Fast and accurate battery model including temperature dependency

The need to reduce fuel consumption, minimize emissions, and improve levels of safety, comfort, and reliability is expected to result in a much higher demand for electric power in future cars. In order to develop the needed control algorithms and to optimize the required components adequate simulation models are needed. In this paper, the authors present a battery model based on an equivalent electrical circuit able to describe the current-voltage behavior depending on the state of charge and temperature. Due to the simple structure of the model only a small computational effort is required. Nevertheless a good agreement between measurement and simulation is achieved.