Systems and methods for determining the state of charge of a battery utilizing confidence values

利用置信度值来确定蓄电池的充电状态的系统和方法

Abstract

本发明涉及利用置信度值来确定蓄电池的充电状态的系统和方法。利用基于电压的估计策略以及基于电流的估计策略来确定充电状态SOC估计。还产生关于基于电压的SOC估计和基于电流的SOC估计的置信度值,以量化与SOC估计相关的不确定度的量。通过比较置信度值并且选择具有最小量的不确定度的SOC估计,从而确定总SOC估计。
The present invention relates to systems and methods to determine a state of charge (SOC) of a battery using confidence values. SOC estimations are determined using a voltage-based estimation strategy and a current-based estimation strategy. Confidence values are also generated for the voltage-based SOC estimation and the current-based SOC estimation to quantify the amount of uncertainty associated with the SOC estimations. An overall SOC estimation is determined by comparing the confidence values and selecting the SOC estimation having the least amount of uncertainty.

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Cited By (2)

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    CN-104714181-AJune 17, 2015广州汽车集团股份有限公司Method and system for acquiring relationship of voltage and state of charge
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