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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.

What's in a trademark? Sometimes, the next iconic car name

The United States Patent and Trademark Office is a treasure trove for auto enthusiasts, especially those who double as conspiracy theorists.
Why has Toyota applied to trademark "Supra," the name of one of its legendary sports cars, even though it hasn't sold one in the United States in 16 years? Why would General Motors continue to register "Chevelle" long after one of the most famous American muscle cars hit the end of the road? And what could Chrysler possibly do with the rights to "313," the area code for Detroit?

China fines Toyota $12.5 million over Lexus price-fixing

BEIJING — China's market regulator on Friday has fined Japanese carmaker Toyota Motor 87.6 million yuan ($12.5 million) for price-fixing on its premium Lexus cars in eastern Jiangsu province, according to a document on its website. The decision comes as China steps up regulation over auto sales in the world's biggest vehicle market, where more than 28 million cars were sold last year. The anti-monopoly bureau of State Administration for Market Regulation said that between 2015 and 2018, the Japanese carmaker set a minimum sales and resale price for its cars in coastal Jiangsu province, which deprived dealers of pricing autonomy and harmed customers' rights. Lexus also fixed sales strategies in the region over the period, including offering customers discounts while asking them to purchase accessories at fixed prices, a sales tactic usual among individual auto dealers in China but frowned upon for carmakers. A spokesman at Toyota, Lexus' parent firm, told Reuters the firm acknowledged the penalty and respects the decision. He did not comment further. China's auto sales are declining, but Lexus' sales keep growing. It sold 180,200 vehicles in the first 11 months this year, a 21% jump from a year earlier. In June, China's market regulator imposed an 162.8 million yuan fine on Ford Motor Co's joint venture with Changan Automobile Group for violating anti-monopoly law. ($1 = 6.9927 Chinese yuan renminbi) Reporting by Yilei Sun and Norihiko Shirouzu. Related Video: