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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 and Lexus recall models for inadvertent airbag deployment

The Basics: Toyota will recall 320,000 examples in the US of the 2003-2006 Land Cruiser, 2004-2006 4Runner, 2005-2006 Tundra and Sequoia, 2003-2006 Lexus LX470, and 2004-2006 GX470. The Problem: The curtain shield airbags that come down from the roof can inadvertently deploy shortly after vehicle startup. This is due to improper programming of the airbag control module. Injuries/Deaths: "Toyota is not aware of any crashes caused by the condition. We have received reports alleging injuries such as abrasions and ringing in ears," company spokesperson Cindy Knight told Autoblog. The Fix: Toyota and Lexus dealers will replace the airbag control module with a new part, which will have improved programming. If You Own One: Toyota and Lexus will notify affected owners by mail early this month. Related Video: Toyota and Lexus Recall Certain Land Cruiser, 4Runner, Tundra, Sequoia, LX, and GX Vehicles February 02, 2016 TORRANCE, Calif., February 2, 2016 – Toyota Motor Sales, U.S.A., Inc. today announced that it is conducting a safety recall of approximately 320,000 Model Year 2003-2006 Land Cruiser; 2004-2006 4Runner; 2005-2006 Tundra and Sequoia; 2003-2006 LX 470; and 2004-2006 GX 470 vehicles. The involved vehicles are equipped with side Curtain-Shield-Airbags (CSAs) which deploy from the roof in the event of certain types of crashes. Due to improper programming in the airbag control modules, there is a possibility that, under certain specific and limited conditions shortly after startup, the CSAs and seat belt pretensioners could activate when not necessary. Unexpected activation of the CSAs could increase the risk of injury to the occupant. All known owners of the involved vehicles will be notified by first class mail. Toyota and Lexus dealers will replace the airbag control module with one which has an improved programming at no cost to owners. Information about automotive recalls, including but not limited to the list of involved vehicles, is subject to change over time. For the most up-to-date Safety Recall information on Lexus, Toyota and Scion customers should check their vehicle's status by visiting http://www.toyota.com/recall and entering the Vehicle Identification Number (VIN). Safety Recall inquiry by individual VIN is also available at the NHTSA site: safercar.gov/vin. For any additional questions, customer support is also available by calling Toyota Customer Service at 1-800-331-4331 or Lexus Customer Service at 1-800-255-3987.

Local production could improve Toyota Prius' fortunes in China

The Toyota Prius is the world's most popular hybrid vehicle, but it may take domestic production capabilities for the model to achieve a high level of popularity in China. Japan-based Toyota is aiming to produce an increasing percentage of Prius components in China in order to bring down its price there, Bloomberg News reports. Eventually, the goal is to make all Priuses sold in China in that country in order to avoid the steep 25-percent import tariff. As it is, Toyota sold just 1,400 Prius vehicles in China last year, compared to about 234,000 in the US and 315,000 worldwide. Hindering sales is the fact that the Prius costs about as much as an entry-level Audi in China, where Volkswagen is the country's best-selling automaker. Toyota has been selling the Prius in China for almost a decade but may soon find local sources for the batteries and other hybrid parts for the Prius and Camry Hybrid, Bloomberg says, citing comment from Hiroji Onishi, Toyota's China chief, at the Beijing Auto Show. Part of the problem is that the Chinese government provides less than $500 worth of subsidies for each hybrid sold, compared to about $9,600 for an electric vehicle. While that subsidy may rise as China municipalities take on the country's growing pollution problems, there's lingering concern over spurring sales of a car that's made by competing Japan. Toyota starting making some of its Prius vehicles in China in 2005 but halted production on the second-generation version of the hybrid four years later.