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Cummins progressing with lightweight downsized T2B2 diesel for pickup; 40% improvement in fuel economy over gasoline V8

Green Car Congress

At the US Department of Energy’s (DOE’s) Annual Merit Review meeting in Washington, DC last week, Michael Ruth from Cummins noted that the DOE program target for the project is a fuel economy (CAFE) target of 26 mpg (9.05 Earlier post.). l/100 km), and as such would not meet the GHG requirement of 28 mpg (8.4

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EIA: trends in downsized engine design leading to increased demand for higher-octane gasoline

Green Car Congress

Since 2013, the share of premium gasoline in total motor gasoline sales in the US has steadily increased to 11.3% Further, there is increasing interest among stakeholders in exploring the benefits of higher octane fuels that would lead to higher compression ratios which would lead to more efficient engines and reduced fuel consumption.

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Update on the ACCESS fuel efficient engine project; simulations find up to 48.9% improvement in fuel economy over baseline

Green Car Congress

At the recent 2013 SAE World Congress, engineers from Bosch and AVL presented papers on progress in the ACCESS project, describing the design, combustion development and controls development for a resulting 4-cylinder gasoline turbocharged direct injection (GTDI) engine with part-load HCCI capability. Engines 6(1)doi: 10.4271/2013-01-0287.

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Ford moving to vehicle testing with advanced 2.3L MiGTDI engine research project; Tier 3 SULEV30 target with 25% fuel economy improvement

Green Car Congress

The original project target was Tier 2 Bin 2 emissions, but in August 2013, it was agreed to shift that to the Tier 3 target—essentially the same with combined NO x and NMOG emissions, but more strict with CO and PM. Installed in a 2013 Fusion. Cycle-based CAE analysis of fuel economy contribution of critical technologies.

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Buick offering 2.0L direct-injection turbo option for 2013 Verano

Green Car Congress

For the 2013 model year, the Buick Verano (introduced in 2011), is offering buyers an Ecotec 2.0L Its closest competitor, the 2013 Acura ILX 2.4L, offers a peak of 170 lb-ft of torque, according to GM. The standard 2013 Regal four-cylinder engine also is equipped with eAssist. Acceleration from 0-60 mph is an estimated 6.2

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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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Viable exhaust-driven on-board ethanol reforming for improvements in fuel economy and emissions

Green Car Congress

Blending 25-50% of this low-temperature ethanol reformate with ethanol or E85 fuels enables dilute engine operation, resulting in substantial improvements in fuel economy and emissions. E85 and hydrous ethanol motor fuels are now widely available in the U.S. Engines Ethanol Fuel Efficiency Fuels'