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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 previews next Lexus RX with Tokyo-bound JDM Harrier

The Lexus RX shares much with the Toyota Highlander, but its more direct counterpart is the Toyota Harrrier. Never heard of it? That's because Toyota only sells it at home in Japan, and now it's revealed a new one. So if the Harrier is essentially a Toyota-badged version of the RX, then what's the big deal, you ask? The big deal is that the new Harrier which leaked in July, set to debut at the Tokyo Motor Show next week and which you see here isn't quite the same as the Lexus, and those differences could (and in most cases likely will) make their way over to the RX as well.
For starters, the styling is different. Granted that the Lexus version will almost certainly get a spindle-shaped grille, but even so, the Harrier's nose seems to protrude further than the RX's and the headlamps are a notably different shape. The greenhouse is also a different shape, coming to a sharper point at the back, and the mirrors are fixed to the A-pillar not to the door panel. The taillamps are revised, the tailgate has a new profile and there's a pseudo-diffuser at the bottom of the rear bumper. Subtle changes, to be sure, but then Toyota and Lexus are known for their evolutionary approach to styling. The interior has apparently undergone some updates as well, with a more dynamically styled dashboard, a more symmetrical center stack and different seats, steering wheel, door panels... the works. The infotainment display screen has also moved further down from its position in the current RX.
Toyota will offer the new Harrier with a 2.0-liter four mated to a CVT and driving either the front wheels or all four, and a hybrid setup with a 2.5-liter married to a 140-hp electric motor. The RX is offered here with a 3.5-liter V6 either on its own or with an electric assist. We wouldn't expect Lexus to go swapping the larger engines for the smaller ones, at least not for the US market. There's plenty more to the Harrier, of course, than the similarities and differences to the Lexus RX, and if you're buying a premium crossover in Japan, you can delve into the full details in the press release below, together with the images in the gallery above.

Toyota Europe boss says 'reasonable number' of fuel cell vehicles on the way

We know that Toyota is gung-ho about delivering its first hydrogen fuel cell sedan to early-adopter markets like southern California and part of Japan next year. The Japanese automaker's European H2 plans have long been part of the mix, but a new press release shows just how committed Toyota is to hydrogen all around the world. "The volume will be limited, but they will be visible on the streets" – Didier Leroy Toyota says hydrogen fuel cells are a "major, but logical next step" after the company's pioneering work on gas-electric hybrids for 15 years. Didier Leroy, president of Toyota Motor Europe (pictured), said in a statement that he knows there will be H2 hurdles, and so Toyota will start with "a reasonable number of cars" in Europe. "The volume will be limited," he said, "but they will be visible on the streets." Karl Schlicht, Toyota Motor Europe executive vice president, compares Toyota's current hydrogen progress with where the company was with hybrid's in the not-too-distant past. When it comes to infrastructure and cost, he said, "There is of course a long way to go, as with any game-changing technology, but remember the same was said about hybrid only 10 years ago." You can read the full PR below. We don't remember a lot of people saying the infrastructure for hybrids simply wasn't there in 2004, but maybe we missed that memo. TOYOTA EXECUTIVES SET THE SCENE FOR DELIVERING FUEL CELL TECHNOLOGY 16/04/14 from Toyota The next era in Toyota's technology development is about to become production reality, with the market introduction next year of the company's first hydrogen fuel cell-powered car. It's a major, but logical next step for the company, as it builds on the success it has achieved with hybrid over the past 15 years. Karl Schlicht, Executive Vice President of Toyota Motor Europe, is explicit about Toyota's commitment to hydrogen power and the potential of fuel cell vehicles to deliver on the company's ambitions to develop the ultimate eco-car. He says: "Our unique hybrid history and experience have proven invaluable for the next big leap. Back in 2010, we promised our first fuel cell car for 2015 and we are fully on track to honour our commitment. "Fuel cell is a technology that can secure our concept of personal mobility. That's because fuel cells combine the strengths of EVs (electric vehicles) and hybrids, with those of conventional cars.