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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 prices TRD Pro Tacoma, 4Runner

Toyota is finally all set to drop more details about the upcoming off-road ready TRD Pro Series models of the 4Runner, Tacoma and Tundra after first revealing them in February. These trucks and SUV might not get the big engine and other mods that desert-stormers like the Ford F-150 Raptor have, but they are still a nice step up over the stock versions. All of the TRD Pro vehicles come as 4x4 models with Bilstein shocks with remote reservoirs in the rear, TRD front springs, skid plates, black wheels, retro-inspired "TOYOTA" badging and TRD-branded floor mats and shift knobs on the inside. They're available in three colors: Inferno, Attitude Black Metallic and Super White.
The Tacoma hits the market first in early August with prices starting at $35,525, plus $885 for delivery, processing, and handling, for an Access Cab V6 with a six-speed manual. Opting for a five-speed automatic brings things up to $37,390 after the destination fee. A Double Cab with a manual goes for $37,320, or $38,300 for the automatic, after the delivery charges. The 4Runner follows in September with just a single trim priced at $41,110 - $41,995 after the charge - for the V6 and five-speed auto.
Toyota is holding off on revealing more about the Tundra for now. It's coming in the fall, but the company isn't announcing prices yet. We don't have to wait long, though. "Within the next month we'll reveal that," said Toyota spokesperson Sam Butto to Autoblog about the TRD Pro Tundra's price.

Submit your questions for Autoblog Podcast #317 LIVE!

We record Autoblog Podcast #317 tonight, and you can drop us your questions and comments regarding the rest of the week's news via our Q&A module below. Subscribe to the Autoblog Podcast in iTunes if you haven't already done so, and if you want to take it all in live, tune in to our UStream (audio only) channel at 10:00 PM Eastern tonight.
Discussion Topics for Autoblog Podcast Episode #317
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