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

Green Car Congress

The new Polo GTI, in what Volkswagen is calling “textbook downsizing”, is powered by a new 1.4-liter liter TSI with gasoline direct injection plus turbo- and supercharging. 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. A Study of Gasoline-Alcohol Blended Fuels in an Advanced Turbocharged DISI Engine. ( Cairns et al. SAE 2009-01-0138).

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Promising Delphi 1st-gen Gasoline Direct Injection Compression Ignition engine meeting ultra fuel efficient program targets

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GDCI engine was significantly better than advanced production spark injection gasoline engines, and comparable to very efficient hybrid vehicle engines at their best efficiency conditions (214 g/kWh). This early work established that gasoline-like fuels with high resistance to autoignition are preferred for PPCI. Combustion stability.

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Torotrak to present extreme engine downsizing solution at Dresden supercharging conference

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In comparison with the incumbent fixed-ratio positive-displacement supercharger on a 1.0L In comparison with the incumbent fixed-ratio positive-displacement supercharger on a 1.0L V-Charge system with mechanical variable drive outperforms conventional boosting methods on downsized gasoline engine. Click to enlarge.

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ICCT-led analysis of turbocharged, downsized engine tech finds lower costs and greater benefits than 2012 EPA/NHTSA analysis; 48V, e-boost, Miller

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A new white paper published by the International Council on Clean Transportation (ICCT), in collaboration with Eaton, Ricardo, JCI, BorgWarner, Honeywell, and the ITB Group, analyzes current turbocharged, downsized gasoline engine technology developments and trends.

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Hyundai introduces 3rd generation Tucson ix hydrogen fuel cell vehicle; significant increase in range and fuel efficiency

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The Tucson ix FCEV can travel more than 400 miles (644 km) on a single fueling, a 76% improvement over its predecessor, and a range equal to a gasoline-powered car. It achieves gasoline equivalent fuel efficiency of more than 70 mpg US (3.36 Comparison of new Tucson ix FCEV (3rd generation) and Tucson FCEV (2nd generation.

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Hyundai completes development of 3rd generation fuel cell vehicle; targeting mass production in 2015

Green Car Congress

The SUV has a full-tank range of 650 kilometers (404 miles)—equal to that of a gasoline-powered car. The new model gets gasoline equivalent fuel efficiency of 31 kilometers per liter (73 mpg US), a 15% improvement over the previous version. Comparison of new Tucson ix FCEV (3rd generation) and Tucson FCEV (2nd generation).

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