Dynamic simulation of state of charge and efficiency of an electric racecar battery

Na temelju simulacijskog modela električnog bolida, razvijenog za Formula Student natjecanje, predviđa se optimalan odabir komponenata, između ostalog i baterijskog paketa. Na bazi sakupljenog znanja predviđeno je da će najbolje odgovarati konfiguracija baterije 140s3p ili 140s4p. Rezultat simulacije bio je da je sumarni uspjeh u dinamičkim disciplinama na natjecanju bolji za konfiguraciju s 3 paralele. Bilo je potrebno validirati ovaj rezultat. To je provedenom testiranjem izdržljivosti kapaciteta i praćenjem temperaturnog ponašanja pojedinačne ćelije Molicel INR-21700-P42B. U sklopu rada je razvijen program u LabVIEW programskom sučelju te je provedeno testiranje i analiza rezultata. Validacija je provedena uspješno te se stanje napunjenosti na kraju strujnog ciklusa napravljenog testiranjem poklapa sa vrijednosti predviđenom simulacijom. Temperaturno mjerenje se ne može smatrati dovoljno točnim i relevantnim.Based on a simulation model of an electric racecar developed for the Formula Student competition, the optimal selection of components, including the battery pack, is predicted. Based on the accumulated knowledge, it was predicted that the 140s3p or 140s4p battery configuration would be the best fit. The simulation results showed that the overall performance in dynamic disciplines during the competition was better for the configuration with 3 parallel connections. To validate this result, endurance capacity testing and monitoring of temperature behavior were conducted on individual Molicel INR-21700-P42B cells. A LabVIEW program was developed as part of this research, and testing and analysis of the results were carried out. The validation was successfully performed, with the state of charge at the end of the current cycle matching the values predicted by the simulation. However, the temperature measurement cannot be considered sufficiently accurate and relevant