Utveckling av Mätmetoder för Färdmotstånd

TL;DRAbstract

The student project Elba at KTH started in 2011 and is a project where a battery driven prototype car is developed. The vehicle competes in Eco Shell Marathon in Rotterdam, Holland. In this competition the vehicle that travels a certain distance including several starts and stops with the lowest energy consumption wins. To minimize the consumption is therefore very important, which requires knowledge of the vehicles energy losses. A vehicle's energy losses depends on several factors and can be divided into the powertrain efficiency and the driving resistance. The driving resistance can then be divided in to rolling and air resistance, if smaller losses like vibrations are ignored. This report seeks to develop, describe, and evaluate a couple of methods to measure these two parameters on behalf of KTH Transport Labs. The methods chosen are based on a literature study of earlier developed methods and a dialog with the clients. The measuring methods have been adapted to a low budget and s

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