Loaded* Htd/ac Seats* Wood Wheel* Must See* Best Price! on 2040-cars

Auto blog

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 European GP was a cakewalk for Rosberg

Formula 1 teams had no setup data or tire information for the six-kilometer Baku City Circuit hosting the European Grand Prix, and that's the reason for much of the weekend's excitement. Nico Rosberg snatched pole position after Mercedes-AMG Petronas teammate Lewis Hamilton hit the wall during qualifying. When the lights went out, Rosberg put in a clinical drive way out front to score his second career grand slam: pole position, leading every lap, fastest lap, and victory. Sebastian Vettel put in a similarly lonely drive in his Ferrari to second. The German had little to do on track other than get around his teammate on Lap 28, and that came courtesy of team orders. Sergio Perez started from second on the grid, but a gearbox change after clouting the wall during Free Practice dropped him to seventh. The Mexican cut his way through the field after his sole pit stop on Lap 17 of the 51-lap race, passing Ferrari's Kimi Raikkonen for third on the final lap. It's Perez's second podium in three races after finishing third in Monaco. Force India has five podium finishes in its eight-year history, and Perez's name is on four of them. Raikkonen followed in fourth. Stewards hit the Finn with a five-second penalty for crossing the pit-entry line during the race, so even if Perez hadn't passed him on track, Raikkonen would have been classified fourth. Hamilton's up-and-down weekend ended with a burst of radio messages and a whimper. He climbed from tenth on the grid to fifth in the race, then his energy recovery system began harvesting in the wrong places. The snafu cost Hamilton two seconds per lap compared to the leaders. The trouble came from a switch turned to the incorrect position, but the FIA ban on driver assistance meant Hamilton's engineer couldn't tell the driver how to fix the problem. At one point when Hamilton said he was going to reset the whole car, his engineer replied, "Um, we don't advise that, Lewis." Hamilton finally found the proper setting on Lap 43, but turned the engine down again when he realized he couldn't catch the leaders. Mercedes said that Rosberg had the same issue, but Rosberg fixed it on his own. Valtteri Bottas got his Williams across the line four seconds behind Hamilton. Red Bull teammates Daniel Ricciardo and Max Verstappen couldn't get their tires to work, forcing both racers to pit twice before finishing seventh and eighth.

2014 Mercedes SL and SLK add small expansion to Takata airbag recall

Mercedes-Benz is the latest automaker to be affected by Takata's massive airbag recall. The company has announced a voluntary recall campaign on a small number of model-year 2014 SLK- and SL-Class roadsters.
In Mercedes' case, 300 vehicles are affected, 200 of which are in the hands of customers. According to spokesperson Donna Boland, the affected roadsters were built between March and April of this year.
The issue, which is apparently the fault of one of Takata's subcontractors, rests with some improperly installed fasteners, which could keep the airbag from performing the way it's supposed to. According to Boland, Mercedes isn't sure what, if any, injuries the recalled airbags could cause, but simply claims there's an increased risk in these particular vehicles. There's been no reported instances of the faulty airbags deploying on a customer and the original issue was found in a production test.