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2011 edition of EPA Fuel Economy Trends report shows several advanced powertrain technologies making significant gains

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to 8.3%) and is projected to triple from MY 2009-2011 (to 13.7%); turbocharging is projected to double in MY 2011 (from 3.5% to 7.4%); cylinder deactivation is projected to nearly double in MY 2011 (from 6.4% to 11.1%); and both 6-speed and 7-speed transmissions approximately doubled from MY 2009-2011 (from 24.7%

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EPA annual report on CO2, fuel economy and technology trends finds 2012 heading for all-time best; rapid adoption of new technologies

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Adjusted CO 2 emissions and adjusted fuel economy, MY 1975-2011. Data for MY 2011 are final; data for MY 2012 are preliminary and based on projected vehicle production values provided to EPA by manufacturers. Source: EPA. Click to enlarge. l/100 km), both slightly worse relative to MY 2010.

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EPA trends report sees record levels of average new vehicle fuel economy and CO2 emissions for MY 2012; role of new gasoline vehicle technologies

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The final model year (MY) 2012 adjusted, real world CO 2 emissions rate is 376 g/mi—a 22 g/mi decrease (-5.5%) relative to MY 2011. MY 2012 adjusted fuel economy is 23.6 mpg higher (+5.4%) than MY 2011. l/100 km) fuel economy, which, if achieved, will again represent all-time records. Click to enlarge.

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ADEPT project to apply gasoline engine HyBoost system to diesel; 48V architecture; full hybrid fuel economy at much lower cost

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The Ricardo-led Advanced Diesel Electric Powertrain (ADEPT) project will apply 48V “intelligent electrification” concepts, mild hybridization and waste heat recovery in a Ford Focus diesel demonstrator. In 2011, the HyBoost team reported that the HyBoost demonstrator was achieving comparable performance to the conventional 2.0L

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Consumer Reports testing finds many small turbo engines underperforming; fuel economy, acceleration no better than in larger conventional powertrains

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Consumer Reports’ own fuel economy tests of vehicles equipped with small turbocharged engines has found in many cases that the turbocharged cars tested by CR have slower acceleration and no better fuel economy than the models with larger conventional engines, the organization said. l/100 km) figures—i.e.,

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GM Korea introduces Alpheon eAssist; 25% improvement in fuel economy

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GM Korea introduced the Alpheon eAssist, the first hybrid vehicle from the company and the first hybrid vehicle in its segment in Korea. The new Alpheon eAssist, which will go on sale in November, offers improved fuel economy of 25% and reduced CO 2 emissions of 22% compared with the standard Alpheon model. mpg US, 7.1

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Toyota launches all-new Aqua (Prius C) hybrid in Japan; bipolar nickel-hydrogen battery

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The all-new Aqua is approximately 20% more fuel efficient (WLTC) than the previous generation; it combines outstanding fuel efficiency of 35.8 liter Dynamic Force Engine and an optimized HEV system, the all-new Aqua not only achieves compact class-leading fuel economy of 35.8 then, Kanto Auto Works, Ltd.) million tons.

Prius 418