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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 teases massive new Maybach coupe

Mercedes-Benz hasn't done a lot with its Maybach brand over the last few years. After killing the slow-selling standalone Maybach line, the badge sat unused, until MB slapped it on a luxed-out S600. But today, Mercedes posted a teaser of a new, two-door Maybach on its social media channels. Immediately given away by the Maybach badge on the C-pillar (and possibly one on the nose), we could be looking at a modern-day Exelero – a successor to Maybach's last coupe, a one-off, 700-horsepower rocket ship that deserved all the Darth Vader's car cliches – capable of extremely high speeds and stunning comfort. Everything from the long hood (better to accommodate some monstrous V12 engine) to the windshield's aggressive rake, to the absurdly long tail, signals a 200-mile-per-hour-plus top speed for this concept. And yes, we're thinking this is a concept. Kick the exposure way up with Photoshop and you can see that the side mirrors are too slim to actually function as normal mirrors – they're almost certainly cameras. Other details? Whatever Mercedes calls its new Maybach, it's going to be huge. According to the caption accompanying the teaser, this car is six meters (19.6 feet) long – that's over three feet longer than an S-Class Coupe and nearly four feet longer than a Bentley Continental GT. Like we said, it's enormous. And that's about all we know. Mercedes dropped this teaser out of the blue, nearly two months before the auto show season kicks off in Paris. It's possible the company could continue to tease out a new Maybach concept until early October, but more likely, we'll see an online debut ahead of the Paris show. Stay tuned. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. Image Credit: Mercedes-Benz Facebook Paris Motor Show Maybach Mercedes-Benz Coupe Concept Cars Performance 2016 paris motor show mercedes-maybach

Mercedes-Benz killing Maybach in 2013, replacing with S600 Pullman

According to an unnamed Mercedes-Benz source speaking with AutoWeek, the German automaker is killing off its Maybach line in 2013.
The unsurprising news comes after the brand was resurrected in 2002, but failed to meet sales expectations with its two core models, the Maybach 57 and 62. Further solidifying its fate, a deal with Aston Martin to aid in the development of future Maybachs fell through earlier this year.
According to the AutoWeek insider, the plan is to continue to sell both Maybach models through the end of 2013, after which the fifth-generation S-Class will go on sale. When that happens, three new variants of the S-Class will be available, including an all-new, range-topping S600 that brings back the Pullman moniker and may be better suited to competing with the likes of Bentley and Rolls-Royce.