Method for determining an end of discharge voltage for a secondary battery
    5.
    发明授权
    Method for determining an end of discharge voltage for a secondary battery 有权
    用于确定二次电池的放电电压结束的方法

    公开(公告)号:US06265877B1

    公开(公告)日:2001-07-24

    申请号:US09308447

    申请日:1999-06-11

    IPC分类号: G01N27416

    CPC分类号: H01M10/48 H01M10/30

    摘要: Method for determining a determination voltage (end of discharge voltage) of a secondary battery having a nickel-hydroxide positive electrode based on the state of charge of the battery. The end of discharge voltage is determined in consideration of the voltages when the state of charge reaches a permissible lower limit after first and subsequent discharges of the battery. The voltage at which the state of charge reaches the lower limit for discharges after the first discharge gradually decreases due to a memory effect. As a result, the end of discharge voltage is lower than the voltage at which the state of charge reaches the lower limit after the first discharge.

    摘要翻译: 用于根据电池的充电状态来确定具有氢氧化镍正极的二次电池的确定电压(放电电压结束)的方法。 放电电压的结束考虑到在电池的第一次和以后的放电之后的充电状态达到允许的下限时的电压。 由于记忆效应,第一次放电后的充电状态下的放电电压下降的电压逐渐降低。 结果,放电电压的结束低于在第一次放电之后充电状态达到下限的电压。

    Device and method for controlling charging of secondary battery
    8.
    发明授权
    Device and method for controlling charging of secondary battery 有权
    二次电池充电控制装置及方法

    公开(公告)号:US06380717B2

    公开(公告)日:2002-04-30

    申请号:US09802267

    申请日:2001-03-08

    IPC分类号: H01M1044

    摘要: A device and method is provided that can detect overcharge reliably by separating heat generated by internal resistance and heat chemically generated upon overcharging in a secondary battery. Based on the temperature of the secondary battery detected every first predetermined time by a battery temperature detection section, a temperature gradient operation section calculates a temperature gradient indicating a temperature increase per unit time for every second predetermined time that is longer than the first predetermined time. When a temperature gradient determination section determines that the temperature gradient is larger than a predetermined temperature gradient threshold, which is preset according to the charged state of the secondary battery, N times in a row (where N is a natural number), a fully charged state of the secondary battery is detected.

    摘要翻译: 提供了一种能够通过分离由二次电池中的过度充电产生的内部电阻和化学产生的热量而可靠地检测过充电的装置和方法。 基于电池温度检测部在每第一规定时间检测到的二次电池的温度的情况下,温度梯度运算部根据比第一规定时间长的第二规定时间,计算表示每单位时间的温度上升的温度梯度。 当温度梯度确定部分确定温度梯度大于根据二次电池的充电状态预设的预定温度梯度阈值时,N次连续(其中N是自然数),满充电 检测到二次电池的状态。

    Electric vehicle
    9.
    发明授权
    Electric vehicle 失效
    电动车

    公开(公告)号:US07404459B2

    公开(公告)日:2008-07-29

    申请号:US11127384

    申请日:2005-05-12

    IPC分类号: B60K1/00

    摘要: A positive side main contactor serving as a contact switching device on the positive side, which is connected between a positive electrode terminal of a battery pack and a high potential input terminal of an inverter, and a negative side main contactor serving as a contact switching device on the negative side, which is connected between a negative electrode terminal of the battery pack and a low potential input terminal of the inverter, are arranged so that moving contacts of these are moved forward and backward in directions that are different from each other, e.g. by 90 degrees. Thus, a situation in which the two main contactors are simultaneously turned ON upon external impact can be avoided, and consequently, it is possible to achieve the same impact resistance as was previously possible with a smaller spring force than was previously required. Therefore, it is possible, for example, to reduce the number of turns of the winding in an electromagnetic coil of each of the main contactors or to reduce the winding diameter. The size and the cost of the contact switching device are reduced while maintaining reliability.

    摘要翻译: 用作阳极侧的接触开关装置的正侧主接触器连接在电池组的正极端子和逆变器的高电位输入端子之间,负极侧主接触器用作接触开关装置 连接在电池组的负极端子和逆变器的低电位输入端子之间的负极侧被布置成使得它们的移动触点在彼此不同的方向上向前和向后移动,例如 90度。 因此,可以避免两个主接触器在外部冲击时同时接通的情况,因此,与先前所需的弹簧力相比,可以获得与之前相同的抗冲击能力。 因此,例如可以减少每个主接触器的电磁线圈中的绕组匝数或减小绕组直径。 在保持可靠性的同时减小接触开关装置的尺寸和成本。

    Electric vehicle
    10.
    发明申请
    Electric vehicle 失效
    电动车

    公开(公告)号:US20050253460A1

    公开(公告)日:2005-11-17

    申请号:US11127384

    申请日:2005-05-12

    摘要: A positive side main contactor serving as a contact switching device on the positive side, which is connected between a positive electrode terminal of a battery pack and a high potential input terminal of an inverter, and a negative side main contactor serving as a contact switching device on the negative side, which is connected between a negative electrode terminal of the battery pack and a low potential input terminal of the inverter, are arranged so that moving contacts of these are moved forward and backward in directions that are different from each other, e.g. by 90 degrees. Thus, a situation in which the two main contactors are simultaneously turned ON upon external impact can be avoided, and consequently, it is possible to achieve the same impact resistance as was previously possible with a smaller spring force than was previously required. Therefore, it is possible, for example, to reduce the number of turns of the winding in an electromagnetic coil of each of the main contactors or to reduce the winding diameter. The size and the cost of the contact switching device are reduced while maintaining reliability.

    摘要翻译: 用作阳极侧的接触开关装置的正侧主接触器连接在电池组的正极端子和逆变器的高电位输入端子之间,负极侧主接触器用作接触开关装置 连接在电池组的负极端子和逆变器的低电位输入端子之间的负极侧被布置成使得它们的移动触点在彼此不同的方向上向前和向后移动,例如 90度。 因此,可以避免两个主接触器在外部冲击时同时接通的情况,因此,与先前所需的弹簧力相比,可以获得与先前可能的相同的抗冲击性。 因此,例如可以减少每个主接触器的电磁线圈中的绕组匝数或减小绕组直径。 在保持可靠性的同时减小接触开关装置的尺寸和成本。