State estimating device of secondary battery
    1.
    发明授权
    State estimating device of secondary battery 有权
    二次电池状态估计装置

    公开(公告)号:US08108161B2

    公开(公告)日:2012-01-31

    申请号:US12449390

    申请日:2008-03-13

    IPC分类号: G01R31/36

    摘要: A battery state estimating unit 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 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 and a DC resistance in the battery model equation. The parameter change rate estimating unit estimates a DC resistance change rate represented by a ratio of a present DC resistance with respect to a new-state parameter value by parameter identification based on the battery model equation, using battery data measured by sensors as well as the new-state parameter value of the DC resistance corresponding to the present battery state and read from the parameter characteristic map.

    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计算SOC。 参数特性图基于在初始状态(新状态下)对电池模型方程中的参数扩散系数和直流电阻进行的实际测量的结果存储特性图。 参数变化率估计单元使用由传感器测量的电池数据以及基于电池模型方程的参数识别来估计当前DC电阻相对于新状态参数值的比率的直流电阻变化率,以及 对应于当前电池状态的直流电阻的新状态参数值,并从参数特性图中读取。

    STATE ESTIMATING DEVICE OF SECONDARY BATTERY
    2.
    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。

    STATE ESTIMATING DEVICE FOR SECONDARY BATTERY
    3.
    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。

    State estimating device for secondary battery
    4.
    发明授权
    State estimating device for secondary battery 有权
    二次电池状态估计装置

    公开(公告)号:US08615372B2

    公开(公告)日:2013-12-24

    申请号:US13061008

    申请日:2009-08-28

    IPC分类号: G06F19/00

    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。

    Device for estimating road friction state
    9.
    发明授权
    Device for estimating road friction state 失效
    用于估计道路摩擦状态的装置

    公开(公告)号:US06522968B1

    公开(公告)日:2003-02-18

    申请号:US09694681

    申请日:2000-10-24

    IPC分类号: B60T800

    CPC分类号: B60T8/172 B60T2210/12

    摘要: A device for estimating a road friction state in which a friction state of a wheel with respect to a road surface can be estimated accurately. A bandpass filter extracts, from a wheel speed signal detected by a wheel speed detecting unit, a portion of the wheel speed signal in a predetermined range which includes a torsion resonance point at which a frequency is greater than a low frequency regions. A vibration level computing unit computes a vibration level of the wheel speed signal. A road friction state estimating unit estimates the friction state of the wheel with respect to the road surface on the basis of a vibration level computed by the vibration level computing unit and an estimated value of a road &mgr; slope computed by a &mgr; slope computing unit, and on the basis of a relationship between the two determined for each road surface state.

    摘要翻译: 能够准确地估计车轮相对于路面的摩擦状态的道路摩擦状态估计装置。 带通滤波器从由车轮速度检测单元检测的车轮速度信号中提取车轮速度信号的一部分在包括频率大于低频区域的扭转共振点的预定范围内。 振动级计算单元计算车轮速度信号的振动水平。 道路摩擦状态估计单元基于由振动级计算单元计算的振动水平和由μ坡度计算单元计算出的道路μa斜率的估计值来估计车轮相对于路面的摩擦状态, 并且基于对于每个路面状态确定的两者之间的关系。

    Oil separator
    10.
    发明授权
    Oil separator 有权
    油分离器

    公开(公告)号:US08945266B2

    公开(公告)日:2015-02-03

    申请号:US13296376

    申请日:2011-11-15

    IPC分类号: B01D45/08 F25B43/02

    摘要: An oil separator has a container main body and an flow channel. A partition wall member faces the opening of the flow channel and extends along a wall of the container main body. An upper end member seals the space between the upper end of the partition wall member and the container main body. A side end member seals a space between one side end of the partition wall member and the wall of the container main body. A gap between the partition wall member and the wall of the container main body is narrower than an inner diameter of the flow channel and is largest at an open side end. An outer circumference of the partition wall member is longer than half of the inner diameter of the flow channel and shorter than half of the circumferential length of the inner wall of the container main body.

    摘要翻译: 油分离器具有容器主体和流路。 分隔壁构件面向流动通道的开口并且沿着容器主体的壁延伸。 上端构件密封隔壁构件的上端和容器主体之间的空间。 侧端构件密封隔壁构件的一侧端与容器主体的壁之间的空间。 分隔壁构件与容器主体的壁之间的间隙比流路的内径窄,在开口侧端部最大。 分隔壁构件的外周长度大于流路的内径的一半,并且短于容器主体的内壁的周长的一半。