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DC fast charging not as damaging to EV batteries as expected

As convenient as DC fast charging is, there have been lots of warnings that repeated dumping of so many electrons into an electric vehicle's battery pack in such a short time would reduce the battery's life. While everyone agrees that DC fast charging does have some effect on battery life, it may not be as bad as previously expected. Over on SimanaitisSays, Dennis Simanaitis, writes about a recent presentation by Matt Shirk of the Idaho National Laboratory (INL) called DC Fast, Wireless, And Conductive Charging Evaluation Projects (PDF) that describes an ongoing test of four 2012 Nissan Leaf EVs that are being charged in two pairs of two. One pair only recharges from 50-kW DC fast chargers, which the other two sip from 3.3-kW Level 2 chargers exclusively. Otherwise, the cars are operated pretty much the same: climate is automatically set to 72 degrees, are driven on public roads around Phoenix, AZ and have the same set of dedicated drivers is rotated through the four cars. "Degradation depends more on the miles traveled than on the nature of recharging." What's most interesting are the charts on page seven of Shirk's presentation (click the image above to enlarge), which show the energy capacity of each of the four vehicles. When they were new, the four batteries were each tested to measure their energy capacity and given a 0 capacity loss baseline. They were then tested at 10,000, 20,000, 30,000 and 40,000 miles, and at each point, the DC-only EVs had roughly the same amount of battery loss as the Level 2 test subjects. The DC cars did lose a bit more at each test, but only around a 25-percent overall loss after 40k, compared to 23 percent for the Level 2 cars. Simanaitis' takeaway is that, "INL data suggest that the amount of degradation depends more on the miles traveled than on the nature of recharging." The tests are part of the INLs' Advanced Vehicle Testing Activity work and a final report is forthcoming. These initial numbers from IPL do mesh with other research into DC fast charging, though. Mitsubishi said daily fast charging wouldn't really hurt the battery in the i-MiEV and MIT tests of a Fisker Karma battery showed just 10-percent loss over 1,500 rapid charge-discharge cycles.

NYC Taxi of Tomorrow ruled legal by appeals court

The streets of New York City might be filling up with a lot more Nissans in the next few years. A New York appeals court ruled that the city's mandate to replace old taxis with a fleet entirely made up of the Nissan NV200 Taxi of Tomorrow was legal. The decision overturned a previous ruling that decided The Big Apple couldn't force cabbies to all purchase the same vehicle.
Justice David B. Saxe wrote the court's opinion saying the Taxi of Tomorrow is a "legally appropriate response to the agency's statutory obligation to produce a 21st-century taxicab consistent with the broad interests and perspectives that the agency is charged with protecting," according to Bloomberg. The Greater New York Taxi Association, the plaintiff in the case, could still possibly attempt a second appeal.
Nissan originally won the 10-year contract estimated to be worth about $1 billion in 2011, beating out Ford and a Turkish company. Under the Taxi of Tomorrow plan, all New York cabbies would have to switch to the NV200 within three of five years of the van going into service, and it would replace the 16 vehicles previously authorized as taxis. In 2013, the mandate received multiple challenges though, including an attempted ban by cab drivers because the replacement wasn't a hybrid. In a separate case, state Supreme Court judge Schlomo Hagler decided that there was nothing in the city charter that forced a taxi driver to choose a specific vehicle. This was the case that was just overturned. In the meantime, the automaker has been selling the NV200 to New York cabbies at prices around $29,700.

Teen attempts car jump, hits windshield and lands on his feet

I've been compelled to do many things in or around a car, but jumping over one has never quite made the cut. That may be because I have all of the vertical lift of a manatee, but I digress. One enterprising young soul recently looked at a friend's Nissan Sentra and thought, "You know, I can totally leap right over that roof line."
By using what can only be described as Herculean feats of persuasion, he talked one young female friend into driving said Nissan straight for him at around 40 miles per hour while another stood by to film the lunacy. The plan went swimmingly right up until our would be compact-vaulter caught his foot on the hood and bounced into the windshield. Whoops.
But the story doesn't end with a trip to the emergency room. Our hero spun mid-air and actually managed to get his feet under him before coming back to Earth. Impressive. You can watch the hilarity for yourself below, but please, don't even think about trying this yourself.