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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.

2019 BMW Z5 shows off its soft top

BMW continues development work on the Z5, which will succeed the Z4 in its lineup for the 2019 model year. These latest spy shots again show off the Z5's classic sports-car proportions during testing on European roads. As expected, the roadster will switch to a cloth top instead of the retractable hardtop the Z4 uses. The much-anticipated Z5 will be based on a rear-wheel-drive platform that's jointly developed with Toyota. Rumors persist Toyota's version will mark the return of the Supra name, though the Japanese automaker has been silent on the matter. Reports say the cars could be assembled by Magna Steyr in Austria. We expect the Z5 will run four- and six-cylinder engines, and the soft top will help the roadster reduce weight and likely improve performance. It's also possible BMW will build a fixed-roof Z5. We predict the Z5 will appear on the auto show circuit within the next year. The long-running Z4 launched for 2009. Related Video: Featured Gallery 2019 BMW Z5 View 10 Photos Image Credit: CarPix Design/Style Spy Photos BMW Toyota Convertible Performance bmw z5

Toyota struggling in Latin American market, attempting recovery

With uncertainty in the US and Chinese markets, automakers are scrambling to rev up their efforts in what were traditionally secondary markets. Take Toyota's efforts in Latin America. A recent story from The Wall Street Journal highlights the Japanese brand's push in the southern hemisphere, particularly in Brazil, where it has expanded its operations and installed new executives with a greater range of powers, all in a bid to grab a bigger slice of the ever-growing South American pie.
South America is dominated by General Motors, Fiat and Volkswagen, which maintain a combined 60 percent of the market share - Toyota holds a mere 4.5 percent. The WSJ spoke with Steve St. Angelo, Toyota's boss in Latin America, who said, "We are playing catch up, but we're catching up fast. We now have the resources to give the region the attention it really needs and deserves."
That attention includes an all-new, locally produced small car called the Etios. As bewildering as it seems, Toyota wasn't competing in the low-cost economy car market in South America. With the Etios, which arrived in September of 2012, its sales in the first seven months of 2013 are up 75 percent.