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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 GLE gets official before NY Show

Hot off the debut of the GLE-Class Coupe just a few months ago at the Detroit Auto Show, Mercedes-Benz is now all set to unveil that SUV's more utilitarian sibling. The new GLE-Class will offers buyers a model that's a little more traditional looking, while still bringing heaps of available power and luxury to the table. The new GLE-Class replaces the ML-Class in Mercedes' newly renamed lineup. At the front, there's a new nose with a clear family resemblance to the Coupe. It sports big openings all over, and standard models wear an attractive two-bar grille or a just a single crosspiece for AMG trims. Once your eye moves past the A-pillar, the design becomes more of an evolution of the current ML. The prominent C-pillar and wraparound rear glass are still present, while the creases running down the profile appear a little sharper and more pronounced. As you might expect, the interior for the GLE-Class is practically identical to its Coupe counterpart. That means drivers get a thick, multi-function steering wheel to hang on to, and there's a large infotainment display poking up above the dashboard in the center. A center-console-mounted dial controller is found below. When it comes time for buyers to pick their GLE-Class, they're going to have a long list of powertrains to choose from. Lowest in terms of horsepower is the GLE300d 4MATIC with a 2.1-liter, four-cylinder diesel making 201 hp and 369 pound-feet of torque. Next, there is the gasoline-fueled GLE350 with a 3.5-liter V6 making 302 hp and 273 lb-ft, and it's also available with 4Matic. The GLE400 4Matic uses a twin-turbo 3.0-liter V6 to make 329 hp and 354 lb-ft of twist, and the GLE550e 4Matic adds a plug-in hybrid to that mill to bring total output to 436 hp and 479 lb-ft. Finally, for those that really want some power underfoot, the Mercedes-AMG GLE63 and GLE63 S boast twin-turbo 5.5-liter V8s putting down 550 hp and 577 hp, respectively. The standard models all use versions of the 7G-tronic gearbox, and AMG models get the Speedshift MCT seven-speed. We look forward to getting a good look at the GLE-Class at its grand unveiling at the New York Auto Show on April 1. The posh SUVs start arriving at dealers a few months later in August. Buyers wanting the GLE550e 4Matic have to wait just a little longer until it comes along in mid-September. View 19 Photos View 11 Photos World Premiere for the Mercedes-Benz GLE and Mercedes-AMG GLE63 Efficiency meets performance Stuttgart.

Mercedes-AMG planning hybrid hypercar?

It used to be that, a few overlapping two-door models aside, Mercedes-Benz and Porsche didn't really compete with one another. That's how the two ended up collaborating on projects like the Mercedes 500 E that put it on the performance sedan map without fear of stepping on each other's toes. But Porsche has grown considerably since then, challenging its Stuttgart neighbor with four-door sedans and crossovers, as well as sports coupes and convertibles. Little wonder, then, that Mercedes has hit back at Porsche with the AMG GT, and there will be many more versions to follow in 911 style. But that may not be the final salvo the Silver Star marque launches at Zuffenhausen. According to the latest bit of speculation and deduction from our friends at Motor Trend, Mercedes-AMG may be planning a hybrid hypercar of its own to take on the Porsche 918 Spyder – not to mention the McLaren P1 and LaFerrari. Solid information is sparse at this point, but after speaking to AMG chief Tobias Moers, MT speculates that the new flagship will likely be mid-engined, with a boosted version of the company's 4.0-liter twin-turbo V8 kicking out between 650 and 700 horsepower, working with a pair of electric motors at the front to deliver tenacious through-the-road all-wheel traction and a combined output in the thousand-horsepower range. There is the possibility, though, that Mercedes could go after the latest hybrid hypercars with a flagship version of its just-launched AMG GT, packing a similar powertrain setup as the ultimate evolution of the breed. Other GT versions will likely soon include a GT3 racing model, a Black Series version and a roadster – following a similar path taken not only by the 911, but also by Benz's previous halo supercars like the SLR McLaren and SLS AMG.