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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.

2014 Toyota Corolla shows its new Euro-spec nose [w/poll]

After tons of teasing, Toyota finally unveiled the all-new 2014 Corolla in the wee hours of the - at least to those of us here in the Midwest. The fresh new face of the US-spec car takes a number of cues from the Camry and Avalon sedans, and in S trim with the large alloy wheels and blacked-out front fascia, we'd even venture this is the most boldly styled North American Corolla to date (faint praise as that may be).
Of course, our friends in other markets will also be getting fully updated versions of the Corolla as well, and here, we're getting our first glimpse at the European-spec car, complete with a very different front fascia that, at least in this trim, seems to take a more conservative design approach. A quick poll of the Autoblog staff shows that we're torn as to whether or not we prefer this European look to our North American-specific car, but at least in the sporty-ish S trim, we think the Americans may have got the better end of the deal.
The Euro-spec Corolla actually shares a lot of its design with its larger platform-mate, the Auris, a car that we don't - and likely won't - get in the States. Inside, the European Corolla looks basically the same as the NA car, and while market-specific engines and specifications haven't been released yet, it's expected that the Corolla will share much of its dirty bits with the European Auris, as well.

Toyota offered $146.5 million to build Lexus ES in Kentucky

Toyota posted a media advisory yesterday saying that Akio Toyoda, president of Toyota, and Jim Lentz, CEO of Toyota North America, would be making a production announcement tomorrow in New York City, and Automotive News reports that the automaker will be announcing a plan to domestically produce the Lexus ES. According to the report, numerous plants are competing to build the ES in North America, and the State of Kentucky has offered the automaker up to $146.5 million to build the luxury sedan at the Georgetown, KY assembly plant.
If Georgetown gets the ES, which has been built in Japan since its debut in 1989, it would be built alongside the Toyota Camry, which is somewhat ironic since in our review of the 2013 Lexus ES350, we wrote that this ES finally says "goodbye to its Camry roots." In order to get the whole amount offered, the article states that Toyota would have to invest $531.2 million and hire 570 full-time workers at the plant, which doesn't sound all that unreasonable since the plant would require an additional 50,000 units of annual production, not to mention the fact that the Georgetown facility is already at its capacity for building the Camry.