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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.

Lexus takes aim at electric vehicles, again

Lexus is once again taking aim at plug-in vehicles by emphasizing the perceived challenges of recharging batteries, rather than simply filling up with gas or hydrogen. Only this time, Toyota's luxury division appears to be zigging while everyone else is zagging. Of course, the nameplate can use all the help it can get when it comes to hybrid sales. First highlighted by Green Car Reports, Lexus has added a banner to the website of its hybrid vehicles that says "Always Charged. Always Ready." That's a not-so-veiled shot at plug-in vehicles, a sector where Toyota has minimal exposure. Lexus also notes of its hybrid vehicles that there's "nothing to plug in." Of course, there may be sour grapes at play. Through September, sales of its five hybrid models in the US dropped 17 percent from a year earlier to about 21,500 units, and September was particularly tough as hybrid sales plunged 34 percent to almost 1,800 units. Even so, the third quarter likely represented a record when it came to plug-in vehicle sales. We say "likely" because Tesla doesn't break out its US sales, and not all automakers disclose sales of their plug-ins. We calculate that sales for the quarter were at about 36,000 vehicles, up 38 percent from a year earlier. For now, Lexus doesn't sell a fuel-cell model, though it may sell a fuel-cell version of the Lexus LS full-size sedan. Toyota, of course, offers the Mirai, which has moved about 710 units this year. Lexus has gone down this proverbial road before. In 2014, the brand unveiled a similar campaign that highlighted how long it took to recharge EVs, and was ultimately taken to task by electric-vehicle advocates Plug-In America. Lexus apologized for offending anyone and said it'd review content related to hybrid advertising. Doesn't seem like an apology is in order this time out, but that doesn't mean that it's a good strategy. Related Video: Featured Gallery 2018 Lexus LC 500h View 40 Photos News Source: Green Car Reports Green Marketing/Advertising Recalls Lexus Toyota Hybrid

Toyota reveals Tokyo Motor Show concepts

Toyota is getting ready for the Tokyo Motor Show later this month, and to tease us, the Japanese automaker has released photos and information about the concept vehicles it'll be bringing to the show. In all, there'll be five world premieres from Toyota (six if you split the Voxy and Noah minivan concepts), including some vehicles that'll be released in the near future, and others that need more time to incubate.
Let's get the world premieres out first. Toyota is a pioneer of gasoline-electric hybrids, but it's also pursuing hydrogen fuel cell-powered vehicles. The clearest indication of this is the FCV concept, a hydrogen-powered sedan in the same vein as the the FCV-R that will bow at the auto show. (Read more about the FCV, here.)
Other world debuts include the FV2 concept (pictured), a unique, one-seat future vehicle that emphasizes the "Fun to Drive" philosophy; the JPN TAXI concept, a next-generation taxi concept designed with Japanese hospitality in mind; and the Voxy and Noah concepts, next-generation minivans that differ most in exterior design cues and are scheduled to launch in the Japanese market in early 2014.