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发明公开
CN106476598A 电池系统 有权

电池系统
摘要：
本发明提供一种既能防止作为蓄电装置的电池组的过放电又能使利用蓄电装置的电力实现的行驶距离的延长的电池系统。ECU算出与电动发电机授受电力的蓄电装置的SOC作为车辆SOC，在车辆SOC降低到切换值以前选择CD(电力消费)模式，在车辆SOC降低到切换值的情况下从CD模式向CS(电力保持)模式切换。蓄电装置是包括串联连接的多个电池单元的电池组。ECU在多个电池单元的SOC中的最大值与最小值的平均值比切换值大的情况下，将比平均值大的SOC(A)作为车辆SOC，在平均值比切换值小的情况下，将比平均值小的SOC(B)作为车辆SOC。切换值被设定为比车辆SOC的上限值与下限值的中心值低的值。
摘要（英）：

The invention provides a battery system for preventing overcharge of a battery pack and prolonging travel distance by using electric power of a power storage device. An ECU calculates SCO received by an electric power as a vechicle SOC, CD (power consumption) before the vehicle SOC is reduced to a switching value, CD mode is switched to CS (power holding) mode when the vehicle SOC is reduced to the switching value. The power storage device comprises a battery which compries multiple cells which are connected in series connection. ECU empolys SOC (A) which is larger than average value is used as the vehicle SOC, when the average value of maximum value and minimum value of SOC in multiple cell units is larger than the switching value, and the SOC (B) which is smaller than the average value is used as the vehicle SOC. The switching value is set as a value which is lower than the center value of the upper and lower value of the vehicle SOC.

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