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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.

Daimler opens the door on Car2go Black with B-Class carsharing

Mercedes-Benz parent Daimler has finally decided to go to its proverbial mothership to further expand its Car2go carsharing service in Europe. The German automaker has long used its itty-bitty Smart Fortwo vehicles for the program, but now it's kicking off a pilot program called Car2go Black that will share Mercedes-Benz B-Class models in Berlin and Hamburg. Daimler will deploy 100 B-Class diesels in each German city. The company says the cars will be parked at so-called "black" parking spots and won't have to be returned to the same spot when the user is done. Daimler, who says the reservation platform is geared for smartphone use, is planning to expand the program to other European cities with existing Car2go service starting this spring. That's important, since once the system is up an running, you will be able to drive a Car2go Black vehicle from one town in the network to another and not need to bring it back. Car2go first started operations in Ulm, Germany, and made its North American debut in Austin, TX, in 2009. The service now has more than 600,000 members worldwide with access to about 10,000 Fortwos in 25 cities throughout Europe and North America. Car2go chief marketing officer J. Paul DeLong said last month that Car2go is the world's largest global carsharing company. You can check out Daimler's Car2go Black press release below. car2go black: Carsharing with the three-pointed star STUTTGART, Germany, Feb. 4, 2014 /PRNewswire/ -- Daimler Mobility Services offers carsharing with Mercedes-Benz vehicles for the first time Pilot Phase with 200 B-Class vehicles starts in mid- February in Hamburg and Berlin One-way trips and open-ended trips available, within and even between different cities Smartphone-based rental procedure makes usage both easy and flexible Daimler Mobility Services will soon be offering carsharing with the three-pointed star. Under the "car2go black" brand, Daimler Mobility Services GmbH will pilot a fully automated carsharing system with Mercedes-Benz vehicles. The pilot phase will begin in mid-February in Hamburg and Berlin. In the initial pilot phase, select car2go members in those locations can use a network of 200 black B-Class models on short notice. The vehicles can be rented at dedicated reserved parking stations, and do not have to be returned to the same dedicated parking station that the vehicle rental originated from.

Leno shows off his current project cars

When your car collection grows to the enormous size of Jay Leno's, adding the usual muscle cars or European exotics loses the allure. It becomes necessary to start taking the things in weird directions. Leno is proving just that with his latest tour of many of the ongoing projects currently happening in the garage. With everything from Harley-Davidson generators to '50s hot rods on display just in this short video, there's something any fan can love. The place is like an automotive wonderland. For most people any one of these projects would be an absolute dream. For example, Leno has a copy of a one-off Mercedes-Benz racecar transporter that is nearly ready to drive. Another project hasn't even started yet but already seriously piqued our interest. Leno obtained a very ratty 1966 Volvo 122S wagon, but rather than just a restoration he's has a plan to get a V8 with a flat-plane crank from Volvo performance specialists Polestar. Another project on the way should provide a significant upgrade in performance, while still being quite green. Leno's team has already rebuilt the frame and wooden body from a 1914 Detroit Electric, and with that work done they've started dreaming of a modern drivetrain for it. One proposed candidate for the swap has been to install motor from a Nissan Leaf and a bank of lithium-ion batteries. News Source: Jay Leno's Garage via YouTube Aftermarket Celebrities Mercedes-Benz Volvo Electric Performance Classics Videos Jay Lenos Garage detroit electric