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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 previews next Lexus RX with Tokyo-bound JDM Harrier

The Lexus RX shares much with the Toyota Highlander, but its more direct counterpart is the Toyota Harrrier. Never heard of it? That's because Toyota only sells it at home in Japan, and now it's revealed a new one. So if the Harrier is essentially a Toyota-badged version of the RX, then what's the big deal, you ask? The big deal is that the new Harrier which leaked in July, set to debut at the Tokyo Motor Show next week and which you see here isn't quite the same as the Lexus, and those differences could (and in most cases likely will) make their way over to the RX as well.
For starters, the styling is different. Granted that the Lexus version will almost certainly get a spindle-shaped grille, but even so, the Harrier's nose seems to protrude further than the RX's and the headlamps are a notably different shape. The greenhouse is also a different shape, coming to a sharper point at the back, and the mirrors are fixed to the A-pillar not to the door panel. The taillamps are revised, the tailgate has a new profile and there's a pseudo-diffuser at the bottom of the rear bumper. Subtle changes, to be sure, but then Toyota and Lexus are known for their evolutionary approach to styling. The interior has apparently undergone some updates as well, with a more dynamically styled dashboard, a more symmetrical center stack and different seats, steering wheel, door panels... the works. The infotainment display screen has also moved further down from its position in the current RX.
Toyota will offer the new Harrier with a 2.0-liter four mated to a CVT and driving either the front wheels or all four, and a hybrid setup with a 2.5-liter married to a 140-hp electric motor. The RX is offered here with a 3.5-liter V6 either on its own or with an electric assist. We wouldn't expect Lexus to go swapping the larger engines for the smaller ones, at least not for the US market. There's plenty more to the Harrier, of course, than the similarities and differences to the Lexus RX, and if you're buying a premium crossover in Japan, you can delve into the full details in the press release below, together with the images in the gallery above.

Toyota FV2 Concept is a single-seat mood ring for the road

Of all the vehicles Toyota brought to the Tokyo Motor Show, the FV2 might be the most creative. The minimalist single-seat concept is a glimpse at Toyota's idea of a "fun to drive" vehicle in the future.
The FV2 is essentially a pod with a diamond-shaped wheel array (what powers said wheels has not been disclosed), and Toyota says that the technology of the vehicle allows it to gauge the driver's mood and suggest possible destinations. The interaction between driver and vehicle is also displayed in an augmented reality screen on the windshield, and the car can also act as a mood ring of sorts with exterior colors and patterns that can change based on the driver's mood. We can just see it now: "Don't mess with Jim today, his car is red."
Scroll down for a brief press release on the FV2.