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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. —Han et al.

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NHTSA proposes updated CAFE standards for LDVs, fuel-efficiency standards for HD pickups and vans

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The proposal would also drive fuel efficiency improvements for heavy-duty pickup trucks and work vans. NHTSA’s proposed fuel economy standards complement and align with the Environmental Protection Agency’s recently proposed emissions standards for similar vehicle fleets.

Standards 283
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EPA annual trends report finds new vehicle fuel economy at record 24.1 mpg; new powertrain technologies rapidly gaining share

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EPA released the latest edition of its annual report on trends in CO 2 emissions, fuel economy and powertrain technology for new personal vehicles in the US. Fuel economy has now increased in eight of the last nine years; average carbon dioxide emissions are also at a record low of 369 g/mile in model year 2013.

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UPS updates 125 Workhorse E-GEN series hybrid electric step vans with smaller genset engine for better fuel economy

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UPS announced an update to 125 Workhorse E-GEN series hybrid electric delivery trucks that improve fuel economy as part of the company’s broader Rolling Laboratory approach. The smaller engine will improve fuel economy, however. liter internal combustion engine (ICE) served as the genset engine.

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US EPA rates Nissan LEAF fuel economy as 99 mpg-equivalent (combined); 73-mile range

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The new fuel economy label also notes consumption of 34 kWh per 100 miles. EPA fuel economy label for the LEAF. The label also puts the LEAF as best in the mid-size car class in terms of fuel economy, greenhouse gas emissions, and emissions of criteria pollutants. Click to enlarge.

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Cummins to begin electrified powertrain delivery in 2019; alternative fuels and power, digitalization

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Cummins has also invested in exploratory projects focused on Proton Exchange Membrane and Solid Oxide Fuel Cell technologiesboth with increasing potential to offer superior power density over the traditional internal combustion engine. Digitalization, data & analytics.

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EIA: China promoting both fuel efficiency and alternative-fuel vehicles to curb growing oil use

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To counter this trend triggered by China’s rapid motorization, the Chinese government is adopting a broad range of policies, including improvements in the fuel economy of new vehicles and the promotion of alternative-fuel vehicles, EIA notes. China vehicle sales and gasoline consumption. Source: EIA. Click to enlarge.