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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.

2015 Toyota Prius C is still colorful, still gets 53 mpg

Few vehicles can match the affordable fuel economy of the $19,000, 53-mile-per-gallon Toyota Prius C, and that fact isn't likely to change for 2015, as the Japanese company has issued a moderate refresh of its sub-compact hybrid.
As mid-cycle refreshes go, this is a pretty standard affair, with a larger grille and tweaked LED headlights at the front of the Prius C, and more expressive taillights at the back. Toyota made some minor changes in the cabin, updating materials throughout, but not fiddling too much with the overall level of equipment.
Aside from those modest changes, this is the same fuel-efficient five-door, retaining its 1.5-liter, 73-horsepower, 82-pound-foot four-cylinder, while an electric motor tosses in an extra 26 ponies, for a total system output of 99 horsepower. Along with the 53-mpg highway rating, the C will return 46 mpg in the city.

Toyota expanding Aichi's test EV infrastructure in Japan

OK, now we're really confused. In the US, Toyota has been telling anyone who cares to listen that the future of advanced-powertrain technology is hydrogen fuel-cell vehicles, not electric ones. In China, a Toyota joint venture is looking at EVs. Over in Japan? They've just decided to pony up a little more for testing electric-vehicle technology. Maybe something's lost in translation. Toyota has been running an electric-vehicle charging station trial project in Japan's Aichi Prefecture during the past couple of years and is now ready to expand that program, adding 43 new charging stations to the 104 already present. Many of the EVSEs are in municipal-owned properties or in mountainous areas (where EV batteries drain the fastest). Toyota's expanded program started running in Kariya City, Toyota City, Toyohashi City and Nagakute City this month, and testing will extend until the end of next March. There's more in Toyota's press release below. Toyota's electric-vehicle presence is limited here in the US, as the low-production RAV4 crossover is the only model sold here. Toyota executive Craig Scott was recently quoted as saying that the company questions whether there is sufficient demand in the US for pure electric vehicles. With that in mind, Toyota will debut its hydrogen fuel cell model in the US in 2015. Toyota to Test Expansion of EV and PHV Charging Infrastructure in Japan Toyota City, Japan, October 31, 2014-Toyota Motor Corporation announces that it will be testing electric vehicle charging infrastructure in Aichi Prefecture from November 1 until March 15, 2015. The tests will involve standard chargers for use with vehicles such as plug-in hybrid vehicles (PHVs) and electric vehicles (EVs). The tests will be conducted jointly with four municipalities (Kariya City, Toyota City, Toyohashi City, and Nagakute City) and two companies (Toyota Industries Corporation and UNY Co., Ltd.), all of which are located in Aichi Prefecture. Toyota conducted similar tests in FY2012 and FY20131. In addition to targeting commercial, tourist, and accommodation facilities as in past tests, this year's tests will also involve cultural and social service facilities (including some in hilly and mountainous areas). Multiple chargers will be installed at certain commercial facilities where charger use was heavy in last year's tests. The aim will be to ascertain the optimal number and location of charging stations and their ease of use.