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ORNL study quantifies fuel economy costs of common driver practices and vehicle alterations

Green Car Congress

Researchers at Oak Ridge National Laboratory (ORNL) have quantified the fuel economy effects of some common driver practices and vehicle accessories or alterations—including underinflated tires, open windows, and rooftop and hitch-mounted cargo. They presented their results in a paper at SAE 2014 World Congress in Detroit.

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ORNL researchers quantify the effect of increasing highway speed on fuel economy

Green Car Congress

This website, jointly maintained by the US Department of Energy and the US Environmental Protection Agency (EPA), provides information such as official EPA “window label” fuel economy estimates for city, highway, and combined driving for all U.S.-legal legal light-duty vehicles from 1984 to present. 50 to 60 mph.

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Downspeeding and supercharging with transmission optimization can deliver fuel economy improvement over downspeeding and turbocharging

Green Car Congress

Researchers from Southwest Research Institute (SwRI) and Eaton have demonstrated the application of downspeeding and supercharging a diesel vehicle, in conjunction with optimizing transmission gear ratios and the shift schedule, to deliver a greater improvement in fuel economy than a downsped and turbocharged configuration.

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Ford C-MAX Hybrid EPA-rated at 47 mpg city, 47 mpg highway; plug-in Energi version offers 85 mph top electric speed

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100km), bettering the fuel economy of the Toyota Prius v by 3 mpg on the city cycle and 7 mpg on the highway (5 mpg combined). We’ve done this with innovation—represented by nearly 500 hybrid patents—while driving costs down 30 percent so we can bring these fuel-saving vehicles to more customers.

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Infiniti presents M35 Hybrid at LA Show

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Infiniti presented its first production hybrid performance luxury sedan, the 2012 Infiniti M35h ( earlier post ) at the Los Angeles Auto Show. The new Infiniti Hybrid offers more than 350 hp (361 kW) and estimated fuel economy of 30 mpg highway (7.8 L/100km), 25 mpg (9.4 L/100km) city and 27 mpg (8.7 L/100km) combined.

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Audi presents A6 L e-tron PHEV concept at Auto China in Beijing

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Audi is presenting the Audi A6 L e-tron concept at Auto China 2012 in Beijing. In combined mode, which uses the internal combustion engine and electric motor, customers experience sporty driving performance and better fuel economy. The A6 L e-tron PHEV concept. Click to enlarge. miles) on electric power.

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2017 Cadillac CT6 Plug-In Hybrid on sale in US in spring 2017; ~30-mile electric range

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In a detailed presentation at SAE 2016 Hybrid and Electric Vehicle Technologies earlier this year on the design of the RWD PHEV system for the CT6, Tim Grewe, GM’s General Director of Electrification, called it a “Volt on steroids.” ( Earlier post.) seconds, and is expected to deliver a fuel economy rating of 65 MPGe.

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