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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.

Nissan recalling 151,000 CUVs over ABS issues

Nissan will be recalling over 151,000 vehicles due to issues with the anti-lock braking systems. On rough roads, light braking in the Nissan Pathfinder, Infiniti JX35 and QX60 could trigger a problem in the brake pressure output software that might lead to longer stopping distances than expected relative to the brake inputs. Needless to say, unpredictable stopping distances on rough roads is not a desirable trait in a three-row, family friendly CUV.
The recall covers all 2013 and 2014 Nissan Pathfinders built between April 18, 2012 and September 20, 2013, some 100,682 vehicles. Another 52,629 2013 to 2014 Infiniti JX35/QX60s built between September 15, 2011 and September 20, 2013 are also part of the notice.
Nissan will request that owners of affected vehicles report to dealers for a free software update to address the problem. Scroll down for the official notification from the National Highway Traffic Safety Administration.

Nissan working on bringing bizarro BladeGlider to dealerships?

It's a rare thing for pie-in-the-sky concepts to make production relatively unmolested. Edges are usually softened, mirrors made bigger and wheels shrunken into something that will be less backbreaking and easier to see out of on public roads. And while the essence of many concepts can still find their way into production, the wackier parts found in their concept forms often end up as nothing more than flights of fancy.
That makes news of the strange Nissan BladeGlider being considered for production rather interesting. You'll recall that the BladeGlider Concept debuted in November at the 2013 Tokyo Motor Show, featuring a McLaren-esque three-seat V layout, an electric drivetrain and a narrow front track like the DeltaWing and ZEOD RC. Understandably, perhaps, Nissan has been touting it as "reinventing the performance car." Everything about it screamed "concept."
Now comes word from Car in the UK that the car may actually make it to production. Quoting Nissan vice president Andy Palmer, "It's in our mid-term plan." "Our intention is to do it," he says. Now, Palmer has plenty of sway, but this should hardly be taken as an absolute confirmation that the triangle-shaped car would be coming. It is, however, a very promising sign. Palmer evidently sees the BladeGlider as a way to cajole young people into becoming car enthusiasts, which suggests Nissan might try to make it inexpensive. Alternatively, the BladeGlider could form the basis of a small-volume racecar, but it isn't clear what racing organization would have it.