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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.

Fernando Alonso reportedly will race for Toyota at Le Mans

When it was recently announced that Fernando Alonso would race in the 24 Hours of Daytona in January, it was described as a warm-up for an eventual attempt to win Le Mans. "Eventual" may come pretty fast: It now looks like the Formula One champion will race in the Le Mans 24 Hours next season as well. Or so reports BBC Sport, which says he'll race for Toyota. But wait, there's more: The BBC also says he's in talks with Toyota to drive most of the entire World Endurance Championship — while keeping his day job driving for McLaren in F1. "Le Mans is agreed," a source close to Toyota told the BBC. "The rest of the season is still being negotiated, but it looks like he will do most of the races." BBC's sources say Alonso will drive a Toyota WEC car in the season's last race, in Bahrain on Nov. 19, to get his feet wet. The season's final Formula One race is the Abu Dhabi Grand Prix on Nov. 26. Neither Alonso nor Toyota would confirm an impending deal. Alonso said at practice for this weekend's Brazilian Grand Prix: "So far, nothing to comment. We will see. Just rumors." What's motivating him is this: He's 36 years old and is intent on becoming only the second driver, after Briton Graham Hill, to win motorsport's Triple Crown. That entails winning the Formula One title (or just the Monaco Grand Prix according to one interpretation) as well as Indianapolis and Le Mans. He has won Monaco as well as the 2004 and 2005 world titles. He recently signed a contract extension keeping him at McLaren in 2018. As for the Indy piece of the Triple Crown, Alonso famously raced there this year and was running competitively when his Honda engine failed in the closing stages of the race. So expect to see him there again as well. Racing with Toyota at Le Mans and other endurance races should give him better luck than he had this season with McLaren-Honda in F1 and at Indy. Though Toyota has never won Le Mans, it is known to be developing a new WEC car. Traveling the globe to race in both the WEC and F1 in the same season sounds grueling, but it might be possible. The circuits have provisional schedules, and there's just one conflict — the U.S. Grand Prix and a WEC race in Japan are both penciled in for Oct. 21. But McLaren sounds none too keen on him doing the whole WEC schedule. McLaren racing director Eric Boullier told the BBC: "He has said he is keen to do some races outside. There is a case-by-case discussion. His main and first focus is F1, so that has to be the priority.

2020 Ford Escape hybrids vs other crossover fuel sippers: How they compare on paper

Along with a new generation of Escape, Ford also reintroduced the world to the 2020 Ford Escape Hybrid. And if that weren't enough, Ford is adding a plug-in hybrid version. This is a sign of the times: people are more crossover crazy than ever, but are also seeking ways to use less fuel, whether it's for environmental or purely money-motivated reasons. The Ford hybrids aren't the only fuel-efficient compact crossovers on the market. They will be going head-to-head with conventional hybrids including the 2019 Kia Niro, 2019 Nissan Rogue Hybrid and 2019 Toyota RAV4 Hybrid. There are other plug-in hybrids including the 2019 Subaru Crosstrek PHEV, 2019 Mitsubishi Outlander PHEV and the plug-in version of the 2019 Kia Niro. There are even a couple diesels in the form of the 2019 Chevy Equinox and 2019 GMC Terrain. So we've rounded up the details on all these crossovers to see who leads and lags in criteria such as power, fuel efficiency, space and price. Check out all their details below. 2019 Subaru Crosstrek Hybrid View 68 Photos How do their engines and fuel economy compare? Conventional Hybrids and Diesels Let's face it, if you're buying one of these crossovers, one of the things that matters most to you is just how frugal with fuel they are. We'll start off with the conventional hybrids and diesels, and the clear victor is the Kia Niro, which in base FE trim, manages to hit 50 mpg combined. This is thanks to it sharing its powertrain with the Hyundai Ioniq, the Hyundai equivalent of the Toyota Prius. Buyers should take note that only the FE returns such high fuel economy. The LX and EX drop to 49 mpg, and the S Touring and Touring get 43. Even then, the least efficient Niro is the most efficient of the normal hybrids and diesels. It is nearly the least powerful, though, with 139 horsepower. Just behind it is the Toyota RAV4 Hybrid. It delivers 40 mpg combined, and it has an ace up its sleeve: it comes standard with all-wheel drive. Every other vehicle in this powertrain group has front drive standard, and the Niro isn't available with all-wheel drive at all. If that weren't enough, the RAV4 Hybrid also boasts the most power at 219 horses. While we can't say anything about Escape Hybrid fuel economy, we do know that it will make 198 horsepower, which is close to the class-leading RAV4. The least powerful of these is the Equinox and Terrain, and they return the worst fuel economy at 32 mpg.