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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.

Recharge Wrap-up: Shift to offer Teslas for Hire, Model S P85D beats Ferrari in drag race

A company called Shift plans to provide bikes and EVs for hire. Based in Las Vegas, NV, Shift will provide chauffeured ride services like Uber, but will also include a car- and bike-sharing service that delivers the desired wheels to the customer. Shift's fleet will include EVs like the Smart Fortwo Electric Drive and the Tesla Model S. Shift also promises that you will, "Be on your way within five minutes," which is a pretty tall order. Shift is scheduled to be available to members beginning this fall. Read more at The Car Connection. Nissan UK has confirmed the price of replacement batteries for the Leaf. UK drivers will be able to buy new batteries for 4,920 pounds (or about $7,738). That's considerably more than the price of $5,499 for US customers. Customers get 1,000 pounds back when they exchange their old battery. The original battery is covered under a five-year, 60,000-mile warranty, and most owners will never need to replace it. According to Nissan, only three replacement batteries have been sold out of 30,000 Leafs sold in Europe. Read more at Autocar. The Tesla Model S P85D walloped a Ferrari in an impromptu drag race video. The Ferrari driver pulls up alongside the Tesla and asks, "What you got in there?" before challenging him to a race. The Ferrari gets a head start, but the Tesla pulls out ahead quickly. The video also gets the reactions of some passengers to the car's mighty acceleration. See the video below and read the account of a drag race against a Lamborghini Aventador at Car Throttle. Australian website Drive has chosen their Cars of the Year in various categories. The Tesla Model S was a carryover winner for Luxury Car Over $80,000, but the Mercedes-Benz C200 narrowly overtook it to be crowned the overall winner. Regarding the Model S, one judge says, "This makes every other EV look at least a generation behind." The main thing that held the Tesla back from winning outright was the near-term lack of charging infrastructure. The judges did note Tesla's plans to build a network of Superchargers in Australia, but also pointed out that those plans exclude much of the country so far. See the video below and read more at Drive. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Race recap: 2015 Abu Dhabi Grand Prix is Germany rising as sun sets

Mercedes-AMG Petronas driver Nico Rosberg Rosberg doesn't attribute anything mystical to the form that got him ahead of teammate Lewis Hamilton. He said simply, "Before it was close in the other direction, now it's close in this direction." Mercedes non-executive chairman Niki Lauda went further, saying Rosberg's "brain has switched." Under the desert spotlights it switched so far ahead that Lewis Hamilton qualified nearly four tenths behind the German. Kimi Raikkonen flew the scarlet for Ferrari in third position. Being three spots ahead of Valtteri Bottas gave Raikkonen a huge advantage in locking up fourth position in the driver's championship. Even if he doesn't care about it, as he's publicly stated, Ferrari probably does. Teammate Sebastian Vettel was classified 16th after the German slowed down after making a mistake on his final hot lap, and neither he nor his engineer realized how quickly times were falling on a cooling track. He'd be promoted to 15th when Lotus driver Romain Grosjean was penalized for a gearbox change. Sergio Perez knocked it out of the park for Sahara Force India, claiming fourth ahead of Daniel Ricciardo in fifth for Infiniti Red Bull Racing. Williams driver Bottas was in sixth, in front of the second Force India of Nico Hulkenberg and the second Williams of Felipe Massa in eighth. Daniil Kvyat ensured both Red Bulls were in the top 10 with his ninth position, and Carlos Sainz got the upper hand in qualifying over his Toro Rosso teammate Max Verstappen for the final time this year, rounding out the top 10. Beyond Nico Rosberg's mind, one of his weaknesses was his slow starts. Those are stronger, too, the German tearing off away from the field when the lights went out. Hamilton bogged enough to have to defend from Perez behind, the Mexican trying to slide between Hamilton and Raikkonen on the run to the first corner. Rosberg held the lead into Turn 1 and likewise held it through Turn 21 on the last lap of the race, only ceding it during pit stops. Rosberg's 14th victory gets him level with Graham Hill on the wins list – on the anniversary of Hill's death in a plane crash – and marks the first time in his 10-year F1 career that he's won three races in a row. More proof of his strength: the last few races we haven't heard Rosberg ask for regular updates about what Hamilton's doing, he just drives. Hamilton gave it his best but that wasn't enough.