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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.

Amazon Alexa will become your co-pilot in Toyota, Lexus cars

A number of carmakers have introduced Amazon Alexa voice commands that can activate the locks and climate control on their cars, but Toyota is going a step further with Alexa integration by bringing Alexa into the car. Starting in 2018, Toyota will join the likes of BMW by offering the full Alexa voice-controlled app in Toyota and Lexus vehicles with either EnTune 3.0 or EnForm 2.0 infotainment systems. Though Toyota doesn't specifically say which models, we suspect the Camry and Sienna will be the first, since they're the only Toyotas with EnTune 3.0. With Lexus, the LC, NX, RC, and LS models all have available EnForm 2.0, so any or all of those could get Alexa this year. Toyota suggests a number of ways users could use Alexa in the car, such as for taking notes and setting reminders, activating apps, or for controlling other smart devices, such as the heating and cooling on your house. That suggestion rings strongly to those of us in the midst of the bomb-cyclone winter storm. We imagine you'll probably even be able to order goods from Amazon, too. One thing that is strange is that Toyota has made this leap in connectivity, and yet you still can't get Apple CarPlay or Android Auto on any Toyota or Lexus. This is especially odd as it's safe to assume more people own and use Apple and Android products on a daily basis and on the road than Amazon Alexa. Not to mention the fact that almost every other automaker offers both systems on their vehicles. Either way, mobile Alexa presents some interesting possibilities and is sure to be appealing to fans of the Amazon service. And while only a few models will be available with it in 2018, Toyota and Lexus will expand availability in 2019. Related Video:

Senator pushes for up to life sentence for auto execs found to delay recalls

Democratic Senator Claire McCaskill (shown above) has had it with automotive execs stalling when it comes to recalls. The Missiourian has proposed a new bill, the Motor Vehicle and Highway Safety Enhancement Act, which aims to improve the automotive safety following the high-profile fiascos involving General Motors and Toyota. Aside from a doubling of the budget for the National Highway Traffic Safety Administration over the next six years and the removal of the $35-million limit for fining automakers, the plan includes a provision that would punish auto executives if it's discovered they knowingly delayed recalls. How will it punish them, you ask? Oh, you know, just life in prison. The bill "gives federal prosecutors greater discretion to bring criminal prosecutions for auto safety violations and increases the possible penalties, including up to life in prison for violations that result in death," McCaskill's office told The Detroit News. If a delayed recall led to serious injuries, meanwhile, execs could still face a 15-year stint behind bars. As for that change in the fine structure for automakers, the removal of the limit is complemented by a hefty increase in the per-vehicle fine, from $5,000 to $25,000. With this change, GM could have been on the hook for $55 billion (with a "b") in fines for its bumbling of the ignition switch recall, rather than just $35 million. The News says, though, that NHTSA has "wide discretion" in handing out the fines. Considering a $55-billion fine is enough to sink any automaker, it is unlikely that such a monumental sum would be handed out. Still, the potential threat of such a death sentence should be enough for any automaker to sit up and take notice. "With millions of Americans behind the wheel every day, and more than 33,000 killed on our roads each year, we've got to do more to keep our cars and the roads we drive them on safe," McCaskill said, according to The News. "Painful recent examples at Toyota and GM have shown us we also must make it easier to hold accountable those who jeopardize consumers' safety. For too long, auto safety resources have remained virtually stagnant while cars and the safety challenges they present have become more complex." What do you think? Do you agree with McCaskill's proposed bill? Should the punishments for automakers and execs be more or less harsh? Have your say in Comments. News Source: The Detroit NewsImage Credit: J.