The electric vehicle experiment : developing the theoretical model for 2.672

Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.

Bibliographic Details
Main Author: Zedler, Matthew R. (Matthew Robert)
Other Authors: C. Forbes Dewey.
Format: Thesis
Language:eng
Published: Massachusetts Institute of Technology 2008
Subjects:
Online Access:http://hdl.handle.net/1721.1/40929
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author Zedler, Matthew R. (Matthew Robert)
author2 C. Forbes Dewey.
author_facet C. Forbes Dewey.
Zedler, Matthew R. (Matthew Robert)
author_sort Zedler, Matthew R. (Matthew Robert)
collection MIT
description Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
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spelling mit-1721.1/409292019-04-10T15:57:55Z The electric vehicle experiment : developing the theoretical model for 2.672 EVE : developing the theoretical model for 2.672 Zedler, Matthew R. (Matthew Robert) C. Forbes Dewey. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007. Includes bibliographical references (p. 33). The purpose of this project was to develop a computer simulation of the proposed 2.672 electric vehicle experiment (EVE) to estimate the magnitudes of the powers required in different components of the drive train, piecewise component and system efficiencies, and the information that would need to be collected to construct different component power models. The EVE model had to incorporate both acceleration and deceleration of the vehicle, using regenerative braking as needed. The resulting model can be used to evaluate the safety and feasibility of the EVE and determine sizes of relevant testing equipment required to implement the EVE. The model showed that the EVE could work safely and be modeled with a reasonable amount of effort by students in 2.672. The relatively low power flows (under 4kW) allow safe operation while the students are learning about the efficiencies of the individual components. The most inefficient component for the low speeds expected in the EVE was the motor/generator unit, though the efficiency increased as the torque increased. The gearbox and controller efficiencies were modeled as constants in the simplified model since the manufacturer's literature only quoted one value for the gearbox and since there was a lack of detailed information about the controller. The overall system energy recovery efficiency using regenerative braking was low, reaching a maximum of about 40% and falling as low as 10% when higher than expected power flows were used. The theoretical model was simplified by removing the effects of temperature and heat rise. Only with a built EVE can the actual performance of the system be characterized. by Matthew R. Zedler. S.B. 2008-03-27T18:24:30Z 2008-03-27T18:24:30Z 2007 2007 Thesis http://hdl.handle.net/1721.1/40929 212409133 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 50 p. application/pdf Massachusetts Institute of Technology
spellingShingle Mechanical Engineering.
Zedler, Matthew R. (Matthew Robert)
The electric vehicle experiment : developing the theoretical model for 2.672
title The electric vehicle experiment : developing the theoretical model for 2.672
title_full The electric vehicle experiment : developing the theoretical model for 2.672
title_fullStr The electric vehicle experiment : developing the theoretical model for 2.672
title_full_unstemmed The electric vehicle experiment : developing the theoretical model for 2.672
title_short The electric vehicle experiment : developing the theoretical model for 2.672
title_sort electric vehicle experiment developing the theoretical model for 2 672
topic Mechanical Engineering.
url http://hdl.handle.net/1721.1/40929
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