Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing

Abstract The mass reduction of passenger vehicles has been a great focus of academic research and federal policy initiatives of the United States with coordinated funding efforts and even a focus of a Manufacturing USA Institute. The potential benefit of these programs can be described...

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Main Authors: Daehn, Glenn S., Daehn, Katrin E., Kuttner, Oliver
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:English
Published: Springer Nature Singapore 2023
Online Access:https://hdl.handle.net/1721.1/152288
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author Daehn, Glenn S.
Daehn, Katrin E.
Kuttner, Oliver
author2 Massachusetts Institute of Technology. Department of Materials Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Materials Science and Engineering
Daehn, Glenn S.
Daehn, Katrin E.
Kuttner, Oliver
author_sort Daehn, Glenn S.
collection MIT
description Abstract The mass reduction of passenger vehicles has been a great focus of academic research and federal policy initiatives of the United States with coordinated funding efforts and even a focus of a Manufacturing USA Institute. The potential benefit of these programs can be described as modest from a societal point of view, for example reducing vehicle mass by up to 25% with modest cost implications (under $5 per pound saved) and the ability to implement with existing manufacturing methods. Much more aggressive reductions in greenhouse gas production are necessary and possible, while delivering the same service. This is demonstrated with a higher-level design thinking exercise on an environmentally responsible lightweight vehicle, leading to the following criteria: lightweight, low aerodynamic drag, long-lived (over 30 years and 2 million miles), adaptable, electric, and used in a shared manner on average over 8 h per day. With these specifications, passenger-mile demand may be met with around 1/10 of the current fleet. Such vehicles would likely have significantly different designs and construction than incumbent automobiles. It is likely future automotive production will be more analogous to current aircraft production with higher costs per pound and lower volumes, but with dramatically reduced financial and environmental cost per passenger mile, with less material per vehicle, and far less material required in the national or worldwide fleets. Subsidiary benefits of this vision include far fewer parking lots, greater accessibility to personal transportation, and improved pedestrian safety, while maintaining a vibrant and engaging economy. The systemic changes to the business models and research and development directions (including lightweight design and manufacturing) are discussed, which could bring forth far more sustainable personal transportation.
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spelling mit-1721.1/1522882024-01-08T20:57:03Z Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing Daehn, Glenn S. Daehn, Katrin E. Kuttner, Oliver Massachusetts Institute of Technology. Department of Materials Science and Engineering Abstract The mass reduction of passenger vehicles has been a great focus of academic research and federal policy initiatives of the United States with coordinated funding efforts and even a focus of a Manufacturing USA Institute. The potential benefit of these programs can be described as modest from a societal point of view, for example reducing vehicle mass by up to 25% with modest cost implications (under $5 per pound saved) and the ability to implement with existing manufacturing methods. Much more aggressive reductions in greenhouse gas production are necessary and possible, while delivering the same service. This is demonstrated with a higher-level design thinking exercise on an environmentally responsible lightweight vehicle, leading to the following criteria: lightweight, low aerodynamic drag, long-lived (over 30 years and 2 million miles), adaptable, electric, and used in a shared manner on average over 8 h per day. With these specifications, passenger-mile demand may be met with around 1/10 of the current fleet. Such vehicles would likely have significantly different designs and construction than incumbent automobiles. It is likely future automotive production will be more analogous to current aircraft production with higher costs per pound and lower volumes, but with dramatically reduced financial and environmental cost per passenger mile, with less material per vehicle, and far less material required in the national or worldwide fleets. Subsidiary benefits of this vision include far fewer parking lots, greater accessibility to personal transportation, and improved pedestrian safety, while maintaining a vibrant and engaging economy. The systemic changes to the business models and research and development directions (including lightweight design and manufacturing) are discussed, which could bring forth far more sustainable personal transportation. 2023-09-27T20:18:17Z 2023-09-27T20:18:17Z 2023-08-25 2023-08-27T03:12:08Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/152288 Daehn, Glenn S., Daehn, Katrin E. and Kuttner, Oliver. 2023. "Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing." PUBLISHER_CC en https://doi.org/10.1007/s42154-023-00241-4 Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Nature Singapore Springer Nature Singapore
spellingShingle Daehn, Glenn S.
Daehn, Katrin E.
Kuttner, Oliver
Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title_full Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title_fullStr Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title_full_unstemmed Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title_short Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
title_sort environmentally responsible lightweight passenger vehicle design and manufacturing
url https://hdl.handle.net/1721.1/152288
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