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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.

Race recap: 2016 Monaco Grand Prix gets very wet, a little wild

More than at any other race, the Monaco Grand Prix question is: which combination of demolition derby, Safety Cars, and bad pit strategy will decide the podium? Last year Lewis Hamilton's late, confounding pit stop cost him victory. The year before, Nico Rosberg's qualifying "mistake" put him on pole and Mercedes-AMG Petronas' pit strategy sealed his win – good for Nico, bad for Hamilton and the rest of the field. In 2013 Hamilton dropped from second to fourth when he lollygagged in the pits. In all three years, Rosberg won. The new X factor for 2016: a Red Bull resurgence that helped Daniel Ricciardo clinch his first career pole. Nevertheless, bad pit strategy had its say in the results. Ricciardo built up a 13-second lead by Lap 15 in spite of heavy rains that forced the Safety Car to lead the first eight laps of the race. Ricciardo stopped on Lap 23 to switch to intermediate tires for the drying track, ceding the lead to Hamilton. Hamilton pitted from the lead on Lap 31 for softs, then Red Bull pulled Ricciardo in again on Lap 32 and made a snap decision to put him on ultra softs, but the tires weren't ready when Ricciardo reached his pit box. What should have been a three-second pit stop turned into a 13.6-second pit stop. Ricciardo left the pits as Hamilton came down the straight and the Aussie lost the lead into the first corner. Despite two attempts to pass later in the race, Hamilton finished first, the Aussie second. It's the second race in a row where pit strategy cost Ricciardo a near-certain win. Conversely, Force India nailed both tire strategy and pit timing with Sergio Perez. The Mexican started in eighth but got into third before half the race was done, passing four cars in the pits, and finished on the podium's final step. Otherwise the order barely changed from about half distance, with Ferrari driver Sebatian Vettel in fourth, followed by Fernando Alonso in the McLaren, Nico Hulkenberg in the second Force India, Rosberg in the second Mercedes, Carlos Sainz for Toro Rosso, Jenson Button in the second McLaren, and Felipe Massa taking the final point for tenth for Williams. Storms didn't only hover over the area, though – dark clouds hung around several teams and drivers. Mercedes' reliability is no longer so reliable. The Silver Arrows suffered engine issues on both cars in qualifying, and Hamilton's problem almost kept him from setting a time in Q3.

Brabus takes Mercedes-Maybach even further

Hard as it may be to imagine for most, even the flagship Mercedes-Maybach S600 won't be enough for some. And those individuals can now turn to Brabus to customize their limousines even further. The latest tuning package includes an array of enhancements, starting with the engine. That's where Brabus has installed all the upgrades from the Brabus Rocket 900, boring the 6.0-liter twin-turbo V12 out to 6.3 liters, and producing a massive 887 horsepower and 1,106 pound-feet of torque. That'll propel the limo up to an Autobahn-crunching top speed quoted at 217 miles per hour, reaching 62 in just 3.7 seconds. Buyers going for the less potent Maybach S500 offered in certain markets can also opt for the Brabus B50-540 performance kit, which offers 83 extra hp and a further 88 lb-ft of torque. Brabus has also fitted a choice of 21-inch wheels, retuned suspension dropped by an inch, a full aero kit, and new radiator grille. And as sumptuous as it is already, the tuner is also offering upgrades to the interior with special leather and Alcantara upholstery, wood and carbon-fiber trim, and its full iBusiness suite. All of which promises to make the flagship Mercedes even more expensive, of course, but if there was ever an example of "if you have to ask, you can't afford it," surely the Maybach is it. BRABUS refines the new Mercedes-Maybach 662 kW / 900 HP, 1,500 Nm, top speed 350 km/h plus, high-tech forged wheels, sporty-elegant design and even more luxurious BRABUS fine leather interiors The new Mercedes-Maybach represents the absolute pinnacle of state-of-the-art automotive engineering. Nonetheless, even this luxury sedan offers room for individual refinement, which BRABUS (Brabus-Allee, D-46240 Bottrop, phone + 49 / (0) 2041 / 777-0, fax + 49 / (0) 2041 / 777 111, internet www.brabus.com) realizes with a select team of the best engineers, designers, technicians and master craftsmen. The BRABUS ROCKET 900 6.3 V12 twin-turbo increased-displacement engine provides the Mercedes-Maybach S 600 with an enormous rated power output of 662 kW / 900 HP (887 bhp) and a peak torque of 1,500 Nm (1,106 lb-ft). Top speed is in excess of 350 km/h (217 mph). To match the extreme performance of the luxury liner, the appearance of the four-seat car receives some sporty-elegant emphasis with BRABUS aerodynamic-enhancement components and BRABUS Monoblock "PLATINUM EDITION" 21-inch forged wheels. Another BRABUS domain is exclusive interior design.