On-road Testing and Characterization of Fuel Economy of Light-Duty Vehicles

2005 ◽  
Author(s):  
Richard A. Rykowski ◽  
Edward K. Nam ◽  
George Hoffman
Keyword(s):  
Fuel Economy ◽  
Light Duty ◽  
Road Testing ◽  
Light Duty Vehicles

Chemical characterization of PM2.5 emitted from China IV and China V light-duty vehicles in China

2021 ◽  
Vol 783 ◽  
pp. 147101
Author(s):  
Yanzhao Hao ◽  
Shunxi Deng ◽  
Zhaowen Qiu ◽  
Zhenzhen Lu ◽  
Hui Song ◽  
...  
Keyword(s):  
Chemical Characterization ◽  
Light Duty ◽  
Light Duty Vehicles

scholarly journals Drive cycle simulation of high efficiency combustions on fuel economy and exhaust properties in light-duty vehicles

2015 ◽  
Vol 157 ◽  
pp. 762-776 ◽  
Author(s):  
Zhiming Gao ◽  
Scott J. Curran ◽  
James E. Parks ◽  
David E. Smith ◽  
Robert M. Wagner ◽  
...  
Keyword(s):  
Fuel Economy ◽  
High Efficiency ◽  
Drive Cycle ◽  
Cycle Simulation ◽  
Light Duty ◽  
Light Duty Vehicles

Energy Efficiency, Fuel Economy, and Policy Implications

2005 ◽  
Vol 1941 (1) ◽  
pp. 8-17 ◽  
Author(s):  
Nicholas Lutsey ◽  
Daniel Sperling
Keyword(s):  
Energy Efficiency ◽  
Technological Innovation ◽  
Public Interest ◽  
Fuel Economy ◽  
The United States ◽  
Policy Implications ◽  
The Public ◽  
Light Duty ◽  
Consumption Energy ◽  
Light Duty Vehicles

In the past 20 years, the acceleration performance of light-duty vehicles in the United States has improved substantially while vehicles have gotten larger and heavier. Over the same period, fuel economy, measured as miles per gallon, has not improved. These data suggest that technological innovation in vehicles is not lagging but is not being used to improve vehicle fuel economy. This paper quantifies vehicle efficiency improvements in U.S. light-duty vehicles since 1975 as they relate to fuel consumption. Energy efficiency improvements have been strongly positive and relatively constant since 1975. The rapid rise in fuel economy in the late 1970s was due to a mix of efficiency improvements and downgrading of utility in the form of reduced size, power, and elimination of accessories and amenities (such as air conditioning). In contrast, since the mid-1980s, fuel economy has remained constant while the benefits of technological innovation were used to satisfy private desires (more power, size, and amenities), instead of the public interest (reduced greenhouse gas emissions and oil imports). An important policy question is how and to what extent future efficiency innovations might be directed to the public interest.

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