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NHTSA opens investigation into 130k Nissan Versas for breaking springs

The National Highway Traffic Safety Administration has opened a preliminary evaluation into a suspension problem that could affect an estimated 130,000 Nissan Versas from 2008-2010. According to the government agency's documentation (here as a PDF), there have been 93 complaints of the front coil springs fracturing while driving in these vehicles. Based on reports so far, it appears to NHTSA that this problem can happen at any speed and without warning. When the spring breaks, the pieces can also puncture a tire or brake line. A preliminary evaluation sets out to investigate "the scope, frequency and safety-related consequence" of the potential problem. According to a portion of a statement from the automaker to Autoblog, "Nissan is cooperating fully to answer the agency's questions regarding this issue in a timely manner." INVESTIGATION Subject : Front Coil Spring Fracture Date Investigation Opened: MAY 13, 2015 Date Investigation Closed: Open NHTSA Action Number: PE15019 Component(s): SUSPENSION All Products Associated with this Investigation Vehicle Make Model Model Year(s) NISSAN VERSA 2008-2010 Details Manufacturer: Nissan North America, Inc. SUMMARY: The Office of Defects Investigation (ODI) has received 93 complaints (VOQs) alleging incidents of front suspension coil spring fracture in model year (MY) 2008 through 2010 Nissan Versa passenger cars. Preliminary analysis of the complaints indicates that the coil spring failures occur without warning and can happen at any speed. One complaint (VOQ #10663102) reported the passenger-side coil spring fractured while traveling at 65 mph and caused a sudden tire failure by cutting the inner sidewall 360 degrees. Another complaint ( VOQ #10680740) reported the passenger-side coil spring fractured while traveling 40 mph and result in tire puncture and brake line failure. ODI has also received EWR field report information relating to coil spring failures in the subject vehicles. A Preliminary Evaluation has been opened to assess the scope, frequency and safety-related consequence of the alleged defect.

Nissan names Makoto Uchida as next CEO

TOKYO — Nissan named Makoto Uchida, the head of its Chinese business, as its next CEO, picking an executive known for close ties to top shareholder Renault and for a frank, straight-talking manner that has marked him as an outsider. By selecting Senior Vice President Uchida, Nissan's board has gone with someone slightly at odds with its traditional corporate culture. He joined the carmaker mid-career in 2003, a rarity in a country where top executives usually spend their entire working lives at the same company. Known for his unflagging work ethic and relentless focus on cost control, Uchida was described by one long-time associate who spoke on condition of anonymity as a "foreigner with a Japanese face" — direct and to the point in conversations. He will be joined by newly appointed Chief Operating Officer (COO) Ashwani Gupta, currently COO of junior partner Mitsubishi Motors, in trying to find new ways to revive a business that has been struggling for months with plunging profits, management scandal and tensions with Renault. Japan's second-largest automaker has been shaken in particular by the arrest of former Chairman Carlos Ghosn last year on allegations of financial misconduct, which he denies, and the more recent departure of CEO Hiroto Saikawa after he admitted to being improperly overpaid. Whether the 58-year-old former theology student can deliver a miracle turnaround — particularly at Nissan's business in the United States — and repair ties with Renault will now be a focus for investors. "The biggest business challenge for Nissan is speeding up," the head of Nissan's nominations committee, Masakazu Toyoda, told a news conference. "Speedy decision making is a challenge that Uchida raised, and to this end he said that he wants to empower people as much as possible, so we decided to ask Uchida to take on the CEO role." One source close to Renault described the selection as "a victory for the alliance", saying that both Uchida and Gupta knew the business and were ready to help Nissan recover. 'ISN'T REALLY JAPANESE' Before his ouster, Ghosn had been working on a plan for a full merger of Renault and Nissan, but had met resistance in Japan, which is concerned about French influence in the alliance. The French government is a major Renault shareholder. Relations were further strained this year when Renault held abortive merger talks with Fiat Chrysler Automobiles.

Basic Continuously Variable Transmission explained with Legos

In recent years, the search for better fuel efficiency and smoother shifting has produced automatic transmissions with double-digit gears. Alternatively, the same quest has boosted the popularity and usage of a different type of automatic transmission without any fixed gears, the continuously variable transmission, or CVT. YouTuber Sariel's Lego Workshop recently took the time to build a CVT demonstration model out of Legos to help explain how they work. Sariel begins by showing the model's input and output shafts that are parallel to each other. Each shaft has a cone attached to it, and they are inversely placed so that the large part of one cone is next to the small part of the other cone. The two cones are connected using a rounded rubber band.  By shifting the rubber band up and down the cones, the machine changes the effective ratio between the cones. So, a 1:4 ratio can be smoothly transitioned to 4:1. No clutch is required to operate the mechanism, and it eliminates hitches or pauses between gear changes. CVTs are also advantageous over 9- or 10-speed automatics in that they are far less complex and weigh less.  To demonstrate how the CVT operates in a vehicle, Sariel used a joke about Top Gear. The original Top Gear is represented by a faster-moving car that has the rubber band around the large part of the cone on the input shaft. Top Gear without former hosts Richard Hammond, Jeremy Clarkson, and James May is represented by a slow-moving car with the rubber band around the large part of the cone on the output shaft.  For an even more detailed explanation of how CVTs work — albeit one that doesn't involve toys — you can click here. Technology Toys/Games Nissan Subaru