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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.

400-hp Toyota Hybrid-R Concept gets second teaser

Toyota has released a second teaser of its Hybrid-R Concept, along with an estimation of the show car's power output. Using technology that's "similar to that used by Toyota Racing's TS030 Hybrid race car," the concept is expected to deliver over 400 horsepower.
The press release also mentions that the new concept is based on a current production model. While it's difficult to tell from the sole teaser image of the car's body, rumors are flying that it's related to the Yaris. If that's the case, though, it's difficult to know what to make of this concept. The teaser image is quite dark, but we played around with the exposure and came up with an image that reveals more details about the new concept. Take a look at the related gallery, below, to see the high-exposure image. We'll find out for certain what the Hybrid-R is in a few weeks at the Frankfurt Motor Show. Let us know what you think Toyota's newest concept is in the comments.

2020 Kia Telluride comparison: Specs and pricing versus other 3-row crossovers

The 2020 Kia Telluride is a three-row family crossover that slots into the top spot in Kia's SUV lineup. It does not replace the three-row Sorento — rather, this bigger, more luxurious model is intended for those who need even more space. And that they'll certainly get, because as you'll see below, the Telluride is one of the biggest crossovers on the market. In this comparison of engine specs, dimensions, pricing and photos, we'll take a look at the 2020 Telluride versus the Honda Pilot, Subaru Ascent, Toyota Highlander, the all-new 2020 Ford Explorer, and the Telluride's mechanically related cousin, the equally new 2020 Hyundai Palisade. Of course, those just represent one corner of an iceberg that also includes the Mazda CX-9, Chevrolet Traverse, GMC Acadia and Dodge Durango. Passenger space Like most other entries in the three-row segment, the Telluride offers seven- or eight-passenger capacity. The difference is determined by whether you get second-row captain's chairs. Judging by the Telluride's 55.3 inches of third-row shoulder room, it looks like it won't be quite as spacious with three kids across back there as it would be in the Pilot or Ascent. Two inches can make a big difference in this regard. Third-row legroom is very competitive, however, and if it's indeed just as spacious back there as the Pilot and Ascent, two full-sized adults should be able to fit quite comfortably. Its third-row headroom is also quite good, one of the areas in which the Telluride surpasses its otherwise comparably sized Palisade cousin. If you're wondering about second-row space, there's really nothing outstanding to glean from these specs. As expected for this segment, it's huge, with abundant leg- and headroom. There should be no problem fitting child seats. Cargo space The Telluride would seem to have class-leading space behind its raised third-row seat. If we were to guess, this is the result of its rather boxy tailgate and roofline design. This should also help explain why it has more maximum space than all but the Explorer. Space with the third row lowered is middle of the pack, but when you're talking about vehicles this size, the differences in cubic feet behind the second-row ultimately don't matter much. 2020 Kia Telluride View 46 Photos Performance and Fuel Economy The Kia Telluride has the same powertrain as the Hyundai Palisade, although their tuning and consequent driving experience may differ even if their specs are seemingly the same.