Estimating of the state of charge of a battery

    公开(公告)号:US10048319B2

    公开(公告)日:2018-08-14

    申请号:US14398562

    申请日:2013-05-03

    Applicant: RENAULT s.a.s.

    Abstract: A method for estimating a state of charge of a battery including plural cells connected in series, including: determination, at a given time, of a minimum cell voltage and of a maximum cell voltage from among the cell voltages, and calculation of a physical quantity analytically depending on the minimum and maximum cell voltages according to an equation including weighting elements ensuring the weight associated with the maximum cell voltage increases when the state of charge of the associated cell increases, and the weight associated with the minimum cell voltage increases when the state of charge of the associated cell decreases.

    STRUCTURE FOR MODULATING THE VOLTAGE OF A BATTERY AND THE ACTIVE EQUILIBRATION THEREOF
    3.
    发明申请
    STRUCTURE FOR MODULATING THE VOLTAGE OF A BATTERY AND THE ACTIVE EQUILIBRATION THEREOF 审中-公开
    用于调节电池电压的结构及其主动均衡

    公开(公告)号:US20150263390A1

    公开(公告)日:2015-09-17

    申请号:US14434932

    申请日:2013-10-03

    Applicant: RENAULT s.a.s.

    Abstract: A battery of accumulators including a plurality of power storage cells and an electrical network which connects the cells to one another. The cells are grouped together in composite cells including two identical branches each including at least one cell and the composite cells being connected in series to one another. The electrical network includes: a mechanism for parallel or connection in series of the cells of each composite cell, and a mechanism for controlling the connection mechanism, which is configured to connect the cells of each composite cell in parallel or in series to adapt an output voltage of the battery of accumulators to a desired value and to balance charging states of the cells.

    Abstract translation: 一组蓄电池,包括多个蓄电单元和将电池彼此连接的电网。 细胞在复合细胞中分组在一起,包括两个相同的分支,每个分支包括至少一个细胞,并且复合细胞彼此串联连接。 电网包括:用于并联或连接每个复合小区的小区的机制,以及用于控制连接机制的机制,其被配置为并行或串联连接每个复合小区的小区以适应输出 蓄电池电池的电压达到期望值,并平衡电池的充电状态。

    ESTIMATING OF THE STATE OF CHARGE OF A BATTERY
    4.
    发明申请
    ESTIMATING OF THE STATE OF CHARGE OF A BATTERY 审中-公开
    电池充电状态估算

    公开(公告)号:US20150106044A1

    公开(公告)日:2015-04-16

    申请号:US14398562

    申请日:2013-05-03

    Applicant: RENAULT s.a.s.

    CPC classification number: G01R31/3648 G01R31/3606 G01R31/3624 G01R31/3658

    Abstract: A method for estimating a state of charge of a battery including plural cells connected in series, including: determination, at a given time, of a minimum cell voltage and of a maximum cell voltage from among the cell voltages, and calculation of a physical quantity analytically depending on the minimum and maximum cell voltages according to an equation including weighting elements ensuring the weight associated with the maximum cell voltage increases when the state of charge of the associated cell increases, and the weight associated with the minimum cell voltage increases when the state of charge of the associated cell decreases.

    Abstract translation: 一种用于估计包括串联连接的多个单元的电池的充电状态的方法,包括:在给定时间确定单元电压中的最小单元电压和最大单元电压,以及物理量的计算 根据包括确定与最大电池电压相关联的重量的加权元件的等式的分解来分析,当相关电池的电荷状态增加时,与最小电池电压相关联的重量增加时,当状态 相关细胞的电荷减少。

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