Auto blog

Mercedes-Benz S-Class presentation leaked, debuting in May

WorldCarFans was reportedly sent what looks like a dealer presentation on the coming V222 series 2014 Mercedes-Benz S-Class. There have been hints for years as to the kinds of technology the world's best-selling large luxury sedan will contain, and it appears those hints had some foundation. To be shown in Germany on May 15 before a launch window that runs from September to November this year, the evolutionary design will be built of aluminum and steel, using that lighter material for the front end, roof and "detached body parts."
Among the new options buyers will be able to choose are the Rear Seat Package with rear seatbelt airbags and active buckles that extend, a Warmth and Comfort Package with heated seats front and back, heated armrests and side panels, and power rear seats with active ventilation and memory function. There's a chauffeur seating option that comes with 10-way adjustable rear seats, an extendable footrest and folding tables in the front seatbacks.
Blatant technology will be on display via two 12.3-inch screens, one for the dash cluster and one for the COMAND infotainment screen on the instrument panel. The third generation of Nightview Assist Plus will be able to detect animals as well as humans, and the next generation of Surround View will provide high-res views all around the car. A touchpad and a color head-up display will arrive in 2015. It will be the first Mercedes-Benz to utilize LED lighting everywhere, inside and outside the car.

Aston Martin signs Letter of Intent for technical partnership with AMG

A little over two months ago came reports that Daimler and Aston Martin were in talks, again, about "supply and technical-cooperation agreements." The next step has been taken with Aston Martin announcing that it has signed a Letter of Intent that looks "towards a technical partnership" with Mercedes-AMG GmbH, and the two companies aiming to have definitive agreements done by year's end.
While it will get to use certain electric and electronic components from AMG, the true golden egg for the maker of the Vanquish will be the ability to develop a new line of "bespoke V8 powertrains" that will be fitted to "a new generation of models." In return for opening up the larder, Daimler will get a non-voting stake of up to five percent of Aston Martin.
Nothing else is being said about the tie-up for the moment, but there's a press release below with a few more details.

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.