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Why it's difficult to accurately test the efficiency of a plug-in car

When it comes to electric vehicles and plug-ins in general, the Environmental Protection Agency-certified range is a hugely important number. While actual range anxiety is largely psychological, the magic number does provide a point of comparison of buyers considering one EV over another. The driving distance is also often touted by automakers when marketing their models. Unfortunately, as Green Car Reports finds in a recent deep dive, the way the EPA calculates the figure is a convoluted mess, and discovering the reasons why is definitely worth the read. The issue isn't about bad science but instead comes down to vague wording. The EPA's accepted range test is sourced from an evaluation called J-1634 from the Society of Automotive Engineers, and it seems to provide balanced results for vehicles that automatically reach a single state of charge when plugged in. However for models with multiple charge settings, the situation gets complicated very quickly. Of course, these modes are often created in the software, meaning that a car's certified driving distance can change with just a few taps of the keyboard without the real world results owners might experience actually changing. By showing the test's effects on the certified range for the Tesla Model S, Nissan Leaf and Mercedes-Benz B-Class Electric Drive over the last few years, Green Car Reports makes a compelling argument that it's the evaluation that needs to change. Thankfully, it appears that the solution is a very simple one. Get the details here.

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.

Recharge Wrap-up: Toyota battery breakthrough, PSA's millionth BlueHDi diesel

Scientists at Toyota have developed battery technology that allows for higher energy density. Using material from hydrogen storage, researchers at the Toyota Research Institute of North America (TRINA) in beautiful Ann Arbor, Michigan have created an electrolyte that works well with a magnesium metal anode. Besides improving energy density for smaller, more powerful batteries, magnesium is also more stable than lithium, making it a safer alternative. Rather than guarding their secret, Toyota is sharing details of this breakthrough in order to advance the technology in hopes of an earlier mass deployment of magnesium batteries. See the video above, and read more in the press release below. Farmdrop – a sort of online farmer's market in the UK – is looking for help naming its electric delivery "vanimals." The Nissan e-NV200 vans are painted and decorated to look like cows, pigs, and chickens. While three of the vans have already been named, fans can suggest their own clever ideas for the rest of the fleet on social media. Those whose names are selected will win a month's worth of shopping on Farmdrop. Cary McCarface, anyone? Read more at the company's website. PSA has built its millionth Euro 6 BlueHDi diesel engine. The automaker builds two diesel engines – a 1.6-liter and a 2.0-liter – at its plant in Tremery, France at a rate of 7,000 engines a day. BlueHDi technology uses three different emissions control mechanisms to filter pollutants out of diesel exhaust, including an oxygen catalyst, an additive filter to remove particulate matter, and a Selective Catalytic Reduction system to reduce NOx. BlueHDi is used in all new Peugeot, Citroen, and DS Euro 6 diesel vehicles. Read more at Green Car Congress. Charging Ahead Toyota Scientists Make Breakthrough on Safer, Smarter Batteries May 04, 2016 ANN ARBOR, Mich. (May 4, 2016) -- For anyone (i.e. everyone) who's ever panicked when their mobile device chirped, "low battery," the future could be far less stressful, thanks to the advanced battery research of scientists at the Toyota Research Institute of North America (TRINA). A new breakthrough involving magnesium batteries may soon open the doors for smaller, longer-lasting batteries for everything from cars to cell phones. What's the Big Deal with Magnesium? Magnesium metal has long been theorized as a much safer and more energy-dense alternative to current lithium battery technology.