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J.D. Power study sees new car dependability problems increase for first time since 1998

For the first time since 1998, J.D. Power and Associates says its data shows that the average number of problems per 100 cars has increased. The finding is the result of the firm's much-touted annual Vehicle Dependability Study, which charts incidents of problems in new vehicle purchases over three years from 41,000 respondents.
Looking at first-owner cars from the 2011 model year, the study found an average of 133 problems per 100 cars (PP100, for short), up 6 percent from 126 PP100 in last year's study, which covered 2010 model-year vehicles. Disturbingly, the bulk of the increase is being attributed to engine and transmission problems, with a 6 PP100 boost.
Interestingly, JDP notes that "the decline in quality is particularly acute for vehicles with four-cylinder engines, where problem levels increase by nearly 10 PP100." Its findings also noticed that large diesel engines also tended to be more problematic than most five- and six-cylinder engines.

Toyota's HaMo urban mobility carsharing program comes to France

We're guessing no one's nuts enough to try to take one of Toyota's three-wheeled leaning electric i-Road vehicles up into the French Alps. Still, the town of Grenoble, France, which sits at the foot of the mountains, has received 35 of those vehicles as part of a carsharing pilot program. Toyota's thrown in 35 four-wheel Auto Body COMS vehicles into the program as well. Grenoble, which is about 200 miles north of Marseille, was presumably chosen because of existing carsharing programs run by Cite-lib. This program, dubbed "Cite lib by Ha:mo," goes a little more futuristic, though, as it's part of what Toyota calls its "Ha:mo" plan (Ha:mo is short for "harmonious mobility"). The program will run for three years and includes 27 charging stations near bus lines and train stations. The public will be charged anywhere from three to 19 euros ($3.80 to $24.50 US) to use the vehicles for between 15 minutes and four hours. The good news is that drivers can pick up the vehicles in one location and drop them off in another. Toyota started testing the i-Road vehicles in Toyota City, Japan, this past March. The trike is about three feet wide and has a top speed of 28 miles per hour. Check out Toyota's press release below and read AutoblogGreen's "First Drive" impressions of the i-Road here. "Cite lib by Ha:mo", a New Type of Urban Mobility Based on Ultra-Compact Electric Vehicles Connected to Public Transport, Launches in Grenoble, France This innovative car-sharing service aims to prepare the City and agglomeration of Grenoble for electric mobility within a comprehensive multi-modal mobility plan. The three-year trial project brings together the competencies and services of five partners: the City of Grenoble, the Metro Area, French electricity company EDF and its affiliate Sodetrel, Toyota, and Cite lib, the local car-sharing operator. 35 three-wheel Toyota i-ROAD and 35 four-wheel Toyota Auto Body COMS will be available for short city trips in 27 charging stations installed and operated by Sodetrel - including for one-way trips from one station to another. A total of 120 charging points for the project and 41 for other plug-in vehicles will be added to the city's transport infrastructure. A simple pricing plan dubbed "3, 2, 1 euros" for respectively the first, second and third 15-minute increments will be proposed to Grenoble citizens.

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.