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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.

Elon Musk's Hyperloop idea still in motion

After teasing the concept in 2012, Tesla CEO Elon Musk released some thoughts on a high-speed transportation project called the Hyperloop in 2013. He then promptly renounced any claim on the idea and said he would not actually build the open source project. The hyperloop didn't die, though, and is still attracting new brainpower. Hyperloop Transportation Technologies was officially formed with a JumpStartFund late last year, a few months after Musk made the concept public. The company has since grown into a collective of about 100 engineers who have full-time gigs with companies such as Boeing, Airbus, NASA and, of course, Musk's own SpaceX, Wired says. Some students at UCLA are taking part in the design process, which is detailed in a new "crowdstorm" document. The idea behind the Hyperloop is to build above-ground tubes where passenger capsules devoid of friction (with the help of either air compression or magnetic levitation) can travel up to 800 miles per hour between cities such as Los Angeles and San Francisco. The HTT collective is already talking about having economy- and business-class capsules. The good news is that the group says the early predictions for Hyperloop remain realistic. That means a timeframe of about a decade to complete the first system with a price tag of between $6 billion and $10 billion is still on the table. For now, at least. Hyperloop Transportation Technologies, Inc. Announces New Designs, Crowdstorming Document and Core Team EL SEGUNDO, Calif., Dec. 19, 2014 /PRNewswire/ -- Hyperloop Transportation Technologies, Inc. powered by JumpStartFund announced today the crossing of major milestones, bringing the company closer to the goal of creating a working high speed mass transit system. These milestones include the finalization of the company's 100 core team members and the publishing of a new crowdstorm document. Recently acquiring its 100 core team members, Hyperloop Transportation Technologies is powered by the unique collaboration platform JumpStartFund. These 100 members are professionals, engineers and designers from some of the most esteemed organizations on the planet, including Boeing, Airbus, NASA, Harvard, UCLA, Stanford, and others, collaborating globally in the U.S., Asia, Australia and Europe. The company released a new crowdstorm document expanding on concepts and sharing the most recent developments produced by the company. Highlights from the paper include a detailed cost, route and safety analyses.

Recharge Wrap-up: Renovo Coupe at CES, Aussies tour US in Tesla Model S

Australians review the Tesla Model S in a Seattle to LA road trip video. The folks from CarAdvice drive the P85+ along the West Coast of the US, testing out the car, trying the Superchargers, stopping by some notable sites along the way and even making use of roadside assistance. While the video shows what it's like to take the Tesla on a US road trip, it gives viewers Down Under a glimpse of their own future. Tesla just began sales in a country that, while on the other side of the globe, also features long distances between cities and a new Supercharger network. Check out the video below or read more at Inside EVs. A UK taxi company is introducing the Nissan e-NV200 to its fleet. C&C Taxi, which has been using six Nissan Leafs in its Cornwall taxi service since early December, has added the passenger-ready e-NV200 Combi to its stable of cabs. Mark Richards, manager of C&C's fleet, is happy with its performance and money saved after over 1,000 miles of service so far, and plans to replace the rest of the diesel fleet with EVs. The Nissan e-NV200 Combi "does everything the Leaf does but is much bigger and offers more space," says Richards. "We'll definitely be ordering more." Learn more in the video below or read more at Hybrid Cars. Learn more about Nissan's fleet EVs at the company's website. The US Department of Energy has released a new report on EV charging behavior and its impact on the grid. The report, which covers grant projects from six different utilities, includes data from over 270 public chargers and 700 residential charging units. Most at-home charging took place at night during off-peak hours. There were some reports of problems with chargers and smart meters working together. Most public charging took place during peak hours, but was low compared to home charging. This means a longer cost recovery period due to the high cost of installation. See the report at the DOE website or read more at Green Car Congress. The Renovo Coupe will be on display at the NVIDIA booth at the 2015 Consumer Electronics Show (CES) for its first public viewing. Renovo Motors CEO Christopher Heiser says, "These are very exciting times for Renovo and we think our new technology, coupled with NVIDIA's breakthroughs in automotive applications, has the potential to make a tremendous impact across the entire automotive industry." The Shelby Daytona-bodied Renovo offers 500 horsepower and 1,000 pound-feet of torque from two electric motors.