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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 Highlander

Midsize crossovers like the Toyota Highlander tend to play a thankless role in the life of today's modern family.
That's really too bad. With the ability to hold several hyperactive kids and tons of cargo while keeping everyone safe and comfortable in all kinds of climate conditions day in and day out, they're true heroes in the lives of hundreds of thousands of families across the country. Yet their car-apathetic owners often immediately forget about them as soon as their work is done. And nearly all midsize crossovers are thoroughly ignored by enthusiasts whose eyes begin to glaze over at first mention of the phrase "third row."
Toyota is looking to soften the blow somewhat by giving its midsize crossover, the Highlander, a big redesign for the 2014 model year. With a bold new look, updated suspension and a refreshed interior focused on comfort and convenience, Toyota aims to make the Highlander sportier to drive and more striking in appearance, because, as the marketing team explains, "families are going places and they want to get there in style."

Toyota wants you to meet an 'obsessed' hydrogen fuel cell engineer

Like a television-broadcasting company covering the Olympics, Toyota is looking to market its future in hydrogen fuel-cell vehicle production by taking the personal approach. In this case, the Japanese automaker is telling the backstory of Jackie Birdsall, an engineer at Toyota Technical Center who Toyota says is "obsessed" with fuel-cell technology. A Sacramento native, Birdsall is responsible for testing fuel-cell vehicles and making sure hydrogen stations fill the tanks of the cars in a "reasonable" timeframe. Long a gearhead, she attended Flint, MI's Kettering University (formerly General Motors Institute) and, among other places, worked for the California Fuel Cell Partnership before joining Toyota in 2012. Her first car was an '87 Camry. That's one personal side of Toyota's hydrogen push, and shows another way Toyota is introducing the world to this new powertrain (see also: winter performance). The nitty-gritty is made up of things like working with FirstElement Fuel Inc. on a hydrogen-refueling network in California. As for its fuel-cell sedan, which was displayed in FCV prototype form at the Consumer Electronics Show in Las Vegas in January and is due next year, Toyota said it expects the car to have a full-tank range of about 300 miles and a five-minute refueling time. That's if Ms. Birdsall has anything to say about it. Check out Toyota's press release about Birdsall below. Talkin' 'Bout a Revolution A healthy obsession leads Jackie Birdsall and TTC to the forefront of history The word she keeps using is "obsessed." Jackie Birdsall became "obsessed" with cars when she was a teenager. That made her "obsessed" with the history of auto icons like Henry Ford and Lee Iacocca. In 2003, she did an internship with Daimler-Chrysler, leading to an "obsession" with hydrogen fuel cell technology. And now, as an engineer at Toyota Technical Center, Birdsall is "obsessed" with bringing fuel cell technology to the masses. But perhaps you need to be obsessed when you're trying to change the world. After all, revolutions don't blossom from complacency. Leading an alternative fuel revolution is just what Birdsall and her partners on the Fuel Cell Hybrid Vehicle team are doing. Collectively, they're finding tangible ways to reduce fossil fuels in the automobile world and figuring out how hydrogen fuel cells can be useful and affordable. In 2015, that obsession will bear fruit when Toyota's FCV hits the markets in California, Japan and Europe.