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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 Harrier gets a whale of a facelift [w/video]

Historically, the Toyota Harrier has been a doppelgänger for North America's Lexus RX - at some points, it was little more than a badge-swap and a few options away, at least aesthetically. That appears to be changing with this just-revealed new generation at the Tokyo Motor Show.
That's because this two-row, five-seat Toyota is in possession of a bold new look, dominated by a jutting, baleen-like grille edged in chrome, along with new headlamps and fascia. The greenhouse has likewise been revamped and gotten more pointed at the rump, which has new taillights, a resurfaced tailgate and a faux rear diffuser. Were it to be ported over to North American Lexus dealers intact, the Harrier's look would be jarring in light of the brand's spindle-grille-based design language, so we suspect that if the RX gets any of these updates (it was just refreshed for 2013), it will strike out on a different path visually.
Unlike the US RX, the new Harrier will rely on smaller-displacement four-cylinder engines, namely a 2.0-liter paired with a continuously variable transmission or a 2.5-liter four backed up by an electric motor. We'd like to see a smaller-displacement option for the US RX (it presently runs with 3.5-liter V6 engines in both gas-only and hybrid guise), but suspect it won't arrive until the next all-new model.

Toyota World's Top-Selling Carmaker For Second Year

Toyota remained the top-selling automaker for a second year in a row, beating U.S. rival General Motors by some 270,000 vehicles in 2013, and set an ambitious target to sell more than 10 million vehicles this year. That would mark a milestone as no automaker has ever topped annual worldwide sales of 10 million. Toyota Motor Corp. said Thursday it sold a record 9.98 million vehicles worldwide last year, up 2 percent from the previous year. The Japanese automaker has made an impressive comeback from an earthquake and tsunami that devastated northeastern Japan in 2011, damaging auto suppliers and hobbling production. Toyota also outlined plans to sell 10.32 million vehicles and produce 10.43 million vehicles in 2014. General Motors Co. sold 9.71 million cars and trucks worldwide last year, outselling Volkswagen AG of Germany at 9.5 million. Toyota recaptured the global sales crown in 2012 from GM, which had been the top-selling carmaker for more than seven decades until being surpassed by Toyota in 2008. Toyota, which makes the Camry sedan, Prius hybrid and Lexus luxury models, had strong sales growth last year in overseas markets, although sales fell in long stagnant Japan. Toyota's U.S. sales totaled nearly 2.24 million vehicles, up 7 percent from the previous year. Its China sales were also strong, surging 9 percent to 917,000. Toyota remained optimistic about prospects this year for both regions, expecting sales to grow 3 percent in the U.S. to 2.3 million vehicles, while adding 20 percent in China sales to 1.1 million. The company was typically low-key about the bragging rights for being No. 1, reiterating its comments from previous years that it was merely making one car at a time to appeal to global consumers. GM has also expressed similar sentiments, but being the top seller is a key morale booster for the employees and related companies. The healthy results at the three rivals reflect the momentum of growth in the auto industry. Toyota has undergone tough times in recent years, such as a massive recall fiasco in the U.S. involving more than 14 million vehicles for sticky gas pedals, faulty floor mats, problematic brakes and many other defects, spanning several years from 2009. Related Gallery AOL Autos Test Drive: 2014 Toyota Highlander Toyota Ownership sales selling