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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

Cadillac launches ATS-V, CTS-V Crystal White Frost editions

With power and performance enough to challenge the best that Europe and Japan have to offer, buyers in the luxury performance market shouldn't need much more reason to consider a new Cadillac ATS-V or CTS-V. But to make its fastest models that much more enticing, Cadillac is rolling out the new Crystal White Frost editions you see here. Available on the ATS-V coupe, ATS-V sedan, or CTS-V sedan (pictured), the new Crystal White Frost Edition models feature unique matte-finish white paint. They also get special wheels and the Carbon Fiber and Luxury packages as standard. Other equipment like Recaro buckets and microfiber-trimmed control surfaces are also available, among other options. GM's luxury division will only make 99 examples available across the three models – 39 ATS-V coupes, 31 ATS-V sedans, and 29 CTS-V sedans. So if you want to get your hands on one, you may have to act faster than these forced-induction performance machines will muscle their way around the track. Prices start at $71,460 for the smaller sedan and extend up to $94,900 for the larger one – those prices including destination but not taxes, registration, and other fees. For a full rundown of the equipment included and available, scope out the detailed press release below. Related Video: 2016 Cadillac V-Series Crystal White Frost Editions CELEBRATING THE FIRST-EVER CADILLAC ATS-V & THIRD-GENERATION CADILLAC CTS-V 2015-10-16 Cadillac today announced the exclusive Crystal White Frost Edition for all three of its new high-performance V-Series models – the 2016 Cadillac ATS-V Coupe and Sedan, and the 2016 Cadillac CTS-V Sedan. These new special edition models celebrate the ongoing launch of the first-ever Cadillac ATS-V and the third-generation Cadillac CTS-V super-sedan. They feature a special production run of low-gloss Crystal White Frost exterior paint, which first appeared for the world premiere announcements of the new V-Series models, receiving positive consumer reaction. The edition includes select V-Series wheels and Carbon Fiber and Luxury packages that are options on regular V-Series models. The 2016 Cadillac ATS-V Crystal White Frost Edition sedans start at $71,460 and coupes at $73,660. The 2016 Cadillac CTS-V Crystal White Frost Edition sedans start at $94,990, including destination freight charges but excludes tax, title, license and dealer fees.

de Nysschen pushes to separate Cadillac, GM

Cadillac President Johan de Nysschen continues his push to separate his brand from General Motors. After controversially picking up shop and moving to New York's trendy SoHo neighborhood, de Nysschen has now gone on record as saying that within two years, the brand will enjoy "a far higher degree of autonomy and self sufficiency." That autonomy will include the brand reporting its own financial results, independent of GM. But what would such a move do for Cadillac? Well, as de Nysschen explained it to Automotive News, "Cadillac at this state makes a very sizeable contribution to the overall profit at General Motors." If that's truly the case, separating financial announcements serves to emphasize the prosperous character de Nysschen seems so keen on attaching to his brand. But that's only one phase of Cadillac's push to distance itself from GM. De Nysschen is eager to revamp the company's dealership model so that it stands out from other GM brands, calling it a "very profound focus." Those moves, according to AN, including a change to the current dealer incentive model with a particular emphasis on building the brand rather than nailing sales figures. "If you aren't strengthening the brand perception, you should have less reward," de Nysschen told AN. While his goals seem clear, de Nysschen's statements have left us wondering whether they're also somewhat counterintuitive. Emphasizing Caddy's prosperity to potential consumers while incentivizing dealers to move less metal seems more like a tactical move rather than a strategic one. And there's no telling how the new dealership model will impact de Nysschen's goal to hit 500,000 global sales by 2020. Related Video: