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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.

Lewis Hamilton signs another three years with Mercedes

Dominant. That's really the only term we could use to describe the marriage of Lewis Hamilton and the Mercedes F1 team. And now they've signed a new contract. The subject of prolonged speculation, the reigning world champion and his team have announced a new three-year deal that will see Hamilton driving a Silver Arrow at least through the end of 2018. That's good news for Hamilton, who has only ever driven Mercedes-powered cars in Formula One, and for Mercedes, which has secured its star driver for years to come. Although details of the deal (as usual) were not disclosed, the BBC reports that it could be worth as much as $40 million each year. Hamilton's base salary is said to come in at $31 million per season, with extensive bonuses for winning races and championships – something at which Lewis and Benz have proven particularly adept. Racing fans will be well schooled in the trajectory of Hamilton's meteoric rise. He climbed the formula racing ladder with support from Mercedes and McLaren, winning the Formula 3 Euro Series and GP2 championships before hitting the F1 grid for McLaren in 2007 – and quite nearly locking the championship in his first season. He won his first F1 title in 2008, then struggled with the Woking team in subsequent seasons but kept winning races, switching to Mercedes in 2013 after Michael Schumacher re-retired. He won his second championship the following season on the back of 11 grand prix wins last year, and currently leads the standings ahead of his teammate Nico Rosberg. "Mercedes is my home and I couldn't be happier to be staying here another three years," said Hamilton. "The Mercedes car I am driving right now is the best I have ever had in my career."

2019 Chicago Auto Show Special | Autoblog Podcast #570

On this week's Autoblog Podcast, Editor-in-Chief Greg Migliore and Associate Editor Reese Counts discuss the 2019 Chicago Auto Show, including the debuts of the Toyota RAV4 TRD, refreshed Toyota Tacoma, the Mazda Miata 30th Anniversary Edition and the new Subaru Legacy. We also announced our best-of-show winners. We also talk about a couple of SUVs we've had at the office, the new Mercedes-Benz G-Class and the BMW X5. Finally, we spend your money on a new, fun vehicle for winter. Autoblog Podcast #570 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown 2020 Volkswagen Jetta GLI 2019 Mazda Miata 30th Anniversary Edition 2020 Subaru Legacy 2019 Ram 1500 split tailgate 2019 Toyota RAV4 TRD Off-Road Chicago Auto Show Editor's Picks Mercedes-Benz G550 BMW X5 Feedback Email – Podcast@Autoblog.com Review the show on iTunes Podcasts Chicago Auto Show BMW Mazda Mercedes-Benz RAM Subaru Toyota Volkswagen Videos Original Video