DC-DC CONVERTER COMPRISING DC POWER SOURCES TO BE CONNECTED IN PARALLEL OR IN SERIES
    3.
    发明申请
    DC-DC CONVERTER COMPRISING DC POWER SOURCES TO BE CONNECTED IN PARALLEL OR IN SERIES 有权
    直流电源转换器,包括以并联或串联连接的直流电源

    公开(公告)号:US20130134786A1

    公开(公告)日:2013-05-30

    申请号:US13814342

    申请日:2011-09-21

    IPC分类号: H02J1/00

    摘要: The power supply system includes a first DC power source, a second DC power source, and a power converter having a plurality of switching elements and reactors. The power converter is configured to be switchable, by the control of the plurality of switching elements, between a parallel connection mode in which DC voltage conversion is executed with the DC power sources connected in parallel with a power line and a series connection mode in which DC voltage conversion is executed with the DC power sources connected in series with the power line. Each of the switching elements is arranged to be included both in a power conversion path between the first DC power source and the power line PL and a power conversion path between the second DC power source and the power line.

    摘要翻译: 电源系统包括第一直流电源,第二直流电源和具有多个开关元件和电抗器的功率转换器。 电力转换器被配置为通过多个开关元件的控制,在与电力线并联的直流电源执行直流电压转换的并联连接模式和串联连接模式之间可切换,其中, 直流电压转换是与电源线串联连接的直流电源进行的。 每个开关元件被布置成被包括在第一DC电源和电力线PL之间的电力转换路径和第二DC电源与电力线之间的电力转换路径之间。

    STATE ESTIMATING DEVICE OF SECONDARY BATTERY
    5.
    发明申请
    STATE ESTIMATING DEVICE OF SECONDARY BATTERY 有权
    二次电池状态估计装置

    公开(公告)号:US20100153038A1

    公开(公告)日:2010-06-17

    申请号:US12449390

    申请日:2008-03-13

    IPC分类号: G01R31/36 G06F19/00

    摘要: A battery state estimating unit (110) estimates an internal state of a secondary battery according to a battery model equation in every arithmetic cycle, and calculates an SOC based on a result of the estimation. A parameter characteristic map (120) stores a characteristic map based on a result of actual measurement performed in an initial state (in a new state) on a parameter diffusion coefficient (Ds) and a DC resistance (Ra) in the battery model equation. The parameter change rate estimating unit (130) estimates a DC resistance change rate (gr) represented by a ratio of a present DC resistance (Rc) with respect to a new-state parameter value (Ran) by parameter identification based on the battery model equation, using battery data (Tb, Vb and Ib) measured by sensors as well as the new-state parameter value (Ran) of the DC resistance corresponding to the p resent battery state and read from the parameter characteristic map (120).

    摘要翻译: 电池状态估计单元(110)根据每个运算周期中的电池模型方程来估计二次电池的内部状态,并且基于估计结果来计算SOC。 参数特征图(120)基于在初始状态(新状态下)对电池模型方程式中的参数扩散系数(Ds)和直流电阻(Ra)进行的实际测量的结果来存储特性图。 参数变化率估计单元(130)基于电池模型通过参数识别来估计由当前直流电阻(Rc)相对于新状态参数值(Ran)的比率所表示的直流电阻变化率(gr) 方程式,使用由传感器测量的电池数据(Tb,Vb和Ib)以及与参数电池状态对应的直流电阻的新状态参数值(Ran),并从参数特性图(120)读取。

    DEGRADATION DETERMINATION DEVICE AND DEGRADATION DETERMINATION METHOD FOR LITHIUM ION SECONDARY BATTERY
    8.
    发明申请
    DEGRADATION DETERMINATION DEVICE AND DEGRADATION DETERMINATION METHOD FOR LITHIUM ION SECONDARY BATTERY 有权
    用于锂离子二次电池的降解测定装置和降解测定方法

