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Simulation study finds “Millerizing” the Scuderi split-cycle engine could enable 50% engine downsizing with retention of power and torque, along with reduced fuel consumption

Green Car Congress

Simulation study finds Miller version of Scuderi engine can deliver twice the BMEP as naturally aspirated version, theoretically enabling 50% downsizing while maintaining performance. Applying the Miller cycle to the Scuderi engine (right) entails downsizing of the compression cylinder. Source: Scuderi. Click to enlarge.

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JD Power 2012 APEAL highlights ongoing downsizing trend for new car buyers in US; increasing satisfaction with smaller vehicles

Green Car Congress

The 2012 APEAL Study finds that 27% of new-vehicle buyers who replaced a vehicle downsized—i.e., The downsizing trend also has an impact on owner satisfaction with the fuel economy of their new vehicle. During the past six years, vehicle appeal, as measured by the APEAL Study has significantly increased.

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Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

Green Car Congress

Based on detailed model-level data for US light-duty vehicles from 1980 to 2006, a recent analysis by a UC Davis researcher found that if weight, horsepower and torque had been held at their 1980 levels, fuel economy for both passenger cars and light trucks could have increased by nearly 50% from 1980 to 2006. Knittel, 2009.

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

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Their study is publishedin the ACS journal Environmental Science & Technology. This study aims to better characterize the toxicity of PM from GDI vehicles and the potential for catalyzed GPFs to reduce this toxicity. In the study, the team used two MY 2016 passenger cars. In the study, the team used two MY 2016 passenger cars.

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Ricardo: achieving light-duty diesel RDE NOx compliance in urban driving is possible, at a price

Green Car Congress

Future RDE emissions legislation and fleet average CO 2 targets represent a challenge for automakers wishing to provide cost-effective light duty diesel vehicles. The introduction of RDE regulations in Europe represents a very significant challenge, particularly for those automakers offering light duty diesel products.

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Study finds highly-turbocharged alcohol-fueled DISI engines could be more efficient than diesels

Green Car Congress

Highly turbocharged alcohol-fueled direct-injection spark-ignition (DISI) engines operated at a high compression ratio could be as or more efficient than diesel engines while also providing advantages of lower vehicle cost, lower emissions and higher power, according to a recent modeling study by Leslie Bromberg and Daniel Cohn at MIT.

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Federal-Mogul lean tool steel offers an easily-machined, durable, valve seat material for downsizing and alt-fuel engine demands

Green Car Congress

Federal-Mogul Corporation has developed a cost-effective new material for valve seat inserts that helps manufacturers meet the durability demands of engine downsizing and alternative or high-octane blended fuels.