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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.

Lewis Hamilton accepts Vettel's apology, has 'utmost respect'

SPIELBERG, Austria - Triple world champion Lewis Hamilton said he still had "the utmost respect" for Formula One title rival Sebastian Vettel after accepting a public apology from the Ferrari driver on Thursday. Speaking to reporters at a crowded Austrian Grand Prix news conference, the two men addressed a "road rage" controversy that has dominated the headlines since the June 25 race in Azerbaijan. "I still have the utmost respect for him as a driver and will continue to race him hard through the rest of the season," declared Hamilton, who said at the time that Vettel had "disgraced himself" by driving into him in Baku. He said Vettel called him on the Monday after the race and then texted an apology, which he accepted. The championship leader had driven into the back of Hamilton's Mercedes while both were following the safety car in first and second places, waiting for it to return to the pits. Vettel then pulled alongside, gesticulating angrily, before banging wheels. The German, a four times world champion, later accused Hamilton of "brake-testing" him by slowing suddenly. The car's telemetry subsequently showed that was not the case and Hamilton said the accusation was one he particularly wanted correcting. Vettel was handed a 10-second stop-and-go penalty, and finished fourth. He was then summoned to a hearing in Paris last Monday where the governing body declared the matter closed. Initially reluctant to dwell on the matter, saying he did not want to "pump this up more than it is already", the Ferrari driver on Thursday repeated the written apology. "It was the wrong move to drive alongside him and hit his tyres," he said. "I don't think there was any bad intention (by Hamilton). I don't think he actually brake-tested me. I was upset and over-reacted. I am not proud of the moment." Hamilton, 14 points behind Vettel after eight races, missed out on victory in Baku after a headrest worked loose and he had to pit. He finished fifth. Before Baku, the two world champions had made much of their mutual respect and the budding "bromance" seemed to be back on. "It's nice to hear that we are able to move forward," Vettel said. "I think the respect we have for each other on and off track helps us in this regard." Reporting by Alan Baldwin Related Video:

2014 Mercedes-Benz CLA order guide leaked

The dealer order guide for the 2014 Mercedes-Benz CLA has made its way online courtesy of the crew at CLAForums.com, and not only does it shed light on the ways buyers will be able to configure the entry-level sedan, it talks specific option pricing. Shoppers will be able to select between the CLA250 and CLA250 4Matic, and the option sheet should offer a number of packages to suit buyer tastes, including a sport package with tweaked fascias and unique wheels. Bi-xenon headlamps and 18-inch alloys may also be had as well as a panoramic sunroof and a collision avoidance system. The CLA will be available with a number of active safety systems on board, including lane departure warning, adaptive cruise control, park assist and blind spot assist, to name a few.
The new sedan comes in 10 colors, including a very dashing purple Mecedes-Benz calls Northern Lights Violet, and there are a total of four interior trim finishes. The automaker hasn't released final pricing of all models just as of yet - we do know from Mercedes' Kate Upton Super Bowl ad that the car will start at $29,900 - but you can check out individual option and package pricing in the gallery. You can also find more information over at CLAForums.com.