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GM shows off 'digital vehicle platform' enabling more in-car tech and OTA updates

It appears to have dropped the sobriquet "Global B," but General Motors' new electrical architecture has bowed in drawings and video. This is the "digital vehicle platform" GM president Mark Reuss spoke to Reuters about in 2015, saying it would move a great deal of a vehicle's computer work to the cloud and enable over-the-air updates. Reuss took the microphone for the debut, too, saying, "Our new digital vehicle platform and its eventual successors will underpin all our future innovations across a wide range of technological advancements, including EVs and expanded automated driving." The system will go into production later this year, appearing in dealerships first either on the 2020 Cadillac CT5 or the mid-engined 2020 Chevrolet Corvette. Yes, these are the same electronics cited for delaying the launch of the C8 Corvette over excessive draw, security and getting the more-than-100 computer modules to communicate seamlessly. When Car and Driver asked about that, GM replied with "No comment." Volkswagen's having the same issues with the Mk8 Golf right now, though, so GM isn't alone, and this will be the new normal among OEMs for a while. What's certifiable is that the new architecture is robust enough to handle 4.5 terabytes of data per hour, which is five times what GM's current wiring can handle. And thanks to Ethernet connections of 100 Mbps, 1 Gbs and 10 Gbs, communication within and without the vehicle happens much faster. The advances mean better screen resolutions, better battery management for hybrids and electric vehicles, the capability for over-the-air updates and "functionality upgrades throughout the lifespan of the vehicle." Cadillac's Super Cruise has already been lined up as a leading candidate for constant improvements in the driving assistance suite, a key part of GM's "vision for a world with zero crashes, zero emissions and zero congestion." And whenever GM decides to take the plunge, it will mean a 48-volt electrical system. More than 300 specialists worked on the digital platform, and security was a huge part of the task. We've already heard that GM consulted with Boeing and military contractors on how to prevent hacking. The carmaker has an internal Product Cybersecurity group that reached out to the research community, and created a "bug bounty" program to crowdsource uncovering any flaws.

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

Kurt Busch suspended indefinitely after losing appeal

NASCAR has officially suspended Kurt Busch indefinitely after he was found in violation of two specific clauses in the stock racing rulebook, specifically "Actions detrimental to stock car racing" and a "Behavioral Penalty." Earlier in the week, the State of Delaware issued an Order of Protection from Abuse against him after a case detailing alleged domestic violence committed by Busch against his girlfriend, Patricia Driscoll, reached its conclusion. Busch and his legal team have exhausted all of their appeals options, meaning the indefinite suspension is official and final. Busch will not take part in the Daytona 500, which kicks off the 2015 NASCAR season today. Regan Smith will drive the No. 41 Stewart-Haas Chevrolet today at Daytona. It's not yet clear if Busch will face criminal charges over the domestic abuse incident. A Commissioner for Kent County in Delaware found that a "preponderance of evidence" led him to conclude that Busch did indeed commit "an act of domestic violence" against Driscoll, but that is a separate matter from the police investigation into the incident that is now in the hands of the office of the attorney general. NASCAR INDEFINITELY SUSPENDS DRIVER KURT BUSCH Daytona Beach, Fla. (Feb. 20, 2015) -- NASCAR has indefinitely suspended driver Kurt Busch for actions detrimental to stock car racing following the release today of a supplemental disposition setting forth the findings and conclusions that formed the basis for the Family Court of the State of Delaware's decision on Monday to issue an Order of Protection from Abuse against him. Busch, driver of the No. 41 car, was found to be in violation of: • Section 12.1.a: Actions detrimental to stock car racing • Section 12.8: Behavioral Penalty "Given the serious nature of the findings and conclusions made by the Commissioner of the Family Court of the State of Delaware, NASCAR has indefinitely suspended driver Kurt Busch, effective immediately. He will not be allowed to race nor participate in any NASCAR activities until further notice. "Kurt Busch and his Stewart-Haas Racing team are fully aware of our position and why this decision was made. We will continue to respect the process and timetable of the authorities involved." News Source: NASCAR via Nascar.comImage Credit: Maddie Meyer/Getty Celebrities Government/Legal Motorsports Chevrolet Racing Vehicles stock car racing stewart-haas racing domestic violence patricia driscoll