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Mercedes-Benz engines with 48-volt systems coming in 2017

As part of a big green push announced yesterday, Mercedes-Benz is jumping into the world of 48-volt power. The company will launch a new family of efficient gasoline engines next year and will begin rolling out 48-volt systems with it, likely in its more expensive cars first. Mercedes will use the 48-volt systems to power mild-hybrid functions like energy recuperation (commonly called brake regeneration), engine stop-start, electric boost, and even moving a car from a stop on electric power alone. These features will be enabled through either an integrated starter-generator (Mercedes abbreviates it ISG) or a belt-driven generator (RSG). (RSG is from the German word for belt-driven generator, Riemenstartergeneratoren. That's your language lesson for the day.) Mercedes didn't offer many other details on the new family of engines. There are 48-volt systems already in production; Audi's three-compressor SQ7 engine uses an electric supercharger run by a 48-volt system, and there's a new SQ5 diesel on the horizon that will use a similar setup with the medium-voltage system. Electric superchargers require a lot of juice, which can be fed by either a supercapacitor or batteries in a 48-volt system. Why 48-volt Matters: Current hybrid and battery-electric vehicles make use of very high voltages in their batteries, motors, and the wiring that connects them, usually around 200 to 600 volts. The high voltage gives them enough power to move a big vehicle, but it also creates safety issues. The way to mitigate those safety issues is with added equipment, and that increases both cost and weight. You can see where this is going. By switching to a 48-volt system, the high-voltage issues go away and the electrical architecture benefits from four times the voltage of a normal vehicle system and uses the same current, providing four times the power. The electrical architecture will cost more than a 12-volt system but less than the complex and more dangerous systems in current electrified vehicles. The added cost makes sense now because automakers are running out of ways to wisely spend money for efficiency gains. Cars can retain a cheaper 12-volt battery for lower-power accessories and run the high-draw systems on the 48-volt circuit. The industry is moving toward 48-volt power, with the SAE working on a standard for the systems and Delphi claiming a 10-percent increase in fuel economy for cars that make the switch.

Formula One speeds towards radical thousand-horsepower shakeup

The teams, the drivers, the fans, the circuits... few, if any, were satisfied with how Formula One has shaped up since the current regulations took hold last year. But that doesn't mean they aren't working on it. At a recent meeting of the F1 Strategy Group, the leading parties in the sport outlined a new framework that would radically shake up the cars themselves while keeping costs in check. And the biggest change could see the engines producing around 1,000 horsepower. Although a proposal put forth by Ferrari to ditch the current V6 hybrid engines in favor of new twin-turbocharged units was rejected by Honda and Mercedes, the members of the group approved in principal to increase the fuel flow in the existing engines to dramatically boost output. As it stands, the current 1.6-liter turbocharged V6 engines develop around 600 horsepower, with an additional 160 or so kicked in by the electric Energy Recovery System, for a combined output of about 760 hp. What's not clear at the moment is whether the increased fuel flow would necessitate either the return of mid-race refueling (currently banned) or the installation of larger fuel tanks. Red Bull and McLaren also submitted proposals to radically redesign the shape of the cars as well, however a more evolutionary approach was adopted instead. Though far from finalized, the new design would keep the same basic form of the current chassis, but with adjustments to make them more aesthetically pleasing while producing more downforce. Wider tires are also said to be part of the mix. With more power and more grip from the tires and aero, the resulting cars would most certainly end up going much faster than the current ones, which are already starting to nudge the lap records at some of the circuits, many of which were set during the V10 era. The F1 Strategy Group is made up of representatives of the FIA, Formula One Management and six leading teams. The next step will be for the teams' technical directors to iron out how to implement what their bosses have agreed to. If they settle the details fast enough, the revised regulations could be pushed through in time for next season. News Source: AutosportImage Credit: Mark Thompson/Getty Motorsports Ferrari Honda Infiniti McLaren Mercedes-Benz F1

2024 NY Auto Show, the new Mercedes G and a possible Xterra revival | Autoblog Podcast #825

In this episode of the Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Associate Editor Byron Hurd, who joins us fresh from the floor at the 2024 New York Auto Show. They start with an overview of the show and this year's big debuts, then pivot to other news for talk of the 2025 Mercedes G-Class unveiling. After that, they touch on the potential for a Toyota FJ Cruiser revival, which then leads them to an Autoblog scoop from Nissan: a new Xterra is apparently on the table. They wrap up news with an overview of this year's Easter Jeep Safari concepts. From that, it's on to what they've been driving. Greg has spent some time in the Genesis G70, while Byron shares his thoughts from his first few weeks behind the wheel of the Autoblog long-term Subaru WRX.  Send us your questions for the Mailbag and Spend My Money at: Podcast@Autoblog.com. Autoblog Podcast #825 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 New York Auto Show Other News 2025 Mercedes G-Class FJ Cruiser Returning? Xterra Returning? 2024 Easter Jeep Safari What We're Driving Long-Term WRX Genesis G70 Spend My Money 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: Podcasts New York Auto Show Genesis Hyundai Infiniti Kia Mercedes-Benz Nissan Subaru Volvo Truck Crossover Hatchback SUV Wagon Concept Cars Electric Future Vehicles Luxury Performance Sedan