This content is not included in your SAE MOBILUS subscription, or you are not logged in.
RCs Equivalent Circuit Model Parameters Characterization
ISSN: 0148-7191, e-ISSN: 2688-3627
To be published on April 14, 2020 by SAE International in United States
In the last decade, the equivalent circuit models have been utilized to model the lithium-ion batteries for electric vehicle applications. Different researchers have proposed a variety of equivalent circuit models from simple to complex ones. The parameters required to describe and build these equivalent circuit models are being extracted from the Hybrid Pulse Power Characterization (HPPC) Test data. This paper describes the process of the extraction of the equivalent circuit model parameters to build the battery models using different test methodologies such as HPPC and its modified versions. It also presents a case study with validated test results for a commercial light weight EV. Firstly, showing how the cell is characterized and then how the pack level cooling is developed to reach the required range based on an aggressive drive cycle. This is then integrated in to a full system level simulation to capture various interactions such as control on pack and thermal behavior in the vehicle environment.