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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 GLA Concept crossover leaked ahead of Shanghai debut

With just a few days left before the start of the Shanghai Motor Show, images of the Mercedes-Benz GLA Concept compact crossover have emerged online. The little 'ute is based on the small A-Class hatchback, and though it shares an identical wheelbase, is larger in every other dimension.
Looking like a rough-and-tumble five-door hatchback on the tippy toes of its 20-inch wheels, the GLA is most certainly destined for production in a toned down form that will borrow many bits and pieces from other cars based on this platform like the aforementioned A-Class and the CLA-Class sedan. Carscoop reports that the production version of the GLA will be revealed at the Frankfurt Motor Show in September of this year, with sales to the public starting in 2014.
Since it's based on the A-Class, we expect that the production GLA-Class will be powered by your choice of Mercedes' 2.0-liter turbocharged inline four-cylinder engine and a diesel or two, and will offer transmissions that include the company's seven-speed DCT and perhaps a six-speed manual (at least in Europe). If the GLA follows the same path as the two cars before it, expect a GLA45 AMG producing over 300 horsepower, as well. As for what powers the GLA Concept, that just might remain a mystery until the vehicle is officially revealed in China.

Mercedes-Maybach GLS Edition 100 layers on the opulence

The Mercedes-Maybach S-Class Edition 100 was revealed yesterday, but it wasn’t the only new Maybach product to come out. No, in addition to the S-Class, Mercedes took the wraps off the Mercedes-Maybach GLS Edition 100. We didnÂ’t have the details for the SUV version right away, but we have them now. None of those details are all that surprising, though. The GLS Edition 100 is built to celebrate the same Maybach centennial milestone as the S-Class, and its appearance is essentially a copycat of the sedan. The one key difference versus the sedan is the number of cylinders under the hood. Mercedes puts its V12 in the S-Class, while the GLS soldiers on with the V8. Let the tears made of money flow for the lack of the additional four cylinders. At least everything else is largely equivalent. The GLS Edition 100 gets painted in the same Designo Crystal White and Silver Grey Pearl two-tone paint scheme. YouÂ’ll find the “Edition 100” Maybach logo on the D-pillar of the GLS. Plus, the logo makes another appearance on the stunning forged grey wheels. The interior of the GLS Edition 100 is also similar to the S-Class, in that itÂ’s finished with a special leather design that is also two-tone in nature with Crystal White and Silver Grey Pearl hides. Everybody who buys one of these Edition 100 cars gets a unique branded car cover and a special case meant to store keys and the carÂ’s paperwork. Pricing isnÂ’t detailed, but Mercedes says Edition 100 cars will be at dealers at the start of 2022 — orders will be taken in the fourth quarter of this year. Related video: