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    Secondary battery control device
    3.
    发明公开
    Secondary battery control device 有权
    二次电池控制装置

    公开(公告)号：EP0915552A3

    公开(公告)日：2000-07-12

    申请号：EP98119230.5

    申请日：1998-10-12

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kikuchi, Yoshiaki ,  Asakawa, Fumihiko ,  Nakanishi, Toshiaki ,  Kimura, Tadao

    IPC分类号： H02J7/00

    CPC分类号： H02J7/0026 ,  B60L3/003 ,  B60L3/04 ,  B60L2240/545 ,  B60L2240/547 ,  Y02T10/7055

    摘要： The voltage of each of battery block (50-1∼50-n) of a battery (50) is detected by a voltage sensor (70-1∼70-n). Further, the temperature of the battery (50) is detected by a temperature sensor (74). These detected values are supplied to a detecting section (80) of a battery ECU (68). A judging section (82) reads out the threshold value of the voltage stored in a memory (84), on the basis of the detected values of temperature, and compares the threshold value of the voltage with the detected voltage of each of the battery blocks (50-1∼50-n). Then, if at least any one is less than the threshold value of the voltage, a relay (76) is turned off. Furthermore, the threshold value of the voltage is arranged to be the voltage at the moment when the value of the current is suddenly increased by the discharge of a constant current of the battery.

    摘要翻译： 由电压传感器（70-1〜70-n）检测电池（50）的每个电池块（50-1〜50-n）的电压。 此外，电池（50）的温度由温度传感器（74）检测。 这些检测值被提供给电池ECU（68）的检测部分（80）。 判定部（82）基于检测到的温度值，读出存储在存储器（84）中的电压的阈值，并将该电压的阈值与各电池块的检测电压进行比较 （50-1~50-N）。 然后，如果至少有一个小于电压的阈值，则继电器（76）断开。 此外，电压的阈值被设置为当电流的值通过电池的恒定电流的放电而突然增加时的电压。

    Battery charge level detecting device
    9.
    发明公开
    Battery charge level detecting device 有权
    Einrichtung zur Batterieladungsniveauermittlung

    公开(公告)号：EP0908737A3

    公开(公告)日：2000-07-12

    申请号：EP98119246.1

    申请日：1998-10-12

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kikuchi, Yoshiaki ,  Sekimori, Toshiyuki ,  Asakawa, Fumihiko ,  Shoji, Yoshimi ,  Tojima, Kazuo ,  Uchida, Masatoshi ,  Ukita, Susumi ,  Kuno, Hiromichi

    IPC分类号： G01R31/36

    CPC分类号： G01R31/3624 ,  G01R31/3648

    摘要： In the area of the charge level of 20 ∼ 80% where the charge level of a battery (50) does not appear in the terminal voltage of the battery, the battery ECU (68) estimates charge level by integrating the currents of the charge and discharge of the battery. When the engine ECU (46) detects that the ignition key is turned on, the motor generators (26, 28) are driven by the engine (10), and the generated electric power is accumulated in the battery (50). When the area where the charge level appears in the terminal voltage, is reached, the calculation of the charge level is performed from the current and voltage at that time. When this charge level has reached 80%, the calibration of said estimated charge level is performed by this value. Furthermore, it is also possible for this calibration to be prohibited when a heavy current is flowing and the error may become large in the calculation of the charge level. By the above mentioned methods, the charge level of a battery can accurately be detected.

    摘要翻译： 在电池（50）的充电水平未出现在电池的端子电压中的充电水平为20〜80％的区域中，电池ECU（68）通过对充电电流进行积分来估计充电水平 放电电池。 当发动机ECU（46）检测到点火钥匙被接通时，电动发电机（26,28）由发动机（10）驱动，发电电力蓄积在电池（50）中。 当达到终端电压出现充电电平的区域时，从当时的电流和电压进行充电电平的计算。 当该电荷水平达到80％时，通过该值来执行所述估计电荷水平的校准。 此外，当大电流流动时，也可能禁止该校准，并且在计算电荷水平时误差可能变大。 通过上述方法，可以准确地检测电池的充电水平。