论文信息 - Temperature Influences on State and Parameter Estimation Based on a Dual Kalman Filter

Temperature Influences on State and Parameter Estimation Based on a Dual Kalman Filter

The temperature dependency of a Dual Kalman Filter (DKF) is shown. For this purpose a validation process is developed to show the behaviour of the filter at various cell temperatures (5 ◦C, 25 ◦C, and 35 ◦C). Additionally, the validation process reveals some unresolved problems such as the behaviour during constant voltage periods. The behaviour of the DKF is compared to experimental data. The state estimator predicts the state of charge (SOC) with an accuracy of 1.5 % within the investigated temperature range. Furthermore, the state estimator is able to reproduce the observed characteristics of the ohmic resistance (Rdc1s) of the equivalent circuit model (ECM).

Andreas Jossen | Christian Campestrini | Markus Lienkamp | Georg Walder

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