Selection of Lightweighting Strategies for Use Across an Automaker's Vehicle Fleet
Name
Montalbo-2009-Selection of Lightweighting Strategies for Use Across an Automaker's Vehicle Fleet.pdf
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208.07 KB
Format
Adobe PDF
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Author(s)
Kirchain, Randolph E., Jr.
Montalbo, Trisha
Lee, Theresa M.
Roth, Richard
Date Issued
July 2009
Journal
IEEE International Symposium on Sustainable Systems and Technology, 2009. ISSST '09
Publisher
Institute of Electrical and Electronics Engineers
Citation
Montalbo, T. et al. “Selection of lightweighting strategies for use across an automaker's vehicle fleet.” Sustainable Systems and Technology, 2009. ISSST '09. IEEE International Symposium on. 2009. 1-6. © 2009 IEEE.
Version
Final published version
Abstract
Vehicle lightweighting, or mass reduction, via materials substitution is a common approach to improve fuel economy. The many subsystems in a vehicle, choices of materials, and manufacturing processes available, though, lead to numerous paths to achieving the mass reduction and identifying the best ones for an automaker to implement can be a challenge. In this paper, that challenge is addressed through the development of a selection model designed to inform the lightweighting strategy decision for an automaker's fleet. The model, implemented with a genetic algorithm, identifies the strategies that enable an automaker to optimize the net present value of its cash flow, as well as to meet its CAFE obligations over the coming years. A case study of various strategies implemented in three vehicles over a three-year timeframe is used to demonstrate application of the genetic algorithm selection model and contrast it to an alternative period-by-period search implementation.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Engineering Systems Division
Massachusetts Institute of Technology. Materials Systems Laboratory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/ISSST.2009.5156785
