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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.

Recharge Wrap-up: 2015 Fuel Economy Guide available, how Porsche ships 919 Hybrid

The EPA and Department of Energy have released the 2015 Fuel Economy Guide. Unsurprisingly, the groups say that this year features more fuel efficient and low-emissions vehicles than previous years, and they span a greater variety of vehicle types. The guide also provides "best-in-class" lists, greenhouse gas ratings and estimated fuel costs for each vehicle. The EPA and DOE hope that car buyers will use the guide to help choose cars that are better for the environment and the climate. Check out the guide for yourself or read more in the press release below. To get from one WEC race to the next, Porsche ships its 919 Hybrid LMP1 cars by air. As the team travels around the world - from continent to continent - it must take 35 tons worth of cargo with it, including two LMP1 cars. That means draining fluids, partially dismantling the cars, and fitting everything into a 747. The team also ships items by sea, which requires shipping extra sets of items due to the longer shipping times. "It's all about efficiency," according to Porsche. Read more in the press release below. Terra Motors is unveiling the A4000i electric scooter, which it will sell in Europe, at the EICMA motorcycle show in Milan. The A4000i, which features smartphone connectivity, will be the company's European flagship model. Terra Motors will begin selling in Italy, and plans to make arrangements to sell in several more countries shortly after. Terra hopes to set up manufacturing in Europe, as well. Also on display at EICMA is the company's Bizmo II electric scooter, which has a driving range of 93 miles on a single charge. Read more in the press release below. Volkswagen is providing a 2015 e-Golf to Stanford University for research. The car will be used to study electric mobility, improvements in the driving experience and people's driving behavior and attitudes toward EVs. "Volkswagen's longstanding relationship with Stanford has allowed us to push the boundaries of automotive research and innovation," says Volkswagen's Ewald Goessmann, "and we look forward to extending our work together to drive advances in electric vehicles." See the video and read more in the press release below. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. EPA, DOE Release 2015 Fuel Economy Guide for Car Buyers The U.S.

Defying Trump, major automakers finalize California emissions deal

WASHINGTON — The California Air Resources Board (CARB) and major automakers on Monday confirmed they had finalized binding agreements to cut vehicle emissions in the state, defying the Trump administration's push for weaker curbs on tailpipe pollution. The agreements with carmakers Ford Motor Co, Volkswagen AG, Honda Motor Co and BMW AG were first announced in July 2019 as voluntary measures prompting anger from U.S. President Donald Trump. A month later, the Justice Department opened an antitrust probe into the agreements. The government ended the investigation without action. The Trump administration in March finalized a rollback of U.S. vehicle emissions standards to require 1.5% annual increases in efficiency through 2026. That is far weaker than the 5% annual increases in the discarded rules adopted under President Barack Obama. The 50-page California agreements, which extend through 2026, are less onerous than the standards finalized by the Obama administration but tougher than the Trump administration standards. The automakers have also agreed to electric vehicle commitments. Volvo Cars, owned by China's Geely Holdings, said in March it planned to join the automakers agreeing to the California requirements. It has also finalized its agreement. The settlement agreements say California and automakers agreed to resolve "potential legal disputes concerning the authority of CARB" and other states that have adopted California's standards. In May, a group of 23 U.S. states led by California and some major cities, challenged the Trump vehicle emissions rule. Other major automakers like General Motors Co, Fiat Chrysler Automobiles NV and Toyota Motor Corp did not join the California agreement. Those companies also sided with the Trump administration in a separate lawsuit over whether the federal government can strip California of the right to set zero emission vehicle requirements. Ford said the "final agreement will reduce emissions in our vehicles at a more stringent rate, support and incentivize the production of electrified products, and create regulatory certainty." BMW said "by setting these long-term, predictable, and achievable standards, we have the regulatory certainty that is necessary for long-term planning that will not only reduce greenhouse gas emissions but ultimately benefit consumers as well."