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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.

The tumultuous history of the diesel engine

Volkswagen, diesel's most enthusiastic patron, deceived everyone about the amount of emissions its cars were putting out. We have covered this latest massive automotive scandal in great detail, and there are surely more fascinating revelations to come. It turns out that this is just the latest episode in the epic story of the controversy and intrigue surrounding the diesel engine, and its inventor. This is the story of the tumultuous birth and interesting evolution of the compression-ignition engine at the center of the VW scandal. Napoleon III Got Rudolf Diesel Deported Rudolf Diesel was born in Paris in 1858. His Bavarian parents had settled in France where his father, Theodor, was a leather goods manufacturer. When the French Parliament declared war on Prussia, kicking off the Franco-Prussian war, the Diesels fled to London. When he was 12, Rudolf went to live with his aunt and uncle in the Bavarian university town of Augsburg. It was his parents' hometown, and importantly, it's where Rudolf began studying at the Royal County Trade School. His time in Augsburg, graduating at the top of his class from trade school that laid the groundwork for all that was to come. Diesel Nearly Blew Himself Up An early career in refrigeration saw Diesel running R&D in Berlin for Linde, a company started by refrigeration pioneer Carl Von Linde, one of Diesel's professors. His ambition to branch out beyond refrigeration, and his deep understanding of thermodynamics, led to efficiency experiments with steam engines. Diesel was trying to create an engine that didn't waste heat from the combustion process, therefore getting the most work out of the fuel. Instead, he was nearly killed when an experimental ammonia vapor steam engine exploded. Recovery took many months, and during some of that time, he was no doubt planning his next experimental engine, based on the theoretical Carnot cycle. His Engine Was An Attempt To Stick It To The Man Steam engines were expensive to run and wasteful. Diesel thought the efficiency of his design would be a way for the small business to compete with the dominant industrial giants. It was, and it did, but big business is equally passionate about chasing efficiency. Diesel engines quickly proliferated in industries both grand and cottage. Rudolf Didn't Really Invent The Diesel As We Know It Instead, he improved an existing one to a significant degree. The Diesel engine could be considered an evolution of the "hot-bulb" engine.

Felicity Ace sinks with thousands of VWs, Porsches, Lamborghinis

The stricken ship Felicity Ace sank overnight after a week of salvage efforts ultimately proved unsuccessful. The ship, which was carrying up to 4,000 VW Group cars, went to the bottom unexpectedly while a salvage team was attempting to tow it to shore, Bloomberg reports.  "Initial reports from the local salvage team state that the vessel had sunk at around 9AM local time having suffered a list to starboard," Mitsui O.S.K. Lines transportation company (MOL), which owns the Felicity Ace, said in a statement released early Tuesday.    "The last vessel position was around 220nm off the Azores," MOL said. "The salvage crafts will remain around the area to monitor the situation. Further information will be provided as it becomes available." The ship sank after being battered by waves and listing 45 degrees to starboard, the ship’s operator said. “The weather was pretty rough out there,” Pat Adamson, a spokesperson for MOL Ship Management (Singapore), a unit of Mitsui OSK Lines Ltd., said by phone. “And then she sank, which was a surprise.” VW, Porsche, Audi, Bentley and Lamborghini-branded models were aboard the ship, which was headed to Rhode Island from GermanyÂ’s Emden port when the fire broke out on Feb. 16.  Rough seas and ongoing fires fueled by the lithium-ion batteries of EVs onboard delayed the ship's salvage and recovery operations for the better part of a week. While the likelihood of salvaging the smoke and potentially fire- and water-damaged vehicles from Felicity Ace's hold was slim to none, some had held out hope that their special-ordered vehicles might survive the mishap.  The Panama-flagged Felicity Ace was safely evacuated of its 22 crew members by the Portuguese navy after a fire started in its hold more than a week ago. The ship can carry up to 4,000 cars. European carmakers declined to discuss how many vehicles and what models were on board, but it appears to have been transporting approximately 2,500 cars, including roughly 1,100 Porsches and an undetermined number of Volkswagens.  The cars aboard were on order. Porsche customers in the United States were being contacted by their dealers, the company said. “We are already working to replace every car affected by this incident and the first new cars will be built soon,” Angus Fitton, vice president of PR at Porsche Cars North America, Inc., told The Associated Press in an email. The ship sank in water nearly 10,000 feet deep, the Portuguese Navy said.