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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.

Watch Evo pick its 2015 Car of the Year in this epic video

With just a few days left in 2015, it's the perfect time to check out Evo's annual Car of the Year test to determine the greatest performance vehicle of the last 12 months. The writers' picks for the 11 finalists spanned a breadth of engaging models and included: Peugeot 208 GTi by Peugeot Sport, Lamborghini Aventador SV, Seat Leon Cupra Sub8, McLaren 675LT, Porsche 991 GT3 RS, Porsche Cayman GT4, Honda Civic Type R, Ferrari 488 GTB, Chevrolet Camaro Z/28, Lotus Evora 400, and Mercedes-AMG GT S. For the venue to test the mettle of these performance machines, Evo stuck close to home this year and visited the twisting roads at the beautiful north coast of Scotland. Racing brothers Marino and Dario Franchitti also came along for the ride to provide two more voices in the competitive challenge to determine a winner. Evo's video explains why each model deserves to be among such rarified company but doesn't gloss over their faults either. There can be only one winner, though. We don't want to spoil it, so check out the clip for magnificent views of these performance machines through the Scottish countryside.

Mercedes Digital Light puts a light show on the road

Soon full-featured heads up displays, augmented reality, and intelligent lighting will all work together to provide drivers with the safest and most complete picture of the road ahead. Until then, it's one advance at a time, the latest being Digital Light for Mercedes-Maybach customers. Stuttgart engineers designed a small LED with more than a million micro-reflectors for each headlight. Hardware and software control the light pattern, and paint at least nine different graphics on the road in light to warn of safety issues ahead. Digital Light evolved from the intelligent headlights demonstrated on the Mercedes Experimental Safety Vehicle in 2009 — the same ESF2009 that previewed rear belt-bag inflating seatbelts. Back then, the main beams were composed of 100 LEDs, and a brain controlled each LED to create a specific and occasionally complex lighting pattern. The new Digital Light works with all the cameras, sensors, and navigation information employed by an S-Class, and has increased resolution 10,000-fold to roughly HD quality, with a commensurate rise in the complexity of available patterns and representations. Mercedes cites numerous benefits, one being a "virtually dazzle-free main beam," another being high beams that can selectively darken so as not to blind oncoming traffic or pedestrians. Some of the projected symbols include guide lines on the road representing the width of the sedan when navigating a narrow construction zone, an arrow pointing to a pedestrian either in or very near the road, a snowflake when the temperature drops below freezing, and a chevron placed on the center line or shoulder to warn a driver when he's leaving his lane or when there's someone in his blind spot. Digital Light will first go into service with selective fleet customers for the Mercedes-Maybach S-Class this year. Considering the state of current U.S. auto regulations, we wouldn't expect to see it here for a number of years. Related Video: Featured Gallery Mercedes-Benz Digital Light View 27 Photos News Source: Mercedes-Benz via New Atlas, Gizmodo Maybach Mercedes-Benz Technology Emerging Technologies Luxury Sedan mercedes-maybach