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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
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An Accessible Pre-design Calculation Tool to Support the Definition of EV Components

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World Electr. Veh. J. 2015, 7(1), 101-113; https://doi.org/10.3390/wevj7010101
Published: 27 March 2015
PDF [869 KB, uploaded 18 May 2018]

Abstract

The new freedoms in design that electric powertrains offer lead to a wide variety of configurations to consider when developing an electric vehicle (EV) from scratch. Furthermore, the strong relation of the battery size with vehicle weight, range and performances leads to a set of interrelated dependencies that can result in many design loops to fulfil the targets and regulations simultaneously. The paper presents a tool that integrates the main relations regarding vehicle targets, market and regulations constraints and plots them as restrictions for vehicle development. As a result, the tool depicts a set of feasible vehicle configurations that could fulfil the targets. Furthermore, to better assist selection, it also provides a sensitivity analysis of the performances and the user can introduce a cost function depending on vehicle weight and battery size. The tool is aimed at providing an overview of specifications for component selection avoiding detailed vehicle modelling in the early pre-design phase in which vehicle characteristics and even powertrain architecture are unknown. Finally, the tool is evaluated by modelling one of its solutions for passenger car for three different architectures in the simulation software vemSim. Furthermore, for one of the architectures, two control strategies were simulated, leading to a total of four simulations. The results of the simulations are compared to the solution of the pre-design tool to evaluate the level of fidelity and the deviations in the final result that can appear depending on the architecture, components and control strategy.
Keywords: design; energy consumption; definition; simulation; performances design; energy consumption; definition; simulation; performances
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Roche, M.; Sabrià, D.; Mammetti, M. An Accessible Pre-design Calculation Tool to Support the Definition of EV Components. World Electr. Veh. J. 2015, 7, 101-113.

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