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GM patent reveals new two-stage turbocharger

Modern turbochargers may be some of the best ever made, but performance is something that engineers are always trying to improve. According to GM Inside News, General Motors (GM) is hoping to alleviate some of the negative aspects of a two-stage turbocharger setup with a newly-patented design. The patent, that was filed on May 19, 2016, reveals a clever bypass system that allows the engine, a four-cylinder unit, to optimize both the low-pressure and high-pressure inlets for its respective functions. According to the filing, a conventional two-stage turbocharger setup is engineered to allow both turbines to operate simultaneously at low and mid engine speeds. At high engine speeds, only the low-pressure turbine works. The setup can't isolate either the low or high pressure side, which can impair low-end performance. GM's new two-stage turbocharger setup looks to eliminate this by linking the high-pressure turbo to the exhaust manifold through the high-pressure inlet duct. The low-pressure turbo is attached to the high-pressure turbo by a low-pressure inlet duct, which is linked to a connecting channel. A single actuator that is housed in the exhaust manifold creates a bypass that can opens the high-pressure inlet or close the connecting channel. Depending on what the engine load and speed is, the ECU guides the actuator—a single rotating spindle with discs corresponding to flanges on the high and low pressure sides—to isolate one of the two turbos. Isolating the turbos allow the respective inlets to be engineered for the best possible fluid dynamic performance. The setup should increase performance and decrease lag. There's no word on what car this setup will make an appearance on, but it will most likely be used in premium vehicles before trickling down to the rest of GM's vehicles. Related Video: News Source: GM Inside News, AutoGuide via GM Authority Cadillac Chevrolet GM Technology Sedan turbo patent engine turbocharging

Mary Barra reportedly confirms GM's electric pickup truck plans

According to Motor Authority, CEO Mary Barra confirmed General Motors' intentions to build an electric pickup truck this week. Whether or not it would be an all-new vehicle is unknown. The news comes not even a week after Ford announced a $500 million investment in electric-vehicle startup Rivian. First, electric powertrains were integrated into cars. Then came the crossovers and the SUVs. Naturally, then, the next wave will be pickup trucks. Ford is set to produce an electric F-150, Rivian has the R1T, and now General Motors has reportedly confirmed its plans to introduce a competitor into the field. The article says the topic was brought up in a recent investor call as part of a brief overview of the automaker's electrification strategy. That's where the details end, however, as there is no indication of a timeline, what GM brand would carry the truck, or whether it would be an entirely new product or an adaptation of a current model. The latter seems most likely, which points to the Chevrolet Silverado or the GMC Sierra as possibilities. Chevrolet has been GM's electrification leader this decade with the Bolt and Volt, so an electric Silverado would align well with that messaging and branding. However, an electric pickup would likely be a pricier premium product, which could align it better with GMC. Autoblog has reached out to GM for comment and will update this space when we get a response. Green Rumormill Chevrolet GMC Truck Electric Future Vehicles Mary Barra electric truck chevrolet silverado

Recharge Wrap-up: Elio TV ads, Waivecar free EV carsharing

Waivecar is a new carsharing service that allows users two free hours of EV driving. The rentals are paid for with advertising, and each Chevrolet Spark EV in the fleet has an ad board affixed to its roof. So, while the driver enjoys free use of the car, the organizations buying the ads get exposure wherever the user goes. Drivers pay $5.99 per hour past the first two free hours of use. The company is undergoing a three-month trial in Venice Beach and Santa Monica before considering possible expansion. "We're giving to the lower-income people that need cars," says Waivecar CEO Isaac Deutsch. Read more at Green Car Reports. Volkswagen CEO Matthias Mueller is calling for a reworking of European emissions testing. He feels it is time to adapt the tests so that lab results more closely reflect those of real-world driving. "The industrywide discrepancies between official test results and actual usage is no longer tolerable," says Mueller. "We, the industry, need to take a new path." He also says he will make VW more environmentally friendly, and that the automaker plans to roll out 20 new electric vehicles by 2020. Additionally, Mueller is urging politicians to support the building of charging infrastructure. Read more at Bloomberg Business. Elio Motors has launched its first television ad campaign. The 30- and 60-second spots for the three-wheeled EV are titled "Own The Future," and will air on a variety of cable networks including ESPN, Fox News and National Geographic. "Our grassroots and digital efforts have helped create a strong – almost rabid – enthusiasm for our vehicle," says Elio Motors Founder and CEO Paul Elio. "As our funding situation continues to make progress, we are now in a position to share our message and create more fans through this national advertising campaign." Read more in the press release below. Elio Motors Continues Momentum with Launch of First National Television Advertising Campaign PHOENIX, Jan. 26, 2016 /PRNewswire/ -- Elio Motors (www.eliomotors.com) today announced it has launched its first national television advertising campaign to continue building consumer awareness for the company's three-wheeled vehicle that is expected to get up to 84 MPG and sell for a targeted base price of $6,800. The company, which anticipates production to launch in late 2016, has already gained an enthusiastic following through grass-roots events and digital marketing.