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    CONTROL SYSTEM FOR SECONDARY BATTERY, ELECTRICALLY POWERED VEHICLE HAVING SAME, AND METHOD FOR CONTROLLING SECONDARY BATTERY
    5.
    发明申请
    CONTROL SYSTEM FOR SECONDARY BATTERY, ELECTRICALLY POWERED VEHICLE HAVING SAME, AND METHOD FOR CONTROLLING SECONDARY BATTERY 有权
    二次电池控制系统，具有电动车辆的电动车辆及其二次电池控制方法

    公开(公告)号：US20100204861A1

    公开(公告)日：2010-08-12

    申请号：US12678659

    申请日：2008-09-25

    申请人： Keiji Kaita ,  Teruo Ishishita ,  Shinobu Okayama ,  Yuji Nishi ,  Daisuke Kuroda

    发明人： Keiji Kaita ,  Teruo Ishishita ,  Shinobu Okayama ,  Yuji Nishi ,  Daisuke Kuroda

    IPC分类号： H01M10/44 ,  H02J7/00 ,  B60L3/00

    CPC分类号： H01M10/484 ,  B60L11/1851 ,  B60L11/1861 ,  G01R31/3658 ,  H01M10/0525 ,  H02J7/0088 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

    摘要： During use of a secondary battery, a concentration change ratio estimating unit estimates a ratio of change in electrolytic solution concentration based on a charging/discharging current. According to the estimated ratio of change, a concentration estimated value calculating unit sequentially calculates an electrolytic solution concentration estimated value during the use of the secondary battery. Based on the estimated electrolytic solution concentration estimated value, a determining unit determines whether or not the electrolytic solution concentration is within a normal range. When the electrolytic solution concentration is outside the normal range, a charging/discharging condition modifying unit modifies a charging/discharging condition of the secondary battery to bring the electrolytic solution concentration back to the normal range, thus avoiding a tendency of overcharge or a tendency of overdischarge.

    摘要翻译： 在二次电池的使用期间，浓度变化率推定部基于充放电电流来估计电解液浓度的变化率。 根据估计的变化率，浓度估计值计算单元在二次电池的使用期间依次计算电解液浓度估计值。 基于估计的电解液浓度估计值，确定单元确定电解液浓度是否在正常范围内。 当电解液浓度超出正常范围时，充放电条件修改单元改变二次电池的充电/放电状态，使电解液浓度恢复到正常范围，从而避免过充电或倾向于 过度放电

    Control system for secondary battery, electrically powered vehicle having same, and method for controlling secondary battery
    6.
    发明授权
    Control system for secondary battery, electrically powered vehicle having same, and method for controlling secondary battery 有权
    二次电池控制系统，具有该二次电池的电动车辆及二次电池的控制方法

    公开(公告)号：US08229614B2

    公开(公告)日：2012-07-24

    申请号：US12678659

    申请日：2008-09-25

    申请人： Keiji Kaita ,  Teruo Ishishita ,  Shinobu Okayama ,  Yuji Nishi ,  Daisuke Kuroda

    发明人： Keiji Kaita ,  Teruo Ishishita ,  Shinobu Okayama ,  Yuji Nishi ,  Daisuke Kuroda

    IPC分类号： H01M10/44 ,  H02J7/00 ,  B60L3/00

    CPC分类号： H01M10/484 ,  B60L11/1851 ,  B60L11/1861 ,  G01R31/3658 ,  H01M10/0525 ,  H02J7/0088 ,  Y02E60/122 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

    摘要： During use of a secondary battery, a concentration change ratio estimating unit estimates a ratio of change in electrolytic solution concentration based on a charging/discharging current. According to the estimated ratio of change, a concentration estimated value calculating unit sequentially calculates an electrolytic solution concentration estimated value during the use of the secondary battery. Based on the estimated electrolytic solution concentration estimated value, a determining unit determines whether or not the electrolytic solution concentration is within a normal range. When the electrolytic solution concentration is outside the normal range, a charging/discharging condition modifying unit modifies a charging/discharging condition of the secondary battery to bring the electrolytic solution concentration back to the normal range, thus avoiding a tendency of overcharge or a tendency of overdischarge.

    摘要翻译： 在二次电池的使用期间，浓度变化率推定部基于充放电电流来估计电解液浓度的变化率。 根据估计的变化率，浓度估计值计算单元在二次电池的使用期间依次计算电解液浓度估计值。 基于估计的电解液浓度估计值，确定单元确定电解液浓度是否在正常范围内。 当电解液浓度超出正常范围时，充放电条件修改单元改变二次电池的充电/放电状态，使电解液浓度恢复到正常范围，从而避免过充电或倾向于 过度放电

    CONTROL APPARATUS AND CONTROL METHOD FOR SECONDARY BATTERY
    8.
    发明申请
    CONTROL APPARATUS AND CONTROL METHOD FOR SECONDARY BATTERY 审中-公开
    二次电池控制装置及控制方法

    公开(公告)号：US20100241376A1

    公开(公告)日：2010-09-23

    申请号：US12741933

    申请日：2008-09-17

    申请人： Yoshiaki Kikuchi ,  Teruo Ishishita ,  Yuji Nishi ,  Daisuke Kuroda

    发明人： Yoshiaki Kikuchi ,  Teruo Ishishita ,  Yuji Nishi ,  Daisuke Kuroda

    IPC分类号： G01R31/36

    CPC分类号： H01M10/052 ,  B60K1/02 ,  B60K6/365 ,  B60K6/445 ,  B60L3/0046 ,  B60L3/0053 ,  B60L58/12 ,  B60L58/24 ,  B60W2510/244 ,  B60W2510/246 ,  G01R31/392 ,  H01M10/425 ,  H01M10/48 ,  H01M10/486 ,  Y02E60/122 ,  Y02T10/6239 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T90/34

    摘要： An ECU calculates an evaluation value decrease amount D(−) in response to a reduction of unevenness of lithium ion concentration caused by diffusion of lithium ions resulting from a lapse of one cycle time ΔT, calculates an evaluation value increase amount D(+) in response to an increase of the unevenness of the lithium ion concentration caused by discharging during a lapse of one cycle time ΔT, and calculates a present value D(N) of a battery deterioration evaluation value D due to high-rate discharging, as a previous value D(N−1)−evaluation value decrease amount D(−)+evaluation value increase amount D(+). If battery deterioration evaluation value D exceeds a predetermined target value E, the ECU sets a discharging power limit value WOUT that is a limit value of electric power to be discharged from a battery, to a value lower than a maximum value W(MAX).

