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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.

Daimler boss says VW scandal dings 'Made in Germany' brand

"Made in X." "A product of X." "From X with pride." Virtually every country on the globe attaches some kind of moniker to the products it sells, and they generally carry a lot of weight. A Swiss-made watch is better than one made in China, and an Italian suit is better than something from Vietnam. For cars, the "Made In" label is a bit trickier, and is certainly open to opinions. That doesn't mean there isn't some nationalistic pride in play. With the Volkswagen diesel emissions scandal, there's real concern among at least one German that Wolfsburg has caused serious damage to the "Made In Germany" label. Daimler-Benz boss Dr. Dieter Zetsche called VW's use of emissions-cheating devices "a blow to our industry." "I think a strength of 'Made in Germany' and of the German auto industry is a perception that these are reliable brands and you can trust them," Zetsche said at a meeting of the Economic Club of Washington, The Detroit News reports. "It's up to us to rebuild that trust because we haven't done anything wrong." Zetsche also took the opportunity to reaffirm that Mercedes-Benz has never and will never use defeat devices in its vehicles. The exec also said he doesn't think the company has lost any sales from VW's cheating.

If you're a Daimler exec, you'll soon have to drive an EV

Luckily, for Daimler's "senior level" managers, the company has a lot of plug-in vehicle options. Lucky because "in the future," these managers will have to drive the company's electrified vehicles. This most likely means a plug-in hybrid – something like the C 350 e or the GLE 500 e 4MATIC – but it could also be the all-electric and peppy Smart ED or the B-Class EV. Board member Ola Kallenius said in a statement (available below) that this new policy, "We are continuing on the path of zero-emission driving with consistency. This is why we are making electric mobility an integral part of the everyday lives of our top management to set an example and to provide a clear role model." It's a big change from five years ago, when Daimler's director of fuel cell and battery drive development, Christian Mohrdieck, was willing to talk up the drawbacks EVs face. Even a year ago, Daimler CEO Dieter Zetsche explained the financial hardships involved in making EVs. But, EV technology continues to change, and so, perhaps, do the attitudes inside Daimler. As EV advocate Chelsea Sexton said on Facebook regarding this new policy, "This should be standard procedure in any automaker seeking a leadership role in the plug-in vehicle movement. Commitment starts at the top." Related Video: Electric Mobility: Daimler Management leads by example Daimler is once again setting a new milestone on the road to zero-emission driving: In the future managers will drive electrified company cars. Furthermore, Daimler is this year set to invest a further 30 million euros into extending the company's own charging infrastructure across many of its sites. This will also benefit employees, who have access to a growing range of vehicles with alternative drive systems. Stuttgart. It represents a further commitment from Daimler to an electric future for mobility: "We are continuing on the path of zero-emission driving with consistency", states Ola Kallenius, member of the Board of Management of Daimler AG responsible for Mercedes-Benz Cars Sales and Marketing, about the importance of the current initiative. "This is why we are making electric mobility an integral part of the everyday lives of our top management to set an example and to provide a clear role model." The agreement applies to the company's senior levels of management and focuses on plug-in hybrids.