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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

Scott Pruitt unfiltered: EPA administrator talks climate science, car emissions

U.S. Environmental Protection Agency Administrator Scott Pruitt gave Reuters a wide-ranging interview on Monday at his office in Washington, discussing issues from climate science to automobile emissions. The following is a full transcript of the interview: REUTERS: You have said the EPA will focus on a "Back to Basics" approach under your leadership. What does this mean for how EPA enforces polluters? You have been critical of the idea of regulation by enforcement. PRUITT: I think what I'm speaking about, there is a consent decree approach to enforcement, where you use judicial proceedings to actually engage in regulation. Enforcement should be about existing regulations that you're actually enforcing against someone who may be violating that, very much in the prosecutorial manner. As attorney general [in Oklahoma], I lived that. There was a grand jury that I led. Being a prosecutor, I understand very much the importance of prioritization, of enforcing the rule of law, of addressing bad actors. That's something we are going to do in a meaningful way across the broad spectrum of cases, whether it is in the office of air or the Superfund area, or otherwise. REUTERS: Do you want to see states play a bigger role in enforcing polluters, even though some have less of a capacity to do so – financially and personnel wise? PRUITT: I think the state's role is really, when you look at this office working with states, it should be how do we assist, how do we engage in compliance and assistance with states. The office [at EPA that deals with enforcement] is called OECA, the Office of Enforcement, Compliance and Assistance, so those are the tools we have in the toolbox to achieve better outcomes. So what we ought to be doing is working proactively with state DEQs [Departments of Environmental Quality] to get their state implementation plans [for federal regulations] timely submitted, provide assistance and technical support, drive a draft of state implementation plans, and then actually work with them on how to achieve through those plans better outcomes and air and water quality. As far as enforcement is concerned, we will actually work with states. We actually did that recently with Colorado. There was an oil and gas company that was emitting some 3,000 tons, is that what it was, it was quite a bit of ... it was an ozone case. In any event, we joined with Colorado in that prosecution. So sometimes states will do it, sometimes we will join with them.

Audi, Fiat squabbling over numbers and letters

There have been rumors and speculation and prognostications about a Nissan Juke- and Mini Cooper-fighting Audi Q2 since 2012. There have been the same for a performance-oriented Q4 since 2011, perhaps previewed by the TT Offroad concept shown last year at the Beijing Motor Show. Turns out that those two alphanumeric combos are the only ones missing from the series Q1 to Q9 in Audi's trademark stable, and the Ingolstadt company wants to get them to make its badge sequence and crossover lineup complete. But Fiat owns them, and rumor is, CEO Sergio Marchionne appears to have no interest in selling them. Fiat has used the Q2 and Q4 like trim badges, identifying whether a company product has two-wheel or all-wheel drive. They did it with the Alfa Romeo 159 sedan, and they do it now on the Maserati Quattroporte S and Ghibli S Q4 sedans. Car magazine says Marchionne "may not be categorically opposed to selling the rights," but he absolutely won't do it to any fiefdom in the Volkswagen empire, which would leave Audi a jilted suitor. Why is Sergio being so serious? VW Group CEO Ferdinand Piech first starting waving torches on the bridge between the two companies when he said Alfa Romeo could sell four times as many cars if Volkswagen owned it, then burned the bridge when it continued to publicize its desire to buy Alfa Romeo. VW followed that up by throwing salt on the land around the destroyed bridge with its aggressive pricing in Europe during the worst of the car sales slump there, which Marchionne said was causing a "bloodbath." VW's final flourish was to set the river itself on fire, when a press officer said Marchionne wasn't qualified to head the European Automotive Manufacturers Association (ACEA) and VW would quit the organization if he did take the top spot. That is why, putting it optimistically, Audi looks to have a grim chance of getting the Q2 and Q4 marques from the Italian. So long as he is in power, at least: Marchionne said he's walking away from the job in 2018. Audi might have a better chance bending the knee to, and generously rewarding, his successor. Featured Gallery Audi TT Offroad Concept: Beijing 2014 View 16 Photos News Source: CarImage Credit: Live images copyright 2015 Chris Paukert / AOL Government/Legal Audi Fiat Volkswagen Crossover Luxury Sergio Marchionne trademark volkswagen group