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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's new TNGA platform could boost Prius to 58 mpg

First, let's put the necessary context around the phrase, "Toyota New Global Architecture platform." The platform is important, but it is just one flowering bud sprouting from the real action, which is the production processes that will create it. It is crucial to understand that TNGA is fundamentally about a revolution in how Toyota designs and builds its cars - it even includes an overhaul of management and human resources - with one of the benefits being the new platform that the 2016 Prius will ride on. The Daily Kanban goes in depth about the changes, but integrated development for powertrain and platforms serves to reduces costs through more parts-sharing at the same time as it creates more cohesive platforms that are lighter, more compact, and have more efficient layouts. Regarding hybrids, Toyota says the new drive unit layout along with small components could raise hybrid efficiency "by more than 15 percent." That might enable the 2016 Prius to return 57.5-mpg combined - almost 59 in the city, 55 on the highway. Plus, the higher rigidity, lower center of gravity, and better suspension of the new platform will provide a better driving experience. All of these changes will be reflected in platforms for large and rear-wheel-drive vehicles, too. It is factory and build-process refinement that allows the development advances to be fully exploited. Toyota is making its lines more flexible, partly by having actual assembly lines that can easily be shortened, lengthened, or trucked somewhere else, and partly by introducing machines that can build parts for many different vehicles on the same line as needed, without using molds. The flexibility extends to capital investment, too, with much less money needed in order to switch to a new product build. Toyota says it is doing this to "improve core vehicle performance and product appeal," the overhaul making it simpler to produce new designs and features. Factory workers benefit from the flexibility as well; being able to build more types of cars means they aren't hamstrung by the sales fortunes of a small number of models. You'll find plenty of specifics in the press release below. Making Ever-better Cars: A Progress Report "Sudden and drastic changes in the business environment mean that conventional ways of thinking and doing business can no longer help us grow sustainably.

This 1,000-horsepower, rear-drive Toyota Corolla iM could be yours

We were amazed last year when we learned that Papadakis Racing built Fredric Aasbo a rear-drive, 1,000-horsepower 2017 Toyota Corolla iM for drifting. Now we're amazed that the car could end up in the hands of an average person, because the car is currently going for auction on Bring A Trailer. Just as a quick recap for those that might have missed hearing about the car last year, the little Toyota hatch features a turbocharged and nitrous-injected 2.7-liter 2AR-series Toyota four-cylinder. Variants of that engine are found in older Toyota RAV4s and Camrys. According to Bring A Trailer, the engine hits 1,000 horsepower and 850 pound-feet of torque when running on E85. Power goes through a four-speed dog box manual transmission to the rear wheels. Now there is the question of what you would do with such a mad machine. One possibility is to run it again in the Formula Drift series the car was built for. Bring A Trailer reports that it should be legal for the 2019 season, and with extra parts and wheels, you would be in a good spot to get started. The seller does note that all the graphics and sponsor decals would have to be removed if it's entered again. Even if you didn't run it in a professional drift series, it would probably be a fun car to use in more grassroots drift events or even just as a track car of some sort. There's also one more potential option that would be totally absurd. You see, it appears Papdakis Racing started with a factory-built, street legal Corolla iM that could have easily gone on to see a life of ferrying a young couple or family around in efficient, affordable style. As such, it should have a VIN that could be used to register and insure the car without too much trouble. It even still has functional lights. As long as you're in a state that doesn't have modification or emissions restrictions, it could be possible to make this a street car. Now we're not positive on this, so do your due diligence before plunking down cash for it, but it does seem possible, and it would be crazy and awesome. Related Video: