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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.

Gazoo heads to the N"urburgring with Lexus LFA Code X

You'd be forgiven for thinking just because the Lexus LFA has ended its production run (it's been over a year now) that Toyota would have ceased its development. You'd be forgiven, but Gazoo Racing is here to tell you you'd still be wrong.
One of Toyota's many works racing teams, Gazoo is returning to the 24-hour endurance race at the Nürburgring this year with a trio of entries. One is based on the Toyota GT86 (which we know as the Scion FR-S), and one is essentially the same LFA that it's entered in years past. But the third vehicle is dubbed Code X.
It's also based on the LFA, but its 4.8-liter V10 engine has been bored out to 5.3 liters, raising its output to untold levels. It's got a full carbon-fiber chassis and a range of other enhancements that Gazoo isn't telling us about just yet, but they should turn the LFA Code X from a road-going supercar beyond a racecar and into a rolling research lab. Considering that Gazoo has been racing at the 'Ring since 2007 and fielding versions of the LFA there since 2008, it'll be interesting to see how the Code X version fares.

Toyota GT86 turbo, convertible, sedan variants back on the table

Okay Toyota, make up your mind. Figure it out. Quit playing games with our heart. Either build a bunch of variations of the excellent GT86 (also known as the Scion FR-S and Subaru BRZ) or don't. At this point, we're just tired of the back and forth. After no shortage of denials, an Australian website is claiming that Toyota is reconsidering convertible, four-door, turbocharged and all-wheel-drive hybrid variants of the GT86. Kindly pass all the salt.
It's not that we don't want to believe the Aussies; we do. But when the story lists the same "sources in Japan" as a lot of the other denials and confirmations about GT86/BRZ/FR-S variants, well, there's a certain sense of the "Boy That Cried Wolf," here. Ignoring all that, then, what does Motoring.com.au claim to know?
Sources claim the GT86 Convertible will arrive in October 2014, while the turbocharged and hybrid sedans are slated for 2016.