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In this paper, a mixed algorithm is proposed to improve SOC estimation accuracy for large-capacity Li-ion battery by using advantages of coulomb counting method, DCIR reset method, and enhanced OCV reset method. Because each method has drawbacks of accumulated SOC error during the operation in EVs, the optimal mixed algorithm is presented. Also, the weighted current value IDC based on the mathematical...
This paper presents a Coulomb counting algorithm using the estimating OCV through a short rest time, such as the traffic signal time. Proposed algorithm could enhance the SOC estimating accuracy through the frequent SOC reset using a greatly short rest time, even though SOC reset error occurs. Also algorithm is implemented for a highly accurate SOC estimation by a SOC error prediction, an improvement...
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