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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.

VW's Skoda says Ukraine partner making wire harnesses again

PRAGUE — Skoda Auto, part of the Volkswagen Group, said on Tuesday its supply partner in Ukraine had decided to restart production of wire harnesses which should allow the Czech carmaker to resume production of its electric ENYAQ iV model. Russia's invasion of Ukraine has added to supply chain problems for global automakers — which were already struggling with semiconductor shortages that have cut production — with a break in deliveries of wire harnesses from the war-torn country. While Skoda, the Czech Republic's biggest exporter, said it expects the supply of semiconductors to improve in the second half of 2022, it said the war in Ukraine and supply bottlenecks will put a significant burden on its operating business. Skoda's 2021 deliveries fell 12.6% year-on-year and earlier this month it stopped production of the ENYAQ because of harness shortages, saying that two other models were at risk because of the lack of availability of the component. "Our partner ... in Ukraine decided to restart production of wire harnesses this week, with full service and full security for workers there," Karsten Schnake, Skoda's board member for purchasing, said during its online 2021 earnings presentation. Wire harnesses form a key part of a car's electrical system, which group and guide cables inside the vehicle. "We decided to double the production in case something is going wrong, and this production will be ramped up in an alternative factory," Schnake said, adding that work there would start in three or four weeks. "Hopefully we can restart production of ENYAQ one or two weeks later when we have wire harnesses," Schnake said. Skoda delivered 878,200 cars worldwide in 2021, the first time that this had fallen below the 1 million mark since 2013. Nevertheless, the VW group brand's sales revenue rose 3.9% to 17.7 billion euros ($19.5 billion) in 2021 and operating profit rose 43.2% to 1.1 billion euros ($1 billion) as it took cost measures. Skoda did not give a financial or production outlook, saying there were still considerable uncertainties as a result of the conflict in Ukraine and the impact on its Russian operations. Skoda, like VW, has suspended production and other business activities in Russia, which was its second-largest market last year, with 90,400 vehicles delivered. ($1 = 0.9089 euros) (Reporting by Jason Hovet, Editing by Louise Heavens, Kirsten Donovan and Alexander Smith) Related video: Green Plants/Manufacturing Volkswagen Skoda Electric ukraine war

German prosecutors have recorded calls between VW bigwigs talking dieselgate

It's barely possible to believe how poorly Volkswagen continues to handle dieselgate. Depending on which day you catch the news, the German carmaker embodies the corporate venality of "Michael Clayton," the comic blundering of the Coen Brothers' "Burn After Reading," and the every-man-for-himself vengeance of "Reservoir Dogs." Today is Tarantino day, with news that German prosecutors have recordings of phone calls between former Audi and Porsche development boss Wolfgang Hatz, ex-Volkswagen Group executive Matthias Muller, and current Porsche executives Oliver Blume and Michael Steiner. Hatz made the calls to the trio in November 2015, two months after Volkswagen admitted its diesel-particulate sins to the U.S. Environmental Protection Agency. Hatz was still employed at the time, and in his company car. Who recorded the calls? His wife. Hatz and his missus apparently saw the storm coming and started stacking defenses early. Hatz's wife, who can be heard encouraging Hatz during at least one call, sent the recordings to Hatz's attorney from her mobile phone. According to a Google translation of the German newspaper Handelsblatt's report, she included the note, "Here is a very long, but quite informative conversation on the current situation with useful formulations." The report in Handelsblatt said that in Germany it is generally "not allowed" to record a conversation and pass it on to a third party. We don't know how the authorities will handle this matter, since prosecutors found the recordings in e-mail attachments on Mrs. Hatz's mobile phone. Remember, when the diesel scandal broke, VW spent months saying that only a small number of low-level personnel were behind it, and all of the higher-ups had been blindsided. Ex-CEO Martin Winterkorn claimed to be "stunned that misconduct on such a scale was possible in the Volkswagen Group." Winterkorn successor Matthias Muller said, "according to current information, a few developers interfered in the engine management." Former VW USA honcho Michael Horn told a congressional committee that "a couple of software engineers" programmed the software for reasons no one could understand. In the recorded conversations, Hatz apparently called Muller to find out how VW planned to treat him.