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PNNL team develops onboard fuel separation technology to enable octane-on-demand for improved fuel economy

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Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. Unfortunately, these engines exacerbate engine knock.

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EIA: fuel economy standards drive down projected gasoline use; diesel use, product exports rise

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In the US Energy Information Administration’s Annual Energy Outlook 2014 (AEO2014) Reference case, more-stringent vehicle fuel economy standards contribute to a decline in motor gasoline consumption through 2040. The Reference case projects an increase in VMT that, all else equal, would increase motor gasoline fuel consumption.

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Tula presenting diesel Dynamic Skip Fire technology at Future Diesel Powertrain Summit in Shanghai

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Tula Technology is presenting its diesel Dynamic Skip Fire (dDSF) technology ( earlier post ) at the 4 th Future Diesel Powertrain Summit China 2020 on 24-25 September 2020 in Shanghai, China. Engine controller with dDSF: Tula’s proprietary SW for smooth, efficient operation and fuel economy gains.

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EIA: fuel economy improvements bring diminishing returns in fuel savings

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Improving fuel economy exhibits diminishing returns in fuel savings, according to a brief analysis by the US Energy Information Administration (EIA). Similarly, the fuel and cost savings of improving fuel economy from 12 mpg to 15 mpg are the same as increasing from 30 mpg to 60 mpg.

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Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

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Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 Compared with other gasoline engines, the intake valves of the 1.5 l/100 km (49 mpg US).

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Cummins & Tula demonstrate Diesel Dynamic Skip Fire (dDSF) cylinder deactivation; up to 66% reduction in NOx on CARB LLC #7

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developer of Dynamic Skip Fire cylinder deactivation technology ( earlier post ), collaborated on a significant technical demonstration of diesel Dynamic Skip Fire (dDSF) cylinder deactivation. Cummins’ X15 Efficiency Series 6-cylinder diesel engine enhanced with Tula’s diesel Dynamic Skip Fire (dDSF). Cummins Inc.

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Cummins ATLAS light-duty diesel surpasses fuel economy targets, with criteria emissions lower than Tier 2/Bin 2

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The Cummins team not only surpassed all fuel-economy targets, but also achieved criteria emissions lower than the stringent Tier 2/Bin 2 levels. The demonstration vehicle, provided by Nissan North America, is a 2010 Nissan Titan originally equipped with a gasoline V8 engine. Test cycle fuel economy (mpg).