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Hyundai Motor Group unveils CVVD engine technology; +4% performance, +5% fuel economy, -12% emissions

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Hyundai Motor Group has developed the first Continuously Variable Valve Duration (CVVD) technology to feature in future Hyundai and Kia vehicles. T-GDi—the first engine to feature the technology. CVVD optimizes both engine performance and fuel efficiency while reducing emissions. T-GDi engine.

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Stellantis Hurricane twin-turbo I-6 cuts emissions, increases fuel economy and is more powerful

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liter, twin-turbo, inline, six-cylinder engine, named Hurricane, that delivers better fuel economy and fewer emissions than larger engines while at the same time generates more horsepower and torque than many competitors’ naturally aspirated V-8 and boosted six-cylinder power plants. Stellantis revealed its new, 3.0-liter,

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Mazda introduces series-hybrid plug-in version of MX-30 EV, with rotary engine genset

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The Mazda MX-30 e-Skyactiv R-EV, a plug-in series hybrid model that uses a rotary engine as a generator, made its world premiere at the Brussels Motor Show. Throughout, the entire driving range is electric motor-powered. Rotary engine. This has a negative effect on both fuel economy and engine output.

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Viable exhaust-driven on-board ethanol reforming for improvements in fuel economy and emissions

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A team at Monsanto and colleagues at AVL Powertrain have successfully designed and demonstrated an onboard low-temperature ethanol reformer that can be driven by exhaust heat. A paper on their work is published in the ACS journal Energy & Fuels. Click to enlarge. Unlike high-temperature reforming, supplementary water is not required.

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Toyota implements Atkinson cycle in non-hybrid ESTEC engine; up to 38% thermal efficiency and improved fuel economy

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Performance of the new ESTEC engine (1NR-FKE) compared to the current 1NR-FE engine applied in the Yaris. Engineers at Toyota have developed an approach to applying the Atkinson cycle—used in the engines in Toyota hybrids since 1997—for engines in conventional, non-hybrid vehicles. Yamada et al.

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DOE awards $17M to FY 2014 SBIR Phase II projects; includes Si/graphene anodes, motor windings, exhaust treatments

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Vehicle technologies span a range from new Si/graphene Li-ion anode materials and composites for motor windings to diesel aftertreatment and advanced lubricants. Mainstream Engineering Corp. Hybrid Electric Turbocharger for Exhaust Energy Recovery and Transient Lag Reduction. Mainstream Engineering Corp. Description.

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New 2019 Toyota Avalon hybrid boosts fuel economy 10% to 44 mpg combined

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liter Dynamic Force ( earlier post ) four-cylinder Toyota Hybrid System II (THS II) with 650V electric motor (A25A-FXS) and Continuously-Variable Transmission (CVT). Toyota estimates that the 2019 Avalon Hybrid will boost fuel economy by up to 10% over its MY 2018 predecessor, from 40 mpg (5.88 l/100 km) combined.