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Power battery is the heart of electric vehicles, and the accurate state of charge (SOC) estimation is crucial for the management of the power battery. This paper proposes an adaptive strong tracking unscented Kalman filter (ASTUKF) algorithm to estimate the SOC of lithium-ion battery. This method doesn't need to compute the Jacobian matrix compared with the traditional strong tracking filter. This...
The state of charge (SOC) of Lithium-ion batteries is one of the most critical indexes for battery management system (BMS) in electric vehicles (EV) and hybrid electric vehicles (HEV). To improve SOC estimation performance and reduce chattering effect caused by conventional sliding mode observer (SMO), a novel sliding mode observer is presented in this paper. The switching gains of the proposed observer...
High surface area activated carbon (AC) obtained by KOH activation was pulverized by ultrasonic air-jet pulverization equipment and the effect of particle size of AC on rate performance of electric double layer capacitors (ECs) was investigated by electrochemical impedance spectrometry using an equivalent circuit model based on a mixed kinetic and charge transfer control. The model parameters were...
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