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EPA Trends on EVs and PHEVs; beginning of a “measurable and meaningful impact” on new vehicle fuel economy and emissions

Green Car Congress

With alternative fuel vehicles now approaching 1% of new vehicle production, however, they are in fact beginning to have a “ measurable and meaningful impact ” on overall new vehicle fuel economy and CO 2 emissions. In the analysis, EPA uses overall fuel economy in mpg equivalent (mpge) and tailpipe CO 2 emission values.

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EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

Green Car Congress

EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. mpg increase over the previous year and an increase of nearly 5 mpg since 2004. Since 1975, half of car production has consistently been within several mpg of each other.

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

Green Car Congress

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. The final model year (MY) 2012 adjusted, real world CO 2 emissions rate is 376 g/mi—a 22 g/mi decrease (-5.5%) relative to MY 2011.

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ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

From these coastdowns, the ORNL team developed vehicle dynamometer coefficients which enabled the execution of vehicle dynamometer experiments to determine the effect of the practices on vehicle fuel economy and emissions over standard drive cycles and at steady highway speeds. l/100 km) at 60 mph (97 km/h) to 33 mpg (7.1 l/100 km).

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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

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Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. Data for MY 2011 are final; data for MY 2012 are preliminary and based on projected vehicle production values provided to EPA by manufacturers. The fleet-wide average real world MY 2011 personal vehicle CO 2 emissions value is 398 g/mi and average fuel economy is 22.4

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Chrysler Group withdraws test PHEV fleet to upgrade battery packs after overheating issues; to use a different chemistry

Green Car Congress

No similar issues have occurred with 23 plug-in hybrid minivans deployed as part of a parallel project (also with Electrovaya batteries, ( earlier post ). In addition, the pickups are the first factory-assembled Advanced Technology Partial Zero-Emissions Vehicles (ATPZEVs) to pair PHEV technology with V-8 engines.

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