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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.

Mercedes will still provide V8 engines to Aston Martin

News of Mercedes suspending sales of the vast majority of its V8-powered cars for the 2022 model year hit the presses about a week ago. However, what wasn’t explained then was the fate of Aston Martins with Mercedes-AMG V8 engines. Many Aston Martin products are powered by AMGÂ’s 4.0-liter twin-turbo V8 engine (the M 177 version affecting AMG products), and itÂ’s one of the motors that we reportedly wonÂ’t see in Mercedes-AMG products next year. Since AMG is struggling to fit its cars with its own engine, that brings into question Aston MartinÂ’s supply of V8s. Car and Driver got some answers from Aston, though, and the situation in the UK doesnÂ’t appear anywhere near as dire as in Germany. “Aston Martin confirms that its supply of V8 engines from Aston Martin AG is not affected," an Aston Martin spokesperson told Car and Driver. So there you have it. AstonÂ’s AMG V8-powered vehicles — Vantage, DB11 and DBX — will supposedly carry on sales without interruption. ThatÂ’s great news for Aston Martin and any uber-wealthy folks who intend to buy one.  At the same time, Mercedes isn't completely out of the V8 game for 2022. In fact, it's still selling cars that directly compete with Aston Martin: AMG GT Coupe and Roadster. Those Mercedes products use the M 178 version of the AMG V8 and are reportedly unaffected by supply issues. ThereÂ’s probably even more to this story as time passes, too. Mercedes has yet to officially acknowledge the stoppage of V8s — we reached out for comment when we published our initial story, but havenÂ’t heard confirmation back yet. When we do, weÂ’ll make sure to update you on whatÂ’s going on. Related video:

Lewis Hamilton on pole in France, Sebastian Vettel only seventh

LE CASTELLET, France — Lewis Hamilton seized pole position for the French Grand Prix in track record time as Mercedes, chasing their 10th successive win, swept the front row of the grid in dominant fashion on Saturday. The Formula One world championship leader was 0.286 seconds quicker than team mate Valtteri Bottas. Ferrari's Charles Leclerc qualified third with team mate Sebastian Vettel a distant seventh on a distinctly off day for the German. The pole, in a time of one minute 28.319 seconds, was a record-extending 86th of Hamilton's career and his third of the season. "I'm happy that I got the potential out of the car, the team did a fantastic job," said five-times world champion Hamilton, last year's winner from pole at Le Castellet's Paul Ricard circuit. "We've just been chipping away at improving the set-up of the car," added the Briton, who is 29 points clear of Bottas after seven races — all won by the pair. Hamilton also triumphed in the last two of 2018. Bottas was fastest in the second phase of qualifying but could not match Hamilton's sizzling pace when it mattered in the final shoot-out. "The wind changed direction and there was a couple of corners my line didn't work and I had to work it out but Lewis had a better lap," said the Finn. Mercedes have looked to be in a class of their own all weekend, with Hamilton or Bottas fastest in every practice session with Leclerc, rather than Vettel, consistently the best of the rest. Vettel struggled, backing out of his first hot lap and then failing to string together all the sectors smoothly on his second attempt. "I don't know what happened, I lost so much momentum there was no point to finish that lap," said the German, who starts behind the Renault-powered McLarens of British rookie Lando Norris (fifth) and Spaniard Carlos Sainz (sixth). "Some laps it felt good and others it didn't. I didn't get the best out of the car but it was difficult for me, but some laps I didn't have he grip I had before." Vettel's time of 1:29.799 was eighth tenths of a second slower than Leclerc's best. Leclerc, who starts with Red Bull's Max Verstappen alongside, asked the team over the radio to get Vettel to speed up but the Monegasque said his lap had not been compromised. Australian Daniel Ricciardo starts eighth for Renault and Red Bull's Pierre Gasly lines up ninth for his home race with Italian Antonio Giovinazzi 10th for Alfa Romeo.