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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.

Next-gen Toyota 86, Subaru BRZ could arrive by 2021

If these rumors are true, a small but dedicated core of fans could be in for a treat. According to Japan Times — and citing unspecified "sources" — Toyota and Subaru are developing a next-generation 86 and BRZ, with a possible launch around 2021. The new car(s) would reportedly have more power, improved handling and newer safety features. According to the report, the rear-drive sports coupes could do away with the current 2.0-liter engine in favor of one with a larger 2.4-liter displacement. The Japan Times sources say the next-gen 86 will also have a lower center of gravity, which will translate to an improvement on the car's already impressive cornering stability. Theoretically, the 2.4-liter in question could be the new FA24 mill used in the upcoming Subaru Ascent crossover that's turbocharged to produce 260 horsepower and 277 pound-feet. That output would be a mammoth jump from the current Toyobaru pair, and it seems doubtful that's what possible second-generation cars would get. Nevertheless, it's at least consistent with recent comments from Toyota engineer Tetsuya Tada that indicated a more powerful, turbocharged 86/BRZ would not be possible unless there was a new, next-generation model. In an interview with Australia's CarAdvice, Tada said, "I do like turbos, however if we come up with a turbo version of the 86 and boost up the power that would result in the necessity of changing the basic configuration completely, to come up with a car that I would be satisfied with." "One characteristic of the 86 is that in terms of the front balance it's slightly front loaded so it makes the handling more fast and agile," he continued. "So if we were to come up with a turbo version, we would have to go change the weight balance between the front and the rear. That means we have to come up with a completely new platform, so it's not about just changing or slight modification in the engine parts." Note that "we have to come up with a completely new platform" does not equal "we are coming up with a completely new platform." He could be talking strictly hypothetically, it could be a wink-wink nudge-nudge implication that his team is already hard at work, or things could've just been a bit fudged in translation. In any event, as hopeful as we are about the possibility of a new generation of Subaru BRZ and Toyota 86, we can't help but maintain a healthy dose of skepticism that the partnership will continue as the Japan Times report suggests.

Jim Lentz exposes more details behind Toyota's move to Texas

Toyota's North American CEO Jim Lentz has already given us a rough idea of what prompted the company's surprise move to the Dallas suburb of Plano, TX from its longstanding headquarters in Torrance, CA. A new story from The Los Angeles Times, though, delivers even more detail from Lentz on the reasoning for the move, what other cities were considered and why the company's current host city wasn't even in the running.
Of course, one of the more popular reasons being bandied about includes the $40 million Texas was set to give the company for the move, as well as the state's generous tax rates. According to Lentz, though, the reason Toyota chose Plano over a group of finalists made up of Atlanta, Charlotte and Denver, was far simpler than that - it was about consolidating its marketing, sales, engineering and production teams in a region that's closer to the company's seat of manufacturing in the south.
"It doesn't make sense to have oversight of manufacturing 2,000 miles away from where the cars were made," Lentz told The Times. "Geography is the reason not to have our headquarters in California."