2008 Mercedes-benz R350 4matic Wagon 4-door 3.5l 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.

Win a car while supporting a charity this holiday season

Autoblog may receive a share from purchases made via links on this page. Pricing and availability are subject to change. No donation or payment necessary to enter or win this sweepstakes. See official rules on Omaze.  The leaves have fallen, there is a crispness to the air and there have already been multiple forecasts of snow, which can only mean one thing: We're coming up on Christmas. While you've been busy thinking about what kind of gifts you're going to give your loved ones, we here at Autoblog have been deciding which dream car we'd like to see in our driveway on Christmas morning. A car for Christmas does seem a bit extreme and expensive, but thanks to these Omaze sweepstakes, it doesn't have to break the bank. Here are the current sweepstakes we'd like to win this holiday season. Win a DeLorean DMC-12 - Enter at Omaze James Riswick, West Coast Editor: Let me be clear, the DeLorean is a pretty terrible car. Its speedometer doesn't even go up to the fabled 88 mph. Seriously, look at the pictures: tops out at 85. Also, who services a DeLorean? And how much would it cost to maintain one? $AlloftheMoney or just $MostoftheMoney? So owning it could be a total headache, but at least by winning one through Omaze, you'd be relieved of the financial burden of buying one in the first place. You'd also get the chance to own one of the most iconic cars of all time, one that transcends car enthusiasm and is instantly recognizable by everyone as the "Back to the Future" car. Plus, "everyone" doesn't know that the DeLorean was actually a pretty terrible car. So, I already own James Bond's car from 1995, why not Doc Brown's from 1985? Win a 2021 Bentley Bentayga V8 - Enter at Omaze Eddie Sabatini, Production Manager: Why am I choosing a +$200K Bentley SUV? Because even if I could afford one I'd never be able to wrap my head around spending money on one. So why not try to win one by donating what I can afford to a good cause? I first saw the Bentley Bentayga up close and personal at the Frankfurt Motor Show (I forget which year but I'll never forget this SUV). And although it looks like the Bentayga Omaze is offering up doesn't have the opulent tailgate setup I fell in love with when I saw it in Frankfurt, I'd still enter to win. Win a 1968 Mercedes-Benz 280SL Pagoda - Enter at Omaze Byron Hurd, Editor: Few automotive marketing efforts stick out in my head more than the Mercedes-Benz holiday spots and magazine placements.

Recharge Wrap-up: Volvo's efficient truck concept, Tesla's updated mobile charger is cheaper

Mercedes-Benz plans to equip its gasoline-powered cars with particulate emissions filters, just like its diesel vehicles. Claiming to be the first automaker to apply the technology to gasoline motors, successful testing in the S500 led to the decision to expand the use of these filters. This announcement coincides with a $3.35 billion investment in clean diesel technology, including a new four-cylinder engine that adheres to strict emissions guidelines. It's not clear when Mercedes will begin including the filters on its gasoline vehicles, or if it intends to use them outside of Europe. Read more at Green Car Reports. Tesla has updated its mobile charger and given it a lower price. The 40-amp "Mobile Connector Bundle" – which used to sell for $650 – is now priced at $550 with two adapters and a storage bag, with an available $520 version offered without the adapters. Tesla's product description reads, "The Corded Mobile Connector has an integrated 240 volt 50 amp rated plug for high power output. A seamless design provides a low profile connection, allowing for use with covered outdoor outlets." Read more at Electrek. Volvo has developed a new truck concept that reduces fuel consumption by more than 30 percent. The modified Volvo FH 420 long-haul truck, simply called the Volvo Concept Truck, features 40 percent better aerodynamic efficiency, a weight reduction of about 4,400 pounds, and tires with lower rolling resistance. The truck's rear view mirrors have been replaced by cameras, which, in addition to reducing drag, also improve safety through better visibility. While the research vehicle won't reach market as-is, some of its aerodynamic features have already been included in real-world applications, with more to come as Volvo aims to improve the efficiency of its trucks by 50 percent. Read more at Green Car Congress, and in the press release below. Volvo Trucks' new concept truck cuts fuel consumption by more than 30% Almost one-third lower fuel consumption. Volvo Trucks' new concept vehicle shows how it is possible to drastically boost productivity in long-haul operations. Among the secrets behind these remarkable fuel savings are aerodynamic design and lower kerb weight. With support from the Swedish Energy Agency, Volvo Trucks has developed a new concept vehicle, the Volvo Concept Truck. It is the result of a five year long research project aimed at creating more energy-efficient vehicles.