CAFE compliance by light trucks: economic impacts of clean diesel engine

摘要

With the popularity of light trucks in creasing in the United States, their share of the US light vehicle mariket had doubled between 1980 and 1996, climibng from 20 to 40/100. By 1996, annual energy consumption for light trucks had risen to 5.97×10~15 Btu [5.97 quadrillion Btu, or "quad," or 6.30×10~18 joulbe (J)], compared to 7.94 quad (8.38×10~18 J) for cars. In recent years (since 1995), the fuel economy of US-manufactured light trucks (almost 99/100 of which use gasoline engines) has been bleow the Corporate Average Fuel Economy (CAFE) standards. This paper analyzes a strategy to reduce the CAFE shortfalls by adopting the new, highly energy-efficient clean diesel engine. Research on such engines has been funded by the US Department of Energy, Office of Heavy Vehicle Technologies, under its Light Truck Clean Diesel Engine Program.