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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.

Toyota GT86 convertible on 'indefinite hold'

Bad news, sportscar fans. According to a new report from What Car?, Toyota has cancelled plans to produce a GT86 convertible, a model based on the FT-86 Open Concept that debuted at the 2013 Geneva Motor Show. In truth, Toyota never actually confirmed it would produce the budget-friendly droptop in the first place, but rumors have been flying since last year and Toyota reportedly showed its embattled Scion dealers a FR-S version of the convertible in August. Presumably, this means that a lidless variant of the Subaru BRZ is not in the cards, either.
The reason for the move is unknown, though What Car? reports "one possible cause is weight; Toyota did say that further work would be required on rigidity before the convertible could be launched, and that could have added extra bulk that conflict with the regular GT86's ethos of light weight and agile handling." It doesn't look like that work will happen anytime soon, as "sources now say that the car has now been delayed indefinitely, with no place in Toyota's product plan in either 2014 or 2015." Still holding out hope? What Car? says the project could be "fast-tracked" if management decides it wants to reboot the program down the road.
one possible cause is weight; Toyota did say that further work would be required on rigidity before the convertible could be launched, and that could have added extra bulk that conflict with the regular GT86's ethos of light weight and agile handling. - See more at: http://www.whatcar.com/car-news/toyota-gt86-cabriolet-cancelled/1214782#sthash.iStIkWnz.dpuf

2022 Lexus IS 500 F Sport Performance brings back the V8

The 2022 Lexus IS 500 F Sport Performance revives the dormant IS F formula, bringing V8 power back to the compact luxury Japanese sport sedan for the first time since 2014 and confirming rumors of a new series of V8-powered performance (small p) cars from Lexus. Very little surprises us these days, especially in the luxury segment, but if you'd told us a month ago that we'd be confirming a V8-powered Lexus IS and a new, all-four-cylinder lineup for the Mercedes-Benz C-Class in the same week, we'd have called you crazy. Parent company Toyota's presence in Texas may have rubbed off on Lexus, though, because after a years-long hiatus, the V8-powered IS sedan returns. That's right. A V8. In a brand-new compact sport sedan. In 2021.  The new sport sedan will pack a 472-horsepower, 5.0-liter V8 with 395 pound-feet of torque, making it the spiritual successor to the discontinued Lexus IS F. For those keeping track at home, yes, that's the same V8 Lexus has utilized elsewhere in recent years. It currently powers the RC F coupe and, until last year, was also found under the hood of the larger GS F sedan. Like the BMW M3 it matches for power, the Lexus will come standard with rear-wheel drive and a limited-slip differential, making it a true performance machine. Power will go to the rear end by way of the same eight-speed automatic Lexus uses elsewhere as well. Sorry, folks, there's no stick, but hey, the IS F didn't have one either, so let's not get too picky. The original IS F also offered just 416 horsepower and 371 lb.-ft. of torque, so remember, this is all upside here. The original also launched without the LSD, if you'll remember; that came later.  2022 Lexus IS 500 F Sport Performance View 26 Photos The other significant edge the IS 500 F Sport Performance will have over its two-generations-removed predecessor will be the benefit of almost a decade's worth of interior development. While the IS platform was not significantly overhauled for the 2021 "re-imagining" (as Lexus puts it; we prefer the term "remodel"), the interior was, and the IS 500 F Sport Performance will benefit from all of the base sedan's upgrades, including a thoroughly overhauled infotainment system, which is night-and-day better than what was offered previously.