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Split injection Miller cycle with boost decreases knock tendency and increases torque in downsized engine

Green Car Congress

Researchers at Tianjin University in China report that combing split injection to the Miller cycle with boost pressure can effectively decrease the knock tendency and increase the engine torque in a downsized spark-ignition engine. Their paper is published in the journal Fuel. 2017.11.006.

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McMaster team reviews progress on hybrid-specific engine technologies

Green Car Congress

A team from McMaster University in Canada has published a comprehensive review of recent progress in low-temperature combustion (LTC), alternative fuels (AF), over-expansion Atkinson cycle, and waste heat recovery (WHR) techniques as applied to hybrid-specific engines. —Wang et al.

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Skeleton Technologies appoints former GM Technical Fellow Dr. Scott Jorgensen as a Board advisor; curved graphene ultracaps

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In a 2010 paper published in the ACS journal Nano Letters , researchers from Nanotek Instruments, Ångström Materials and Dalian University of Technology (China) observed that graphene is an outstanding candidate electrode material for supercapacitors. This is also an advantage because cooling systems can be downsized or removed altogether.

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DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

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Volvo Technology of America LLC will develop and demonstrate a tractor trailer combination with lightweight cab that achieves the freight efficiency goal using alternative engine designs and a variety of system technologies. Ohio State University. Iowa State University. University of Pittsburgh. Description. 1,250,000.

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Tsinghua studies on alcohol-gasoline dual fuel engines show fuel efficiency and particle number benefits

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Researchers at Tsinghua University in China are studying the effects of Dual-Fuel Spark Ignition (DFSI) combustion fueled with different alcohols and gasoline. Alternatively, in the second study, gasoline–alcohol DFSI is based on PFI of gasoline and DI of alcohols.).

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Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

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In a policy analysis in the ACS journal Environmental Science & Technology , researchers from the Universities of Cambridge, Exeter and Oxford argue that, due to the increased emphasis on alternative fuels with drastically differing energy densities, vehicle efficiency should be evaluated based on energy rather than volume.

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NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined

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Michael Sivak of the University of Michigan Transportation Research Institute (UMTRI) examined several topics related to fuel economy and advanced vehicle technologies. 52% of respondents said it didn’t matter to them how a vehicle saves fuel and reduces emissions. Recommendations. National Research Council.

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