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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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Ford introduces new Transit family in North America; emphasis on improved fuel economy in commercial vehicle segment

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Ford unveiled the full new 2014 Transit family of commercial vehicles for North America, comprising the full-size Transit, the Transit Connect Van, and the Transit Connect Wagon (shown earlier, earlier post ). Ford says that the Transit will achieve an average of 25% better fuel economy and haul at least 300 pounds more than today’s E-Series.

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ExxonMobil: diesel will surpass gasoline as the number one global transportation fuel by 2020

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Diesel will surpass gasoline as the number one transportation fuel worldwide by 2020 and continue to increase its share through 2040, according to ExxonMobil’s recently published Outlook For Energy: A View To 2040. About 80% of the growth in commercial transport demand will come from developing nations, according to the forecast.

Gasoline 383
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Transonic demonstrates supercritical gasoline operation under low load, medium load, and high speed low load conditions; simulated vehicle fuel economy of 48.8 mpg

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Engineers at Transonic Combustion, a start-up developing a fuel efficient supercritical (SC) fuel injection and combustion system—Transonic Combustion, or TSCi ( earlier post )—have demonstrated the TSCi process using gasoline fuel at low load without EGR, medium load with EGR, and high speed low load with EGR.

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Studies highlight effects of different gasoline components on fuel economy, combustion and emissions

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Researchers at Jilin University (China) have investigated the effect of gasoline components on fuel economy, combustion and emissions in a GDI (gasoline-direct-injection) engine. The team subsequently followed up this first study with a second, exploring the effects in a PFI (port-fuel-injection) engine.

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EPA, DOT unveil the next generation of fuel economy labels

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Sample label for a plug-in gasoline hybrid-electric vehicle, which features fuel economy ratings for both electricity and gasoline. The US Department of Transportation (DOT) and the Environmental Protection Agency (EPA) unveiled the next-generation of fuel economy labels. Click to enlarge.

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Obama Administration announces first fuel economy and GHG standards for medium- and heavy-duty vehicles

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For purposes of the new HD National Program, the heavy-duty fleet incorporates all on-road vehicles rated at a gross vehicle weight at or above 8,500 pounds, and the engines that power them, except those covered by the current GHG emissions and Corporate Average Fuel Economy standards for model year 2012-2016 passenger vehicles.