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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.

Daimler: 2017 the right time to launch our hydrogen fuel-cell vehicle

Zero-emissions vehicle development has never focused purely on off-the-line acceleration. So when a research executive with Mercedes-Benz parent Daimler says it's Okay that companies like Toyota and Hyundai will have a head start selling hydrogen fuel-cell vehicle, it's somewhat believable. But is Daimler really fine with being two years behind? It appears so. Daimler plans on debuting its first fuel-cell vehicle in 2017, Automotive News says, citing an interview Automobilwoche had with Daimler's corporate research chief Herbert Kohler. The German automaker estimated about a decade ago that it would be able to get fuel-cell production costs down to an "acceptable" level in 2012, but it turns out that estimate was about five years too aggressive. Daimler originally started leasing out a limited number of its F-Cell hydrogen vehicles in the US for $849 a month, though later brought that down to $599 a month. Daimler says it received a boost in its effort to accelerate fuel-cell powertrain development when it reached an agreement early last year with Nissan and Ford to work together on speeding up relevant powertrain technology. While Toyota's first fuel-cell vehicle in Japan is priced at almost $70,000 (before big government incentives kick in), Kohler says Daimler's first fuel-cell vehicle will be priced similar to a hybrid vehicle. Of course, that's a Mercedes-Benz hybrid we're talking about here, but still. Related Gallery Mercedes-Benz F-Cell View 9 Photos News Source: Automotive News - sub. req. Green Mercedes-Benz Hydrogen Cars h2

Mercedes-Benz GLA Concept gets mobbed in China

If the reception it received at the Shanghai Motor Show is any judge of marketplace acceptance, Mercedes-Benz has a hit on its hands in the form of the GLA Concept. And we can understand why - we're quickly becoming fans of Mercedes' recent styling language, as defined by new models like the CLA and this GLA Concept.
The big news on the exterior front are the headlamp clusters, which have frickin' laser beams attached to their foreheads embedded inside that are capable of projecting videos and images on a screen. Plus, a pair of video cameras are mounted on the roof that can be used to capture driving excitement or removed and taken with you. How cool is that? We just hope they have a substantial locking mechanism to prevent would-be thievery...
If the exterior is mostly ready for production, with a few of the more outlandish elements moved to the trash bin - like, for instance, laser-beam headlamps and removable action cams - the interior is a true custom job that screams concept loud and clear. There are all kinds of jewel-like finishes inside, along with transparent surfaces showing what looks like metal latticework underneath and some awfully thick looking leather with massive exterior stitching done by hand similar to what you'd find on a baseball glove.