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Toyota finds 10% MPG improvement in hybrid PCU

Keeping up its from-all-angles approach to efficiency, Toyota has found yet another way to eke out up to ten percent more precious MPGs in its hybrid vehicles, this time electronically. The automaker has announced the development of new silicon carbide (SiC) power semiconductors for use in power control units, which it will begin testing on Japanese roads within the next year. The PCU using the silicon carbide compound offers less electrical resistance, which improves efficiency when passing current between the battery and electric motor. It also loses less power after shutting off, and can operate at a higher frequency. The net power loss of the new PCU is just one-tenth of the current silicone-only version (the latter accounting for 20 percent of total electrical power loss in today's hybrids). The result, so far, is a claimed five-percent improvement in fuel economy in test vehicles, with the potential of ten percent by the time the new SiC power semiconductor comes to market. Additionally, the carbide wafers allow for smaller a power module, coil and capacitor, thus allowing the entire PCU to be 80 percent smaller (see the side-by-side comparison in the accompanying photo, which you can click to enlarge). We've got a while to wait before we start to see the carbide technology to start making a real-world impact. Toyota aims to begin using the SiC units in 2020. By then, with improvements in the company's other key efficiency factors - engine technology and aerodynamics - cars like the Prius will likely see significant gains in fuel economy. Read more in the press release below. Toyota Develops 'Diamond-like' Computer Chips to Boost Hybrid Mileage May 20, 2014 Toyota City, Japan – Toyota is using one of the hardest materials in nature after diamonds to develop a semiconductor chip it hopes will improve the fuel efficiency of its hybrids, such as the Prius, by as much at 10 percent. The company and its partners announced today that they have developed a silicon carbide (SiC) power semiconductor for use in automotive power control units. Toyota plans to begin test-driving vehicles with the technology on public roads in Japan within a year. The chips, made from carbide - one of the hardest materials in nature, theoretically have superior characteristics such as one-tenth the electrical power loss and 10 times the drive frequency. Toyota said the chips would also allow it to reduce the size of current automotive power control units by 80 percent.

Lightweight Toyota GT86 spotted on Nordschleife with carbon panels, upgraded aero

We've seen (and frankly reported on) so many rumors of more powerful and performance-focused versions of the Subaru BRZ, Toyota GT86 and Scion FR-S at this point that haven't materialized that, at this point, we're almost tired of them. Almost. But what we have here was enough to pique our jaded interests as only a carbon-bodied sports car on the Nürburgring could do.
What we're looking at is, well, we don't quite know, to tell you the truth. What we can tell is that it's a Toyota GT86 (Scion FR-S for us) wearing new wheels and a carbon-fiber hood, roof, racing-spec rear wing and subtle lip spoiler. The vents in the hood indicate that the prototype in question could be packing an upgraded engine to go with the lighter body panels and upgraded aero, and the interior (at least as far as we can see) looks pretty well stripped out.
The right-hand drive configuration tells us this is either destined for former territories of the British Empire or for the racetrack. Considering the ride height, full glass and apparent lack of roll cage, our money's on this prototype is being developed for the Japanese Domestic Market, where Toyota badges the sports car simply as the 86. We can always hope, though, that some version makes it into Scion showrooms in North America... we just won't get our hopes up too high.

Toyota RAV4 EV lease gets cut in half to $299/month

If you're in the market for a new electric vehicle, now is definitely the time to buy or lease. Following price drops on just about every other EV on the market, Toyota is looking to push a few more all-electric RAV4 crossovers out the door over the Labor Day weekend. The Detroit News is reporting that, through September 3, anyone looking to get into a RAV4 EV in Los Angeles or San Francisco, can get a deal: a $299 a month lease (no word on down payment, though) or zero-percent financing for 60 months for buyers.
The $49,800 RAV4 EV normally leases for twice as much - $599 a month - so this move could be an attempt to sell more of the 2,600 units Toyota has planned to produce. Or maybe, if you thought $599 was a fair price, you can now get two RAV4 Evs. Although temporary, the price drop comes at a time when many other EVs on the market have had their prices reduced, including the Nissan Leaf, Chevy Volt, Smart Fortwo ED and Honda Fit EV, not to mention already low prices for the Fiat 500e and Chevy Spark EV.
*Note: 2012 RAV4 EV pictured here