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GM's Cruise Origin EV platform to be shared by many electric vehicles

GM on Monday announced that it was spending $2.2 billion at its Detroit-Hamtramck facility, part of its $3 billion commitment made after the UAW strike to transform Hamtramck into the company's first plant to exclusively build a wide variety of electric and autonomous vehicles. The operation will eventually employ 2,225 people. Hamtramck is still building the Cadillac CT6 and Chevy Impala. Production of those cars will wind down Feb. 28, when GM will idle the lines for 18 months of retooling. During the transition, more than 800 workers will likely be transferred to build pickups at Fort Wayne, Indiana, or Flint, Michigan. When Hamtramck production of new EVs begins in late 2021, the Cruise Origin electric shuttle revealed last week will be among the first vehicles built there. Also, an electric pickup likely branded as a Hummer to be sold as a GMC, which will be debuted by LeBron James during the Super Bowl this Sunday. GM made quite a few pronouncements during the unveiling of the electric, autonomous Cruise Origin last week in San Francisco. We heard that the Origin was designed to last for for 1 million miles, be "roughly half the cost of what a conventional electric SUV costs today,” and riders could save as much as $5,000 per year by giving up their cars for Origins. Much was left out, as well, such as detailed specs on the platform, and when the Origin could see wide deployment. Carscoops addressed one open question about the platform, reporting that the Origin's bones will be shared among a number of other GM battery-electric vehicles, probably starting with the Cadillac EV due in 2021. The site received confirmation of that tidbit from Megan Soule, the automaker's assistant manager of Electrification, Battery Technology, Fuel Cells, R&D and GM Ventures Communications. It seems what we've been shown in the Origin is the first fruit of the multi-vehicle EV strategy GM CEO Marry Barra presented at the 2017 Barclays Global Automotive Conference. One of the slides (below, full PDF presentation here) touts an "All new multi-brand, multi-segment platform" with a "Structurally integrated all new battery system." The next slide places that modular platform at the center of 11 new vehicles, the van-looking silhouette on the upper right labeled "SAV," for shared autonomous vehicle, apparently in reference to the Origin.

2014 Cadillac ELR whirs into Jay Leno's Garage

While Jerry Seinfeld was gallivanting around LA with Sarah Silverman in a Jaguar XKE, our favorite car-loving comedian, Jay Leno, was checking out the all-new 2014 Cadillac ELR. Set to go on sale later this year, Cadillac brought its ELR to Jay Leno's Garage to show off some of its styling and technology as well as give Leno some seat time in the range-extended EV. Leno owns both a Volt and a CTS-V, and the ELR is a kind combination of the two (sort of).
In this episode, Leno spends some time talking to Frank Saucedo, GM director of advanced design, and ELR chief engineer Chris Thomason before logging a few miles on the sleek coupe. Interestingly, it seems that GM has definitely changed its tune a little since the introduction of the Volt a couple years ago; Saucedo and Leno both refer to the ELR as a hybrid, and Thomason says that it gets the "bulk of its propulsion" from the electric motors. Whatever you want to call it, scroll down to watch the latest episode of JLG with some great information and driving shots of the plug-in Cadillac.

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