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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

Forza Motorsport 6's new drivable Hot Wheels cars are the best

Each month, Turn 10 Studios releases a new car pack for the latest installment of its Forza Motorsport video game. Sometimes that means less-than-exciting stuff coming to our Xbox Ones – BMW X6M, bleh – but this time our inner seven-year-old is beyond ecstatic. Two of the seven cars are based on actual Hot Wheels models. And. They're. Awesome. First we have the 2011 Hot Wheels Bone Shaker. Yes, there are flames on the side. And yes, there's a giant skull where the grille should be. This one came from the imagination of "Mr. Hot Wheels" Larry Wood, whose design was so popular it inspired an actual real-world creation. Like all good things in this world, it's powered by a small-block Chevy V8. Oh, and it has no roof. This will be a popular one among gamers. The other digitized Hot Wheels creation is a 2005 Ford Mustang. A modest vehicle, sure, but the toy designers have festooned this pony car with a wild paint scheme and the body mods to emphasize it. Originally developed to celebrate the 'Stang's 50th birthday, this Hot Wheels car trades Americana for wild Japanese style. There's just one functioning life-size version of this car in existence as well, but if you look hard, you might be able to find one of the 1:64 scale models that inspired it. Other highlights from this month's car pack include the latest Ford Focus RS – finally time to replace that NASCAR-V8-powered, all-wheel-drive 2009 Focus RS – the 2015 McLaren P1 GTR, the 2016 Chevrolet Camaro SS, the aforementioned X6M, and Alain Prost's 1990 Ferrari 641 F1 car. The Hot Wheels Car Pack is available for download today. Related Video: Featured Gallery Forza Motorsport 6: Hot Wheels Car Pack News Source: Turn 10 Studios via YouTube Toys/Games BMW Chevrolet Ferrari Ford McLaren Racing Vehicles Performance video games Hot Wheels forza motorsport chevy camaro ss forza motorsport 6

Plug In 2014: VIA makes the case for 'free' plug-in hybrid work vans, trucks

If you're a fleet manager who's been waiting anxiously for the chance to buy a plug-in hybrid van from Via Motors, your wait is almost over. If you work for the right fleet, anyway. David West, the chief marketing efficer for VIA Motors, took AutoblogGreen for a ride around the San Jose Convention Center in a Via van sporting an Electric Blue paint job as part of the Plug In 2014 Conference this week and gave us an update on how things are coming along. The big news is that the Via PHEV van production is going to start by the end of September. Via can currently build two vans an hour at its production plant in Mexico, or about 16 a day and could easily double that. "That would get us to 20,000 a year with two full lines running," West said. "We have the capacity." "There is no way gas can compete with electric." – David West, Via Motors But they can't sell that many quite yet. By the end of December, around 350 Vans will be made, mostly for a $20-million program from the Department of Energy (DOE) and the South Coast Air Quality Management District that will see the vehicles used by fleets that will report energy data to the Idaho National Lab. Via is also finishing up CARB certification for both the van and the company's plug-in hybrid pick-up truck. About 50 percent of Via's technology in the truck will not need to be tested again, since it's the same as what's in the van, but things like crash tests will need to be done twice. Despite the progress, this is not where Via hoped it would be today. The bankruptcy of battery supplier A123, "took about a year off our timeline," West said. "It's been getting a little slow getting it to market, there have been some challenges, particuarly since we had the country's worst recession right in the middle of this wrap up, but it's inevitable in my mind. There is no way gas can compete with electric." Maybe that's why FedEx has expressed an interest in buying around 5,000 units, West said. FedEx already has some pilot vehicles, just like Verizon does, and PG&E wants to replace all of their gas trucks with electric vehicles, which would be another 3,000 sales, he said. Besides the fuel savings, vehicles like these, with easy on-site power generation, could also work wonders in post-disaster situations, he said, since they could replace the need for generators.