Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

ASSESSMENT OF FUEL ECONOMY TECHNOLOGIES FOR LIGHT-DUTY VEHICLES

Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy

Board on Energy and Environmental Systems

Division on Engineering and Physical Sciences

NATIONAL RESEARCH COUNCIL
OF THE NATIONAL ACADEMIES

THE NATIONAL ACADEMIES PRESS

Washington, D.C.
www.nap.edu

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

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NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance.

This study was supported by Contract No. DTNH22-07-H-00155 between the National Academy of Sciences and the Department of Transportation. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the organizations or agency that provided support for the project.

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Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

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Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

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Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

COMMITTEE ON THE ASSESSMENT OF TECHNOLOGIES FOR IMPROVING LIGHT-DUTY VEHICLE FUEL ECONOMY

TREVOR O. JONES,1

NAE, ElectroSonics Medical, Cleveland, Ohio,

Chair

THOMAS W. ASMUS,

NAE, DaimlerChrysler Corporation (retired), Oakland, Michigan

RODICA BARANESCU, NAE, NAVISTAR,

Warrenville, Illinois

JAY BARON,

Center for Automotive Research, Ann Arbor, Michigan

DAVID FRIEDMAN,

Union of Concerned Scientists, Washington, D.C.

DAVID GREENE,

Oak Ridge National Laboratory, Oak Ridge, Tennessee

LINOS JACOVIDES,

NAE, Delphi Research Laboratory (retired), Grosse Pointe Farms, Michigan

JOHN H. JOHNSON,

Michigan Technological University, Houghton

JOHN G. KASSAKIAN,

NAE, Massachusetts Institute of Technology, Cambridge

ROGER B. KRIEGER,

University of Wisconsin-Madison

GARY W. ROGERS, FEV,

Inc., Auburn Hills, Michigan

ROBERT F. SAWYER,

NAE, University of California, Berkeley

Staff

K. JOHN HOLMES, Study Director

ALAN CRANE, Senior Program Officer

LaNITA JONES, Administrative Coordinator

MADELINE WOODRUFF, Senior Program Officer

E. JONATHAN YANGER, Senior Project Assistant

JAMES J. ZUCCHETTO, Director,

Board on Energy and Environmental Systems

1

NAE, National Academy of Engineering.

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

BOARD ON ENERGY AND ENVIRONMENTAL SYSTEMS

ANDREW BROWN, JR., Chair,

NAE,1 Delphi Corporation, Troy, Michigan

RAKESH AGRAWAL,

NAE, Purdue University, West Lafayette, Indiana

WILLIAM BANHOLZER,

NAE, The Dow Chemical Company, Midland, Michigan

MARILYN BROWN,

Georgia Institute of Technology, Atlanta

MICHAEL CORRADINI,

NAE, University of Wisconsin-Madison

PAUL DeCOTIS,

Long Island Power Authority, Albany, New York

CHRISTINE EHLIG-ECONOMIDES,

NAE, Texas A&M University, College Station

WILLIAM FRIEND,

NAE, Bechtel Group, Inc., McLean, Virginia

SHERRI GOODMAN,

CNA, Alexandria, Virginia

NARAIN HINGORANI,

NAE,

Independent Consultant,

Los Altos Hills, California

ROBERT HUGGETT, Independent Consultant,

Seaford, Virginia

DEBBIE NIEMEIER,

University of California, Davis

DANIEL NOCERA,

NAS,2 Massachusetts Institute of Technology, Cambridge

MICHAEL OPPENHEIMER,

Princeton University, Princeton, New Jersey

DAN REICHER,

Stanford University, Stanford, California

BERNARD ROBERTSON,

NAE, DaimlerChrysler (retired), Bloomfield Hills, Michigan

ALISON SILVERSTEIN, Consultant,

Pflugerville, Texas

MARK THIEMENS,

NAS, University of California, San Diego

RICHARD WHITE,

Oppenheimer & Company, New York City

Staff

JAMES ZUCCHETTO, Director

DANA CAINES, Financial Associate

ALAN CRANE, Senior Program Officer

JONNA HAMILTON, Program Officer

K. JOHN HOLMES, Senior Program Officer and Associate Board Director

LaNITA JONES, Administrative Coordinator

ALICE WILLIAMS, Senior Program Assistant

MADELINE WOODRUFF, Senior Program Officer

JONATHAN YANGER, Senior Program Assistant

1

National Academy of Engineering.

2

National Academy of Sciences.

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

DEDICATION

This report is dedicated to Dr. Patrick Flynn, a very active and contributing committee member and a member of the National Academy of Engineering, who passed away on August 21, 2008, while this report was being prepared.

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

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Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

Acknowledgments

As a result of the considerable time and effort contributed by the members of the Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy, whose biographies are presented in Appendix A, this report identifies and estimates the effectiveness of technologies for improving fuel economy in light-duty vehicles, and the related costs. The committee’s statement of task (Appendix B) clearly presented substantial challenges, which the committee confronted with fair and honest discussion supported with data from the National Highway Traffic Safety Administration (NHTSA), the Environmental Protection Agency (EPA), and the DOT-Volpe Research Laboratory. I appreciate the members’ efforts, especially those who chaired the subgroups and led the compilation of the various chapters.

