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Toyota won't face recall for Corolla unintended acceleration

Toyota will not face a recall or further investigation into an alleged unintended acceleration problem in the 2006-2010 Corolla. Following months of analysis, the National Highway Traffic Safety Administration was unable to find a mechanical defect to cause the issue. If there had been a safety campaign to fix the vehicles, it could have affected 1.69 million cars, according to NHTSA. The incident that prompted the investigation occurred in June 2014 when a driver was pulling into a parking spot. The 2010 Corolla allegedly lurched forward under braking and hit an unoccupied Jeep, according to The Detroit News. No one was injured. The owners had the vehicle examined by a Toyota dealer, and it found no problems. They then filed a petition with NHTSA to open a deeper investigation. NHTSA took the family's Corolla and tested it for over 2,000 miles, according to The News. The agency couldn't replicate the problem and found the brakes were capable of keeping the vehicle from moving at full throttle. In their petition, the owners also submitted 143 other unique complaints of this issue in the Corolla, but the Feds found that most of these incidents were due to driver error where the gas or both pedals were accidentally pressed. After taking all of this into account, "NHTSA has concluded that further investigation of the issues raised by the petition is not warranted," the agency wrote in its report. You can read the entire, 23-page explanation for yourself in PDF format, here. INVESTIGATION Subject : Low-speed surging Date Investigation Opened: SEP 19, 2014 Date Investigation Closed: APR 29, 2015 NHTSA Action Number: DP14003 Component(s): VEHICLE SPEED CONTROL All Products Associated with this Investigation Vehicle Make Model Model Year(s) TOYOTA COROLLA 2006-2010 Details Manufacturer: Toyota Motor Corporation SUMMARY: The Agency received a petition on September 11, 2014 requesting an investigation into, "low-speed surging in the 2006-2010 Toyota Corolla [vehicles] with ETCS-i, in which the brakes fail to stop the vehicle in time to prevent a crash." NHTSA conducted a technical review of the material cited and provided by the petitioner, material Toyota submitted in response to a NHTSA formal request, interviews with complainants and manufacturer representatives, as well as the results of testing of the complaint vehicle.

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 has 200 orders for 2016 Mirai hydrogen fuel cell car

Toyota built 500 Lexus LFA supercars between 2010 and 2012 in what Automotive News has called a "secretive workshop." The automaker has been wondering what to do with that production line since the last LFA rolled off in December 2012 and, like so much else for Toyota these days, the answer is a hydrogen car – and in about the same small numbers. The 200 Mirai orders are "mostly from government and corporate fleets." – Masamoto Maekawa The 2016 Mirai fuel cell vehicle will go into production later this month at the old LFA workshop, which is located behind Toyota's Motomachi assembly plant in Toyota City. The skilled workers there have been doing other things (like building bicycles) since the last LFA was finished and now Automotive News says they will hand-build the Mirai so that the car can get the attention to detail Toyota wants and because there won't be that many of the hydrogen cars made for a while. Toyota has already said it will sell only 3,000 Mirai FCVs in the US by the end of 2017 (it won't arrive here until late 2015, with deliveries in Japan starting earlier). With 200 orders already in and a plan to build only 700 in 2015, Toyota is already talking about delivery delays. Toyota's executive vice president for domestic sales, Masamoto Maekawa, said that, "the 200 orders are mostly from government and corporate fleets." Production could remain at LFA Works for a while. One Toyota exec said that even if the company makes 2,000 Mirais a year, that would still be only 10 each day. Doesn't sound like there's going to be anyone working weekends for a while.