Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing
Name
42154_2023_Article_241.pdf
Size
1.5 MB
Format
Adobe PDF
Checksum (MD5)
48d4a54af73a0fc6ae3dbc5d91def8f6
Author(s)
Daehn, Glenn S.
Daehn, Katrin E.
Kuttner, Oliver
Date Issued
August 25, 2023
Publisher
Springer Nature Singapore
Citation
Daehn, Glenn S., Daehn, Katrin E. and Kuttner, Oliver. 2023. "Environmentally Responsible Lightweight Passenger Vehicle Design and Manufacturing."
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/s42154-023-00241-4