The data and conclusions presented in the report have benefited from a substantial amount of information provided by global automobile manufacturers, suppliers, and others in the regulatory communities and in non-governmental organizations. Appendix C lists the presentations provided to the committee. Members of the committee also visited industry organizations in North America, Europe, and Japan. In addition, the National Research Council contracted with outside organizations to develop and evaluate a number of technological opportunities.

The committee greatly appreciates and thanks the dedicated and committed staff of the National Research Council (NRC), and specifically the Board on Energy and Environmental Systems (BEES) under the direction of James Zucchetto (director of BEES). The committee particularly wishes to recognize the outstanding leadership of K. John Holmes, study director, and his staff. Thanks and recognition are due to the following BEES staff: Alan Crane, senior program officer; Madeline Woodruff, senior program officer; LaNita Jones, administrative coordinator; Jonathan Yanger, senior program assistant; and Aaron Greco, Mirzayan Policy Fellow, as well as consultants K.G. Duleep of Energy and Environmental Analysis, Inc.; Ricardo, Inc.; and IBIS, Inc. The committee also thanks Christopher Baillie, FEV, Inc., an unpaid consultant to the committee, for his many efforts, dedication, and hard work.

This report has been reviewed in draft form by individuals chosen for their diverse perspectives and technical expertise, in accordance with procedures approved by the Report Review Committee of the NRC. The purpose of this independent review is to provide candid and critical comments that will assist the institution in making its published report as sound as possible and to ensure that the report meets institutional standards for objectivity, evidence, and responsiveness to the study charge. The review comments and draft manuscript remain confidential to protect the integrity of the deliberative process.

We wish to thank the following individuals for their review of this report:

Tom Austin, Sierra Research Corporation,

Paul Blumberg, Consultant,

Andrew Brown, Delphi Corporation,

Wynn Bussmann, DaimlerChrysler Corporation (retired),

Laurence Caretto, California State University,

Coralie Cooper, NESCAUM,

James Fay, Massachusetts Institute of Technology,

Larry Howell, Consultant,

David Japikse, Concepts NREC,

Orron Kee, National Highway Traffic Safety Administration (retired),

Steven Plotkin, Argonne National Laboratory,

Priyaranjan Prasad, Prasad Consulting, and

Lee Schipper, Berkeley Transportation Center.

Although the reviewers listed above have provided many constructive comments and suggestions, they were not asked to endorse the conclusions or recommendations, nor

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

did they see the final draft of the report before its release. The review of this report was overseen by Elisabeth M. Drake, Massachusetts Institute of Technology (retired), and Dale Stein, Michigan Technological University (retired). Appointed by the NRC, they were responsible for making certain that an independent examination of this report was carried out in accordance with institutional procedures and that all review comments were carefully considered. Responsibility for the final content of this report rests entirely with the authoring committee and the institution.


Trevor O. Jones, Chair

Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.
Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.
   

 Homogeneous-Charge Compression Ignition,

 

54

   

 Combustion Restart,

 

54

   

 Ethanol Direct Injection,

 

54

   

 Findings,

 

55

   

 Bibliography,

 

56

   

 Annex,

 

58

5

 

COMPRESSION-IGNITION DIESEL ENGINES

 

61

   

 Introduction,

 

61

   

 Technologies Affecting Fuel Consumption,

 

62

   

 Fuel Consumption Reduction Potential,

 

68

   

 Technology Readiness/Sequencing,

 

72

   

 Technology Cost Estimates,

 

73

   

 Findings,

 

80

   

 References,

 

82

   

 Annex,

 

83

6

 

HYBRID POWER TRAINS

 

84

   

 Introduction,

 

84

   

 Hybrid Power Train Systems,

 

84

   

 Battery Technology,

 

88

   

 Power Electronics,

 

91

   

 Rotating Electrical Machines and Controllers,

 

91

   

 Cost Estimates,

 

93

   

 Fuel Consumption Benefits of Hybrid Architectures,

 

94

   

 Fuel Cell Vehicles,

 

95

   

 Findings,

 

95

   

 References,

 

96

   

 Annex,

 

97

7

 

NON-ENGINE TECHNOLOGIES

 

99

   

 Introduction,

 

99

   

 Non-Engine Technologies Considered in This Study,

 

99

   

 Fuel Consumption Benefits of Non-Engine Technologies,

 

106

   

 Timing Considerations for Introducing New Technologies,

 

109

   

 Costs of Non-Engine Technologies,

 

111

   

 Summary,

 

114

   

 Findings,

 

116

   

 References,

 

116

8

 

MODELING IMPROVEMENTS IN VEHICLE FUEL CONSUMPTION

 

118

   

 Introduction,

 

118

   

 Challenges in Modeling Vehicle Fuel Consumption,

 

119

   

 Methodology of the 2002 National Research Council Report,

 

119

   

 Modeling Using Partial Discrete Approximation Method,

 

123

   

 Modeling Using Full System Simulation,

 

131

   

 An Analysis of Synergistic Effects Among Technologies Using Full System Simulation,

 

133

   

 Findings,

 

135

   

 References,

 

136

9

 

APPLICATION OF VEHICLE TECHNOLOGIES TO VEHICLE CLASSES

 

138

   

 Introduction,

 

138

   

 Developing Baseline Vehicle Classes,

 

138

   

 Estimation of Fuel Consumption Benefits,

 

140

   

 Applicability of Technologies to Vehicle Classes,

 

141

Suggested Citation: "Front Matter." National Research Council. 2011. Assessment of Fuel Economy Technologies for Light-Duty Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12924.

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