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Machine learning PODA model projects the impact of COVID-19 on US motor gasoline demand

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The PODA model is a machine-learning-based model to project the US gasoline demand using COVID-19 pandemic data, government policies and demographic information. The Motor Gasoline Demand Estimation Module quantifies motor gasoline demands due to the changes in travel mobility. —Ou et al.

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Responsible Battery Coalition and U Michigan launch study to compare electric and gas vehicle lifetime costs

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The Responsible Battery Coalition, in partnership with the University of Michigan Center for Sustainable Systems, launched a comprehensive research project to compare the total cost of ownership of gas and electric vehicles (EVs). Gregory Keoleian, Director of the Center for Sustainable Systems at the University of Michigan.

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U-M researchers challenge USPS EV environmental study

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A new University of Michigan study finds that making the switch to all-electric mail-delivery vehicles would lead to far greater reductions in greenhouse gas emissions than previously estimated by the US Postal Service (USPS). Earlier post.). The U-M team’s paper is published in Environmental Science & Technology. Craig, and Gregory A.

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Pioneer Natural Resources adding 225 bi-fuel Westport WiNG natural gas F250s to fleet

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Pioneer Natural Resources, an oil and gas exploration and production company, is adding 225 bi-fuel, Westport WiNG natural gas powered Ford F250 Super Duty trucks to its fleet. Earlier post.)

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Study finds hitting thermodynamic sweet spot in dilute, boosted gasoline engines has potential for fuel economy gains between 23% and 58%

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A study by a team led by Dr. Dennis Assanis at the University of Michigan suggests that accessing the “thermodynamic sweet spot” in high-efficiency, dilute, boosted gasoline engines has the potential for vehicle fuel economy gains between 23% and 58%. Their paper is published in the International Journal of Engine Research.

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Study finds all-electric rideshare fleet could reduce carbon emissions, but increase traffic issues

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Lead author Aniruddh Mohan and colleagues wanted to develop a method that evaluated the life-cycle costs and benefits for two battery-powered ridesource fleets and a gasoline-powered one. The researchers collected simulated rides provided by three fleets: gasoline-powered, and electric-powered with either 40 kWh or 60 kWh battery packs.

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Michigan State researchers propose SI-HCCI transition strategy for HCCI-capable SI engine

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the charge air was heated by a manifold charge cooler heated by the engine coolant; and a test gasoline fuel with a research octane number of 85 was used for all the experiments conducted. During the transition and steady-state HCCI operation, they maintained the normalized air-to-fuel ratio between 1.0

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