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Research on SOC Estimation of LiFePO4 Battery in HEV

机译：混合动力车用磷酸铁锂电池SOC估算的研究

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摘要

For power distribution between engines and electric motors and the dynamic battery management SOC of the dynamic battery in HEV is an important parameter. To estimate SOC accurately LiFePO4 Battery was taken as study object in this paper and based on the characteristic experiments of the LiFePO4 Battery a new combining algorithm of estimating SOC has been put forward which combined Ah counting method, equivalent circuit model and open circuit voltage method. The simulation model of SOC algorithm in MATLAB was created in the paper and the results of simulation have indicated that the new strategy of estimating SOC was feasible and accurate.
机译：对于发动机和电动机之间的功率分配以及动力电池中的动力电池SOC，重要的参数是SOC。本文以LiFePO4电池为研究对象，以准确估计SOC为基础，基于LiFePO4电池的特性实验，提出了一种新的SOC估计组合算法，该算法结合了Ah计数法，等效电路模型和开路电压法。建立了MATLAB中SOC算法的仿真模型，仿真结果表明，新的SOC估计策略是可行，准确的。

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