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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 G650 Landaulet fetches record $1.4 million at auction

Alas, G-Wagen fans: The last available 2017 Mercedes-Maybach G650 Landaulet has sold to a private Belgian buyer, with all proceeds to benefit the children's sports charity the Laureus Sport for Good Foundation. The price tag at the Zoute Sale at Bonhams was a record ˆ1.2 million, or about $1.4 million. We previously dubbed the luxury off-roader " the ultimate safari machine" for its super-extravagant features. Its soft top can be raised or lowered electronically, as can a glass partition to the driver's compartment (wouldn't be a Landaulet without that, now would it, Jeeves?). What's more, the two rear seats can be fully reclined, with leg rests extending from below, and with access to folding tables, 10-inch LCD screen and heated, cooled and illuminated (!) cup holders. As it has the number 650 in its name, however, the Landaulet also features a twin-turbocharged V12 that generates 630 horsepower and 738 pound-feet of torque. Bringing up the G-Wagen part of the bargain is a four-wheel-drive system with front, center, and rear differential locks, that sends power to solid portal axles front and rear, which move the differential and drive axles above the wheel centers for additional ground clearance. The grandest G sold Friday in Brussels was reportedly straight from the factory and one of only 99 to be built. No G650 Landaulets were sold in the United States. The Bonhams Motoring Department's fifth annual Zoute Sale also saw the purchase of a 1968 Ferrari 365 GTC Coupe for ˆ805,000 euros ($945,000), the second most-valuable lot of the sale. Related Video:

Daimler boss says fuel cell vehicles will be disappointing for at least 10 years

Daimler AG CEO Dieter Zetsche is pretty confident about the imminence of self-driving cars. Hydrogen fuel-cell vehicles? Not so much. He didn't even get into the possibility of self-driving fuel-cell vehicles, but we're okay taking future technologies one at a time. Zetsche, in an interview from the Detroit Auto Show last week, said the automotive industry is about a decade away from avoiding disappointing experiences with production fuel-cell vehicles, In Auto News says. Zetsche was quick to note that the Mercedes-Benz parent entered into a fuel-cell partnership with Ford and Nissan early last year in an effort to split costs and speed things along, with the expectation that the group would develop something together by 2017, but even that won't be able to smooth things out fully. Toyota and Hyundai have said they'd have their own production vehicles on the road sooner than that. Multi-corporation-partnerships notwithstanding, Zetsche bemoaned the high costs, lack of vehicle volume and minimal refueling infrastructure as the proverbial roadblocks to more rapid development and adoption of fuel-cell vehicles. As it is, the US has just 10 publicly accessible hydrogen refueling stations, eight of which are in Southern California, according to the US Department of Energy. As for autonomous automobiles, Zetsche was more upbeat. Daimler already has what it calls the "Distronic" cruise control system that includes an automatic braking feature and has successfully driven a car 60 miles with "with relatively modest adjustments to the existing onboard technology." Featured Gallery Mercedes-Benz F-Cell View 9 Photos News Source: In Auto News Green Mercedes-Benz Hydrogen Cars