Analysis of Lithium-Ion Battery Data Collected On-Board Electric Vehicles
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
In order to replace diesel energy in the transportation sector as well as to reduce the emission of green house gases (GHGs) and avoid air pollution for a sustainable future, electrification of vehicles is one of the most popular topics today.
Plug-in hybrid electric vehicle (PHEV) technology is a promising technology for electrification of automobiles. It uses both internal combustion engine and electric motor for propulsion. The battery pack that propels the electric machine can be recharged from grid electricity and from kinetic energy converted from regenerative braking.
In this thesis, field test data from a Volvo V70 prototype in a 2010 study by Volvo and Vattenfall (ETC, Volvo, Vattenfall, 2010) was analyzed with Matlab to give a better understanding of the usage of PHEVs and the performance of lithium-ion battery.
Several conclusions were obtained in this thesis from the analyzed data. It was found that average and maximum driving speed in Diesel Mode is faster than that in Electric Mode. Different drivers had different preference of driving speed. Driving distance vary in different months; longer distance was running under Diesel Mode; A considerable number of 370 kg carbon dioxide emission was saved by using electric energy instead of diesel energy for the studied car during one year. Battery performance in cold temperature conditions needs to be considered and the vehicle was switched to Diesel Mode from Electric Mode when SOC falls below 30%.
Place, publisher, year, edition, pages
2013. , 48 p.
PHEV, Lithium-Ion Battery, On-board test
Energy Engineering Vehicle Engineering
IdentifiersURN: urn:nbn:se:kth:diva-132169OAI: oai:DiVA.org:kth-132169DiVA: diva2:658429
Subject / course
Master of Science - Sustainable Energy Engineering
2013-06-29, TEKNIKRINGEN 42, Stockholm, 08:45 (English)
Klass, Verena, phd
Martin, Andrew, professor