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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. More efficient gasoline engines. —Dan Akerson. Vehicle electrification.

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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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Hyundai Motor Group outlines new powertrain strategy: Smart Stream targeting 50% thermal efficiency

Green Car Congress

Hyundai Motor Group outlined its future powertrain development strategy at its International Powertrain Conference in Korea. At the conference, Hyundai Motor Group is displaying the first four engines and two transmissions from its forthcoming line-up of new Smart Stream powertrains. Beginning with the introduction of 1.6-liter

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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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New Nissan Qashqai in Europe to offer 12V MHEV and upgraded e-POWER powertrains

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DiG-T gasoline engine equipped with mild hybrid technology, but also e-POWER, Nissan’s non-plug-in series-hybrid electric powertrain in its European debut. This helps reduce the torque effort on the engine and improves fuel economy. DiG-T gasoline engine that was introduced to Qashqai in 2018.

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Hyundai Unveils Its First Production Gasoline Direct Injection Engine

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Theta II GDI, its first Gasoline Direct Injection engine before an audience of engineers attending the Ninth Annual Hyundai-Kia International Powertrain Conference in Korea. GDI application will subsequently be expanded across the gasoline engine family and applied to other Hyundai models. Theta II GDI. Click to enlarge.

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EIA: growing octane needs widen price difference between regular and premium in US

Green Car Congress

The difference between US average retail prices for premium and regular gasoline reached $0.50/gallon In the US, retail gasoline is usually classified by its octane rating: regular gasoline with a typical octane rating of 87 and premium gasoline with a typical octane rating of 91 to 93.

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