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CARB releases results of multi-year E15 study; multiple air quality benefits with slight reduction in fuel economy

Green Car Congress

The California Air Resources Board (CARB) has released the results of a multiyear study evaluating exhaust emissions from the use of California Reformulated Gasoline (CaRFG) that contains 15 volume percent ethanol (E15). California currently limits the ethanol content of gasoline to 10 percent. The study used two fuels—an E10 and E15.

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Study finds engines emit exhaust nanoparticles even when not fueled during engine braking

Green Car Congress

Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.

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Environment Canada study finds vehicle exhaust a significant source of isocyanic acid; suggests consideration of new emission standard

Green Car Congress

Researchers at Environment Canada have found that vehicle exhaust is a significant source of isocyanic acid (HNCO), a toxic gaseous acid that is a product of various forms of combustion and a potential health concern. Automobile exhaust is also a known source of inorganic acids such as nitric (HNO 3 ) and nitrous (HONO) acids.

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Shell/AirFlow Starship hyper-fuel efficient Class 8 truck to make cross-country run

Green Car Congress

This next-generation concept truck features a custom, aerodynamic design and aims to demonstrate improvements in fuel economy for Class 8 trucks. Special Starship features include: Bespoke 100% hyper-aerodynamic carbon fiber cab. Custom automatic tire inflation system for consistent tire pressure and optimal fuel economy.

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Audi introduces new CNG A3 Sportback

Green Car Congress

Its turbocharger with variable turbine geometry makes optimal use of the exhaust gas energy for early and harmonious torque development. The ultra high-strength outer shell comprises two layers: an inner layer of carbon fiber-reinforced polymer (CFRP) and an outer layer of glass fiber-reinforced polymer (GFRP).

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NRC Canada team investigates effect of gasoline particulate filter on PM from light-duty GDI engine

Green Car Congress

A team led by researchers from the National Research Council Canada has investigated the effect of the use of a gasoline particulate filter on the size and morphology of PM emitted from a light-duty gasoline-direct-injection (GDI) vehicle over the FTP-75 and US06 transient drive cycles. Credit: ACS, Saffaripour et al. Click to enlarge.

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Canada aligns with US on light-duty vehicle GHGs, Tier 3 regulations and heavy-duty vehicle fuel efficiency

Green Car Congress

The final Regulations Amending the Passenger Automobile and Light Truck Greenhouse Gas Emission Regulations for model year 2017 and beyond will be published in the Canada Gazette, Part II, on 8 October. Once fully phased-in, the Tier 3 exhaust emission standards would be as much as 80% lower than current Tier 2 emission standards.

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