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NASA Glenn develops automated flywheel pulse-and-glide system; improving fuel economy up to 40-100%

Green Car Congress

Innovators at NASA’s Glenn Research Center have developed an automated pulse-and-glide technique using a flywheel energy storage system for on-road vehicles; the technology, which NASA Glenn says can improve fuel economy over existing internal combustion or battery hybrid systems by 40-100%, is available for licensing.

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Tech: Renewable Diesel: A Sustainable Substitute

Clean Fleet Report

Renewable Diesel in UPS Fleet Vehicles In 2015, the National Renewable Energy Laboratory (NREL), in cooperation with United Parcel Service (UPS) and Clean Cities’ National Clean Fleets Partnership, compared the fuel economy and emissions impact of renewable diesel versus petroleum diesel in fleet vehicles.

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CMU study shows autonomous vehicle algorithms can have considerable effect on fuel economy; need for new approaches in testing

Green Car Congress

Autonomous vehicle driving behavior can have a considerable effect on fuel economy. However, the study also showed that autonomous vehicle (AV) technology following algorithms designed without considering efficiency can degrade fuel economy by up to 3%. —Mersky and Samaras (2016).

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Volkswagen Millerized 1.5 TSI ACT BlueMotion gasoline engine offers diesel-like fuel economy; derivatives may be applied in hybrid systems

Green Car Congress

Volkswagen has developed and deployed a gasoline engine that offers diesel-like fuel economy but is significantly cheaper to buy. TSI ACT BlueMotion delivers 96 kW / 130 PS with combined fuel consumption of 4.8 Currently applied in the new Golf and Golf Variant ( earlier post ), the 1.5 l/100 km (49 mpg US).

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Jeep reveals 2022 Grand Cherokee plug-in hybrid, teases future tech for off-road brand

Green Car Reports

Although the brand didn’t yet reveal specs for electric range or fuel economy for the new plug-in, it plans to provide an official premiere for the model at the New York auto show next month.

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Toyota boosts 2023 Corolla Hybrid; starting MSRP $1,250 lower than 2022 Corolla Hybrid

Green Car Congress

The revised hybrid system boosts output to 134 hp (up from 121) and 156 lb-ft (212 N·m) of torque (up from 146 lb-ft / 200 N·m), while EPA-estimated combined fuel economy reaches 47 mpg. The EPA combined fuel economy rating is 44 mpg. Upgraded Safety Tech: TSS 3.0.

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Tech: New Technology Reduces Diesel Emissions

Clean Fleet Report

A new technology may take the already quite clean (especially compared with engines of just a little more than a decade ago) engines to a level that reduces smog-producing emissions while increasing fuel economy and yet not losing any performance. The Test Procedures. That standard is scheduled to drop further in 2027.

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