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    • 39. 发明申请
    • Battery Control Device And Hybrid Forklift Truck Equipped With The Device
    • 电池控制装置和混合动力叉车配备装置
    • US20090051322A1
    • 2009-02-26
    • US12087463
    • 2007-09-07
    • Yutaka KubotaTakao SakuraiShunsuke Kamei
    • Yutaka KubotaTakao SakuraiShunsuke Kamei
    • H02J7/00
    • B60W20/13B60K6/46B60L11/123B60L11/1861B60L2240/80B60W10/06B60W10/08B60W10/24B60W10/26B60W20/00B60W2050/0002B60W2050/0063B60W2510/244B60W2540/06B60Y2200/15H01M10/48Y02T10/6217Y02T10/6286Y02T10/7005Y02T10/7044Y02T10/705Y02T10/7077
    • A battery control device and a hybrid forklift truck provided with an engine and battery-driven motor generator and equipped with the device with which control is performed so that excessive exhaustion or charging of the battery does not occur in operation of the forklift truck.SOC of the battery is determined from an established relationship between battery voltage and SOC when battery current is zero for at least a predetermined time period and SOC is also determined from an established relationship between battery voltage, current and SOC when discharge current is constant for at least a predetermined time period. SOC of the battery is revised on every chance battery current is zero or constant for at least the predetermined time period, and SOC at any point of time in operation of the forklift truck is estimated by integrating battery current from the time point of SOC revision and subtracting the integrated current from said revised SOP. Allocation of drive power of the engine and motor generator is performed in accordance with an established relationship between permissible discharge and charge current and SOC of the battery so that excessive exhaustion or excessive charging of the battery does not occur.
    • 一种电池控制装置和配备有发动机和电池驱动的电动发电机的混合动力叉车,并配备有执行控制的装置,使得在叉车的操作中不会发生电池的过度耗尽或充电。 蓄电池的SOC根据蓄电池电流为零时的蓄电池电压和SOC之间的确定关系,至少在规定的时间内确定,并且SOC也根据蓄电池电压,电流与SOC之间的关系确定, 至少预定的时间段。 电池的SOC在每次机会电池电流为零或恒定至少预定时间段时进行修正,并且通过将来自SOC修订的时间点的电池电流积分在一起来计算叉车的任何时间点的SOC, 从所修订的SOP中减去综合电流。 发动机和电动发电机的驱动功率的分配根据容许放电与充电电流和电池的SOC之间的确定的关系进行,从而不会发生电池的过度耗尽或过度充电。