2012 Toyota Corolla Le on 2040-cars

Auto blog

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 recalling 1.67 million vehicles worldwide in 3 campaigns

Toyota is issuing three separate recalls covering 1.67 million vehicles worldwide with most of those models in Japan. It looks like the campaigns' impact on the US may be smaller, though. According to Reuters, Toyota isn't aware of any accidents, injuries or fatalities affecting the models. Some yet-unnamed Lexus models might also be affected.
The largest of the campaigns does not currently affect any US-market vehicles. About 802,000 units of the Toyota Crown Majesta, Crown, Noah and Voxy in Japan are being repaired to replace a seal that could leak in the brake master cylinder. Those already leaking get a new brake booster, as well, according to Reuters.
The only recall currently believed to affect the US is due to a problem covering approximately 759,000 vehicles with 423,000 of them here. The repair is to fix a faulty fuel delivery pipe that could cause a fire if the fuel leaks out. Unfortunately, we don't know which models it covers. Autoblog spoke to Toyota spokesperson Mona Richard and was told the information was still "under embargo." When exactly that embargo will lift isn't yet known, but we're on the case.

Toyota puts three-wheeled i-Road into public tests in Japan [w/video]

The lucky citizens of Japan are getting it now, and some folks in France will join the fray later this year, but that's about it for public, leaning-trike fun. The car in question is Toyota's three-wheeled i-Road concept electric vehicle. And in addition to being really narrow and quite environmentally friendly, this little EV leans quite a bit when it scoots around curves. Earlier this week, the Japanese automaker started testing the super-narrow vehicles in Toyota City, Japan. They're part of a broader scheme called "Ha:mo" in which people can link shared vehicles with public transportation systems to get around with minimal environmental impact. Grenoble, France, will be the recipient of some i-Road EVs for a vehicle-sharing project that starts later this year. The i-Road weigh about 660 pounds, is less than a yard wide and has a 28 mile per hour top speed. The i-Road was first shown off at the Geneva Motor Show early last year and shortly thereafter was the subject of a groovy video that showed a group of four cruising and leaning through the streets of a Mediterranean village in France. Check out Toyota's video on the vehicle-testing program and the official press release below and read our driving impressions here. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Changing Mobility and Lives, Three Wheels at a Time Residents of Toyota City, Japan, might be wondering what they just saw on the street. If it had three wheels and was leaning around a corner, it was the "i-Road", Toyota's ultra-compact all-electric, all-fun concept. On Sunday, the i-Road, which weighs a mere 300 kg and is less than 90 cm wide, was let loose on public roads at an event to mark its introduction into "Ha:mo", Toyota's optimized urban transport system. Soon, even more i-Roads will be zooming around Toyota city when they are made available to residents at vehicle-sharing stations. And later this year the lucky residents of Grenoble, France, will also be able to have some three-wheeled fun, thanks to a vehicle-sharing project that will last until 2017. Besides being an absolute blast to drive, how could the i-Road actually help you out? Well, picture the following: You just got off work. You get a phone call. You need to get across town, pronto, because your wife just went into labor. But your car is in the shop, there's no time to call a taxi, and your co-workers with cars are stuck doing overtime.