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Investigators Find No Defect Trend With Tesla Motors' Model S

Federal safety investigators said Friday they have found no apparent defect trends in the Tesla Model S, an electric luxury car that has its share of fans and critics. The National Highway Traffic Safety Administration closed a four-month investigation into whether the car's batteries were at heightened risk for underbody strikes and subsequent fires. Even though no defect trend was found, Tesla Motors said in a written statement it would further protect the bottom of its cars with a reinforced underbody shield. The California-based automaker started adding the shields on March 6 and will retrofit older models free of charge. It will also increase the ground clearance of new cars. "This fix should eliminate the potential of a battery-pack fire under all but the most extreme circumstances," said Karl Brauer, a senior analyst at Kelley Blue Book. Although there are more than 194,000 car fires in the United States every year, NHTSA investigators began a preliminary investigation into potential trouble on Nov. 15, 2013 following two Model S fires, one in Tennessee and one in Washington. No one was injured or killed in either fire. Roadway debris punctured the battery pack near the front of the compartments in both cases, damaging the batteries' lithium ion cells that then began "thermal runaway" events. The opposite ends of the debris had dug into the pavement and jutted upward. Tesla called this a "piking effect." The company said it has conducted 152 vehicle level tests, and that the new shields prevented any damage or penetration of the new shields. The first is a rounded, hollow aluminum bar that's followed by a titanium plate. The third layer of protection is made of solid aluminum. (There's video of the new plates in action on the Tesla Motors website). "We have tried every worst-case debris impact we can think of, including hardened steel structures set in the ideal position for a piking event," Tesla Motors founder Elon Musk wrote on the company's blog," essentially equivalent to driving a car at highway speed, into a steel spear braced on the tarmac." Approximately 15,805 vehicles are eligible for the upgrades, which NHTSA says should reduce the frequency of underbody strikes and subsequent fire risks. But the agency did note that the closing of the investigation did not necessarily constitute a finding that a defect does not exist. "The agency reserves the right to take further action if warranted by new circumstances," it said.

Panasonic not sure about Tesla Gigafactory commitment; Texas dealers wary, too

Just about the entire US southwest is ready to jump into the financial bed with Tesla Motors as the electric-vehicle maker looks for a place to put its massive "gigafactory." But lithium-ion battery maker Panasonic? Not so much, says Bloomberg News. Panasonic President Kazuhiro Tsuga spoke to a group of reporters in Tokyo and said he strategically understood the need for Tesla to go large-scale with its factory production, especially as it prepares to debut an SUV as well as a model that will be priced at about half of what a Model S costs. But, he added cautiously, there will be significant risk involved in the investment and his company hasn't committed to its involvement just yet. Texas dealers are already sounding the alarm against changing franchise laws to woo the battery plant. Panasonic or not, Tesla is taking the "go big or go home" approach to a factory that it says will cost about $5 billion ($2 billion already committed from Tesla itself) and may support 6,500 jobs. That latter point has states such as Arizona, Nevada, New Mexico and Texas tripping over themselves to figure out the financial incentives necessary to be the further production base for California-based Tesla. Texas auto dealers are already sounding the alarm against changing the state's franchise laws to woo the automaker's battery plant. An open letter sent by the Texas Automobile Dealers Association says it does not believe, "that economic development efforts to bring any business to Texas should in any way be connected to changing established laws in Texas for the singular benefit of any one company. ... We believe this sets a bad precedent for future economic development efforts by linking them to special interest changes in law." Last fall, Tesla expanded its battery-production agreement with Panasonic, saying at the time that Panasonic would provide almost 2 million automotive-grade battery cells for the Model S and Model X during the next four years.

Tesla behind lobbying push to ditch side mirrors

The National Highway Traffic Safety Administration passed a law yesterday forcing new cars in the US to come with standard backup cameras by May 2018, and if Tesla has its way, this could be just the beginning of changing how motorists see out of their vehicles. The electric car manufacturer has teamed up with the 12-member Alliance of Automobile Manufacturers lobbying group (which represents major companies like General Motors, Toyota and Volkswagen) and filed a petition on Monday asking NHTSA for permission to replace sideview mirrors with cameras.
Currently, side mirrors are required on cars in the US, and they can't legally be replaced by camera technologies filling a similar role. The petitioners' chief argument is that sideview mirrors add drag and decrease fuel economy. According to Automotive News, Tesla founder Elon Musk has been lobbying for laws that allow automakers to use sideview camera systems exclusively for the last two years, but claims it's nearly impossible for a single person to change the regulations.
Sideview cameras have been on concept cars for decades, but augmenting external visibility with cameras and sensors has been a growing trend in production automotive technology over the last five years or so. Nissan uses its Around View Monitor to supplement mirrors with a bird's eye composite view of the vehicle during tight maneuvers, and the LaneWatch system from Honda displays a rear-facing passenger-side view to eliminate blind spots during lane changes. Tesla's early Model X concept (pictured above) had small pods on the side with cameras mounted in them, but more recent versions have switched to conventional mirrors.