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Simulation study suggests ORC waste heat recovery system could deliver potential 7% improvement in fuel consumption in a PHEV on highway

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Internal combustion engines have been significantly improving in the past decade, after the adoption of technologies such as Gasoline Direct Injection, mild electrification, downsizing and turbocharging. The OSU EcoCAR prototype vehicle features an extended-range electric architecture with a downsized 1.8L Power from ORC.

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CPT/AVL Study: New Generation of Micro-Hybrid Technologies Can Enable More than 25% Reduction in Fuel Consumption at Lower Cost Than Full Hybrid Drive Systems

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liter ELC-Hybrid to downsized 1.4L VTES + SpeedStart. CPT and AVL have been working for the past 18 months to develop a value-driven micro/mild HEV solution, utilizing CPT’s production-ready VTES electric supercharger ( earlier post ). Reductions in fuel consumption and CO 2 from base 2.0-liter Click to enlarge.

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Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

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The technical and macro-economic study, commissioned by the European Climate Foundation, focuses on light-duty vehicles. The Phase I study assesses two scenarios against a reference case in which vehicle efficiency is frozen at the current level. The project is taking a phased approach.

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Mazdas new SKYACTIV gasoline and diesel engines are steps on the road to its Ideal Engine; focus on compression ratio

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the step-by-step introduction of electrification to SKYACTIV internal combustion engines: stop-start, followed by regenerative braking, followed by electric motor drive technologies. A Study on Improvement of Indicated Thermal Efficiency of ICE Using High Compression Ratio and Reduction of Cooling Loss, JSAE Paper#20119149.

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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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Researchers propose evaluating alt fuel efficiency based on energy rather than volume; impact of ethanol on vehicle efficiency and GHGs

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Relative changes in vehicle energy efficiency (VEE) (km/MJ) on ethanol/gasoline blends over those on gasoline for different blending levels. Several recent highly cited LCAs that have incorporated vehicle efficiency differences between gasoline and ethanol/gasoline blends could potentially be misleading. Click to enlarge.

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BCG study finds conventional automotive technologies have high CO2 reduction potential at lower cost; stiff competition for electric cars

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As a result, BCG concludes, the electric car faces stiff competition from ICEs (internal combustion engines) and, based solely on total cost of ownership (TCO) economics, will not be the preferred option for most consumers. BCG expects pack costs for OEMs will fall to ~$360-440 per kWh by 2020. Source: BCG. Click to enlarge. Source: BCG.

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