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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 Tundra appears with revised styling, same mechanicals

Toyota has pulled the curtain back on its 2014 Tundra, showing a truck that has gotten its most significant refresh since its launch as a 2007 model. For better or worse, however, the changes that Toyota has made to the fullsize pickup are mostly cosmetic, with the underpinnings of the vehicle staying unchanged.
The most obvious revision for 2014 is to the bluff front fascia of the truck. There's a new, taller squared-off grille decorating the Tundra's nose, along with a revised, three-part front bumper design. The optional black grille-frame strikes us as an acquired taste, to say the least, but other models, like the Limited above, is all clad in chrome. Fenders and wheel wells are more square than in the out-going truck, too. Perhaps most significant is the revised bed design, which Toyota calls "all-new," with new sheet metal on the sides, a revised tailgate and a very subtle integrated spoiler.
Inside, Toyota has given buyers some new seats and a new-look instrument panel. A backup camera (always handy on big trucks) is now standard equipment on all grades, as is Bluetooth connectivity. Blind spot monitoring is a new, optional feature as well. In all, as with the exterior mods, the changes in-cabin are far more evolutionary than revolutionary.

Renault Scenic EV takes first place as (European) Car of the Year

The automobile awards season may not be over, but two of the more prestigious annual races came closer to a climax this week. One might need a scorecard to keep track. We’re focused here on two events: the World Car of 2024, now reduced to three finalists in six categories. Then thereÂ’s the Car of the Year, known in some quarters as the European Car of the Year. Except that the car doesnÂ’t have to be European to win, only sold there. Got that? Winners out of the way first: At the Geneva Motor Show on Monday, the Renault Scenic E-Tech all-electric has been voted Car of the Year 2024. The Scenic is a fairly compact, somewhat stylish SUV for Europe only, and is the seventh vehicle from the French brand to win the award. It sells in the United Kingdom for about $47,500. The other six finalists that had made the first cut of voting in November were the BMW 5 Series, BYD Seal, Kia EV9, Peugeot E-3008/3008, Toyota C-HR, and Volvo EX30. The trophy winner was chosen by a jury of 59 motoring journalists from 22 countries. Scenic came in first place with 329 points. The Seal was the first Chinese-made car to make this awardÂ’s shortlist; it finished sixth out of seven, just up from the Toyota. One judge explained his decision to grant the Seal zero votes. Writing in Top Gear, Paul Horrell wrote this entertaining critique: “It looks good and is well specified, so makes a strong market entry. The advanced electric system and cobalt-free battery are commendable too, and it's enjoyable enough to drive quickly. That's undermined by an agitated ride over bumps, and the logic of screens and switches is pretty eccentric.” Recapping the World Car of the Year 2024 update, the sponsors shared the stage at Geneva on Monday with the Europeans as well, although they revealed only the top three finalists in six categories. For the ultimate prize, they are the Kia EV9, the Volvo EX30 and the BYD Seal. The winners will be announced March 27 at the New York International Auto Show. Here's more on the World Car finalists. By the Numbers Geneva Motor Show New York Auto Show BMW Kia Toyota Volvo Peugeot Renault Green Automakers Best Cars