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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.

2020 Ford Escape plug-in vs. Toyota RAV4 Prime, Mitsubishi Outlander PHEV: How they compare on paper

This year is when the entry-level plug-in crossover market really starts to heat up. Both Ford and Toyota have new models in the 2020 Ford Escape and the 2021 Toyota RAV4 Prime. They join the segment veteran Mitsubishi Outlander PHEV, which has been available in the U.S. since the 2018 model year. And of course that means it's time to look at how the numbers add up while we wait for our chance to drive the new competitors. You can find a chart with all the details immediately below, followed by more detailed analysis. Powertrain One of the key factors for any hybrid, particularly plug-in models, is how little fuel they use. Overall, the Ford Escape is the winner with 100 mpg-e, the fuel economy equivalency for the vehicle when assessing it with a full battery. The Toyota is close behind with 94 mpg-e. We're expecting the Escape to also be a bit more efficient when running only on gas, as it reportedly gets 41 mpg. The RAV4 will likely get 40 mpg, or possibly slightly less, since the non-plug-in RAV4 Hybrid achieves 40 mpg combined. Running solely on electric power, though, the RAV4 edges out the Escape with 42 miles of range versus 37. Behind both of them is the Mitsubishi with just 22 miles of range, 25 mpg on gasoline only, and 74 mpg-e with a full battery. One unique feature the Mitsubishi claims is DC fast charging capability, meaning 80% of its electric range can be restored in just 25 minutes, possibly allowing for more electric use depending on where you're driving it. While fuel economy is a priority for hybrids, customers won't want to compromise on other features. The Toyota is easily the least compromising, as it returns impressive range and efficiency while also providing a whopping 302 horsepower and all-wheel drive. The Mitsubishi also has all-wheel drive, but a comparatively paltry 190 horsepower. The Ford produces slightly more power at 200, but is front-wheel-drive only. While low in comparison to the RAV4 Prime, the Mitsubishi and Ford have very competitive output to many comparably-sized conventional crossovers with base engines, such as the Honda CR-V, Chevy Equinox and others. Size and space Naturally one of the reasons for buying a crossover is for its practical shape for comfortable hauling of people and stuff. In this regard, all three crossovers are very close. The Escape wins out with legroom, the Toyota with shoulder room. Headroom is split between the Toyota and Mitsubishi.

Scion's would-be savior C-HR spied before its Toyota rebadging

Scion is dead, but one of its future products, the C-HR concept, is still in development for launch as a Toyota. Toyota does a thorough job of hiding the C-HR's rakish shape on these test cars, but we can spot the concept's design cues. For example, the pointed nose and narrow headlights are present, and the giant box on the roof can't hide the downward arch for the coupe-like rear. The back doors on these examples look larger than before, which suggests a switch to a traditional five-door body rather than the hidden rear openings on the concept. The change would offer easier access to the backseat and make the C-HR a better competitor in the segment against vehicles like the Honda HR-V, Mazda CX-3, and Jeep Renegade. The C-HR debuted as a boldly styled three-door crossover at the 2014 Paris Motor Show. Toyota later restyled the CUV with a more angular shape and extra doors. We most recently saw the compact crossover with Scion branding at the 2015 Los Angeles Auto Show. Rumors suggest the production model's debut at the Geneva Motor Show in March, and it could arrive at dealers in the latter half of 2016. The powertrain lineup likely consists of a four-cylinder engine with a CVT and possibly a hybrid version, too. You'll also get to see the C-HR on the track because Toyota will race the crossover in the 2016 Nurburgring 24 Hours. Related Video: