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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's $1.6B unintended acceleration settlement approved

Toyota is now one step closer to putting its unintended acceleration woes behind it as it has received approval from the US District Court for the Central District of California to settle loss-of-value claims to vehicles associated with the 2009-2010 recalls.
As we reported back in May, the Toyota settlement is worth $1.63 billion, which, according to Bloomberg, includes a payout of $757 million to affected owners, $227 million to attorneys and an additional $875 million for vehicle upgrades. (We did the math, too, and that totals $1.859 billion, but there is no justification for the discrepancy. Fuzzy math, eh?)
Based on the estimated 22.6 million vehicles said to be included in this suit, that would make the average payment about $33.49 per vehicle, but the article says that owners, lessees and even renters will receive varying amounts ranging from $9.74 up to as much as $10,000. This settlement does not affect suits filed for personal injury or wrongful death.

Ford Fiesta ST in startling track battle against Toyota GT86

On the surface, there's very little that the Ford Fiesta ST and Toyota GT86 (or the Scion FR-S that is sold in the US, or the largely similar Subaru BRZ) share in common. One is a hatchback with power coming from a turbocharged engine routed to the front wheels. The other is a coupe with power coming from a naturally aspirated four-cylinder boxer engine routed to the rear wheels.
Thing is, both of them are reasonably priced performance cars aimed at a similar segment of the automotive marketplace, so a comparison isn't out of the question. It is with all of this in mind that we direct you to the video below, in which the blokes from Evo pit the two manic little machines against one another on a race track. The result? Well, it can be summed up this way: Fast versus fun.
See how the track battle goes down in the video below.