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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.

Supra successor may be all-electric sourced from Tesla; MR2 returning too?

Rumors of a revival of the Toyota Supra and MR2 have been swirling for years right up until just this week when high-level Toyota employees all but confirmed their return.
But now The Detroit Bureau has put together news from different sources suggesting that the next Supra might be all electric. The report cites recent comments from Toyota senior executives hinting at plans to work with Tesla on a new joint project. The FT-HS Concept (shown above) seems a logical inspiration for a new Supra.
And on the other side of the equation is Tesla's design chief Franz von Holzhausen who was quoted last year saying his company was looking at its next project, probably a sports car, that would follow next year's intro of the Model X. He went on to suggest the car would compete directly with BMW's 3 Series, which, in coupe form, could be a worthy competitor to a Supra as well.

Recharge Wrap-up: New and old Audis get greener, as does US electricity

Audi has made environmental improvements to the its TT while boosting performance. The new TT sees an 11-percent reduction in emissions, and up to 14 percent more power. Audi says that each TT will save around 5.5 metric tons of greenhouse gas emissions over its lifecycle. Additionally, the TT's manufacturing process has been cleaned up a bit, reducing emissions by about nine percent. Read more in the press release, below, or see Audi's lifecycle assessment here. Speaking of greening up Audis, Al Swackhammer of Washington converted his 1960 Audi DKW 1000S to run on electric power. Swackhammer first fell in love with the Audi Ur-Quattro, became an enthusiast of Audi and Volkswagen cars, and has owned nothing else ever since. With his DKW, he combined his passion for the classic car with his responsibility to the environment. "I am pleased that I did this project," says the happy owner, "and I enjoy driving it very dearly." Meet the man and his beloved electric Audi DKW in the video below. Toyota has chosen a sustainable design firm, Corgan, as the lead architect for its new North American headquarters. The new campus will be built in Plano, TX, and will be the workplace of about 4,000 Toyota employees. Corgan, who has already done 47 LEED certified projects, is already designing a temporary office for the site while it finishes the project. Toyota expects to begin working from the site in late 2016 or early 2017. Learn more in the press release below. In July, all new electrical generating capacity in the US came from renewable sources. The Federal Energy Regulatory Commission's Office of Energy Projects' newest "Energy Infrastructure Update" report says new electric generation put into service last month came from wind (379 megawatts), solar (21 megawatts) and hydro (5 megawatts). So far this year, 53 percent of new energy generation capacity has come from various renewable sources, and none from coal or nuclear. Currently, renewable energy accounts for 16.3 percent of the US electric generation capacity, providing about 14 percent of actual electricity. Read more in the press release from the Sun Day Campaign below. Positive life cycle assessment for the new Audi TT Compact sports car scores high for dynamic performance and efficiency Emissions reduced by 11 percent compared with predecessor Customer benefits from the very first mile Ingolstadt, August 18, 2014 – Dynamic performance and efficiency: The new Audi TT* impressively combines both qualities.