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BorgWarner suggests Valve-Event Modulated Boost system can offer 6-17% fuel economy benefit over already downsized and turbocharged engines

Green Car Congress

The VEMB system uses a concentric camshaft, blow-down manifold and scavenge manifold to separate the exhaust event into two phases: high-energy blow-down to the turbo without pumping losses, and high-hydrocarbon scavenge to the EGR system. to 2 ratio points and maintain the same knock limit for an additional 3-4% improvement in fuel economy.

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

Green Car Congress

The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. The demonstration vehicle, provided by Nissan North America, is a 2010 Nissan Titan originally equipped with a gasoline V8 engine. Test cycle fuel economy (mpg).

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Interim NREL Report on In-Use Azure Balance Gasoline Hybrids in FedEx Fleet Finds Substantially Lower Tailpipe Emissions, Similar Fuel Economy to Diesels

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Barnitt (2010) Click to enlarge. Fuel economy was similar between the gHEVs and diesel vehicles, except for the highest kinetic intensity drive cycle where the hybrid exhibited ~20% higher fuel economy. The electric power train is a higher efficiency option for these transient events.

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Green Grand Prix Plans Double Header Again in 2010

Green Car Congress

Drivers of alternate fueled vehicles, hybrids and fuel-efficient, gasoline-powered cars will have two opportunities to test their vehicles at the 6 th Annual Green Grand Prix in Watkins Glen, NY on 8 May. Fuel Economy Run entrants also will return to the Racing Research Center. Click to enlarge.

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Green Grand Prix Plans Double Header Again for 2010

Green Car Congress

Drivers of alternate fueled vehicles, hybrids and fuel-efficient, gasoline-powered cars will again have two unique opportunities to test their vehicles at the 6 th Annual Green Grand Prix in Watkins Glen on 8 May. Other activities include educational displays, speakers, cars on display, exhibits, music and food.

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UMTRI study suggests possibility of substantial gains in real-world fuel efficiencies through modification of driver behavior

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The differences between the mean consumption rate and the fuel consumption rates for the 10 th and 90 th percentile drivers were 13 and 16 percent, respectively, of the mean value. 2010) Using naturalistic driving data to assess variations in fuel efficiency among individual drivers. UMTRI-2010-34. LeBlanc, David J.

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IEA: carbon intensity of global energy supply has barely changed in last 20 years; “window of opportunity in transport”

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Since 1990, however, the ESCII (2010 = 100) has remained essentially static, changing by less than 1%. tCO 2 /toe); in 2010 it was 56.7 The IEA said that this reflects the continued domination of fossil fuels—particularly coal—in the energy mix and the slow uptake of other, lower-carbon supply technologies.

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