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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 gives a free RAV4 to 50-millionth customer [w/video]

Not surprisingly, the 50-millionth Toyota product sold in the US was a Camry, but Toyota had a big surprise in store for Michael Dee, the buyer of said milestone vehicle. Toyota group vice president Bill Fay showed up at Dee's house to not only personally thank him for the purchase, but also completely paid off that brand new Camry, presenting the owner with a clear title.
But that wasn't all. As you can tell from the image above, Fay had one more trick up his sleeve. The group VP brought along a brand new 2013 Toyota RAV4, which was also presented to Dee in appreciation. The best part is that Dee's genuine amazement was all caught on video, which is posted below.

Next-gen Toyota Prius spied inside and out

Toyota has built itself into the industry's standard-bearer when it comes to hybrids, and it isn't going to let the poster child for gas-electric vehicles get stale on the market. These spy shots captured in California are our first good look at the next-generation Prius, which could come to market wearing a 2015 model year designation.
Even though it looks like Toyota may have blown its annual camouflage budget on this mule, we can clearly see that it will have the same iconic half-moon design that has been with the car since 2003. If so, this goes against reports from last year that suggested the car would be getting a different look inspired by the 2013 NS4 Concept. Although, this could also indicate that the Prius family will continue to grow - adding a new sedan - to the existing Prius C, Prius V and Prius Plug-In lineup.
These spy shots also give us an indication as to what the interior will look like, with a more stylish three-spoke steering wheel and an instrument panel design that sort of reminds us of a BMW. On the other hand, all the tape, cobbled together pieces and lack of space for a center stack display screen has us thinking this isn't what the final product will resemble.