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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 has now sold over 7 million hybrids

You take your victories where you can. In Toyota's case, that means disclosing the cumulative total of hybrid sales since the first Prius was sold in Japan in 1997. And that number is impressive. During its monthly conference call discussing sales, Toyota representatives noted that the automaker has sold over 7 million hybrids during the past 17 years. The Japanese automaker started selling the Prius in the Japan in 1997 (and in US in 2000) and firmly established itself as the world's largest hybrid maker. Today, Toyota sells four Prius models as well as gas-electric versions of the Camry, Avalon and Highlander in the US. Of course, such big sales aren't always easy to match, and Toyota's been lagging behind 2013's numbers all year. Including its Lexus division, Toyota's green-car sales including the low-volume RAV4 electric vehicle fell 10 percent from a year earlier in September to just over 21,000 vehicles. Through the first three quarters of the year, Toyota's green-car sales were down 9.1 percent to almost 247,000 vehicles. That still dwarfs any other automakers' green-car numbers. Toyota crossed the 6 million hybrid threshold in January when it doubled the 3 million total from March 2011. Toyota will start selling its first mass-produced hydrogen fuel-cell electric vehicle in Europe next summer, and hopes that it will repeat the long-term success that the Prius has enjoyed, according to Automotive News Europe. For a transcript of the September sales call, click here.

Toyota fears supplier pressure in Australia with GM pull out

With Ford and General Motors both announcing an end to production in Australia, the country's auto industry is in a bad way. With the exit of two big players, there's increased concern that a third Australian manufacturer, Toyota, will be forced out, as well.
"We are saddened to learn of GM Holden's decision. This will place unprecedented pressure on the local supplier network and our ability to build cars in Australia," Toyota Australia said in a statement. The GM closure of Holden production will be the direct end to 2,900 jobs, but will also force a dramatic reduction in the size of the country's supplier network, as there will simply be fewer cars to build.
In the same statement, Toyota Australia said it would work with suppliers and local government to figure out whether continuing production Down Under was even feasible. According to Automotive News, a representative for the Australian Manufacturing Workers' Union told reporters it was "highly likely" that Toyota would also close up shop within the next few years.