The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2010.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2010
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| Online Access: | http://hdl.handle.net/1721.1/58392 |
| _version_ | 1811073807601893376 |
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| author | Berry, Irene Michelle |
| author2 | John Heywood. |
| author_facet | John Heywood. Berry, Irene Michelle |
| author_sort | Berry, Irene Michelle |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2010. |
| first_indexed | 2024-09-23T09:38:35Z |
| format | Thesis |
| id | mit-1721.1/58392 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T09:38:35Z |
| publishDate | 2010 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/583922022-01-31T19:22:47Z The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles Berry, Irene Michelle John Heywood. Massachusetts Institute of Technology. Technology and Policy Program. Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Engineering Systems Division Technology and Policy Program Mechanical Engineering. Technology and Policy Program. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M. in Technology and Policy)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2010. Cataloged from PDF version of thesis. Includes bibliographical references (p. 121-128). Even with advances in vehicle technology, both conservation and methods for reducing the fuel consumption of existing vehicles are needed to decrease the petroleum consumption and greenhouse gas emissions of the U.S. light-duty vehicle fleet. One way to do this is through changes in driving style, specifically through reductions in driving aggressiveness. The role of vehicle performance is particularly interesting because of the recognized tradeoff between vehicle performance and certified fuel consumption and because more powerful vehicles are capable of more aggressive driving. This thesis analyzes the effects of driving style and vehicle performance on the real-world fuel consumption of conventional vehicles though two parts. First, vehicle simulations assess the sensitivity of fuel consumption to a wide range of driving patterns. From these results, three aggressiveness factors were developed for quantifying driving aggressiveness. Each aggressiveness factor, although based only on the speed trace and vehicle characteristics, is proportional to fuel consumption in one of three specific speed ranges: neighborhood, city, or highway speeds. These aggressiveness factors provide a tool for comparing drive cycles and evaluating the real-world driving patterns. Second, driving data from two U.S. sources was used to 1) provide illustrative examples of real world driving and 2) assess the relationship between driving aggressiveness and vehicle performance. The distribution of aggressiveness among the driving data follows a lognormal shape. The average aggressiveness is either below or near the aggressiveness of the U.S. drive cycles developed in the 1990s. Moderate performance vehicles, the most common type of vehicle, are driven most aggressively. Low performance vehicles are driven least aggressively. The results suggest that, for the illustrative data analyzed in this work, reducing velocities during highway driving would save roughly the same amount of fuel as reducing accelerations during all driving. However, on an individual basis, the fuel savings achieved from these behaviors would vary significantly. Aggressive drivers should focus on reducing accelerations, while less aggressive drivers should focus on driving at lower speeds on the highway. And the greatest fuel savings can be attained if the most aggressive drivers, those who drive moderate performance vehicles, drove with lower accelerations. by Irene Michelle Berry. S.M. 2010-09-03T18:34:10Z 2010-09-03T18:34:10Z 2010 2010 Thesis http://hdl.handle.net/1721.1/58392 649054011 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 140 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Technology and Policy Program. Berry, Irene Michelle The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title | The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title_full | The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title_fullStr | The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title_full_unstemmed | The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title_short | The effects of driving style and vehicle performance on the real-world fuel consumption of U.S. light-duty vehicles |
| title_sort | effects of driving style and vehicle performance on the real world fuel consumption of u s light duty vehicles |
| topic | Mechanical Engineering. Technology and Policy Program. |
| url | http://hdl.handle.net/1721.1/58392 |
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