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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 V-ision e Concept ups the plug-in hybrid van game

The various V-Class vehicles from Mercedes-Benz don't get a lot of press around here, but when the German automaker brings something as unusual as the Concept V-ision E (yes, there's a dash in the name) to the Geneva Motor Show, we're happy to make an exception. The standard powertrain V-Class was first unveiled in Geneva last year and it returns in 2015 as a decidedly Daimleresque take on a plug-in hybrid van with a whole heap of cool new technology under the hood. C'mon, you know you want a luxury plug-in hybrid van. Well, if you think you don't want a van like that, listen to the specs and maybe you'll change your mind. It's got an all-electric range of up to 31 miles (if you're going no faster than 50 mile per hour), roughly 78 miles per gallon equivalent (based on the stated fuel economy of 3.0 liters burned per 100 kilometers) and a top speed of 128 mph. That should be plenty to get the basketball team to the tournament on time and in style. The powertrain has a total system output of 333 horsepower thanks to a four-cylinder engine and a 90-kW electric motor. If those numbers sound vaguely familiar, that's because Mercedes said it's "the same advanced drive system" as what's found in the Mercedes-Benz C 350 e, even though some of the performance figures differ. Stylistically, Mercedes has pulled no punches, adding two sun roofs, a real wood floor, nappa leather and executive seats along with something shiny and silver called "designo titanium alubeam" paint. In short, this is an everything-and-the-kitchen-sink approach to PHEV design, and we like it. It's just a concept, though, so don't go asking to buy one just yet. Instead take a better look in the gallery above and dream of going to the auto show prom in a van like this. V-Class concept car with a PLUG-IN HYBRID drive: Mercedes-Benz Concept V-ision e - Higher Performance at Lower CO2 Emissions Stuttgart, Mar 03, 2015 At the Geneva International Motor Show the Concept V-ision e from Mercedes-Benz presents a preview of the great variety of development potential offered by the V-Class. The concept vehicle combines environmentally friendly performance with the lightness of modern luxury. The most advanced PLUG-IN HYBRID technology available ensures extremely powerful propulsion in the model, as the highly efficient drive-system duo consisting of a gasoline engine and an electric motor delivers total system output of 245 kW (333 hp) and system torque of up to 600 Nm.

Mercedes-Maybach G650 Landaulet is the ultimate safari machine

Update: A Mercedes representative has informed us that the Mercedes-Maybach G650 Landaulet will not be available in the United States. The text has been updated to reflect this. Vehicles such as the Mercedes-Benz G63 AMG 6x6 and G500 4x42 are all well and good, but they have one key issue: They simply aren't extravagant enough. Now we know that sounds insane because one of those vehicles has six driven wheels and the other is available in tennis-ball green. But they must not be decadent enough because Mercedes went a step further with the new Mercedes-Maybach G650 Landaulet. While the most obvious change here is the soft-top, which will make this perfect for the wealthy to view wildlife on private safaris, we should start under the hood. The previous two monster G-Wagens made do with lowly V8s. This one features a twin-turbocharged V12 making 630 horsepower and 738 lb-ft of torque. Like its predecessors, this G650 uses a four-wheel-drive system with front, center, and rear differential locks, and sends power to solid portal axles front and rear. These axles move the differential and drive axles above the wheel centers for additional ground clearance. Inside, the rear passengers will be in the lap of luxury, even while the driver is navigating particularly harsh terrain. The soft top can be electrically raised or lowered, as can a glass partition to the driver's compartment. The two individual rear seats can be fully reclined, and leg rests deploy from below, taking full advantage of the truck's long wheelbase. This would likely make for an amazing vehicle for stargazing. The passengers also have access to folding tables, 10-inch LCD displays, and heated, cooled, and illuminated cup holders. Only 99 of these G650s will be built. Mercedes will show the SUV at this year's Geneva show, and it will hit the market this fall. Mercedes hasn't announced pricing, but expect it to be exorbitant. Not that matters for American buyers, since a Mercedes representative told us it won't be offered in the States. For buyers in countries where the G650 will be available, they will have the option of four interior color schemes, three soft-top colors, and four paint hues. Related Video: