1991 Mercedes-benz Sl-class on 2040-cars

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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.

2015 Monaco F1 Grand Prix race recap [spoilers]

Lewis Hamilton came to Monaco with a new three-year deal with Mercedes-AMG Petronas and a vow to not let anything, including any "mistakes" by teammate Nico Rosberg, stand in the way of his best qualifying effort. Mercedes reportedly made it rain with a 100-million-pound deal, and Hamilton made it rain right back with his first pole position at Monaco. Rosberg did make a mistake but this time it was behind Hamilton, which meant he stuffed-up the qualifying attempts of rival drivers like Sebastian Vettel. So Rosberg starts second, 0.342 behind Hamilton but 0.449 ahead of Vettel in the Ferrari. Daniel Ricciardo thinks he should have been third, but a communication error with his engineers left him in the wrong engine setting for his final hot lap, so by the very first corner he'd lost the time he would have needed to get higher than fourth on the grid. The second Infiniti Red Bull Racing of Daniil Kvyat slots in behind him, ahead of the second Ferrari of Kimi "Not A Very Happy Day" Raikkonen, who just can't get it going lately. Sergio Perez did for the Sahara Force India what the car can't do on its own, which is grab a top-ten qualifying spot. Toro Rosso rookie Carlos Sainz had qualified eighth but missed a call to the weigh bridge, so he's been slapped into the pit lane. Pastor Maldonado in the Lotus inherits his eighth place, ahead of rookie Max Verstappen in the second Toro Rosso, and Jenson Button in the McLaren. Button only got up there because of two penalties: for Sainz, and Romain Grosjean who had qualified 11th but took a penalty for a gearbox change. Want to know how hard it is to do better on race day than in qualifying at Monaco? Even the never-say-die Fernando Alonso said, "Monte Carlo is a train of cars on Sunday, the race finishes on Saturday afternoon." Well obviously, he didn't take Max Verstappen's seek-and-destroy tactics into account. The young Dutchman had made passing look like a real option in Monaco, getting past Maldonado at St. Devote on Lap 7 after a bit of argy-bargy on Lap 6, then taking advantage of blue flags to slink past teammate Carlos Sainz and Williams driver Valtteri Bottas while hiding in Sebastian Vettel's slipstream. He tried the same move on Romain Grosjean on Lap 65, but Grosjean locked him out. Verstappen lined up the Lotus driver over the following laps, then looked like he slipped to the inside at St.

2015 Italian Grand Prix is smoke, mirrors, stalls, and stewards

For the first day-and-a-half of the Italian Formula One Grand Prix weekend, everything went to blueprint: Mercedes in front, Ferrari lurking, everyone else scrambling in their usual orders behind. Then qualifying came, and someone stirred the pot. About the only thing we expected was for Lewis Hamilton to put his Mercedes-AMG Petronas on pole position, the 11th time he's done it this year. He did it with a brand-new specification engine, one that represents not only an evolution in components, but also in power unit philosophy. Kimi Raikkonen lines up in second. It's been a long time since we read those words; the Iceman hasn't been on the first row since the 2013 Chinese Grand Prix, when he put his Lotus second on the grid behind... Lewis Hamilton. Raikkonen lined up just ahead of a Ferrari at that China race, then driven by Fernando Alonso. In Italy this weekend, he lined up in front of the Ferrari driven by his teammate, Sebastian Vettel, who qualified third. Both Ferraris benefitted from an upgraded power unit, ending a front-row drought for the scuderia that goes all the way back to Monaco in 2009 Germany in 2012. Nico Rosberg has a lot of work to do from fourth in the second Mercedes-AMG Petronas. Mercedes discovered a problem with Rosberg's engine but couldn't figure out the cause, so he reverted to the previous-spec engine he used in Belgium, one that's six races old. The lack of power hurt. Williams teammates Felipe Massa and Valtteri Bottas took fifth and sixth, with Massa seemingly given a team-ordered helping hand. Williams told Bottas to tow Massa down the front straight, giving Massa a blistering time in the first sector. Then Bottas did it again, ensuring he would line up behind Massa. The first Sahara Force India of Sergio Perez nabbed seventh, three places ahead of teammate Nico Hulkenberg in tenth, with Romain Grosjean in the Lotus behind Perez in eighth. Marcus Ericsson in the Sauber qualified ninth, but some clumsy driving saw him impede Hulkenberg twice. The stewards penalized Ericsson with a three-place grid penalty and two points on his superlicense, so Hulkenberg inherited ninth and Pastor Maldonado in the second Lotus inherited tenth. We hardly saw Hamilton during the race, because he led from the start, worked up a larger gap to second place on every lap, and didn't give up the lead for the whole event.