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Japan plans real-world diesel emissions test after companies fail

Japan's transport ministry plans to start real-world diesel emissions tests after an experiment found four models from Toyota, Nissan, and Mitsubishi that produced more nitrogen oxide (NOx) emissions than the nation's rules allow, according to The Japan Times. Regulators there usually only perform emissions checks in the lab. The VW diesel scandal has everyone double-checking their figures. Diesel versions of the Toyota Hiace van, Land Cruiser Prado, and Nissan X-Trail produced up to 10 times more NOx than allowed. The Mitsubishi Delica D:5 was up to five times over the limit, The Wall Street Journal reports. There was no evidence of defeat devices in the vehicles. Mazda performed well in the experiment, though. The CX-5 passed with nearly the same results on the road and in the lab. The Demio, better known as the Mazda2, did nearly as well with only slighter higher figures in the real world than in the controlled setting. The experimenters theorized the reason for the excessive emissions was that cold weather caused the engines' software to shut off the exhaust gas recirculation to prevent damage, according to the WSJ. However, this behavior also increased NOx production. Toyota, Nissan, and Mitsubishi don't have to worry about punishment from the transport ministry because this check was just an experiment. Their models already passed the mandated lab tests, which was the only requirement, according to The Japan Times. As governments begin greater real-world emissions tests, the results suggests diesels aren't very clean. A recent check in France found models from Ford, Renault, and Mercedes-Benz that didn't perform up to the standards. Regulators in India conducted similar evaluations and ordered VW to recall over 300,000 vehicles. Related Video:

How Toyota's 100-year textile history influenced FCV hydrogen fuel cell car

Turns out, Toyota had a surprising ace in the hole when it came to building the new fuel tanks for the FCV hydrogen fuel cell car, which is coming next year. Well before Toyota became the Toyota Motor Company, it was the Toyota Industries Corporation and it made textile looms. This is important because the main structure of the hydrogen tank is wound carbon fiber. When Toyota set out to increase the strength of the tanks to hold hydrogen stored at 10,000 psi (up from 5,000 in the previous tanks), it was able to draw on its 100-year-old history as it designed its car of the future. "A lot of that textile experience came back when we did the tank wrapping." – Justin Ward "We have a lot of experience with textiles," Justin Ward told AutoblogGreen at the 21st World Congress on Intelligent Transport Systems (ITS) in Detroit this week, "and a lot of that textile experience came back when we did the tank wrapping." On top of being able to hold the higher-pressure hydrogen, Toyota's first attempt to build its own hydrogen tank was six times faster than the industry standard, so it saved time and money as well as working better. The company will also be able to inspect its own tanks. Ward is the general manager of powertrain system control at the Toyota Technical Center and hydrogen vehicles are something he knows a lot about. The reason for the stronger, 10,000-psi tanks is because the 5,000-psi tanks only offered around 180-200 miles of range, even with four tanks in the early $129,000 FCHV Highlander hydrogen prototypes. The FCV only has two, but they will able to deliver the 300-mile range that customers told Toyota they wanted. Dropping the number of tanks not only obviously reduced the cost for the tanks themselves but also the number of valves and hoses and other components you need. Despite the benefits of higher compression, going much higher doesn't make sense. 10,000 psi is the "natural progression," Ward said, because "you start to bump up against compression inefficiencies." Think of an air compressor. When hydrogen is produced at a wastewater treatment plant or a reforming site, Ward said, is it at around ambient pressure (14 psi). That has to be raised, using compressors, all the way to 10,000 psi. "That takes energy," Ward said, "and every doubling of pressure adds another doubling of energy needed, so it starts to add up pretty fast if you go too high." Component specifications are also fine at 10,00 psi, but more difficult at higher levels.

The ugly economics of green vehicles

It's fair to say that most consumers would prefer a green vehicle, one that has a lower impact on the environment and goes easy on costly fuel (in all senses of the term). The problem is that most people can't – or won't – pay the price premium or put up with the compromises today's green cars demand. We're not all "cashed-up greenies." In 2013, the average selling price of a new vehicle was $32,086. The truth is that most Americans can't afford a new car, green or not. In 2013, the average selling price of a new vehicle was $32,086. According to a recent Federal Reserve study, the median income for American families was $46,700 in 2013, a five-percent decline from $49,000 in 2010. While $32,000 for a car may not sound like a lot to some, it's about $630 a month financing for 48 months, assuming the buyer can come up with a $6,400 down payment. And that doesn't include gas, insurance, taxes, maintenance and all the rest. It's no wonder that a recent study showed that the average family could afford a new car in only one of 25 major US cities. AutoTrader conducted a recent survey of 1,900 millennials (those born between 1980 and 2000) about their new and used car buying habits. Isabelle Helms, AutoTrader's vice president of research, said millennials are "big on small" vehicles, which tend to be more affordable. Millennials also yearn for alternative-powered vehicles, but "they generally can't afford them." When it comes to the actual behavior of consumers, the operative word is "affordable," not "green." In 2012, US new car sales rose to 14.5 million. But according to Manheim Research, at 40.5 million units, used car sales were almost three times as great. While the days of the smoke-belching beater are mostly gone, it's a safe bet that the used cars are far less green in terms of gas mileage, emissions, new technology, etc., than new ones. Who Pays the Freight? Green cars, particularly alternative-fuel green cars, cost more than their conventional gas-powered siblings. A previous article discussed how escalating costs and limited utility drove me away from leasing a hydrogen fuel cell-powered Hyundai Tucson, which at $50,000, was nearly twice the cost of the equivalent gas-powered version. In Hyundai's defense, it's fair to ask who should pay the costs of developing and implementing new technology vehicles and the infrastructure to support them.