2008 Nissan Versa Sl Hatchback 4-door 1.8l on 2040-cars

Auto blog

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 heading to Le Mans with 1,250-hp GT-R LM Nismo [w/videos]

Endurance racing faced a pivotal year in 2012. The FIA and the ACO had just come together to form the new World Endurance Championship when Peugeot announced it was shuttering its team, leaving only one manufacturer to contest the top LMP1 class of the nascent series. Fortunately Toyota was able to advance its program to join Audi in the WEC and at the 24 Hours of Le Mans. Two seasons later Porsche joined the fight, and now Nissan has formally announced its return to Le Mans as well. Revealed in Nissan's With Dad spot during the Super Bowl, the Japanese automaker is set to join the grid with the innovative GT-R LM Nismo you see here. It's a hybrid just like the challengers from Audi, Porsche and Toyota, but instead of a mid-engine/rear-drive setup, Nissan's oddball challenger places its engine in the front, driving the front wheels. The 3.0-liter twin-turbocharged V6 is mated to a five-speed sequential gearbox and produces upwards of 550 horsepower on its own, but is mated to an electric Energy Recovery System that kicks in over 700 additional horses for a combined hybrid output exceeding 1,250 hp. That could make Nissan's the most powerful LMP1 on the grid, while still complying with the fuel flow limits outlined in the rulebook that gives participating constructors the latitude to toy with different configurations. Both powertrain components are mounted under the long nose of the oddly styled prototype, behind the canopy of the rearward cockpit that may give it a similar profile to the DeltaWing prototype and subsequent ZEOD RC. But the unconventional GT-R LM Nismo is also innovative in its own way. The front-drive configuration means that the Nissan prototype actually has wider tires up front than in the back, and also allowed for a drastically different approach to aerodynamics. Instead of testing it out at a handful of events in its first season, with the GT-R LM, Nissan will contest the full 2015 FIA World Endurance Championship, starting with the 6 Hours of Silverstone in April and including the 24 Hours of Le Mans in June.

Game on as Formula One fields teams for virtual eSports competition

HORLEY, England — Grand prix teams could be racing each other in the virtual world as well as the real one next season, and fighting to sign up the hottest gamer talent, as Formula One wakes to the power of eSports. Darren Cox, the man behind McLaren's "World's Fastest Gamer" competition who also saw one of his drivers win Formula One's first eSports series in Abu Dhabi last month, feels a tipping point has been reached this year. The former Nissan motorsport boss, who runs the eSPORTS+CARS virtual team, can also see the day dawning — in maybe three to five years' time — when top gamers are earning more than the lowest paid drivers on the real F1 starting grid. In a wide-ranging interview at a simulator center where his drivers train near London's Gatwick airport, Cox told Reuters that he expected Formula One teams to become involved in next year's eSports series. "If you look at what the NBA (basketball) has done ... they engaged the teams right at the beginning. So 17 of the NBA teams have got franchises for the virtual side of the sport, and there's a draft like in the real world. "So expect something like that to come out of (Formula One owners) Liberty," added Cox. "It's happening now. Those conversations are being had. "This absolutely will be a big priority for them (Liberty), and I believe they have made it clear to the teams that they will be involved, in some way. "And then I guess it's down to the teams about how involved they want to be." Kitchen porter turns champion Formula One's first eSports series was won by Brendon Leigh, an 18-year-old kitchen porter who had never previously been out of Britain. Leigh, who drives for Cox's team and emerged triumphant from 63,000 initial hopefuls, is likely to go professional. Some gamers in other arenas are already earning more than $1 million a year, and Cox said the rewards in motorsport were growing all the time. "If you go back 18 months, these guys were winning an X-box and a free subscription, not any cash. The cash has suddenly come, and I think that will ramp up," said the man who has been dubbed the "Godfather of virtual racing." Cox dismissed as irrelevant the debate about whether eSport is a sport. "It's here, it's got millions of viewers, it's got a commercial backbone that is strong. It doesn't matter if someone in sport thinks it's a sport or not. eSports don't care." He expected all the big F1 teams to end up partnering with outfits like his.