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Lithium-ion batteries have been widely used in many fields. In order to make the battery work on good conditions, people should monitor its working states continuously. The two important working state of a battery are its internal resistance and the State of Charge (SOC). A dual estimation method of the internal resistance and the SOC based on the Unscented Kalman Filter (UKF) is proposed. The internal...
Lithium-ion batteries have been widely used in electric vehicles (EV). The working state of the battery is very important to the safety of an EV. Online estimation of the state of charge (SOC) is essential in obtaining the battery working conditions. In order to achieve an accurate estimation of the SOC, the battery model should be adjustable when the battery is aged. A joint battery model and SOC...
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...
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