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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

Safety group pans GM’s new Marketplace in-dash shopping

When it comes to our cars, is the Internet of Things a godsend? Or a hidden menace that will create more problems than it will solve? On the same day General Motors announced it will equip newer-model cars with its in-dash Marketplace e-commerce app, a prominent safety group was shooting it down. National Safety Council President Deborah Hersman tells Bloomberg the technology will only contribute to distracted driving and hurt efforts to stem the tide of rising auto fatalities, which grew 5.6 percent to more than 37,000 in the U.S. in 2016. The National Highway Traffic Safety Administration says distracted driving was responsible for 3,477 fatalities and 391,000 injuries in 2015, the most recent year for which it has data. "There's nothing about this that's safe," Hersman told Bloomberg. "If this is why they want WiFi in the car, we're going to see fatality numbers go up even higher than they are now." Marketplace, developed with IBM, will allow drivers — or more often, one hopes, their passengers — to order coffee or food, find gas stations and reserve hotel rooms from their dashboard screens. The technology is set to be uploaded automatically to nearly 1.9 million GM vehicles model-year 2017 and later that are equipped with WiFi hotspots and compatible systems. By the end of 2018, about 4 million Chevrolet, Buick, GMC and Cadillac vehicles will be equipped with Marketplace. The app will debut with a limited number of participating retailers, including TGI Fridays, Shell, Exxon Mobil and Starbucks, with more likely to join later. Online retail giant Amazon is also partnering with automakers such as Ford to bring e-commerce capabilities inside the car through its Alexa personal assistant. While convenience is nice, one other thing is becoming clear as the IoT wedges its way into our cars: It's taking aim at some decidedly first-world problems.Related Video: Image Credit: GM Buick Cadillac Chevrolet GM GMC Technology Infotainment in-car entertainment marketplace e-commerce

Lincoln hijacks Cadillac's 'Dare Greatly' tagline

Talk about comedy - not even 24 hours after Cadillac teased its CT6 while inviting us to "Dare Greatly" during the Oscars telecast, Lincoln was doing the same but on Google. An anonymous tipster informed us the day after the Oscars that typing "dare greatly" into Google returned two ads before the search results. When we checked it over the course of a few hours, the first ad was always for Cadillac and either read, "Cadillac - Dare Greatly - Only those who dare drive the world forward," or, "Cadillac - Dare Greatly - It's not the critic who counts, it's the man in the arena." (On a side note, come on, Cadillac - "the man in the arena?" Well. It's a quote. Suppose that's all right, then.) The second result was for Lincoln and read, "Dare Greatly - It's not about making a statement, it's about doing what you love," with the associated URL being www.lincoln.com/dare+greatly. The first time we clicked it, it went to the Lincoln homepage showing the 2015 MKZ Hybrid. The second time, we got a page saying that the Lincoln site wasn't available; the Lincoln site was fine, the link didn't work. There's no reference to the Google joke at the Lincoln site - this was just about getting eyeballs. The English have the perfect phrase for Lincoln's provocation: "You've got some cheek!" We think it cunning, dastardly, and funny, and there's no doubt it worked - they knew people would flock to search the term. One of our competitors, Autotrader, said that within an hour of the first of four Cadillac spots airing during the Oscars, car searches for Cadillac vehicles climbed 53 percent from pre-Academy Award coverage levels. Searches for Cadillac cars were up 120%, they said. If this is Round One of our homegrown scrappy old-timers going at it, we're all for it. News Source: Google Marketing/Advertising Cadillac Lincoln Luxury