    公开(公告)号:US20130099794A1

    公开(公告)日:2013-04-25

    申请号:US13640551

    申请日:2011-04-12

    IPC分类号: G01R31/36

    摘要: A degradation determination device includes: a measuring unit measuring an open-circuit voltage characteristic indicating an open-circuit voltage variation with respect to a lithium ion secondary battery capacity variation; and a determining unit determining a degradation state due to wear and precipitation of lithium using a parameter for identifying the open-circuit voltage characteristic that substantially coincides with the measured open-circuit voltage characteristic. The parameter includes single electrode capacity retention rates expressed by the expressions (I) positive electrode capacity retention rate=degraded positive electrode capacity/initial positive electrode capacity and (II) negative electrode capacity retention rate=degraded negative electrode capacity/initial negative electrode capacity, and a battery capacity variation expressed by the expression (III) battery capacity variation=degraded negative electrode capacity×shift of a negative electrode composition axis with respect to a positive electrode composition axis.

    摘要翻译: 劣化判定装置包括:测量单元,其测量表示相对于锂离子二次电池容量变化的开路电压变化的开路电压特性; 以及确定单元,其使用用于识别与所测量的开路电压特性基本一致的开路电压特性的参数来确定由于锂的磨损和析出引起的劣化状态。 该参数包括以下表达的单电极容量保持率(I)正极容量保持率=正极容量/初始正极容量降低,(II)负极容量保持率=劣化负极容量/初始负极容量, 和电池容量变化表达式(III)表示的电池容量变化量=负极组合物轴线相对于正极组成轴线的负极容量×负载×偏移。

    DEVICE AND METHOD FOR DETERMINING DETERIORATION OF SECONDARY BATTERY
    9.
    发明申请
    DEVICE AND METHOD FOR DETERMINING DETERIORATION OF SECONDARY BATTERY 有权
    用于确定二次电池检测的装置和方法

    公开(公告)号:US20130030739A1

    公开(公告)日:2013-01-31

    申请号:US13639821

    申请日:2010-04-09

    IPC分类号: G06F19/00

    摘要: A secondary battery is implemented as an assembly of a plurality of battery modules. An ECU calculates a deterioration indicator quantitatively indicating a degree of deterioration of a battery module for each of the plurality of battery modules, and detects as a module to be replaced, a battery module of which deterioration indicator has reached a prescribed replacement level. The ECU further extracts a module to additionally be replaced, which should be replaced simultaneously with the module to be replaced above, from battery modules of which deterioration indicator has not reached the replacement level, among the plurality of battery modules.

    摘要翻译: 二次电池被实现为多个电池模块的组件。 ECU对多个电池模块中的每个电池模块的电池模块的劣化程度进行定量计算,并且将作为要更换的模块进行检测,其中劣化指示器已经达到规定的替换电平。 在多个电池模块中,ECU还提取另外被更换的模块,其与上述待更换的模块同时更换,其劣化指示器尚未达到更换水平的电池模块。

    STATE ESTIMATING DEVICE FOR SECONDARY BATTERY
    10.
    发明申请
    STATE ESTIMATING DEVICE FOR SECONDARY BATTERY 有权
    用于二次电池的状态估计装置

    公开(公告)号:US20110161025A1

    公开(公告)日:2011-06-30

    申请号:US13061008

    申请日:2009-08-28

    IPC分类号: G01R31/36

    摘要: A battery state estimating unit estimates an internal state of a secondary battery in accordance with a battery model equation in every arithmetic cycle, and estimates a charging rate and a battery current based on a result of the estimation. A parameter estimating unit obtains a battery current measured by a sensor as well as the charging rate and the battery current estimated by the battery state estimating unit. The parameter estimating unit estimates a capacity deterioration parameter such that a rate of change in difference (estimation error) between a summed value of an actual current and a summed value of an estimated current with respect to the charging rate is minimized. A result obtained by estimating the capacity deterioration parameter is reflected in the battery model by the battery state estimating unit.

    摘要翻译: 电池状态估计单元根据每个算术循环中的电池模型等式来估计二次电池的内部状态,并且基于估计结果来估计充电率和电池电流。 参数估计单元获得由传感器测量的电池电流以及由电池状态估计单元估计的充电率和电池电流。 参数估计单元估计容量劣化参数,使得实际电流的求和值与估计电流的相加值相对于充电率之间的差值(估计误差)的变化率最小化。 通过估计容量劣化参数获得的结果由电池状态估计单元反映在电池模型中。