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    • 1. 发明申请
    • TECHNIQUES FOR ROBUST BATTERY STATE ESTIMATION
    • 用于稳健电池状态估计的技术
    • US20160054390A1
    • 2016-02-25
    • US14463016
    • 2014-08-19
    • Jian LinHong YangPawel MalyszJin YeRan GuAli Emadi
    • Jian LinHong YangPawel MalyszJin YeRan GuAli Emadi
    • G01R31/36
    • G01R31/367B60L58/10G01R31/3842G01R31/392Y02T10/7005Y02T10/705
    • More accurate and robust battery state estimation (BSE) techniques for a battery system of an electrified vehicle include estimating a current bias or offset generated by a current sensor and then adjusting the measured current to compensate for the estimated current bias. The techniques obtain nominal parameters for a battery model of the battery system based on a measured temperature and an estimated open circuit voltage (OCV). The techniques use these nominal parameters and the corrected measured current to estimate the OCV, a capacity, and an impedance of the battery system. The techniques utilize the OCV to estimate a state of charge (SOC) of the battery system. The techniques also estimate a state of health (SOH) of the battery system based on its estimated capacity and impedance. The techniques then control the electrified vehicle based on the SOC and/or the SOH.
    • 用于电气化车辆的电池系统的更精确和鲁棒的电池状态估计(BSE)技术包括估计由电流传感器产生的电流偏差或偏移,然后调整测量的电流以补偿估计的电流偏差。 该技术基于测量的温度和估计的开路电压(OCV)获得电池系统的电池模型的标称参数。 这些技术使用这些标称参数和校正的测量电流来估计电池系统的OCV,容量和阻抗。 该技术利用OCV来估计电池系统的充电状态(SOC)。 这些技术还基于其估计的容量和阻抗来估计电池系统的健康状况(SOH)。 然后,这些技术基于SOC和/或SOH控制电气化车辆。
    • 7. 发明申请
    • TECHNIQUES FOR ESTIMATING BATTERY PACK PARAMETERS
    • 评估电池组参数的技术
    • US20140372053A1
    • 2014-12-18
    • US13917142
    • 2013-06-13
    • Jian LinHong YangSteven L. Clark
    • Jian LinHong YangSteven L. Clark
    • G01R31/36
    • G01R31/3648B60L11/1851B60L11/1853B60L11/1857B60L11/1861B60L2240/547B60L2240/549B60L2260/44G01R31/3658Y02T10/7005Y02T10/7044Y02T10/705
    • A method for a battery pack controller of an electrified vehicle, the battery pack controller including one or more processors, includes identifying N battery cells of a battery pack that includes M battery cells, the N battery cells being weakest battery cells of the battery pack, wherein N is an integer greater than zero and less than M. The method includes determining one or more first parameters for each of the N battery cells, each of the one or more first parameters indicating a parameter for a specific battery cell. The method includes estimating one or more second parameters for the battery pack based on the one or more first parameters for each of the N battery cells, each of the one or more second parameters indicating a parameter for the battery pack. The method also includes outputting the one or more second parameters for the battery pack.
    • 一种电气化车辆的电池组控制器的方法,所述电池组控制器包括一个或多个处理器,包括识别包括M个电池单元的电池组的N个电池单元,所述N个电池单元是所述电池组的最弱的电池单元, 其中N是大于零且小于M的整数。该方法包括确定N个电池单元中的每一个的一个或多个第一参数,所述一个或多个第一参数中的每一个指示特定电池单元的参数。 该方法包括基于N个电池单元中的每一个的一个或多个第一参数估计电池组的一个或多个第二参数,所述一个或多个第二参数中的每一个指示电池组的参数。 该方法还包括输出电池组的一个或多个第二参数。
    • 8. 发明授权
    • Techniques for estimating battery pack parameters
    • 估算电池组参数的技术
    • US09594123B2
    • 2017-03-14
    • US13917142
    • 2013-06-13
    • Jian LinHong YangSteven L Clark
    • Jian LinHong YangSteven L Clark
    • G01R31/36B60L11/18
    • G01R31/3648B60L11/1851B60L11/1853B60L11/1857B60L11/1861B60L2240/547B60L2240/549B60L2260/44G01R31/3658Y02T10/7005Y02T10/7044Y02T10/705
    • A method for a battery pack controller of an electrified vehicle, the battery pack controller including one or more processors, includes identifying N battery cells of a battery pack that includes M battery cells, the N battery cells being weakest battery cells of the battery pack, wherein N is an integer greater than zero and less than M. The method includes determining one or more first parameters for each of the N battery cells, each of the one or more first parameters indicating a parameter for a specific battery cell. The method includes estimating one or more second parameters for the battery pack based on the one or more first parameters for each of the N battery cells, each of the one or more second parameters indicating a parameter for the battery pack. The method also includes outputting the one or more second parameters for the battery pack.
    • 一种电气化车辆的电池组控制器的方法,所述电池组控制器包括一个或多个处理器,包括识别包括M个电池单元的电池组的N个电池单元,所述N个电池单元是所述电池组的最弱的电池单元, 其中N是大于零且小于M的整数。该方法包括确定N个电池单元中的每一个的一个或多个第一参数,所述一个或多个第一参数中的每一个指示特定电池单元的参数。 该方法包括基于N个电池单元中的每一个的一个或多个第一参数估计电池组的一个或多个第二参数,所述一个或多个第二参数中的每一个指示电池组的参数。 该方法还包括输出电池组的一个或多个第二参数。