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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.

Mazda ad showing Facebook updates while driving criticized by Senate committee [w/video]

Senate Commerce Committee Chairman Jay Rockefeller, D-WV, held an all-day summit on Thursday to discuss the dangers of using modern technology while driving, during which an ad that Mazda aired during the Super Bowl was used as an example of the worrisome future towards which we're headed. While seemingly innocuous at first glance, the ad, which can be seen below, shows a brief glimpse of a driver using the Mazda Connect infotainment system in a Mazda3 to check/update his Facebook page while driving down the road.
Officials from major communications companies like Samsung, Google and Apple attended the summit, as well as representatives from automakers including General Motors and Toyota. A representative from Mazda was not present despite the company's own currently available technology being used as the poster child for the issues being discussed.
According to Automotive News, Senator Rockefeller warned the automaker and communication execs on hand that he will propose legislation to regulate the use of technology while driving if they don't work together to implement their own standards more quickly. Michael Robinson, GM's vice president of sustainability and global regulatory affairs, argued that his company has had distracted driving guidelines in place for 15 years since the advent of its OnStar system, noting that the technology in question has also helped the automaker save lives through automatic crash detection and calls to 911.

Legendary off-road cars and SUVs that were never sold in America

America has long stood proud as the land of 4x4s, but many of our best-selling off-roaders would flop on the European market due in part to size constraints. Can you imagine trying to park a Ford Bronco Raptor in a town built by the Romans? Or, how much it would cost to fill up a Chevrolet Silverado HD ZR2 if you're paying $8 for a single gallon of gas? Historically, most of the 4x4s sold in Europe have been tailored to the local market. Here are five cool European-market off-roaders that have never received permission to hang out with the Jeep crew in Moab. 2014 Dacia Duster View 10 Photos Dacia Duster In a way, the original Dacia Duster released in 2010 is the NA-generation Mazda MX-5 Miata of Europe's off-roader segment. I'm not talking about handling; it takes a turn with the liveliness of a blimp. But, like the original Miata, the first-generation Duster brought a big serving of modernity to its segment. It gave buyers a far more daily-drivable alternative to the ancient Lada Niva without sacrificing off-road capacity, in the same way that the first Miata provided top-down enthusiasts with a more up-to-date alternative to British and Italian roadsters of the era. Cheap and cheerful, the Duster is closer to a crossover than to a burly, body-on-frame SUV. It's built on a unibody platform, powered by a relatively small four-cylinder engine, and compact enough to zig-zag through crowded urban centers. Unlike, say, the Nissan Qashqai (which we knew here as the Rogue Sport), it was designed for mild off-roading — it appeals to folks who live in rural areas, adventure-minded buyers, and first responders. It wasn't offered with a two-speed transfer case or locking differentials, but models equipped with the optional part-time four-wheel-drive system (front-wheel-drive came standard) featured a six-speed manual transmission with an ultra-low first gear. Dacia sold the original Duster through 2017 in many European countries, though production continued for several more years in overseas markets (where the off-roader often wore a Renault badge). Its successor, which is still built in 2023, arrived in 2017 with the same focus on off-roading but a longer list of features and a nicer interior. More than a decade after its launch, the original Duster remains a common sight.