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Nissan pokes fun at Tesla's New Jersey woes, then deletes Tweet

Ever have one of those moments when you release something out onto Twitter, only to think better of it a little while later and reach for that garbage can icon? If so, you are not alone. In fact, you're in the company of a certain Japanese automaker, who recently joined the ranks of those who've suffered an embarrassing bout of tweetus deletus. The Nissan Leaf social media team apparently thought it would be amusing to take a light poke at Tesla Motors and its New Jersey dealer fight woes on its Twitter feed and put together the cheeky graphic which you see above. It was originally published on the micro-blogging network accompanied by the text, "It's okay #NewJersey, you can still #GoElectric with the #NissanLEAF #EV." Funny, right? Not to everyone. The image attracted a bit of mild criticism which, to their credit, Nissan responded to saying, "It's all in #EV love." Soon, however, the original image disappeared from the @NissanLEAF feed. Luckily, we saved a copy for your edification. Rob Robinson, senior specialist of social communications for Nissan, told AutoblogGreen that the Leaf Twitter account is run by an agency, and that the tweet in question, "Was not a tweet that was reviewed or approved by Nissan. We saw it and asked them to take it down." As for the reasoning, Robinson said that, "We thought it was a discussion we didn't need to be weighing in on." While we can see the Nissan point of view, we also appreciate the attempt at being irreverent. Anything to break up the monotony of the stale toast the account usually offers up – "What would you nickname your Nissan Leaf if it was Ocean Blue?" which is the last undeleted Tweet available on the feed, as of this writing. We actually applaud the intention of the Tesla post. It all makes us wonder, though, if the social media team over there isn't in need of a little input on how they might improve its outreach. Since we know our readers are not shy in offering suggestions, we ask you to leave your thoughts and ideas for them in the Comments.

Recharge Wrap-up: Renault-Nissan at COP21, fast charging viability

Nissan and Renault's combined fleet of 200 EVs drove over 175,000 kilometers (about 108,700 miles) during the COP21 environmental summit in Paris. The largest fleet of EVs for any international conference served as shuttles for attendees, saving almost 182 barrels of oil and 18 tons of CO2 emissions. In addition to providing the Nissan Leaf, Nissan e-NV200, and Renault Zoe EV shuttles, the Renault-Nissan Alliance also set up a network of 90 chargers to support the fleet. 13 of the 27 quick and semi-quick chargers will remain in place for public use. Read more in the press release below.Siemens names Ann Arbor, Michigan for its first Center of Excellence for Intelligent Traffic Technology. The company will implement new and upgrade existing traffic technologies in the city, including cloud-based traffic management software, local controller software and an adaptive traffic control system designed to improve traffic flow and safety. In a college town with highly varying numbers of students and visitors throughout the year, "the need to move traffic in and out of the city efficiently is crucial not only for economic and environmental impacts, but for quality of life for Ann Arbor residents," says Marcus Welz, president of Siemens Intelligent Traffic Systems. Many Ann Arborites (your author included) would surely agree. Read more at Green Car Congress, or in the release from Siemens.A study in Ireland found that public fast charging could soon become commercially viable. The researchers found parking spots to be the most popular public charging locations, and that fast chargers saw the most frequent use, suggesting commercial viability for the infrastructure in the short- to medium-term. The study also found that most drivers prefer to charge at home, and do so during peak hours. Incentivization could be necessary to break people from this habit. Read more at Green Car Congress.

Is the skill of rev matching being lost to computers?

If the ability to drive a vehicle equipped with a manual gearbox is becoming a lost art, then the skill of being able to match revs on downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. The usefulness of rev matching in street driving is limited most of the time – aside from sounding cool and impressing your friends. But out on a race track or the occasional fast, windy road, its benefits are abundantly clear. While in motion, the engine speed and wheel speed of a vehicle with a manual transmission are kept in sync when the clutch is engaged (i.e. when the clutch pedal is not being pressed down). However, when changing gear, that mechanical link is severed briefly, and the synchronization between the motor and wheels is broken. When upshifting during acceleration, this isn't much of an issue, as there's typically not a huge disparity between engine speed and wheel speed as a car accelerates. Rev-matching downshifts is the stuff they would teach at the automotive equivalent of the Shaolin Temple. But when slowing down and downshifting – as you might do when approaching a corner at a high rate of speed – that gap of time caused by the disengagement of the clutch from the engine causes the revs to drop. Without bringing up the revs somehow to help the engine speed match the wheel speed in the gear you're about to use, you'll typically get a sudden jolt when re-engaging the clutch as physics brings everything back into sync. That jolt can be a big problem when you're moving along swiftly, causing instability or even a loss of traction, particularly in rear-wheel-drive cars. So the point of rev matching is to blip the throttle simultaneously as you downshift gears in order to bring the engine speed to a closer match with the wheel speed before you re-engage the clutch in that lower gear, in turn providing a much smoother downshift. When braking is thrown in, you get heel-toe downshifting, which involves some dexterity to use all three pedals at the same time with just two feet – clutch in, slow the car while revving, clutch out. However, even if you're aware of heel-toe technique and the basic elements of how to perform a rev match, perfecting it to the point of making it useful can be difficult.