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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.

2015 Toyota Auris freshens up in Geneva, prepares for New York debut

Toyota is preparing to bring its Auris hatchback to the US market as a Scion. That makes news of this refreshed Auris, debuting at the 2015 Geneva Motor Show, a fairly noteworthy piece of news. Changes are decidedly light, befitting of a refresh. Toyota has tweaked the headlights, taillights and both bumpers for 2015, featuring a wider grille up front. In the cabin, changes are similarly limited, with updated connectivity equipment, particularly the area around the infotainment system, being the biggest change. A new instrument cluster looks to have been installed, as well. Aside from those changes, though, Toyota didn't do too much to the Auris. You can check out our full gallery of live images for Geneva, and you'll want to be sure to check back here next month, for the official coverage of the Auris-based Scion iM when it debuts at the 2015 New York Auto Show. NEW TOYOTA AURIS TO JOIN NEW AVENSIS ON STAGE AT GENEVA Motor show debut for British-built Auris hatchback and wagon Toyota will reveal its new Auris at the Geneva motor show (3 – 15 March), the British-built hatchback and Touring Sports wagon versions making their debut alongside new Avensis. New Auris enjoys a refreshed design that adds presence and prestige, together with an upgraded cabin and new comfort and safety equipment features. The hybrid remains at the heart of the range, having established itself as the leading powertrain in the line-up, accounting for around half of all Auris sales in Europe in 2014. Nonetheless, the new model heralds the arrival of new and improved petrol and diesel engines, developed with a focus on efficiency and performance. The simultaneous reveal of new Auris and Avensis follows on from last year's introduction of Aygo and Yaris to complete a full rejuvenation of Toyota's core European model range. Both Auris and Avensis will continue to be built side by side at Toyota Manufacturing UK's car plant at Burnaston, near Derby. Toyota will host its Geneva motor show press conference on its stand in Hall 4 at Palexpo, at 12.15pm on 3 March. Related Video:

Toyota wants improved crash scores with midcycle facelifts

The performances of some Toyotas in the Insurance Institute for Highway Safety's (IIHS) regimen of crash tests leave something to be desired. Consider the small overlap frontal crash test: only six Toyota, Lexus and Scion vehicles have undergone the new test, yet all but one of them received a poor rating. Osama Nagata, CEO of Toyota Motor Engineering & Manufacturing North America Inc., says midcycle vehicle updates are in the works to address the safety issues brought to light by the IIHS test, Automotive News reports. He confirmed that the RAV4 is getting safety updates following its crash test performance last month, but he didn't name any other models.
All three Toyotas that were tested - 2013 RAV4, 2012-2013 Prius V, 2012-2013 Camry - received poor ratings. The 2007-2012 Lexus ES 350 and 2006-2013 IS 250/350 also received poor ratings. The only other Toyota Motor Corp. vehicle to score better than poor is the 2014 Scion TC. It received an acceptable rating in the small overlap frontal crash test and is the only recent vehicle in Toyota's line-up to get the IIHS Top Safety Pick+ rating.
The small overlap front crash test measures the safety of a car when its front left corner is strikes an object during an accident, bypassing traditional crumple zones, which deform in a way to protect passengers. In 2009, automakers were alerted to the forthcoming addition of the test, which was first implemented last year, IIHS spokesman Russ Rader says. They responded with differing intensity, he says, pointing out that Subaru and Honda started incorporating design changes early on so their cars would perform well in the tests.