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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 settles for $3M after being found liable in sudden acceleration case

A jury has decided that faulty software was to blame for a crash involving a 2005 Toyota Camry that killed one woman and injured another. This is the first time Toyota has been found liable by a jury in a lawsuit involving sudden acceleration claims. Toyota has maintained that driver error is the most likely cause for cases of sudden acceleration.
Shortly after the jury in the case, which took place in Oklahoma and centered around a crash that injured 76-year-old Jean Bookout and killed her passenger, Barbara Schwarz, reached a verdict that would see Toyota paying $3 million in compensatory damages, a confidential settlement was reached. The jury, which had found Toyota liable for "reckless disregard" for public safety, had yet to decide what punitive damages Toyota would face.
Toyota said in a statement, "While we strongly disagree with the verdict, we are satisfied that the parties reached a mutually acceptable agreement to settle this case. We will continue to defend our products vigorously at trial in other legal venues."

Honda Accord barely edges Toyota Prius as California's best-selling car

The Toyota Prius definitely still matters, at least to car buyers in California. The long-lived hybrid was the state's second-bestselling vehicle in 2014 by moving 71,210 units across all of its variants, including the Prius C. The Toyota was the leader there in 2012 and 2013 but lost the sales crown this time – just barely – to the Honda Accord, which sold 71,578 examples. The results in the Golden State illustrate just how different the auto market there is compared to the rest of the country. Prius sales slumped last year nationwide with a drop of 11.5 percent to 207,372 examples sold. However, according to the LA Times, the model's numbers ticked up two percent in California in 2014. Taken by itself, the standard hatchback model would have been the sixth-bestseller there, with 39,036 units purchased. While the Toyota showed modest growth, it wasn't enough to fend off the Accord's 17 percent year-over-year jump in the state, though. According to the Los Angeles Times, the rest of the California top ten included the Honda Civic, Toyota Camry, Corolla, Ford F-Series, CR-V, Nissan Altima, Sentra and Chevrolet Silverado, respectively. That list was quite a departure from the nationwide bestsellers in 2014, which was led by the F-Series, Silverado and Ram pickups. The Camry was the country's foremost car on the list in fourth place overall to beat the Accord in fifth. The Prius didn't break into the ten biggest sellers in the US last year. Related Video: Featured Gallery 2014 Honda Accord V6 Touring: Review View 42 Photos News Source: LA TimesImage Credit: Copyright 2015 Drew Phillips / AOL Green Honda Toyota Car Buying Hatchback Hybrid Sedan sales California hybrid sales toyota prius c