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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 urges owners of old Corolla, Matrix and RAV4 models to park them until airbags are replaced

DETROIT — Toyota and General Motors are telling the owners of about 61,000 older Corolla, RAV4, Matrix/ Pontiac Vibe models to stop driving them because their Takata airbag inflators are at risk of exploding and hurling shrapnel. The urgent warning Monday covers: Certain Corolla compact cars and Matrix hatchbacks from the 2003 and 2004 model years. RAV4 small SUVs from 2004 and 2005. Also covered are about 11,000 Pontiac Vibes from 2003 and 2004, which are essentially the same as the Matrix and were made at the same California factory. Most of the vehicles are in the U.S. “If the airbag deploys, a part inside is more likely to explode and shoot sharp metal fragments, which could cause serious injury or death to the driver or passengers,” Toyota said in a statement. Owners can go to nhtsa.gov/recalls and enter their 17-digit vehicle identification number to see if their cars are affected. If you're not the original owner of the vehicle, the manufacturer's recall letter might not reach you, so be sure to do the VIN check. The recalled RAV4s have Takata driver's airbags while the Corolla and Matrix models have them on the passenger side. The Corolla and Matrix also are under a separate recall because their airbags can be deployed without a crash, the company said. Both companies said owners should contact a local dealer instead of driving the cars in for repairs. Dealers will provide options such as mobile repair, towing the car to a dealer, or vehicle pickup and delivery. Takata used volatile ammonium nitrate to create a small explosion to inflate airbags in a crash. But the chemical propellant can deteriorate over time when exposed to high temperatures and humidity. It can explode with too much force, blowing apart a metal canister and spewing shrapnel. At least 26 people have been killed in the U.S. by Takata inflators since May 2009, and at least 30 have died worldwide including people in Malaysia and Australia. In addition, about 400 people have been injured. The exploding airbags sent Takata of Japan into bankruptcy. The potential for a dangerous malfunction led to the largest series of auto recalls in U.S. history. About 100 million inflators were recalled worldwide. Recalls Pontiac Toyota Takata airbag recall

Toyota Europe boss says 'reasonable number' of fuel cell vehicles on the way

We know that Toyota is gung-ho about delivering its first hydrogen fuel cell sedan to early-adopter markets like southern California and part of Japan next year. The Japanese automaker's European H2 plans have long been part of the mix, but a new press release shows just how committed Toyota is to hydrogen all around the world. "The volume will be limited, but they will be visible on the streets" – Didier Leroy Toyota says hydrogen fuel cells are a "major, but logical next step" after the company's pioneering work on gas-electric hybrids for 15 years. Didier Leroy, president of Toyota Motor Europe (pictured), said in a statement that he knows there will be H2 hurdles, and so Toyota will start with "a reasonable number of cars" in Europe. "The volume will be limited," he said, "but they will be visible on the streets." Karl Schlicht, Toyota Motor Europe executive vice president, compares Toyota's current hydrogen progress with where the company was with hybrid's in the not-too-distant past. When it comes to infrastructure and cost, he said, "There is of course a long way to go, as with any game-changing technology, but remember the same was said about hybrid only 10 years ago." You can read the full PR below. We don't remember a lot of people saying the infrastructure for hybrids simply wasn't there in 2004, but maybe we missed that memo. TOYOTA EXECUTIVES SET THE SCENE FOR DELIVERING FUEL CELL TECHNOLOGY 16/04/14 from Toyota The next era in Toyota's technology development is about to become production reality, with the market introduction next year of the company's first hydrogen fuel cell-powered car. It's a major, but logical next step for the company, as it builds on the success it has achieved with hybrid over the past 15 years. Karl Schlicht, Executive Vice President of Toyota Motor Europe, is explicit about Toyota's commitment to hydrogen power and the potential of fuel cell vehicles to deliver on the company's ambitions to develop the ultimate eco-car. He says: "Our unique hybrid history and experience have proven invaluable for the next big leap. Back in 2010, we promised our first fuel cell car for 2015 and we are fully on track to honour our commitment. "Fuel cell is a technology that can secure our concept of personal mobility. That's because fuel cells combine the strengths of EVs (electric vehicles) and hybrids, with those of conventional cars.