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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 expects hybrids will soon reach 20-percent sales volume globally

Hybrids have come quite a long way from their roots as dull, slow, boring ecomobiles. Today, Porsche sells three hybrid models, one of which is the amazing 918 Spyder. BMW will soon sell four, including a low-slung, two-seat sports car. Even Ferrari and McLaren, full-fledged hypercar manufacturers, are embracing the tech. And all of these cars are sold alongside the same sort of boring cars that popularized hybrids in the first place. According to Toyota Chairman Takeshi Uchiyamada, though, we should see an even bigger increase in the number of hybrid vehicles in the coming years.
"I foresee hybrid models pretty soon reaching 20 percent of global sales from about 13 percent to 14 percent now," Uchiyamada-san told Automotive News. Uchiyamada is the man behind the original Prius, which gives him some degree of authority on making predictions about hybrid adoption.
What's remarkable, though, is that the 20-percent figure doesn't include plug-in hybrids, just gas- and diesel-electric models. "Suppliers need higher volumes to slash costs of components specific to plug-in models, including batteries that should be bigger and more capable than the ones used in traditional hybrids," Uchiyamada told AN.

Toyota Alphard and Vellfire JDM minivans look weirder than ever

Around these parts, if you want a Toyota minivan, you'll be looking at the Sienna. But in its domestic market, the Japanese automaker offers an entirely different line of passenger vans. And now it's updated one of its larger models. Or two, we should say. Since Toyota operates parallel dealership networks in Japan, the minivan you see here is sold as the Alphard through Toyopet dealers and the Vellfire in its Netz showrooms. They also get subtly different designs, especially at the front. But stylistic and distribution differences aside, these two models are essentially the same. They're smaller than the Sienna we know in every dimension but height, but larger than the Voxy/Noah and Esquire, and come in a variety of trims and configurations: with a 2.5-liter four, a 3.5-liter V6 or a hybrid powertrain, in seven- or eight-seat configurations, with or without handicapped accessibility, and in trim levels that can more than double their price from the base model to the top Executive Lounge. Initially launched in 2002 and redesigned for 2015, the new Alphard and Vellfire also benefit from a redesigned suspension, better NVH insulation and a more accommodating and upscale interior with new technologies (including a new Panoramic View Monitor, Intelligent Parking Assist and collision-avoidance systems) to make them more comfortable, safer and easier to operate. Between the two models, Toyota expects to sell 7,000 units each month in Japan alone (3,000 Alphards and 4,000 Vellfires) before other markets across Asia are even taken into account. Related Video: Toyota Launches New 'Alphard' and 'Vellfire' Minivans in Japan Toyota City, Japan, January 26, 2015-Toyota Motor Corporation today launched the redesigned "Alphard" and "Vellfire" minivans through dealers across Japan. The vehicles were developed to incorporate the idea of a roomy and luxurious saloon space with a new and unprecedented sense of refinement. The new Alphard and Vellfire possess unshakeable presence with a comfortable ride, exceptional handling stability, and a roomy interior. The Alphard exterior emphasizes luxury, while the Vellfire exterior emphasizes boldness. In addition to high body rigidity, a newly developed double-wishbone suspension was adopted for the rear to achieve a luxurious ride and exceptional handling stability. Extensive sound and vibration dampening and an aerodynamic wind-noise reducing body shape realize a quiet ride at all speeds, befitting of a luxury vehicle.