    摘要翻译： ECU响应于由于经过一个循环时间而产生的锂离子的扩散引起的锂离子浓度的不均匀性的降低，计算评价值减少量D（ - ），并且，计算评价值增加量D（+ ）响应于在一个周期时间＆Dgr; T之间由放电引起的锂离子浓度的不均匀性的增加，并且计算由于高速率放电而导致的电池劣化评估值D的当前值D（N） ，作为先前值D（N-1） - 评价值减少量D（ - ）+评价值增加量D（+）。 如果电池劣化评估值D超过预定目标值E，则ECU将作为从电池放电的电力的限制值的放电功率限制值WOUT设定为低于最大值W（MAX）的值。

    Electrical storage system
    9.
    发明授权
    Electrical storage system 有权
    电气存储系统

    公开(公告)号：US09577458B2

    公开(公告)日：2017-02-21

    申请号：US14425492

    申请日：2013-11-27

    申请人： Keiji Kaita ,  Yuji Nishi ,  Yukinari Tanabe ,  Hiromasa Tanaka ,  Motoi Ito

    发明人： Keiji Kaita ,  Yuji Nishi ,  Yukinari Tanabe ,  Hiromasa Tanaka ,  Motoi Ito

    IPC分类号： H02J7/00 ,  B60L11/18 ,  H02J7/34

    CPC分类号： H02J7/0072 ,  B60L11/1861 ,  H02J7/0021 ,  H02J7/0026 ,  H02J7/0031 ,  H02J7/345 ,  Y02T10/7005 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7055

    摘要： An electrical storage system includes: an electrical storage device (10) including serially connected electrical storage blocks; a relay (SMR-B, SMR-G) switching a connection state between the electrical storage device and a load; a controller (30, 34) controlling the relay; and a current interruption circuit (60) interrupting energization of the electrical storage device. The current interruption circuit (60) includes an alarm circuit (63) outputting an alarm signal indicating that any one electrical storage block is overcharged or overdischarged by comparing a voltage value of each electrical storage block with a threshold; a latch circuit (64) retaining the alarm signal; and a transistor (68) causing the relay to switch from an on state to an off state upon reception of a latch circuit output signal. The controller determines an energization state of the electrical storage device after executing control for causing the alarm circuit to output the alarm signal by changing the voltage value or the threshold.

    摘要翻译： 电气存储系统包括：电气存储装置（10），包括串联连接的电存储块; 继电器（SMR-B，SMR-G）切换蓄电装置和负载之间的连接状态; 控制所述继电器的控制器（30,34）; 以及中断电气存储装置的通电的电流中断电路（60）。 电流中断电路（60）包括：通过将每个电存储块的电压值与阈值进行比较来输出指示任何一个电存储块被过充电或过放电的报警信号（63）; 保持警报信号的锁存电路（64）; 以及晶体管（68），其在接收到锁存电路输出信号时使得继电器从接通状态切换到断开状态。 控制器在执行使报警电路通过改变电压值或阈值来输出报警信号的控制之后，确定蓄电装置的通电状态。

    Secondary battery temperature-estimating apparatus and method
    10.
    发明授权
    Secondary battery temperature-estimating apparatus and method 有权
    二次电池温度估计装置及方法

    公开(公告)号：US08684596B2

    公开(公告)日：2014-04-01

    申请号：US13382736

    申请日：2010-07-07

    申请人： Yuji Nishi ,  Hidenori Takahashi ,  Masatoshi Tazawa ,  Masanobu Matsusaka ,  Keiji Kaita

    发明人： Yuji Nishi ,  Hidenori Takahashi ,  Masatoshi Tazawa ,  Masanobu Matsusaka ,  Keiji Kaita

    IPC分类号： G01K13/00 ,  G01K1/00

    CPC分类号： G01K13/10 ,  G01K7/42 ,  G01R31/3624 ,  G01R31/3662 ,  H01M10/486

    摘要： An alternating current impedance-estimating section (106) estimates an alternating current impedance (Rh) of the secondary battery based on electric current (I) and voltage (V) of the secondary battery detected when a ripple generating section causes a ripple current to flow in the secondary battery. A temperature estimating section (108) estimates the temperature (T) of the secondary battery based on the alternating current impedance (Rh) estimated by the alternating current impedance-estimating section (106) with the use of the relation, obtained in advance, between the temperature (T) of the secondary battery and the alternating current impedance (Rh) of the secondary battery at a ripple frequency.

    摘要翻译： 交流阻抗估计部（106）基于电流（I）和纹波产生部使纹波电流流动时检测到的二次电池的电压（V），估计二次电池的交流阻抗（Rh） 在二次电池中。 温度推定部（108）基于由交流阻抗估计部（106）估计的交流阻抗（Rh），使用预先获得的关系，估计二次电池的温度（T） 二次电池的温度（T）和二次电池的波动频率的交流阻抗（Rh）。