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An effective optimization of proportional integral observer for SOC estimation of lithium ion batteries is done in order to get a very high accuracy. During experimentation, a negligible error band of just 0.6% was found which is the quite high efficiency yet reported in the research area of state of charge estimation of Li-ion batteries. The worth mentioning improvements covered in this paper are...
With the popularity of Electrical Vehicles (EVs), Lithium-ion battery industry is also developing rapidly. To ensure the battery safety usage and reduce the average lifecycle cost, accurate State Of Charge (SOC) tracking algorithms for real-time implementation are required in different applications. Many different SOC estimation methods have been proposed in the literature. However, only few of them...
This paper describes experimental results aiming at analyzing lithiumion batteries performances with aging, for different state of charge and temperatures. The results are provided from electrochemical impedance spectroscopy (EIS) measurements on new and aged cells. A climatic test chamber is used during experiments to simulate the conditions of the temperature. Experimental data are plotted over...
This paper describes experimental results aiming at analyzing lithium-ion batteries performances with aging, for different state of charge and temperatures. The results are provided from electrochemical impedance spectroscopy (EIS) measurements on new and aged cells. A climatic test chamber is used during experiments to simulate the conditions of the temperature. Experimental data are plotted over...
One of the most essential and significant aspect of the battery management systems (BMS) is to estimate the state of charge (SOC) accurately, which can provide the judgment basis to system control strategy. In view of the lithium-ion power battery' s properties and its operation condition in electric vehicles, a new method named EKF-Ah that derives from the extended Kalman filtering (EKF) algorithm...
This paper mainly discusses a distributed battery management system (BMS) that used for hybrid electrical vehicle (HEV) and the research on Lithium-ion battery based on the model of PNGV. The BMS presented is composed with the distributed and integrated module, the distributed modules(DM) takes charge of measuring the parameters of voltage and temperature accurately and in time, communicate with the...
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