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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 Prius sets a different kind of Nurburgring lap record [w/video]

Scroll down the leaderboards of Nürburgring lap times and you'll see mostly racing cars, supercars and sports cars. Delve deep enough and you'll eventually get to hatchbacks and sedans, albeit the most performance-focused of their kind. But a hybrid? Sure, the Porsche 918 Spyder posted the top time for a street-legal series production car, and it's technically a hybrid, but we're talking about another kind of hybrid here. We're talking about a Toyota Prius.
That's right: the Prius just set a lap record around the Nordschleife. But it wasn't for the lap time. In fact, miles per hour barely factored in (except for staying above the minimum 37-mph average speed mandated on the vaunted racing circuit). No, this was about miles per gallon.
Toyota took one of its Prius Plug-In hybrids to the Nürburgring, topped up the battery, put on a set of low-rolling-resistance tires and put automotive journalist Joe Clifford behind the wheel with a mandate to use as little fuel as possible. After one second shy of 21 minutes, the Prius completed its lap having used just five tablespoons of fuel.

In Jamaica, it's not easy to sell or buy hybrid cars

Jamaica's mellow reputation and Rasta vibe contributes to an international reputation of an island nation that moves at a leisurely pace. And the term "leisurely" certainly applies to the rate of sales of hybrids there. And we thought Mitsubishi i sales in the US have been slow. The country's Toyota dealership is still in the process of explaining hybrid technology to many of its prospective customers, with the widespread perception remains that a standard Toyota Prius needs to be plugged in for electrical charging, the Jamaica Gleaner reports. Because of such slow exposure, Toyota has only sold about 10 hybrids in Jamaica since the Japanese automaker started selling them there in 2010. And we thought Mitsubishi i sales in the US have been slow. Toyota dealers in Jamaica continue to tout hybrid technology that can boost fuel economy by about 30 percent but are going up against the fact that Toyota's hybrids now need to be pre-ordered and aren't kept in stock because of sluggish demand. There's also the fact that Toyota's Japanese operations insist on an approval process that ensures the hybrids sent there can handle Jamaica's road conditions, and it typically takes three to four months for a Prius to get to Jamaica once ordered. Island locales provide a curious dichotomy for advanced-powertrain vehicles. On one hand, the driving distances tend to be relatively small, lengthening the amount of time it takes to pay back the original cost premium. On the flip side, importing fuel to islands makes gas prices skyrocket and can prove costly for the economy in island nations. Late last year, for instance, the government of another Caribbean nation, Barbados, estimated it spends about $250 million a year on gas used for personal vehicles. That's why the government there is pushing for more electric-vehicle adoption, though the number of EVs on the island was in the low double-digits as of mid-2013.