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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.

Toyota produces millionth truck in Texas

After going online in 2006, Toyota's San Antonio, Texas truck plant has just built its one-millionth vehicle, the 2014 Tundra 1794 Edition you see above. The plant originally focused on just the Tundra pickup, but the smaller Tacoma started rolling off the line there in 2010, as well.
Fittingly, the 1794 Edition (a new premium trim level for 2014) pays homage to the property on which the Toyota plant now resides - a ranch that was founded in 1794. Scroll down for the official press release for the plant's milestone, and be sure to check out the full gallery of Tundra 1794 Edition images as well.

Cleanliness of Toyota Mirai fuel cell exhaust depends on air quality

Is the water vapor coming out of Toyota's first production fuel-cell vehicle drinkable? If you're driving through the Sierra Nevadas? Probably. Cruising through Beijing? Not so much. Toyota executive Seiji Mizuno discussed whether the water vapor emitted from the Toyota Mirai is safe enough to drink and, according to Automotive News, the short answer is "yes," since the slightly-acidic vapor has "fewer organic impurities" than milk. The catch, though, is that the vapor immediately gets mixed with the surrounding air. That means that there's always the chance that something funky gets mixed in with the air intake, especially if the Mirai's driving through a smog-infested city. That makes the idea of swigging off the tailpipe a slightly riskier venture, so it's best to keep that reusable bottle full of tap water handy. Toyota, which recently showed the Mirai off at the Los Angeles Auto Show, confirmed earlier this month that the Mirai would start sales in California in 2015 with lease rates starting at $499 a month. While the model's MSRP will be $57,500, federal and state incentives could bring that number to less than $45,000. Fewer than 200 Mirai vehicles will be available in the US by the end of next year.