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1. 发明授权

US07593823B2 Method and device for determining state of battery, and battery power supply system therewith 有权
标题翻译：用于确定电池状态的方法和装置及其电池供电系统
公开(公告)号：US07593823B2
公开(公告)日：2009-09-22
申请号：US11934934
申请日：2007-11-05
申请人： Noriyasu Iwane , Keiko Chikazawa , Keisuke Morii
发明人： Noriyasu Iwane , Keiko Chikazawa , Keisuke Morii
IPC分类号： G06F19/00
CPC分类号： G01R31/3679 , G01R31/3662 , G01R31/3675
摘要： Coefficients A and B are calculated from the measured temperature and the measured state of charge. Next, a response voltage Vc is calculated by substituting the measured internal impedance X into a response-voltage correlation equation. Besides, by comparing the response voltage Vc with a predetermined threshold V0, if Vc is bigger than or equal to V0, the battery is determined as normal. By substituting the measured values of internal impedance, temperature, and SOC into the internal impedance calculation formula, a final internal impedance calculation formula is determined by calculating the value of C by an iterating operation. Next, in the case of determining SOH of a battery, by substituting a standard temperature and a standard SOC into the final internal impedance calculation formula, the internal impedance to determine the SOH is calculated. By comparing the internal impedance with SOH determination threshold, the SOH of the battery is determined.
摘要翻译：系数A和B由测量的温度和测量的电荷状态计算。接下来，通过将所测量的内部阻抗X代入响应电压相关方程来计算响应电压Vc。此外，通过将响应电压Vc与预定阈值V0进行比较，如果Vc大于或等于V0，则电池被正常地确定。通过将内部阻抗，温度和SOC的测量值代入内部阻抗计算公式，通过迭代操作计算C的值来确定最终的内部阻抗计算公式。接下来，在确定电池的SOH的情况下，通过将标准温度和标准SOC代入最终内部阻抗计算公式，计算确定SOH的内部阻抗。通过比较内部阻抗与SOH判定阈值，确定电池的SOH。

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