a state-of-charge (SOC) of a vehicle battery, such as a high-voltage battery used by a hybrid electric vehicle (HEV) for vehicle propulsion, so that the SOC is maintained within a desired SOC range that is temperature-dependent. In an exemplary embodiment, the system and method use a battery temperature prediction to determine a desired SOC range, and then control the amount of charge on the vehicle battery such that the SOC is maintained within the desired SOC range. As the battery temperature prediction goes lower (i.e., as it gets colder), the desired SOC range may need to be adjusted or shifted upwards in order to account for increased internal battery resistance and to ensure that the vehicle battery has enough power to start the vehicle. Similarly, as the battery temperature prediction goes higher (i.e., as it gets warmer), the desired SOC range may need to be adjusted or shifted downwards in order to reduce degradation effects and improve battery. The exemplary system and method control the SOC of the vehicle battery and may seek to optimize a number of different parameters, including battery life, battery performance and/or vehicle fuel economy.

    摘要翻译: 一种用于控制用于车辆推进的混合电动车辆(HEV)使用的高压电池的车辆电池的充电状态(SOC)的系统和方法,使得SOC保持在期望的SOC 温度依赖的范围。 在示例性实施例中,系统和方法使用电池温度预测来确定期望的SOC范围,然后控制车辆电池上的电荷量,使得SOC保持在期望的SOC范围内。 随着电池温度预测的降低(即,随着温度越来越低),期望的SOC范围可能需要被调整或向上移动,以便考虑增加的内部电池电阻并且确保车辆电池具有足够的功率来启动 车辆。 类似地,随着电池温度预测的升高(即,随着温度升高),期望的SOC范围可能需要被调整或向下移动以减少劣化效应并改善电池。 示例性系统和方法控制车辆电池的SOC,并且可以寻求优化包括电池寿命,电池性能和/或车辆燃料经济性在内的许多不同参数。

    Method and apparatus for modeling diffusion in an electrochemical system
    29.
    发明授权
    Method and apparatus for modeling diffusion in an electrochemical system 有权
    用于在电化学系统中建模扩散的方法和装置

    公开(公告)号:US07646166B2

    公开(公告)日:2010-01-12

    申请号:US11567239

    申请日:2006-12-06

    IPC分类号: H02J7/14

    摘要: A method for determining a diffusion voltage in an electrochemical cell (e.g., a battery used in connection with an automotive vehicle) includes estimating a previous diffusion voltage, calculating a new diffusion voltage using an equation based on a diffusion circuit model and the previous diffusion voltage, and setting the previous diffusion voltage equal to the new diffusion voltage. The step of calculating the new diffusion voltage may then be repeated.

    摘要翻译: 用于确定电化学电池(例如,与机动车辆结合使用的电池)中的扩散电压的方法包括估计先前的扩散电压,使用基于扩散电路模型的方程和先前的扩散电压来计算新的扩散电压 ,并将先前的扩散电压设置为等于新的扩散电压。 然后可以重复计算新扩散电压的步骤。

    Method and apparatus for generalized recursive least-squares process for battery state of charge and state of health
    30.
    发明授权
    Method and apparatus for generalized recursive least-squares process for battery state of charge and state of health 有权
    用于电池充电状态和健康状况的广义递归最小二乘法的方法和装置

    公开(公告)号:US07324902B2

    公开(公告)日:2008-01-29

    申请号:US10368869

    申请日:2003-02-18

    IPC分类号: G01R19/00

    摘要: A method for determining a voltage based or current based state of charge (SOC) and state of health (SOH) of a battery system is provided. The method includes: providing a model of the battery system including an equivalent circuit having both low frequency and high frequency elements; establishing a plurality of functional relationships comprising relationship of the equivalent circuit with SOC; reducing at least part of the plurality of functional relationships into a set of time segmented recursive functional relationships, wherein a state at a first time t can be modeled by a functional presentation of a state at a second time t−Δt that occurred before the first time t; and computing a set of data points based upon the set of time segmented recursive functional relationships using a matrix for operation in matrix algebra.

    摘要翻译: 提供了一种用于确定电池系统的基于电压或基于电流的状态(SOC)和健康状态(SOH)的方法。 该方法包括:提供包括具有低频和高频元件的等效电路的电池系统的模型; 建立包括等效电路与SOC的关系的多个功能关系; 将所述多个功能关系的至少一部分减少为一组时间分段的递归函数关系,其中可以通过在第一时间t之前发生的第二时间t-Deltat的状态的功能呈现来建模第一时间t的状态 时间t 以及使用用于矩阵代数中的操作的矩阵,基于所述一组时间分段递归函数关系来计算一组数据点。