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VW Premieres New Polo GTI; Textbook Downsizing Results in 25% Reduction in Fuel Consumption from Predecessor

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The new Polo GTI, in what Volkswagen is calling “textbook downsizing”, is powered by a new 1.4-liter L/100km (40 mpg US)—equivalent to CO 2 emissions of 139 g/km. By comparison, its direct predecessor with regard to power—equipped with a 132 kW 1.8-liter The new Volkswagen Polo GTI. Click to enlarge.

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Study Finds Strong Synergy Between Spark Ignition Engine Downsizing and Low-to-Moderate Alcohol Blend Fuels

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A study by engineers from Mahle Powertrain Ltd and BP found strong synergy between spark ignition (SI) engine downsizing and fuel containing low-to-moderate amounts of alcohol, including ethanol and butanol. The team presented a paper on their work at the recent SAE 2009 World Congress in Detroit. Cairns et al. SAE 2009-01-0138).

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Co-Optima releases capstone report on first 4 years of work

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This research involves identifying the fuel properties and engine parameters that mitigate knock and emissions, while maximizing boosted SI efficiency and performance. compression ratio, extent of downsizing, etc.). Of the fuel properties investigated, these six were found to have the most impact on engine efficiency and emissions.

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ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

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The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal ( earlier post ), has published a new analysis of developments and trends in advanced diesel engine technology. miles per gallon in model year 2016, and 49.1

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Full lifecycle CO2 of new Mercedes C-Class 10% less than outgoing model

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CO 2 emissions of the C 180 in comparison to its predecessor [t/car]. For CO 2 emissions—and likewise for primary energy consumption—the use phase dominates with a share of 78 and 74% respectively. Production of the new C-Class results in a higher CO 2 emissions than in the case of the predecessor (7.3

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Frost Sullivan Projects That About 80% of European Vehicle Sales Will Be in the 150 g/km CO2 Band by 2015; EVs as a Strategy of Premium Automakers

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A new report from Frost & Sullivan, Implementation Roadmap of CO 2 Tax Banding in European Countries and Impact Analysis on Powertrain and Green Technology Adoption , finds that about 80% of the European vehicle sales is expected to be in the less than 150 g/km CO 2 emission band by 2015. g/km—in model year 2016. Earlier post.)

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

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A range of aftertreatment technology options are available to automakers seeking to achieve compliance with the impending EU Real Driving Emissions (RDE) regulations, according to the results of a Ricardo research project presented recently at the SIA Powertrain international conference and exhibition in Rouen, France. liter diesel engine.

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