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Island Concept EVT
Technical Paper
2006-01-3260
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents an all-wheel-drive (AWD) hybrid electric vehicle (HEV) design approach for extreme off-road applications. The paper focuses on the powertrain design, modeling, simulation, and performance analysis. Since this project focuses on a military-type application, the powertrain is designed to enhance crew survivability and provide several different modes of limp-home operation by utilizing a new vehicle topology -herein referred to as the island topology. This topology consists of designing the vehicle such that the powertrain and other equipment and subsystems surround the crew compartment to provide a high level of protection against munitions and other harmful ordnance. Thus, in the event of an external shield penetration, the crew compartment remains protected by the surrounding equipment - which serves as a secondary shield. The powertrain system principally consists of two internal combustion engines which are coupled to three electric machines using two planetary gear sets, and also includes other transmission elements. A detailed design of the powertrain is presented, which considers the vehicle layout, space claim issues, and extreme operating conditions.
Next in the paper, the mathematical model of the powertrain is outlined. The powertrain model is quasi-static, meaning that it neglects high-frequency dynamics due, for example, to gear elasticity. The model however, takes into account the inertias of the various components, as well as accounting for the parasitic losses due to friction. Finally, the powertrain model is implemented in a simulator program that provides an all-encompassing tool that allows for a complete analysis of the energy flow within the powertrain components. With this, the powertrain control strategy can be formulated with the objective of minimizing fuel consumption and / or maximizing performance using a trade-off approach.
Authors
- Codrin-Gruie Cantemir - Center for Automotive Research, Ohio State University
- Gabriel Ursescu - Center for Automotive Research, Ohio State University
- Lorenzo Serrao - Center for Automotive Research, Ohio State University
- Giorgio Rizzoni - Center for Automotive Research, Ohio State University
- James Bechtel - US Army Tank-automotive Research, Development, and Engineering Center National Automotive Center
- Thomas Udvare - US Army Tank-automotive Research, Development, and Engineering Center National Automotive Center
- Michael Letherwood - US Army Tank-automotive Research, Development, and Engineering Center National Automotive Center
Topic
Citation
Cantemir, C., Ursescu, G., Serrao, L., Rizzoni, G. et al., "Island Concept EVT," SAE Technical Paper 2006-01-3260, 2006, https://doi.org/10.4271/2006-01-3260.Also In
References
- Cantemir C.G. Hubert C. Rizzoni G. Willson C. Hybrid Electric Tractor Trailer for North America International Automotive Congress (CONAT) Brasov, Romania 2004
- Cantemir C.G. et al. An 1800 HP, Street Legal Corvette: An Introduction to the AWD Electrically-Variable Transmission SAE 2005 World Congress (Paper n. 2005-01-1169 ) 2005
- Rizzoni G. et al. Design, analysis and performance of an electric land speed record streamliner IEEE Vehicle Power and Propulsion Conference 2005
- Toyota Motor Corporation Overview of Toyota Hybrid System (THS-II) May 2003 http://www.toyota.co.jp/en/tech/environment/ths2/SpecialReports_12.pdf
- Muta K. Yamazaki M. Tokieda J. Development of New-Generation Hybrid System THS II - Drastic Improvement of Power Performance and Fuel Economy SAE 2004 World Congress, (Paper n. 2004-01-0064 ) 2004
- Miller J. M. “Hybrid Electric Vehicle Propulsion System Architectures of the e-CVT Type” IEEE Transactions On Power Electronics 21 3 May 2006
- Pisu P. et al. Evaluation of Powertrain Solutions for Future Tactical Truck Vehicle Systems SPIE Defense and Security Symposium 2006
- Rizzoni G. et al. Modeling, Simulation, and Concept Design for Hybrid-Electric Medium-Size Military Trucks SPIE Defense and Security Symposium 2005