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Tougher than steel: Wood pulp could make lighter auto parts

KYOTO, Japan — The global push among carmakers to make ever lighter vehicles is leading some auto suppliers in Japan to turn to what seems like an unlikely steel substitute — wood pulp. Japanese researchers and auto component makers say a material made from wood pulp weighs just one-fifth of steel and can be five times stronger. The material - cellulose nanofibers — could become a viable alternative to steel in the decades ahead, they say, although it faces competition from carbon-based materials, and remains a long way from being commercially viable.> Related: Jay Leno drives the Renew cannabis car — hemp you can't dent Reducing the weight of a vehicle will be critical as manufacturers move to bring electric cars into the mainstream. Batteries are an expensive but vital component, so a reduction in car weight will mean fewer batteries will be needed to power the vehicle, saving on costs. "Lightweighting is a constant issue for us," said Masanori Matsushiro, a project manager overseeing body design at Toyota. "But we also have to resolve the issue of high manufacturing costs before we see an increased use of new, lighter-weight materials in mass-volume cars."A NEW PROCESS Researchers at Kyoto University and major parts suppliers such as Denso Corp, Toyota's biggest supplier, and DaikyoNishikawa Corp, are working with plastics incorporated with cellulose nanofibers — made by breaking down wood pulp fibers into several hundredths of a micron (one thousandth of a millimeter). Cellulose nanofibers have been used in a variety of products ranging from ink to transparent displays, but their potential use in cars has been enabled by the "Kyoto Process," under which chemically treated wood fibers are kneaded into plastics while simultaneously being broken down into nanofibers, slashing the cost of production to roughly one-fifth that of other processes. "This is the lowest-cost, highest-performance application for cellulose nanofibers, and that's why we're focusing on its use in auto and aircraft parts," Kyoto University Professor Hiroaki Yano, who is leading the research, told Reuters in an interview. The university, along with auto parts suppliers, are currently developing a prototype car using cellulose nanofiber-based parts to be completed in 2020.

Toyota to enter modern turbo four-cylinder era with Lexus crossover

Toyota has sat quietly on the sidelines as many of its competitors have armed themselves in recent years with lower-displacement turbocharged four-cylinder engines in an effort to gain better fuel efficiency numbers and flatter power curves. It's a strategy largely shared by fellow countryman Honda, who turned away from offering forced-induction four-cylinder models in North America after its first-generation Acura RDX failed to find buyers. Toyota itself has no lack of experience with turbo fours, having built some humdingers for cars like the MR2 and Celica All-Trac back in the 80s and 90s. It's also offered factory-warranted turbos through its TRD performance parts division more recently.
Now, Automotive News is reporting that the world's largest automaker is finally poised to rejoin the turbo-four production-car fray in North America, but it won't be a sports car that delivers the first force-fed punch, it will be a new small crossover model for Lexus. We first showed you spy shots of the NX last week in mule form, and Automotive News says the small softroader will carry a 2.0-liter turbo four in its engine bay when it rolls on to world markets in 2014 or early 2015. That model, the NX 200t, will be joined by the NX 300h, a hybrid variant. It isn't immediately clear when US buyers will see the turbo model, however, it's possible that the hybrid could bow first - the story quotes an anonymous company source suggesting that Americans might not see the engine offering until sometime in 2015.
AN further posits that the new 2.0-liter will likely supplant the company's 2.5-liter V6 in the IS sedan and the same-displacement four-cylinder in the Toyota RAV4, but does not indicate where the new engine will be built.

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.