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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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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. liter ESTEC (Economy with Superior Thermal Efficient Combustion) in-line 4-cylinder Gasoline Engine (1NR-FKE). Yamada et al. Yamada et al.

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

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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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Toyota introducing new powertrain units based on TNGA; transmissions, engine, hybrid system, 4WD

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Toyota Motor Corporation has developed a new continuously variable transmission (CVT) featuring a launch gear; a new 6-speed manual transmission; a new 2.0-liter liter hybrid system; and new 4WD systems—one for gasoline-engined cars, one for hybrids—based on the Toyota New Global Architecture (TNGA).

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New 2014 Toyota Corolla brings Valvematic, new CVT to North America; up to >40 mpg highway

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2014 Toyota Corolla LE Eco. Toyota unveiled the 2014 Toyota Corolla—the 11 th generation of the car. With nearly 40 million units sold, the Toyota Corolla is the world’s best-selling car nameplate; this year marks its 47 th year on the market. Click to enlarge. The 2014 Corolla offers two 1.8-liter,

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2017 Chrysler Pacifica wins Altair Enlighten Award for weight reduction in full vehicle category; Toyota, Faurecia and AP&T module, technology winners

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Toyota’s carbon fiber closure panels for the 2017 Prius Prime and Lexus LC500 ( earlier post ), and Faurecia’s Adaptive Valve for exhaust systems employed on the 2017 Chevrolet Silverado took the top honors for the module category. Weight reduction is a key contributor to improved fuel economy. 2017 Chrysler Pacifica.

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New TNGA Dynamic Force 2.0L engine for 2019 Corolla Hatchback smaller, more powerful than 1.8L

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At the New York International Auto Show this week, Toyota will stage the premiere of the new 2019 Corolla Hatchback. liter Dynamic-Force direct-injection inline four-cylinder engine (M20A-FKS) ( earlier post ) with gains in power, fuel efficiency, and cleaner emissions. Toyota also reduced friction between piston skirt and cylinder.

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Audi banking on Gen 2 3.0L TDI diesel for US sales; calls for a “fair shot” for diesel

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Do they receive HOV access for their improved fuel economy and ultra low emissions? In fact in 6 of the states, diesel fuel is penalized with additional state taxes. So diesel fuel gets taxed twice or penalized twice at the federal and state level. Changes in the exhaust manifolds and turbo from Gen 1 to Gen 2.

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