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ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

Green Car Congress

The ICCT team—John German and Aaron Isenstadt—concluded that diesels have and will retain two significant advantages over gasoline engines: significantly better fuel economy and cargo hauling and towing ability. Diesels offer a promising pathway for compliance and another option in manufacturers’ toolboxes. ”. Background.

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Co-Optima releases capstone report on first 4 years of work

Green Car Congress

For the past four years, the Co-Optimization of Fuels & Engines (Co-Optima) National Laboratory consortium has focused research efforts primarily on turbocharged (boosted) spark-ignition (SI) engines for light-duty vehicles. compression ratio, extent of downsizing, etc.). What Fuels Should We Make?

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Advanced Turbocharged, Direct Injected Gasoline Engines Poised to Take on Diesels in US and in Europe for Reduced Fuel Consumption and Emissions

Green Car Congress

Additionally, suggested one of the speakers, advanced SIDI (spark-ignited, direct-injection) engines can take light-duty market share back from diesels in Europe based on the same trends. Comparison of Emission Standards (g/mi). . don’t think we expect to see a large market share of light duty diesel in the short term.

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CALSTART survey of major auto suppliers finds 70% don’t want US to change CAFE targets; split on amount of electrification needed

Green Car Congress

When presented with a list of technologies analyzed within a National Academies of Science report ( earlier post ) that might be used to meet fuel-efficiency standards, suppliers picked turbocharging and engine downsizing, along with higher-speed automatic transmissions, as the most critical.

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Full lifecycle CO2 of new Mercedes C-Class 10% less than outgoing model

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CO 2 emissions of the C 180 in comparison to its predecessor [t/car]. Over the entire lifecycle of the C 180, the lifecycle analysis yields a primary energy consumption of 521 gigajoules (corresponding to the energy content of around 16,000 liters of gasoline); an environmental input of approx. Source: Mercedes-Benz. Click to enlarge.

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Frost Sullivan Projects That About 80% of European Vehicle Sales Will Be in the 150 g/km CO2 Band by 2015; EVs as a Strategy of Premium Automakers

Green Car Congress

As a point of comparison, the US EPA’s proposed national CO 2 emissions standards for light-duty vehicles under section 202 (a) of the Clean Air Act would require these vehicles to meet an estimated combined average emissions level of 250 grams/mile of CO 2 —155.26 g/km—in model year 2016.

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Taking another look at methanol as an alternative transportation fuel for the US

Green Car Congress

In comparison, they noted, the technology for bio-chemical ethanol production from cellulosic biomass is not sufficiently developed yet. There is no strong advocacy for methanol (unlike ethanol) as a transportation fuel; therefore, they said, it has been displaced by ethanol as oxygenate of choice in gasoline blends. It is a safe fuel.