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Ferrari patents a fancy and fascinating electric turbocharger

While turbocharging has improved vastly over the years, and it has enabled cars to become both more powerful and more efficient, there's always room for improvement. Turbochargers scavenge exhaust gas pressure and use it to turn a compressor that forces intake air into the cylinders. However, as the patent points out, this means the intake compressor and the exhaust turbine are physically coupled, and have to spin at the same rate. Ferrari's design divorces the two, and it's a happy breakup. The key is hooking up the two components of the turbo to their own individual electric motors, with an energy storage device in between. It's different than the electric supercharger systems you have seen on certain Audi products, for example. Those systems recover energy like a hybrid, store it, and then use it to drive an intake compressor. It supplements conventional turbochargers that harvest energy from the exhaust. In systems like Audi's, the electric supercharger is supplementing the sequential conventional turbochargers when they're not operating efficiently, at very low RPM in particular. It works well, but it's complicated, and it is a workaround for the limitations of a conventional turbocharger. See below for an animation of the Audi system. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Usually, optimizing a turbo is a compromise between figuring out what RPM is ideal for each side to spin at to generate power. A smaller compressor generates boost more quickly, but loses efficiency at higher RPM. But there's way more energy in high-RPM exhaust gasses. By hooking up the turbine to an electric motor instead, you can harvest energy from the exhaust throughout the rev range, and particularly when the engine is pushing lots of gasses through. And you can store that energy in a battery if it's not needed at that moment. The intake-side compressor also has a reversible electric motor attached. It is not physically connected to the turbine, so it can operate at any time the computers decide it's beneficial. As engine RPM increases, the compressor doesn't have to increase its speed beyond its optimal range, so there's less energy wasted. And at low RPM situations, when a conventional turbocharger wouldn't have enough exhaust gas passing through its turbine side to generate useful boost in the compressor side, the electric motor can spin up Ferrari's divorced compressor to provide some boost.

Driving the GMC Hummer EV and Mercedes-Benz EQS, EQE, EQS SUV | Autoblog Podcast #750

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder. This week, they talk about driving Mercedes' fleet of EQ electric vehicles, including the EQE Sedan, the AMG EQS Sedan and the EQS SUV. They also talk about piloting the Acura NSX Type S. Next, they discuss the reveal of the 2024 Maserati GranTurismo, including the all-electric Folgore trim, as well as the Ferrari SP51 roadster. Finally, they talk about some of the best (including some unusual) car features for kids. Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #750 Get The Podcast Apple Podcasts – Subscribe to the Autoblog Podcast in iTunes Spotify – Subscribe to the Autoblog Podcast on Spotify RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Cars we're driving 2022 Hummer EV Edition 1 2023 Mercedes-Benz EQE Sedan 2022 Mercedes-AMG EQS 2023 Mercedes-Benz EQS SUV 2022 Acura NSX Type S 2024 Maserati GranTurismo revealed, twin-turbo V6 or 750-hp EV Ferrari SP51 is a V12 roadster with gorgeous paint based on the 812 GTS Spider Best car features for kids and family life Feedback Email – Podcast@Autoblog.com Review the show on Apple Podcasts Autoblog is now live on your smart speakers and voice assistants with the audio Autoblog Daily Digest. Say “Hey Google, play the news from Autoblog” or "Alexa, open Autoblog" to get your favorite car website in audio form every day. A narrator will take you through the biggest stories or break down one of our comprehensive test drives. Related video:

Ferrari California T gets sharper edge with Handling Speciale package

It's been about two years since Ferrari updated the California to T-spec with a 3.9-liter, flat-plane crank, twin-turbocharged engine, and we found it to be a suitable change – rewarding to drive, and compelling to experience. Now Ferrari has introduced a new handling option, which will debut at the upcoming Geneva Motor Show in March, which should add a sharper edge to the roadster. Like most handling packages, the springs and dampers get the most attention. The magnetorheological dampers fitted to the conventional California T get changes that increase their response time to changing road conditions. As before, damper settings are controlled via the steering wheel manettino, and the most aggressive change is to be found in the Sport setting. The front springs are stiffer – 16 percent up front, 19 percent in the rear – which will aid body control in all axes. Ferrari claims that, overall, the setup only marginally reduces the ride comfort. It'll take driving a Handling Speciale-equipped car to find out. The changes go beyond just handling hardware. Shifts are faster in Sport mode, both in automatic and manual modes, thanks to recalibrated transmission logic. Ferrari's engineers also found some additional corner exit speed by tweaking the F1-Trac stability control system's programming. The company claims this tweak also helps with acceleration on bumpy surfaces. Cosmetically, the California Ts with the Handling Speciale package will feature a matte grille, a rear diffuser with matte-painted fences, and matte black tailpipes. A special-edition plaque, located in the cabin, is also standard, Finally, in a very Italian move, the exhaust note has been recalibrated "to underline the performance gains." That is to say, if you don't happen to have a skidpad handy to do a direct measurement of the increase in cornering capability – which, it should be noted, Ferrari doesn't quantify – the sportier sound will serve as a psychological reminder. There's no claim that the new exhaust system changes the engine's output – cars so equipped make the same 553 hp at 7500 RPM as the model we tested back in 2014. Look for the Handling Speciale package to debut at the Geneva Motor Show.