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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-Maybach SUV concept: Vision Ultimate Luxury interior teased

Mercedes-Maybach posted a teaser video of what it calls "the ultimate in luxury" last week, saying that the featured, yet-to-be-named vehicle would be presented in the Beijing Motor Show. Now there's a teaser sketch giving us a wider look of the concept's interior, as well as a name. The concept also has a name by now: the Vision Mercedes-Maybach Ultimate Luxury. We guess that might have been coming, even if the name isn't exactly concise. But, the accompanying release also informs us that the concept is a combination of a high-end sedan and an SUV, confirming that it is indeed the high-riding vehicle that's been rumored for a while. The interior sketch also shows a very wide center console with stylized grab handles, which suit the SUV dimensions and aesthetic, without being as trucklike as the Maybach G650 Landaulet's interior. As well as the lavish two-tone color scheme and the touch of wood on the door panel, the concept interior shows a wide color instrument display ahead of the driver. The gear selectors are paddle shifters next to the chunky steering wheel rim, and the controls seem to have been grouped on the wheel's spokes, leaving just a few switches on the dashboard. Autocar reports that the concept will be followed by a 2019 production version, slated to debut at the Los Angeles show at the end of this year. It would be based on the Mercedes-Benz GLS, but with a more bespoke design inside out, as hinted by the concept. Basing it on the GLS would mean Mercedes would be manufacturing it at the Tuscaloosa plant in Alabama, making it the first Maybach built in the U.S. Related Video: Image Credit: Mercedes-Maybach Beijing Motor Show Maybach Mercedes-Benz SUV Concept Cars Luxury mercedes-maybach

Mercedes could make EV batteries with Audi, BMW

It's not a big leap from digital maps to batteries, it turns out.The head of Mercedes-Benz parent Daimler said recently that he envisions his company working together with German automotive competitors BMW and Volkswagen to further accelerate electric-vehicle battery technology. The three automakers recently worked together to enhance their in-car maps systems. Daimler CEO Dieter Zetsche talked about "commonalities" between automakers, not the least of which is the need for all of them to achieve increasingly stringent fuel-economy requirements in the European Union, at the Frankfurt Auto Show last week, according to Reuters. While these companies have made their own inroads as far as plug-in vehicles go, they are all behind the Renault-Nissan Alliance when it comes to public deployment of electric vehicles. This summer, Daimler, Audi and BMW hooked up to acquire the Nokia Here digital-mapping service for about $2.8 billion. The triad of automakers beat out companies such as Apple and Uber to buy the entity, which was founded in 1986 as Navteq. Nokia bought the company in 2007. The acquisition makes sense as the automakers work on improving their products with features like cloud-based data to warn drivers of icy roads and traffic jams. The technology will likely also eventually be used in autonomous vehicles. Automakers working together for a common goal of improved technology is nothing new, of course. General Motors and Honda agreed in 2013 to work together to accelerate hydrogen fuel-cell drivetrain development. Earlier that same year, Daimler said it would work with Ford and Nissan in a separate collaboration to speed up the development of hydrogen fuel-cell technology. Related Video: