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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-Benz may create electric-only brand

Daimler's Mercedes-Benz division may follow in fellow German automaker BMW's footsteps by launching its own separate brand for electric vehicles, Hybrid Cars says, citing German publication Handelsblatt, which quoted people familiar with the process. Daimler's board may make the decision to go ahead with the plan as early next month. And the brand may officially be unveiled at the Paris Motor Show in September. Unlike BMW and the i brand, Mercedes would use its existing factories to produce the newly-branded vehicles instead of operating out of a separate one as the i brand does. The first vehicle under the brand is likely to be an SUV model based on the Mercedes-Benz GLC crossover vehicle and would start sales next year. The product line would be broadened further in 2020. Daimler declined to comment, according to Handelsblatt. Mercedes-Benz and BMW wouldn't be the only two German automakers with plans for more electric vehicle sales. Volkswagen has a plan to unleash as many as 20 electric vehicles and plug-in hybrids to the public by 2020, including the Phaeton and the Audi A8. On that note, reports surfaced last month that VW may build its own "Gigafacory" as it prepares to widen its plug-in vehicle push and bring down their costs. As for US sales, Smart sold 313 ForTwo Electric vehicles, down 43 percent from a year earlier. Meanwhile, BMW's i sales in the US fell 40 percent from a year earlier to 2,723. Currently, Mercedes-Benz's only two electric vehicles are the Mercedes B-Class Electric Drive and the Smart ForTwo Electric two-seat vehicle. In the meantime, take a look at Autoblog's First Drive of the B-Class Electric. Related Video: News Source: Handelsblatt, Hybrid Cars Green Mercedes-Benz smart Electric

Mercedes widens luxury sales gap on strong early CLA demand

Mercedes-Benz CLA sales have been booming, with the Stuttgart-based manufacturer moving 2,300 of the sleek four-doors in its first week on sale. That is astonishing. Mercedes moved nearly twice as many CLAs (which start at $29,900) in one week than Jaguar, a brand that is on a very solid roll, sold in all of September. Ignoring the price differences between the Jag line and the CLA, that is still wildly impressive.
Mercedes has been pushing the CLA in television ads, using a shortened version of its Super Bowl spot, which starred William Dafoe, Usher and Kate Upton. "As the bargain entrance into the Mercedes portfolio, we weren't sure how luxury buyers would react," Kelly Blue Book auto analyst Alec Gutierrez told Bloomberg.
The CLA push was just part of MB's 6.7-percent increase in September sales, which were also helped along by a 17-percent jump in E-Class sales. That surge has allowed Mercedes to widen its 2013 sales lead over its rival, BMW, to 2,491 cars, according to Bloomberg. If CLA sales continue at this rate, we can only expect that margin to grow.