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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.

2018 Honda Accord charges into slumping sedan market

DETROIT - Honda on Friday revealed its newest-generation Accord, one of four re-engineered midsize sedans that Asian automakers are betting on to win market share as Detroit automakers shift focus to SUVs, crossovers, and pickup trucks. The new Accord, like rival Toyota's all-new Camry arriving this month, offers major improvements in fuel economy, technology, styling and safety. Honda declined to discuss details ahead of Friday's event in Detroit. The Accord and Camry are pillars of their manufacturers' US businesses, each selling well over 300,000 vehicles a year. In the coming months, Nissan is expected to launch a new Altima midsize sedan, and Hyundai will launch a new Sonata. Both are popular marques that will be promoted heavily. "There has been no new news on the midsize sedan side for three years, and we think this is a great opportunity to bring attention back to the segment," said Jack Hollis, Toyota's head of marketing for North America. Year to date, US passenger car sales are down 11.4 percent, and sales of midsize sedans are down 14.2 percent. Still, Americans bought 7.1 million sedans in 2016. With General Motors and Ford cutting sedan production, and Fiat Chrysler Automobiles abandoning the segment, Honda and its Asian rivals could boost sales with updated models, dealers said. "They could take share from other brands, which is traditionally what happens when a new product is launched," said Pete DeLongchamps, vice president for manufacturer relations at Group 1 Automotive Inc, the third-largest US auto dealer group. "NOT FINDING A PLACE WITH CONSUMERS" The Accord for years was Honda's top-selling model in the United States. Within the past year, US sales of the Honda CR-V have eclipsed the aging Accord, and Honda has expanded production capacity for the compact crossover. Passenger-car sales have steadily declined since 2012, when they made up 51.2 percent of the US market. Sedans have sagged to a 38.1 percent share in the first half of this year. IHS Markit said US consumer loyalty to SUVs and pickup trucks has risen since 2012, but declined for sedans. The new Accord and Camry "may stem the decline," said IHS Markit's Tom Libby. "I don't think they will cause a marked reverse." Improvements to the Accord should boost sales at Galpin Honda in San Fernando, California, general manager Ed Hartoonian said.

Toyota FCV rallies to the hydrogen cause as zero car

It's been two decades since Toyota dominated the World Rally Championship with its Celica Turbo 4WD. But this past weekend, Toyota hit the rally stage in a very different vehicle.
That, as you can see, is the Japanese automaker's Fuel Cell Vehicle (FCV), which is still in its prototype phase. We're still at least half a year away from seeing the FCV in production trim, but the model has already been pressed into duty as the "zero car" at the Shinshiro Rally, the last round of the Japanese Rally Championship.
The zero car, for those unfamiliar, is to rally what a pace or safety car is to circuit racing, driving the rally stage to check for signs of trouble before the competitors put their feet to the floor, so it's not as if the FCV needed extensive modifications. From the looks of things, it just needed some jazzy stripes, mud flaps, probably different rolling stock and an interior with racing buckets and harnesses, roll cage, radio equipment and maybe a bit more ground clearance.