21thSAE BRASIL International Congress and Exhibition São Paulo, Brasil October, 2nd to 4th AV. PAULISTA, 2073 - HORSA II - CJ. 1003 - CEP 01311-940 - SÃO PAULO – SPAFFILIATED TO SAE TECHNICAL 2012-36-0105 PAPER SERIES E Energy Efficiency of Series Hybrid Electric Vehicles FERNANDO ZEGARRA SANCHEZ SERGIO LEAL BRAGA Downloaded from SAE International by Big Ten Academic Alliance, Tuesday, July 31, 2018The appearance of the ISSN code at the bottom of this page indicates SAE’s consent that copies of the paper may be made for personal or internal use of specific clients. This consent is given on the condition however, that the copier pay a $ 7.00 per article copy fee through the Copyright Clearance Center, Inc. Operations Center, 222 Rosewood Drive, Danvers, MA 0192 3 for copying beyond that permitted by Sections 107 or 108 of U.S. Copyright Law. This consent does not extend to other kinds of copying such as copying for general distribution, for advertising or promotional purposes, for creating ne w collective works, or for resale. SAE routinely stocks printed papers for a period of three years following date of publication. Direct your orders to SAE Customer Sales and Satisfaction Department. Quantity reprint rates can be obtained from the Customer Sales and Satisfaction Department. To request permission to reprint a technical paper or permission to use copyrighted SAE publications in other works, contact the SAE Publications Group. All SAE papers, standards, and selected books are abstracted and indexed in the Global Mobility Database. No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. ISSN 0148-7191 Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by which discussions will be printed with the paper if it is published in SAE Transactions. For permission to publish this paper in full or in part, contact the SAE Publications Group. Persons wishing to submit papers to be considered for presentation or publication through SAE should send the manuscript or a 300 word abstract of a proposed manuscript to: Secretary, Engineering Meetings Board, SAE.Copyright © 2012 SAE International Downloaded from SAE International by Big Ten Academic Alliance, Tuesday, July 31, 20182012-36-0105 /g40/g81/g72/g85/g74/g92/;#23#23#23/g40/g73/g73/g76/g70/g76/g72/g81/g70/g92/;#23#23#23/g82/g73/;#23#23#23/g54/g72/g85/g76/g72/g86/;#23#23#23/g43 /g92/g69/g85/g76/g71/;#23#23#23/g40/g79/g72/g70/g87/g85/g76/g70/;#23#23#23/g57/g72/g75/g76/g70/g79/g72/g86/;#23#23#23 Fernando Zegarra Sánchez and Sergio Leal Braga Pontifical Catholic University of Rio de Janeiro Copyright © 2012 SAE International ABSTRACT This study presents the evaluation of the energy efficiency of a series hybrid electric vehicle through the theoretical development of two electric propulsion systems and an experimental study of fuel consumption of the original vehicle. The experimental analysis was done by a test setting, consisting mainly of a chassis dynamometer, an autopilot system and a fuel flowmeter, all connected to the data acquisition system. In this study it was developed two theoretical models of propulsion systems for Series - HEV. The first one consists of four in-wheel motors and the second one consists of two in-wheel motors on the rear axle. There are various methods for embedding a motor in the wheel. It is necessary to consider the weight, power and transmission efficiency. In the theoretical model it was considered a cycloidal reducer, which allows a reduction of 3:1 to 119:1 in one stage with an efficiency of 93%, together with a brushless DC motor, wh