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Toyota unveils two new small displacement engines

Toyota introduced a pair of brand-new engines in Japan today, that it says will eventually spawn 14 different variants by 2015. Where these two engines stand out in today's world, is that neither mill boasts direct injection, and both are naturally aspirated.
The larger of the two is a 1.3-liter, while the smaller engine, a 1.0-liter, was developed in collaboration with Daihatsu. What makes these two unique is that they both use the Atkinson cycle. Now, we aren't going to bore you by explaining just what this is - there's Google for that. Suffice it to say, Atkinson engines are highly efficient, but that efficiency comes by sacrificing power. That's why they're so popular in hybrids, which can offset the power losses.
This focus on fuel efficiency extends throughout the new engines, which also benefit from tweaks like a cooled exhaust gas recirculation system and a trick intake port, while the 1.3 employs Toyota's iE variant of variable valve timing. Both engines can be fitted with stop-start tech. According to Toyota, when fitted with stop-start the 1.3 should provide around a 15-percent bump while the 1.0-liter will increase economy around 30 percent, when they arrive on the road.

Toyota R&D shows off free piston engine linear generator for future EVs

We often hear how an electric vehicle powertrain architecture allows vehicle designers much more freedom than a traditional ICE powertrain does. With differently shaped battery modules and small electric motors, there are lots of way to put the pieces together. With today's plug-in hybrid technology, engineers still need to put a decent-sized ICE somewhere, but new technology from Toyota could free up the gas-electric vehicle designers of the future. Presented at the recent SAE World Congress in Detroit, the idea from Toyota Central R&D Labs Inc. and involves what is called a Free Piston Engine Linear Generator (FPEG). Think of it as a sort of one-cylinder, two-stroke mini-engine that can work either as a generator (thank to magnets and a linear coil) or to directly drive a vehicle. The current prototype is a 10-kW unit that Toyota say would provide enough power to get a B- or C-segment electric vehicle up to highway speeds (75 miles per hour) when paired up to offer 20 kW. Pairing the FPEGs is also important to minimize vibrations. One system tested by Toyota had a 42 percent thermal efficiency, but the engineers are working to improve the overall efficiency even further. You can watch an animated video of the piston in action here (click on "Outline") and see the SAE papers here and here. More technical details are available at Green Car Congress. News Source: Toyota Labs via Green Car CongressTip: Thanks, Joe V. Green Misc. Auto Shows Toyota Technology Emerging Technologies Electric generator

Toyota rolls out new turbo engine on updated JDM Auris

Toyota may be among the leaders in hybrid powertains, but the Japanese auto giant knows there's more than one way to skin a proverbial cat – especially when it comes to green propulsion. To that end, it has announced a new series of downsized turbocharged engines. Leading the charge is 8NR-FTS, a new 1.2-liter turbocharged and direct-injected engine that uses a single-scroll turbocharger and a water-cooled exhaust manifold integrated into the cylinder head. The engine promises to deliver "responsive acceleration and maximum torque across a wide rpm range" combined with "drastically improved thermal and fuel efficiency." It features what Toyota calls D-4T technology – combining direct-injection with a turbocharger in a four-stroke engine – as well as continuously variable intake valve timing. The result is an engine that produces 114 horsepower and 136 pound-feet of torque from just 1,196 cubic centimeters of displacement. The engine is being rolled out initially on a redesigned version of the Auris hatchback (similar to the Scion iM we'll be getting Stateside) that's being introduced in Japan. In addition to the 1.2-liter turbo, the JDM Auris will also be available with a 1.5- and 1.8-liter engines. Buyers will also be able to choose between CVT and six-speed manual transmissions (the latter only available with the 1.8), in front- or all-wheel drive and in six trim levels – of which the 120T with the new 1.2 and CVT is the top. The refreshed Auris also benefits from revised sheetmetal, interior equipment and safety features. We're awaiting word back from Toyota on whether this new engine (or some derivative thereof) will be made available in North America, but in the meantime you can scope out all the details on both the engine and the new Auris in the press releases below and in the pair of high-resolution image galleries. Turbocharged Toyota Auris Goes on Sale in Japan Toyota City, Japan, April 6, 2015-The partially redesigned Toyota Auris, offering a newly developed turbo engine and a brand new safety package, went on sale in Japan today. Featuring significant interior and exterior changes, this latest redesign advances the Auris brand by building on the individuality and performance that has defined the model since its first generation. In addition, Toyota has combined the best of the model's new features by creating the high-end 120T grade. Across all grades, Toyota aims to sell 1,000 units per month in Japan.