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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 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:

2016 Mercedes-Benz GLC250 Quick Spin

The 2016 Mercedes-Benz GLC is an all-new luxury crossover that replaces Benz's compact GLK. We're driving it right now, and will have a full first drive soon. But before this, we were granted some early access on a drive from Lithuania to Latvia – just enough to form some initial impressions. As part of Mercedes' expansion with new models (and old models taking on new names) the GLC will no longer be the entry-level CUV for Mercedes – that title has been assumed by the GLA crossover. The GLC moves up not only in the hierarchical range, but grows 4.6 inches in the wheelbase, and is more roomy overall. Most evident, the GLC gets completely new styling, something that is immediately clear upon first glance. Mercedes says the 2016 GLC represents the future design direction for all its SUVs. Continuing the "Sensual Purity" design language of the new S-Class and C-Class, our Euro-spec GLC prototype is curvier, cleaner, and more modern than the more rugged-looking GLK. Mercedes says the US will have standard front and rear bumpers optimized for off-road use, with a 28-degree approach and departure angles for all variants. Despite boasting four doors, the GLC has a coupe-like silhouette. Our model's LED headlights, chrome-finished dual exhaust pipes, and large wheels (up to 20-inches) add to this sporty aesthetic. The real story however, is on the inside, where the GLC mimics the striking interior of the C-Class. Based on our model's open-pore wood, flowing center console, and brushed metallic and piano-black finishes the GLC boasts the nicest interior in the class. With a few short hours spent evaluating Benz's new ute – and evading endless Baltic speed traps – we were able to get some immediate impressions. There's a lot to like here. Driving Notes The 2.0-liter four-cylinder engine is rated at 241 horsepower and 273 pound-feet of torque. But what the driver actually experiences will depend on the five different driving modes. A simple toggle switch on the center console by the MMI touchpad and scrollwheel moves you through the various modes: Eco, Comfort, Sport, Sport Plus, and Individual. Each mode represents a marked difference in steering feel and throttle response. Eco and Comfort modes are fine for driving around town, but lack any semblance of sportiness. Sport and Sport Plus improve feedback, but the GLC never feels quick in any mode. It does feel nimble, and the drive is more car-like than SUV, which bodes well for the majority of US customers.