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Delphi Powertrain Study Concludes 3-Cylinder Turbo Gasoline Direct Injection Engine Offers a High-Value NOx and CO2 Solution for Cost-Sensitive Vehicle Segments

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compacts under 1,400 kg in weight—a stoichiometric 3-cylinder turbocharged gasoline direct injection (GDI) engine offers an optimal combination of cost, lower emissions and reductions in fuel consumption, according to an analysis by Delphi Powertrain presented at the recent SAE 2010 World Congress. Earlier post.).

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Ford study suggests GDI engines can meet coming California and US PM emissions standards over 150k miles; more work to be done

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PM mass emissions rates for the FTP and US06 drive cycles as function of vehicle mileage. Homogeneous GDI provides fuel efficiency benefits from charge air cooling, more facile turbocharging, and the downsizing that these permit. These efforts are yielding reductions in PM emissions, but this is still a work in progress.

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Peugeot Launches New Marque Plan with Downsizing, Hybrids and Plug-ins for Two-, Three- and Four-Wheeled Vehicles; Unveils SR1 Hybrid Concept

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To achieve its goals, Peugeot is relying on a new products strategy that includes electric propulsion (the i0n i-MiEV-derived electric car) and E-Vivacity scooter from 2010; diesel hybrid in the 3008 from 2011 ( earlier post) ; e-HDi (microhybrid) from 2011 on the entire diesel range; and a plug-in diesel hybrid in 2012. Earlier post.).

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Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

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Some of the best passenger vehicles today, the ones called PZEVs, are pretty close to zero emissions. Under California’s vehicle emissions ratings, PZEVs (Partial Zero Emission Vehicles) meet SULEV (Super Ultra Low Emission Vehicle) tailpipe emission standards and also have zero evaporative emissions.

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Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

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Renault held a “2010 Environment Workshop” last week to showcase its progress across its range of vehicles’ full lifecycle through the Renault eco² program. Renault’s engineers worked particularly hard on tuning the 85hp and 105hp dCi engines to optimize CO 2 emissions without detracting from performance. Select Engines. dCi engines.

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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

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However, while Mazda plans to offer hybrid vehicles in the medium-term, its engineers are pushing hard to increase the efficiencies of both the gasoline and diesel platforms, moving toward what they call “the ideal Internal Combustion Engine.” Extreme compression ratio rather than downsizing. Although downsizing—i.e.,

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

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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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