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State-of-charge estimation method, state-of-charge estimation device, and secondary-battery power system
State-of-charge estimation method, state-of-charge estimation device, and secondary-battery power system
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机译:充电状态估计方法,充电状态估计装置和二次电池电力系统
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摘要
There is provided a state-of-charge estimation method, a state-of-charge estimation device, and a secondary-battery power system that may quickly and stably determine the convergence value of an adjustment parameter of a voltage characteristic formula that may approximate change over time of an open-circuit voltage of a secondary battery with high precision by appropriately setting the initial value of the adjustment parameter. At step S14, a selected voltage measurement values V1, VMbi ((i=1 to (n−1)), and VMm are used to calculate an initial value A0i (i=1 to n) of an adjustment parameter Ai (i=1 to n). In addition, at step S15, an integer string bi (i=1 to (n−1)) and a real number C are used to calculate an initial value B01 (i=1 to n) of an adjustment parameter Bi (i=1 to n).
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机译:提供了一种充电状态估计方法,充电状态估计装置以及二次电池电力系统,其可以快速且稳定地确定可以近似改变的电压特性公式的调整参数的收敛值。通过适当地设定调整参数的初始值,能够高精度地进行二次电池的开路电压的经时变化。在步骤S 14 B>,选择的电压测量值V 1 B>,VMbi((i = 1至(n-1))和VM m Sub >用来计算调整参数A i Sub>(i = 1到)的初始值A 0 B> i Sub>(i = 1到n)另外,在步骤S 15 B>中,使用整数串bi(i = 1至(n-1))和实数C来计算初始值B 0 B> 1 Sub>(i = 1到n)的调整参数B i Sub>(i = 1到n)。
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