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SmartDrive study finds eco-driving improves fuel economy 22% in commercial transportation fleets

Green Car Congress

The study evaluated 695 tractor-trailers, heavy-duty trucks and drivers in multiple US locations to assess the effect of driving performance on fuel consumption and the impact of training and in-vehicle instant feedback on improving fuel economy. Fuel Efficiency Study: Commercial Transportation.

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Pinnacle’s opposed-piston scooter engine can meet NOx target with lean operation and ignition delay; little fuel economy hit

Green Car Congress

For such small vehicle applications, manufacturers are seeking a fuel-efficient means of reducing engine-out NO x to avoid the cost of implementing a 3-way catalyst and closed-loop-controlled fuel injection system. Further, Pinnacle noted, recently developed hardware designed for additional lean limit extension is under test.

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Dana presenting VariGlide beltless transmission technology at International VDI Conference

Green Car Congress

Dana Holding Corporation will present its VariGlide planetary variator for beltless continuously variable transmissions (CVTs) at the International VDI Conference, to be held 21-22 June 2016, in Friedrichshafen, Germany. In 2012, Dana formed a strategic relationship with Fallbrook Technologies Inc.

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GM CEO outlines highlights of fuel economy plan through MY2016: lightweighting; more efficient gasoline and clean diesel engines, electrification

Green Car Congress

Within his talk about the need for a US energy policy at the IHS CERAWeek 2013 energy conference in Houston, GM Chairman and CEO Dan Akerson outlined some highlights of the company’s fuel economy plan through the 2016 model year. Natural gas as a vehicle fuel. —Dan Akerson. Vehicle electrification. Earlier post.).

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FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

Green Car Congress

Use of a variable compression ratio (VCR) could be one technology approach to reducing fuel consumption in highly boosted (e.g., downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio.

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GFEI report concludes 50% improvement in average fuel economy of entire global light duty fleet by 2050 is achievable; importance of the regulatory and fiscal environments

Green Car Congress

US NRC panel’s summary estimates of the potential reduction in petroleum consumption by 2035 for vehicle powertrain types assuming that the entire potential of these technologies is used to improve fuel economy rather than performance. This is equivalent to increasing fuel economy from about 30 to about 60 MPG, from 12.5

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Alumobility study: aluminum top hat provides automakers a lighter, sustainable alternative

Green Car Congress

Introduced at Automotive Circle’s annual EuroCarBody conference, the study’s aluminum top hat achieved 42% weight savings compared to the reference top hat of the current Audi e-tron electric SUV, which uses advanced (AHSS) and ultra-high-strength steels (UHSS). —Mark White, Executive Director of Alumobility.