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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.

The 11 best scenes from the 2015 Goodwood Festival of Speed

Over the last three days, the Goodwood Estate has played home to the eponymous Festival of Speed. Thrown by the biggest gearhead in the British aristocracy – Charles Gordon-Lennox, the Earl of March and Kinrara – the Festival of Speed is essentially a tremendous, gasoline-fuelled party, complete with a very large lawn sculpture, that features the world's hottest, weirdest, fastest, and loudest race, production, and historic models. While there are quite literally dozens and dozens of videos from the event – not to mention the full-day replays (of which only day one is available, at present) – we've sifted through them to pluck away the very best. There's stuff from the official Goodwood YouTube channel, as well as several videos from automakers and other third-party channels, and it's all available below. 2015 Ford Mustang GT350R Looks Barely Controllable If you thought the highest-performance Ford Mustang would somehow get more tractable or civilized once it moved to an independent rear suspension, this video shows you have nothing to worry about. Watch as an unnamed driver wrestles the new Shelby GT350R and its flat-plane, 5.2-liter V8 up the hillclimb circuit. Even with the new suspension and sticky tires, this Mustang wants to go any direction but straight, especially following its launch. 2016 Ford Focus RS, Is Very Loud, Blue Ken Block makes his first appearance on our list. Before he steps into his Hoonicorn Mustang, though, the Gymkhana expert tackled the hill in the all-new Focus RS. The vicious bellow of the 2.3-liter, turbocharged four-cylinder is the star of this commentary-free video, although the gorgeous Nitrous Blue paint job is a nice accompaniment, as well. 1965 Ford Mustang Hoonicorn Runs Hill, Nearly Kills Lord March Mr. Block's two runs behind the wheel of the Hoonicorn were, unsurprisingly, very eventful. While one attempt goes off without a hitch, seeing the American rally driver slip and slide his way to the top of the hill while taking a short break for a donut, the other is slightly more dramatic. Block, along with Lord March in the passenger seat, carries a bit too aggressive an angle into a turn and nearly puts the NASCAR-powered Mustang into the hay bales. Check out the first video above, and the second one below. Kimi Raikkonen Makes Us Miss F1's V8 Era The latest Formula One cars have been maligned for the lackluster noise produced by the new 1.6-liter, turbocharged V6.

Evo pits Toyota GT86 vs. Mazda MX-5 Miata

The latest Deadly Rivals episode from Evo gets the Mazda MX-5 Miata and Toyota GT86 (our Scion FR-S) on track for a shakedown and a whole lot of drifting with Dan Prosser behind the wheel. The UK-spec coupes have slightly different power ratings than ours, but it's all close enough to be comparable. Their Miata has 158 horsepower (ours has 155), 148 pound-feet of torque, takes 7.3 seconds to run from naught to 60 62, and costs 22,695 pounds. The GT86, on the other hand, lists a 7.6-second dash to 60 62, and a base price of 25,000 pounds. The GT86 also weighs 400 pounds more than the Mazda. That's true in the States, too – curb weight for our MX-5 is 2,332 pounds, whereas the Scion FR-S comes in at 2,758 pounds. Both cars lauded for excellent shifting, but one of them has a better front end, a sweeter engine note, more controllable cornering behavior, and is faster by a tenth of a second around the test track. And Prosser doesn't mention it, but one has a lot more body roll. But it takes more than all that to make a winner, so check out the video above to see which is which. News Source: Evo via YouTube Mazda Scion Toyota Convertible Coupe Performance Videos toyota gt86 evo