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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.

'The best Lewis' Hamilton faces resurgent Ferrari in F1

SHANGHAI (Reuters) - Lewis Hamilton has raised his game but whether the Mercedes driver can deny Ferrari a second successive win of the season in China this weekend remains to be seen. On paper, the triple world champion is still the man to beat -- the most successful driver by far in Shanghai with four wins to date. "Lewis is the best Lewis that I've seen in the last four years, both on and off the track," said Mercedes team boss Toto Wolff after the Briton started on pole and finished second to Ferrari's Sebastian Vettel in the Australian season-opener. "He has become a pillar of this team and he proved that in Melbourne." But Vettel is leading the championship, the first time a non-Mercedes driver has done that since he took his fourth title with Red Bull in 2013, and once-dominant Mercedes have a fight on their hands. Mercedes, who have taken both the drivers and constructors' titles for the last three years, have won four of the last five races in China. As Melbourne showed, however, past form may count for little in a season of sweeping rule change. "If you think you are going to cruise to victory in the future, based on a track record of success, you'll be proven wrong very quickly," said Wolff. "Australia was a weekend full of lessons, now we go to China ready and excited for another battle." Ferrari have not started a season with consecutive wins since 2004 at the peak of the Michael Schumacher era, the Italian team taking 15 victories from 18 races that season. Vettel's win in Australia ended a victory drought for Ferrari stretching back to September 2015, and drew rare praise from company chairman Sergio Marchionne, but they must now prove they can be genuine contenders. "You really have to go step by step," said Vettel. "It's good to know that we have a great car but it's just the beginning: new regulations, new generations of cars so there will be a lot of progress." The cars this year are longer and wider, sporting fatter tires and more swept-back bodywork as part of a rules shake-up aimed at making them faster, more spectacular to watch and harder to drive. But overtaking has also become more difficult, with Australia raising concern about the lack of real moves. The long straights and wide sweeps of the Shanghai circuit saw 128 passes last year, more than at any other track, and should provide a more definitive verdict.

Automakers face reality of EVs' cost — to jobs, and their bottom line

Related: We obsessively covered the Frankfurt Motor Show — here's our complete coverage FRANKFURT, Germany — European car bosses gathering for the Frankfurt auto show are beginning to address the realities of mass vehicle electrification, and its consequences for jobs and profit, their minds focused by government pledges to outlaw the combustion engine. As the latest such announcement by China added momentum to a push for zero-emissions motoring, Daimler, Volkswagen and PSA Group gave details about their electric programs that could give policymakers some pause. Planned electric Mercedes models will initially be just half as profitable as conventional alternatives, Daimler warned — forcing the group to find savings by outsourcing more component manufacturing, which may in turn threaten German jobs. "In-house production is almost irrelevant to the consumer," Daimler boss Dieter Zetsche told reporters on the eve of the Frankfurt Motor Show, in the midst of a German election campaign in which automotive jobs have loomed large. The company set a target of saving 4 billion euros ($4.8 billion) by 2025 to help fund the cost of its electric cars. "Daimler is the first company to state explicitly how much electric vehicles are going to hurt margins," said Bernstein analyst Max Warburton. "It was brave to go first — but of course it won't be the last." Volkswagen, for its part, said it was seeking new global supplier contracts to source 50 billion euros ($60 billion) of electric car content including batteries, which are not yet manufactured competitively in Europe. "A company like Volkswagen must lead, not follow," Chief Executive Matthias Mueller told reporters. VW diesel emissions-cheating exposed by U.S. regulators in 2015 triggered global public outrage, dozens more investigations into test-rigging by the wider industry and a push by some lawmakers to ban diesel and eventually all engines. TIGHTENING NOOSE Tesla shares jumped nearly 6 percent on Monday after a Chinese minister said it was a question of when, not if, Beijing bans fossil-fuel cars, tightening the noose around the combustion engine. France and Britain have promised its outright abolition by 2040. But PSA, the maker of Peugeots and Citroens, said it was concerned about the risks if consumers were left behind in the rush, and a new generation of battery cars does not sell.