400 Commonwealth Drive, Warrendale, PA 15096-0001 U.S.A. Tel: (724) 776-4841 Fax: (724) 776-5760 Web: www.sae.org SAE TECHNICAL PAPER SERIES 2006-01-0441 A Simulation Model for the Saturn VUE Green Line Hybrid Vehicle Chihsiung Lo, Yunfei Luan, Edward D. Tate and Tony H. Zarger General Motors Corporation Reprinted From: Advanced Hybrid Vehicle Powertrains 2006 (SP-2008) 2006 SAE World Congress Detroit, Michigan April 3-6, 2006 Downloaded from SAE International by University of Michigan, Saturday, July 28, 2018The Engineering Meet ings Board has approved this paper for publication. It has successfully completed SAE's peer review process under the supervision of the session organizer. This process requires a minimum of three (3) reviews by industry experts. All rights reserved. No part of this publication may be reproduced, stored in a retr ieval system, or transmitted, in any form or by any means, electronic, mechanical, ph otocopying, recording, or otherwise, without the prior written permission of SAE. For permission and licen sing requests contact: SAE Permissions 400 Commonwealth DriveWarrendale, PA 15096-0001-USAEmail: [email protected]: 724-772-4028 Fax: 724-776-3036 For multiple print copies contact: SAE Customer Service Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790Email: [email protected] ISSN 0148-7191 Copyright © 2006 SAE International Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is so lely responsible for the content of the pap er. A process is available by which discussions will be printed with the paper if it is published in SAE Transactions. Persons wishing to submit papers to be considered for presentation or publication by SAE should send the manuscript or a 300 word abstract to Secretary, Engineering Meetings Board, SAE. Printed in USADownloaded from SAE International by University of Michigan, Saturday, July 28, 20181ABSTRACT In developing the 2007 Model Year Saturn VUE Green Line hybrid vehicle, a vehicle model for prediction of fuel economy and performance was developed. This model was developed in Matlab / Simulink / Stateflow by augmenting an existing conventional vehicle model to include hybrid components and controls. The generic structure and the functionalities of the model are presented. This simulation model was used for rapid concept selection and requirements balancing early in the vehicle development process. Engine usage and energy distributions are shown based on simulation results. Fuel economy breakdown was also discussed. INTRODUCTION Weight 3625 lb TWC (1644 kg) Engine 2.2 L DOHC Line-4, 16 V Max. Power 107 kW @ 5400 rpm Max. Torque 206 N-m @ 4000 rpm Compression Ratio 10 : 1 Fuel Regular Unleaded Transmission 4-Speed Automatic Table 1 Key Parameters of Conventional Saturn VUE (Baseline Vehicle) Table 1 contains the key vehicle parameters for the conventional Saturn VUE, which is used as the baseline vehicle in the simulation study. This base conventional vehicle gets 22 mpg city label, and 27 mpg highway label fuel economy, in the FTP certification test [1] required by EPA. It should be noted that for a compact SUV, these are among the best in class fuel economy numbers for a conventional vehicle. Table 2 contains the key parameters for this hybrid Saturn VUE Green Line vehicle, for 2007 Model Year. The increase of one TWC reflects the additional mass of hybrid compoments. These compoments include the HV battery pack, MG, PEB, additional electrical cables, and other additions / changes necessary to enable the hybrid functions. The 2.4 L Line-4 engine with VVT, delivers significantly more torque and power than the 2.2 L Line- 4 engine used in the baseline conventional vehicle. The VVT and other engine technologies in the 2.4 L Line-4 engine also contribute to higher efficiency. The transmission used in t