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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 previews its curvy sports-car and design future

Suggesting creases are passe for automotive design, Mercedes showed off ideas for its future styling directions this week at a forum in Germany, including previews of upcoming sports cars and sedans. We see images of a curvy sports car study (the silver car) with huge wheel arches flared out almost like pontoons. There's also what appears to be a rear-engine hypercar (white car); we've been reading reports about it for months. Additionally, there's a red sporty saloon, as Mercedes calls it, also among the photos. It features prominent rounded fenders and a bold horizontal grille. Mercedes also previewed its upcoming A-Class, in what it calls the Aesthetics A sculpture, which looks like a car covered in a red sheet. Though Mercedes says this is its next step to a purer design, creases and strong lines are still evident on the sides. Related Video:

Next Mercedes E-Class to get quad-turbo inline-six, augmented reality

It's been 10 years since an inline six-cylinder engine sat up front in a Mercedes-Benz road car, but the straight-six shooter returns with the 2016 E-Class. According to a report in Car we'll see a modular family in gasoline and diesel versions, and Auto Evolution adds that the bore and stroke will be shared by both fuel types. Car says a 2.9-liter diesel variant arrives first in global markets, putting out 313 horsepower when twin-turbocharged and "over 400bhp" when fitted with two more battery-powered turbos. Auto Evolution's numbers match those and add torque figures, with 516 pound-feet for the former and 627 lb-ft for the latter - but it makes no mention of the two extra turbos. AE believes the gas versions will ring in at 367 hp and 479 lb-ft, and 435 hp and 553 lb-ft. Keep in mind that until we hear it from Stuttgart, this is all (exciting) speculation. Elsewhere in E-ville, more aluminum and that scalable MRA platform mean a weight loss of somewhere between 154 and 330 pounds compared to today's car. Seven bodystyles (including the CLS-Class) will continue to make up the range, with the coupe and convertible growing a bit to provide proper four-seater comfort. It will bear the new standard for Daimler technology, showcasing the next step in the company's Intelligent Drive with features like phone-controlled self-parking in confined spaces and augmented reality in the heads-up display. Related Video: Featured Gallery Mercedes-Benz E-Class Spy Shots View 12 Photos News Source: Car, Auto Evolution Rumormill Mercedes-Benz Technology Diesel Vehicles Hybrid Luxury Performance Sedan augmented reality