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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.

Weekly Recap: Toyota propels hydrogen fuel cells

Toyota is serious about hydrogen fuel cells, and it wants the auto industry to follow suit. The Japanese automaker said this week it's releasing 5,680 fuel cell patents from around the world, including technologies used on its upcoming sedan, the 2016 Mirai. The move is unusual, but not unprecedented, as Tesla similarly released its electric vehicle patents last year. The idea for Tesla, and now for Toyota, is to spur development of alternative propulsion. "By eliminating traditional corporate boundaries, we can speed the development of new technologies and move into the future of mobility more quickly, effectively and economically," said Bob Carter, Toyota Motor Sales senior vice president of automotive operations, in a statement. Toyota's fuel cell patents will be free to use through 2020, though patents related to producing and selling hydrogen will remain open forever. Toyota said it would like companies that use its patents to share their own hydrogen patents, but won't require it. "What Toyota's doing is really a logical move, and really a good move for the industry," Devin Lindsay, principal powertrain analyst with IHS Automotive, told Autoblog. The announcement was made at the Consumer Electronics Show in Las Vegas. It comes as Toyota prepares to launch the hydrogen-powered Mirai in a limited number late this year in California. The launch will be extended to the Northeastern United States next year. Toyota also has announced plans to support networks of fueling stations in each region to try to smooth consumer adoption. The Mirai has a 300-mile range on a tank of hydrogen, and it takes about five minutes to refill. Fuel cells have been receiving increased attention recently, and Audi and Volkswagen debuted hydrogen-powered cars at the 2014 Los Angeles Auto Show. Honda, another proponent of the technology, also showed its updated FCV concept in November in Japan. The company, however, has delayed its fuel cell sedan a year until 2016. Like Toyota, Honda says its hydrogen-powered car will have a range of 300 miles or more. Meanwhile, Hyundai currently offers leases for fuel-cell powered Tucsons, which have a 265-mile range, in Southern California. Despite the optimism some automakers have for fuel cells, the technology still faces barriers. A lack of filling stations has long held it back, and many consumers are not familiar with the potential benefits.

More powerful 2017 Toyota 86 takes over for the Scion FR-S

Scion is dead, and the FR-S name passes away with it. The rear-wheel-drive sports coupe isn't gone, though, because it's now the the 2017 Toyota 86. To match the new moniker, the latest model finally has a little extra power and more aggressive styling. The public debut will take place at next week's New York Auto Show, and sales begin this fall. "When we announced the transition of the Scion models to Toyota we hadn't planned on changing the names of our cars, but by popular demand, for our sports car, we decided to adopt the global name of 86," said Toyota Division Group Vice President Bill Fay. The 2.0-liter boxer-four's output grows to 205 horsepower and 156 pound-feet of torque – increases of 5 hp and 5 lb-ft – on manual-transmission models. The 86 still isn't the turbocharged rear-wheel-drive coupe of some people's dreams, but at least this is an improvement. (Buyers who opt for the automatic will have to make do with less power and fewer pedals.) Toyota also promises "additional performance" thanks to different gear ratios for the six-speed manual transmission, and there's now Hill Start Assist Control. New shock tuning and spring rates will affect the handling, too. The 86 wears a meaner look than the outgoing FR-S. The biggest change is a new front bumper with a large intake that stretches across the coupe's width, and the two sharp points along the bottom look like teeth ready to chomp down. Toyota also replaces the headlights and taillights with LED units. The twist-spoke wheels are a great accompaniment to the more aggressive look, too. The tweaks are more modest inside, including silver stitching and new materials for the dashboard and doors. Toyota will also display the C-HR crossover concept again in the Big Apple. We won't see the production version until later this year, and sales won't begin until spring 2017 as a 2018 model. Related Video: Toyota to 86 the FR-S Name New Toyota 86 and Charismatic C-HR Concept on Display at New York Auto Show TORRANCE, Calif., March 17, 2016 – With its new home comes a new name and more. The former Scion FR-S will debut as the 2017 Toyota 86 at the New York International Auto Show with interior and exterior changes, as well as suspension and powertrain upgrades. The new Toyota 86 will go on sale at all Toyota dealerships this fall.