2020 Toyota 4runner Limited on 2040-cars

Auto blog

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 recalls 690,000 Tacoma trucks for rusty leaf springs, fire risk

Toyota has announced that it will be issuing a recall of 690,000 Tacoma pickups from model years 2005 through 2011. The affected vehicles include both the four-wheel-drive model and the two-wheel-drive PreRunner (but not the standard 4x2 pickups), which may have a rather serious problem with their rear suspensions.
In some cases, corrosion and stress could cause one of the three or four leaves in the rear suspension's leaf springs to fracture. While the trucks can still be driven with a broken leaf, Toyota is concerned that it could move out of position and impact other components in the rear of the truck, with a particular focus on the fuel tank. Needless to say, but a piece of metal continuously impacting anything, let alone the fuel tank, is cause for concern.
As of this writing, there have been no reports of crashes, injuries, fires or deaths due to this problem, although that won't stop Toyota from informing all affected customers of the issue. Those 690,000 owners will need to report in to dealers for inspections and, if necessary, repairs.

VW was 2018's top-selling automaker — but

TOKYO — Volkswagen Group has held on to its position as the world's top-selling automaker for the fifth year in a row, although the German group was edged out again by the Renault-Nissan-Mitsubishi alliance in the light-duty vehicles segment. Renault SA, Nissan Motor Co Ltd and Mitsubishi Motors Corp together sold 10.76 million passenger cars and light commercial vehicles in 2018, according to Reuters' calculations after new data released on Wednesday. The group doesn't sell heavy trucks. Nissan said on Wednesday it sold 5.65 million vehicles last year, down 2.8 percent on the year. Mitsubishi reported an 18 percent rise in sales to 1.22 million units while Renault sold 3.88 million units, up 3.2 percent on the year. Volkswagen's deliveries rose 0.9 percent to a record 10.83 million last year, including its MAN and Scania heavy trucks, the German company said earlier this month. Excluding heavy trucks, it sold 10.6 million units. Toyota Motor Corp retained its third spot, announcing on Wednesday that it had sold 10.59 million vehicles last year including its Toyota and Lexus brands, along with minicars made by subsidiary Daihatsu and light and heavy trucks produced by its truck division Hino Motors Ltd. Excluding Hino trucks, Toyota sold 10.39 million units last year. The automaker has said it expects to sell a total of 10.76 million vehicles in 2019. Many automakers are trying to boost sales volumes to achieve economies of scale and reduce costs amid soaring investments needed to develop next-generation technologies, including self-driving cars and electric vehicles. This has been a focus of the Renault-Nissan-Mitsubishi Motors group, which is looking to share more vehicle parts and consolidate production platforms to trim R&D and manufacturing costs, while raising profitability. The alliance, which brought Mitsubishi Motors into its fold in 2016, is currently in crisis with its former Chairman Carlos Ghosn arrested and indicted on charges of misconduct. Nissan has also been indicted, and Renault appointed new top management last week. Related Video: Earnings/Financials Mitsubishi Nissan Toyota Volkswagen