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Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years

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Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 l/100km), because of the decrease in vehicle load, the occupant fuel economy only improved by 17% (from 24.8 Combining these two effects yields a reduction of about 14% in the amount of fuel used.

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Honda, American Electric Power developing 2nd life applications for used EV batteries

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Honda is conducting research with Ohio-based electric utility American Electric Power to develop a network of used electric vehicle (EV) batteries that could be integrated into AEP’s electricity system. —Ryan Harty, manager of Connected and Environmental Business, American Honda Motor Co.,

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

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For example, we will account for regional differences in the total cost of ownership related to charging installation costs, electricity and gasoline costs, temperature effects on fuel economy, and insurance as well as federal and state EV incentives and policies. Refueling patterns based on driver time valuation.

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Honda Study Finds Insights Eco Assist System Results in Average 10% Improvement in Fuel Economy After 300 Drives, Up to 20% Max

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Honda Ecological Drive Assist System (Eco Assist). A study by Honda in Japan found that drivers using the new Eco Assist system on the new Honda Insight hybrid improved their fuel economy on average by 10%, up to a maximum of 20%, after 300 drives. Click to enlarge. The results were drawn from some 1.7

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Study Assesses Product Attribute Trade-offs and Technological Progress; Meeting Proposed Obama Fuel Economy Standards Will Require Downsizing and Change in Fleet Mix

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Changes in the attributes (clockwise from upper left, weight, power, fuel economy and torque) of the Honda Accord over time as an example of fleet trends in the US. In contrast, fuel economy actually increased by 15% during that period. Knittel, 2009. Click to enlarge. Knittel, 2009.

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UC Davis Study Finds That Ultracapacitor-based Micro-Hybrid Systems Can Deliver Substantial Fuel Economy Improvements

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Using a micro-hybrid system featuring carbon/carbon ultracapacitor units as energy storage can result in significant increases in fuel economy over a baseline conventional vehicle, according to a study by Dr. Andrew Burke at UC Davis. Using a motor power of 3 kW reduced the fuel economy improvement on the FUDS by more than 50%.

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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. The study investigated the the WTW energy and emissions from the use of natural gas in CNGVs with a range of CNGV fuel economy and natural gas compressor efficiency.