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

Green Car Congress

They presented their results in a paper at SAE 2014 World Congress in Detroit. l/100 km) at 60 mph (97 km/h) to 33 mpg (7.1 l/100 km) at 60 mph to 22.9 for the Corolla and 1-4% for the Explorer; The best fuel economies were achieved at a constant speed of 40 mph (64.4 l/100 km) and 50 mph (80.5

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

Green Car Congress

One tip is that drivers should obey the speed limit since the fuel economy of most vehicles decreases above 50 mph [80 km/h]. ORNL staff members John Thomas, Shean Huff and Brian West have worked to quantify this trend through analysis of dynamometer testing results for 74 vehicles at steady-state speeds from 50 to 80 mph [80 to 129 km/h].

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Toyota Central R&D developing free-piston engine linear generator; envisioning multi-FPEG units for electric drive vehicles

Green Car Congress

Toyota envisions that a pair of such units (20 kW) would enable B/C-segment electric drive vehicles to cruise at 120 km/h (75 mph). The team presented two papers on the state of their work at the recent SAE 2014 World Congress in Detroit.

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Ford adds 3-cylinder, 1.0L EcoBoost engine and 8-speed transmission to lineup; new hybrid transmission in 2012

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An exhaust manifold cast into the cylinder head. The one-piece assembly lowers the temperature of the exhaust gases. A study by Delphi Powertrain presented at the SAE 2010 World Congress in Detroit concluded that a 3-cylinder turbocharged gasoline direct injection (GDI) engine—such as the 1.0L Earlier post.).

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Daimler Trucks NA SuperTruck achieves 115% freight efficiency improvement over 2009 baseline; 50.2% engine BTE

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Testing was also conducted at the DTNA Detroit engineering facility to demonstrate engine efficiency by achieving 50.2% The Freightliner SuperTruck features a low-back-pressure, next-generation aftertreatment system that efficiently removes NO x from the exhaust stream. Detroit rear axles were upgraded for the Freightliner SuperTruck.

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Audi unveils Q8 sport concept with 48V mild hybrid system (mHEV); drive system coming to “many” Audi models

Green Car Congress

At the 2017 Geneva International Motor Show, Audi is presenting the Audi Q8 sport concept, a new performance-oriented take on the Q8 concept study introduced at the 2017 Detroit Motor Show. The electric powered compressor supports the turbochargers at times when the exhaust gas is insufficient for rapid development of power.

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Land Rover bringing two diesel SUVs to N. America; 32% better combined fuel economy, up to 28 mpg on highway; LEV 3

Green Car Congress

The two new luxury diesel SUVs are making their debut at the 2015 North American International Auto Show in Detroit and go on sale Fall 2015. The Range Rover Sport Td6 and Range Rover Td6 accelerate from 0-60 mph in 7.1 The Range Rover Td6 and Range Rover Sport Td6 SUVs will deliver 25 mpg (9.4 l/100 km) on the highway.