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Apparatus and method for estimating resistance characteristics of battery based on open circuit voltage estimated by battery voltage variation pattern
Apparatus and method for estimating resistance characteristics of battery based on open circuit voltage estimated by battery voltage variation pattern
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机译:基于由电池电压变化模式估计的开路电压估计电池的电阻特性的装置和方法
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摘要
An apparatus for estimating resistance characteristics of a battery includes a data storing manager for obtaining and storing battery voltage, current and temperature data of a battery, whenever estimating a battery resistance characteristic; an open circuit voltage calculator for calculating battery open circuit voltage from a battery voltage variation pattern measured at the present and in the past; a weighted mean resistance calculator for calculating a battery resistance parameter from a battery current and a difference between the battery open circuit voltage and a battery voltage, and calculating a weighted mean resistance from battery resistance parameters calculated at the present and in the past; a weighted mean resistance convergence calculator for calculating a weighed mean resistance convergence value by repeatedly calculating a weighted mean sequence using the weighted mean resistance as an initial condition; and a resistance characteristic estimator for estimating a battery resistance from the weighted mean resistance convergence value.
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