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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.

Trucks, SUVs — and Camry — shine in mixed U.S. January vehicle sales

DETROIT — Automakers posted mixed U.S. new vehicle sales data for January, with American consumers continuing to abandon passenger cars for the larger pickup trucks, SUVs and crossover models that manufacturers also love because they are far more profitable. Total industry auto sales for the month rose 1 percent versus January 2016. According to Autodata Corp, which tracks industry sales, the seasonally adjusted annualized rate (SAAR) of U.S. car and light truck sales in January fell to 17.12 million units from 17.44 million a year earlier. Analysts polled by Reuters had expected a January SAAR of 17.2 million units. U.S. auto industry sales fell 2 percent in 2017 to 17.23 million vehicles after hitting a record high in 2016 and are expected to drop further in 2018 despite a solid economy. Interest rates are rising and around 4 million late-model used cars will return to dealer lots this year to compete with more expensive new ones. Automakers have used consumer discounts to boost sales, a growing concern for observers who say this undermines resale values and profits. Discounts declined in January, but remained above 10 percent of manufacturers' recommended prices. ""I think the industry has accepted that (sales) volumes will fall somewhat in 2018 ... and I don't think the industry is going to go over the cliff with insane incentives," Mike Jackson, chief executive officer of AutoNation Inc, told Reuters after his company, the largest U.S. auto retail chain, posted a higher quarterly net profit. Mark Wakefield, head of the North American automotive practice for consultancy AlixPartners, had a gloomier perspective. The industry's less-than-stellar sales performance for January showed "we are now past the peak," he said. "Automakers are now selling the deal instead of the vehicle," he said. "That's a tough spot to be in because that treadmill is hard to get off once you're on it." General Motors January sales rose 1.3 percent, driven by a 16 percent rise in fleet sales. Sales to consumers fell 2.4 percent. GM posted strong gains for models such as the Silverado pickup truck and Equinox crossover model, while its passenger cars continued to struggle. Ford The Blue Oval posted a 6.6 percent sales decline for January, with retail sales down 4.3 percent. Sales of Ford's F-Series pickup trucks - America's best-selling vehicle brand for decades — rose 1.6 percent. Passenger cars were down more than 23 percent.

Nissan Sport Sedan Concept foretells a future Maxima

Nissan is in the midst of overhauling its design language. We got our first glimpse at the direction its style was going a year ago with the Resonance crossover concept, which was followed in Shanghai by the connected-car Friend-Me hatchback concept. And now, after dropping a few hints, Nissan has revealed the third in this developing series.
Unveiled at today's Detroit Auto Show, the new Sport Sedan Concept applies many of the same design elements we've seen on Nissan's previous show cars to a more conventional four-door shape. But far from a design exercise, the decidedly uncreatively named Sport Sedan Concept previews "a future production sports sedan," which has every indication of being the next Maxima.
Its dimensions reveal the concept to be bigger than the current Maxima in every direction but height, with that visual impression further entrenched by a floating roof design that combines with a high waistline to give a coupe-like profile. There are also sharp creases in the bodywork that visually break up the space between the rear set of 21-inch alloys and the tapered greenhouse. The shape is further punctuated by the V-shaped grille and distinctly Nissan boomerang-shaped lights that lend a face to this distinctly Japanese design that was penned in California and honed back in Japan. The sharp and simple cabin is characterized by a high-contrast palette with quilted leather and metallic trim.