A combined simulation and testing approach has been developed to evaluate battery packs in real driving conditions as opposed to purely experimental testing. The new approach is cost-effective, greatly accelerates battery development cycle, and enables innovative battery design and optimization. Several fundamental models for valve-regulated lead-acid (VRLA), nickel-metal hydride (NiMH), and Li-ion batteries were developed to simulate in-vehicle performance of battery packs on field trips. Field testing was performed for both VRLA and NiMH batteries using Penn State University's electric vehicle, the Electric Lion. The computer results of voltage and current responses were compared to the field-test data to provide model validation. Furthermore, the model results for the evolution of internal conditions inside batteries were used to reveal their limiting mechanisms.
In-vehicle testing and computer modeling of electric vehicle batteries
Prüfung der Elektrofahrzeugbatterien im Fahrzeug und Rechnersimulation
2000
9 Seiten, 10 Bilder, 10 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
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