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Influence of Mass Distribution of Battery and Occupant on Crash Response of Small Lightweight Electric Vehicle
Technical Paper
2015-01-0575
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Small lightweight electric vehicle (SLEV) is an approach for compensating low energy density of the current battery. However, small lightweight vehicle presents technical challenges to crash safety design. One issue is that mass of battery pack and occupants is a significant portion of vehicle's total weight, and therefore, the mass distribution has great influence on crash response. This paper presents a parametric analysis using finite element modeling. We first build LS-DYNA model of a two-seater SLEV with curb weight of 600 kg. The model has no complex components and can provide reasonable crash pulses under full frontal rigid barrier crash loading and offset deformable barrier (ODB) crash loading. For given mass of battery pack and one occupant (the driver), different battery layouts, representing different combinations of center of gravity and moment of inertia of the whole vehicle, are analyzed for their influences on the crash responses under the two frontal crash loadings. Then the mass of a second occupant is added to the passenger side for analysis. It has been found that these changes of mass distribution have significant impact on the crash pulse shape and peak, through the pitch in the full frontal crash loading and the yaw in the ODB loading. Therefore, mass distribution is critical in crash safety design of SLEV.
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Citation
Zhang, S., Zhou, Q., and Xia, Y., "Influence of Mass Distribution of Battery and Occupant on Crash Response of Small Lightweight Electric Vehicle," SAE Technical Paper 2015-01-0575, 2015, https://doi.org/10.4271/2015-01-0575.Also In
References
- Plug-in electric vehicle http://en.wikipedia.org/wiki/Plug-in_electric_vehicle 2014
- Gerssen-Gondelach Sarah J. , Faaij André P.C. Performance of batteries for electric vehicles on short and longer term Journal of Power Sources 212 15 August 2012 111 129 10.1016/j.jpowsour.2012.03.085
- Redelbach Martin , Özdemir Enver Doruk , Friedrich Horst E. Optimizing battery sizes of plug-in hybrid and extended range electric vehicles for different user types Energy Policy 73 October 2014 158 168 10.1016/j.enpol.2014.05.052
- Shi , Y. and Nusholtz , G. Effects of Vehicle Mass and Other Parameters on Driver Relative Fatality Risk in Vehicle-Vehicle Crashes SAE Int. J. Trans. Safety 1 1 145 165 2013 10.4271/2013-01-0466
- Liu , Z. , Zheng , H. , and Xu , W. A Model-Based Mass Estimation and Optimal Braking Force Distribution Algorithm of Tractor and Semi-Trailer Combination SAE Technical Paper 2013-01-0418 2013 10.4271/2013-01-0418
- Carlson , R. , Lohse-Busch , H. , Diez , J. , and Gibbs , J. The Measured Impact of Vehicle Mass on Road Load Forces and Energy Consumption for a BEV, HEV, and ICE Vehicle SAE Int. J. Alt. Power. 2 1 105 114 2013 10.4271/2013-01-1457
- Matsusaka Steven D. , & Richardson , F. Final Report of New Car Assessment Program Testing of a 2013 Smart Electric Drive 2-Door Coupe National Highway Traffic Safety Administration, U. S. Department of Transportation
- Ping Zhu , Feng Pan , Wei Chen , Felipe A.C. Viana Lightweight design of vehicle parameters under crashworthiness using conservative surrogates Computers in Industry 64 3 April 2013 280 289 10.1016/j.compind.2012.11.004
- Kiani Morteza , Gandikota Imtiaz , Rais-Rohani Masoud , Motoyama Keiichi Design of lightweight magnesium car body structure under crash and vibration constraints Journal of Magnesium and Alloys 2 2 June 2014 99 108 10.1016/j.jma.2014.05.005
- Bower George S. Spark EV versus Volt Battery http://gm-volt.com/2013/08/02/spark-ev-versus-volt-battery 2014
- Carter Melanie The Electric Mitsubishi Colt http://www.carpages.co.uk/mitsubishi/mitsubishi-colt-part-2-13-05-05.asp 2014