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    CONTROL SYSTEM FOR SECONDARY BATTERY, ELECTRICALLY POWERED VEHICLE HAVING SAME, AND METHOD FOR CONTROLLING SECONDARY BATTERY
    24.
    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

    Cooling system
    26.
    发明授权
    Cooling system 有权
    冷却系统

    公开(公告)号：US07628125B2

    公开(公告)日：2009-12-08

    申请号：US10584856

    申请日：2005-01-31

    申请人： Keiji Kaita ,  Shinichi Abe

    发明人： Keiji Kaita ,  Shinichi Abe

    IPC分类号： F01P1/06 ,  F01P3/20

    CPC分类号： F01P3/20 ,  B60K1/02 ,  B60K11/02 ,  B60K2001/003 ,  F01P7/165 ,  F01P2050/24 ,  F02D13/06 ,  Y02T10/18

    摘要： A cooling system includes a first cooling system in which coolant is supplied from a radiator to a motor so as to cool the motor, and then the coolant is supplied to banks of an engine through a circulation passage and split flow passages so as to cool the engine; and a second cooling system in which the coolant delivered from the radiator through a branch passage is further cooled by a radiator, and the cooled coolant is supplied to a drive circuit so as to cool the drive circuit. With this configuration, it is possible to efficiently cool the motor, the engine, and the drive circuit whose suitable operating temperatures are different from each other, and to make the configuration of the cooling system simple.

    摘要翻译： 冷却系统包括第一冷却系统，其中冷却剂从散热器供给到电动机以冷却电动机，然后通过循环通道和分流流路将冷却剂供应到发动机的组，以冷却 发动机; 以及第二冷却系统，其中通过分支通道从散热器输送的冷却剂由散热器进一步冷却，并且将冷却的冷却剂供应到驱动电路以冷却驱动电路。 通过该结构，能够有效地冷却电动机，发动机和适当的工作温度不同的驱动电路，并且使冷却系统的结构简单。

    Electrical storage system
    27.
    发明授权
    Electrical storage system 有权

    公开(公告)号：US10096992B2

    公开(公告)日：2018-10-09

    申请号：US14431601

    申请日：2013-11-29

    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 ,  H02H7/18 ,  B60L3/04

    摘要： An electrical storage system includes an electrical storage device (10); a relay (SMR-B, SMR-G, SMR-P) switching between on/off states; a current interruption circuit (60) interrupting energization of the electrical storage device by causing the relay to switch from the on state to the off state; and a controller (30) executing drive control over the relay. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating overcharging/overdischarging of any one electrical storage block 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 the on state to the off state upon reception of an output signal of the latch circuit. The controller determines an energization state of the electrical storage device by executing control for turning on the relay while control for causing the alarm circuit to output the alarm signal is being executed.

    Vehicle
    28.
    发明授权
    Vehicle 有权
    车辆

    公开(公告)号：US09555705B2

    公开(公告)日：2017-01-31

    申请号：US14115798

    申请日：2011-05-12

    申请人： Keiji Kaita ,  Takeshi Hoshiba ,  Takahiko Hirasawa

    发明人： Keiji Kaita ,  Takeshi Hoshiba ,  Takahiko Hirasawa

    IPC分类号： B60K28/14 ,  B60T7/22 ,  B60W30/08 ,  G08G1/16

    CPC分类号： B60K28/14 ,  B60T7/22 ,  B60W30/08 ,  B60W30/18036 ,  B60W50/12 ,  B60W2030/082 ,  B60W2540/103 ,  B60W2540/106 ,  G08G1/162

    摘要： An ECU includes a collision determination unit, a condition determination unit, and an output suppression unit. The collision determination unit monitors an acceleration detected by a collision sensor, and determines that a vehicle collision has occurred when the acceleration is greater than a predetermined value. The condition determination unit determines whether or not a vehicular speed absolute value is smaller than a threshold vehicular speed in a determination period lasting from the determination of collision for a predetermined time. The output suppression unit suppresses an output of a vehicle driving force when the vehicular speed absolute value is smaller than the threshold vehicular speed in the determination period.

    摘要翻译： ECU包括碰撞确定单元，条件确定单元和输出抑制单元。 碰撞确定单元监视由碰撞传感器检测到的加速度，并且当加速度大于预定值时确定已经发生车辆碰撞。 条件确定单元在从预定时间的碰撞确定持续的确定时段中确定车辆速度绝对值是否小于阈值车辆速度。 输出抑制单元在车辆速度绝对值小于判定期间的阈值车速时，抑制车辆驱动力的输出。

    ELECTRICAL STORAGE SYSTEM
    29.
    发明申请
    ELECTRICAL STORAGE SYSTEM 审中-公开
    电气存储系统

    公开(公告)号：US20150255979A1

    公开(公告)日：2015-09-10

    申请号：US14431601

    申请日：2013-11-29

    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： H02H7/18

    CPC分类号： H02H7/18 ,  B60L3/04 ,  B60L2240/547 ,  H02J7/0021 ,  H02J7/0031 ,  H02J2007/0037 ,  Y02T10/7055

    摘要： An electrical storage system includes an electrical storage device (10); a relay (SMR-B, SMR-G, SMR-P) switching between on/off states; a current interruption circuit (60) interrupting energization of the electrical storage device by causing the relay to switch from the on state to the off state; and a controller (30) executing drive control over the relay. The current interruption circuit includes an alarm circuit (63) outputting an alarm signal indicating overcharging/overdischarging of any one electrical storage block 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 the on state to the off state upon reception of an output signal of the latch circuit. The controller determines an energization state of the electrical storage device by executing control for turning on the relay while control for causing the alarm circuit to output the alarm signal is being executed.

    摘要翻译： 电存储系统包括电存储装置（10）; 继电器（SMR-B，SMR-G，SMR-P）在开/关状态之间切换; 电流中断电路（60）通过使继电器从接通状态切换到断开状态来中断蓄电装置的通电; 以及执行对所述继电器的驱动控制的控制器（30）。 电流中断电路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的过充电/过放电的报警信号的报警电路; 保持警报信号的锁存电路（64）; 以及晶体管（68），其在接收到所述锁存电路的输出信号时使所述继电器从导通状态切换到断开状态。 控制器通过执行用于接通继电器的控制来确定蓄电装置的通电状态，同时执行用于使报警电路输出报警信号的控制。

    SECONDARY BATTERY TEMPERATURE-ESTIMATING APPARATUS AND METHOD
    30.
    发明申请
    SECONDARY BATTERY TEMPERATURE-ESTIMATING APPARATUS AND METHOD 有权
    二次电池温度估算装置及方法

    公开(公告)号：US20120099618A1

    公开(公告)日：2012-04-26

    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

    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）。