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EPA fuel economy report finds weight and power leveling off, footprint stable

Green Car Congress

EPA recently released the latest edition of its annual report Light-Duty Automotive Technology, Carbon Dioxide Emissions and Fuel Economy Trends. The report is the authoritative reference for real-world fuel economy, technology trends and tailpipe carbon dioxide emissions, for new personal vehicles sold in the US every year since 1975.

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Average fuel economy of new vehicles in the US climbed to 23.0 mpg in January

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The average fuel economy of new vehicles sold in the US. The EDI takes into account both vehicle fuel economy and distance driven (the latter relying on data that are published with a two-month lag). All vehicles purchased from October 2007 through September 2008 were assumed to be model year 2008.

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

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Manufacturer-specific technology adoption over time for key technologies. The majority of the emissions and fuel savings from current vehicles, EPA noted, is due to new gasoline vehicle technologies. MY 2012 adjusted fuel economy is 23.6 l/100 km) fuel economy, which, if achieved, will again represent all-time records.

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2011 edition of EPA Fuel Economy Trends report shows several advanced powertrain technologies making significant gains

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Fuel economy improvements for the hybrid vehicles vary considerably from 5-10% for the larger, luxury hybrid vehicles to more than 40%. Fuel economy improvements for diesels range from 15% to 30% relative to gasoline counterparts. Compared to MY 1987, MY 2010 CO 2 emissions were 11 g/mi (3%) lower, and fuel economy was 0.6

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Peugeot to show 2008 HYbrid Air at Geneva show; more detail on operation

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Peugeot 2008 HYbrid Air. Like its group partner Citroën ( earlier post ), Peugeot will display an application of the new Hybrid Air technology ( earlier post )—the 2008 HYbrid Air—at the upcoming Geneva show. The platform is the modular construction component at the heart of the design and manufacture of any new model.

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Report suggests that not following good eco-driving practices can lead to a reduction in on-road fuel economy of up to about 45% in total

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The types of vehicles consumers select has by far the most dominant impact on on-road fuel economy—the best vehicle currently available for sale in the US is nine times more fuel efficient than the worst vehicle. Average on-road fuel economy in the US for all vehicles in 2008 was 17.4 mpg US (13.5

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EDAG study finds aluminum BIW can deliver mass savings of 35-40% over steel; fuel economy boost

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This, when combined with secondary mass savings and other design changes, could boost fuel economy by around 18%. No detailed manufacturing feasibility will be performed in this stage of the project. Concept was to be of riveted / bonded construction (with use of extrusions/sheet/castings). Weight reduction'