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Study finds catalyzed gasoline particulate filters effective at reducing particulate and PAH emissions from GDI engines

Green Car Congress

The found that using a GPF did not show any fuel economy and CO 2 emission penalties, while the emissions of total hydrocarbons (THC), carbon monoxide (CO), and nitrogen oxides (NOx) were generally reduced. liter downsized turbocharged centrally-mounted direct injection engine. Yang et al. Click to enlarge.

Gasoline 253
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Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

Green Car Congress

The EU goal is to introduce the WLTP by 2017 if possible and no later than 2020 to coincide with the 95 g/km requirement. This means that in addition the power demand is more difficult to achieve with engine downsizing and transmission down-speeding alone. the Worldwide harmonized Light vehicles Test Procedures (WLTP).

Standards 257
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Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

Green Car Congress

The Freightliner SuperTruck uses a downsized and downsped 10.7-liter This reduces friction, and increases efficiency and fuel economy. Drivers can run the AC for more than an hour without turning the engine on, resulting in significant reductions in fuel consumption. DTNA SuperTruck technology elements. Click to enlarge.

2009 150
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Study finds fleet switch from PFI to GDI engines will result in net reduction in global warming

Green Car Congress

The study, by a team of researchers from Carnegie Mellon University, University of Georgia, Aerodyne Research, California Air Resources Board (ARB), Ohio State University, UC Berkeley, and UC San Diego is published in the ACS journal Environmental Science & Technology. For our fleet, increases in the fuel economy of 1.6% (0.5−2.4%;

Fleet 207
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NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined

Green Car Congress

The analysis used by federal agencies to set standards for fuel economy (CAFE) and greenhouse gas emissions for new US light-duty vehicles from 2017 to 2025 was thorough and of high caliber overall, according to a new report from the National Research Council. only the MY 2017-2021 CAFE standards are final. mpg by 2025.

Standards 150
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DOE Co-Optima initiative publishes report reviewing first 12 months; progress on fuels and engines

Green Car Congress

At a compression ratio of 12:1, use of 98 RON fuels (including E20) yielded significant fuel efficiency improvements relative to 92 RON fuel, offering the possibility of fuel economy parity with E10 fuels for some driving cycles. Higher fuel laminar flame speed expands dilute or lean operation.

Engine 150