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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.

Driving the Kia K5 and Mini Cooper JCW GP, plus an interview with Jimmy Chin | Autoblog Podcast #637

In this week's Autoblog Podcast, Editor-in-Chief Greg Migliore is joined by Senior Editor, Green, John Beltz Snyder and News Editor Joel Stocksdale. They veer off right away into talking about their dream project garages. Next up is news, including some info on the next Nissan Z car, the Honda Fit being discontinued in the U.S., new Mercedes-Benz EQS details, and some talk about the new, electric GMC Hummer being adapted for the military. Then they talk about driving the new Kia K5 sedan and the Mini Cooper JCW GP, before they opine about the 1966 Pontiac GTO. Autoblog Senior Producer Chris McGraw interviews Oscar-winning filmmaker Jimmy Chin about his collaboration with Ford for the Bronco reveal, and more. Finally, our editors help a listener in the U.K. pick a used vehicle in the "Spend My Money" segment. Autoblog Podcast #637 Get The Podcast iTunes – Subscribe to the Autoblog Podcast in iTunes RSS – Add the Autoblog Podcast feed to your RSS aggregator MP3 – Download the MP3 directly Rundown Some thoughts on project cars News Nissan suggests the next-generation Z won't be electrified at launch Fit Is Gone! Honda drops subcompact hatch in U.S. Mercedes-Benz announces the electric EQS will offer over 435 miles of range GMC's electric Hummer could someday serve alongside the Humvee in the U.S. Army Driving the 2021 Kia K5 Driving the 2020 Mini Cooper JCW GP 1966 Pontiac GTO: Love it or hate it? We talk Ford Bronco and other adventures with Oscar-winning filmmaker Jimmy Chin Spend My Money Feedback Email – Podcast@Autoblog.com Review the show on iTunes Related Video:

Geely chairman is now the single biggest investor in Daimler

Li Shufu, the chairman and main owner of Chinese carmaker Geely, has built a stake of 9.69 percent in Daimler AG, the German carmaker said in a regulatory filing on Friday. The stake, worth nearly $9 billion at the current valuation for Daimler shares, makes Li the biggest single shareholder in the maker of Mercedes-Benz cars, trucks and vans headquartered in the German city of Stuttgart. A Daimler spokesman called the stake purchase a private investment by Li. "We are delighted, with Li Shufu, to have won over another long-term investor who is convinced of Daimler's innovative prowess, strategy and future potential," the spokesman said in response to a request for comment. "Daimler knows and respects Li Shufu as a Chinese entrepreneur of particular competence and forward thinking." Li's stake purchase makes him the top shareholder in Daimler ahead of the Kuwait Investment Authority, which owned 6.8 percent as of Sept. 30, according to Thomson Reuters data. Earlier this month, the German newspaper Bild am Sonntag reported that the Chinese industry giant was seeking to become Daimler's biggest shareholder, likely exceeding the 6.8-percent stake of the Kuwait Investment Authority. The paper said Daimler had reportedly turned down Geely's $4.5 billion offer for a 5-percent stake via a discounted share placement, saying that Geely could buy shares in the open market. Institutional investors currently own 70.7 percent of Daimler, and the company already has strong ties to Chinese automakers BAIC and BYD. Bild am Sonntag said the move was intended as a strategic alliance against Apple, Google and Amazon on autonomous and connected cars. And Reuters reported that Daimler wants to have bespoke "robo taxis" on the road quicker than Google's Waymo, and views Geely as a strong partner for that. Geely conversely is interested in Daimler's electric car battery technology, and sources quoted by the German paper say there are plans to establish joint electric car manufacturing in Wuhan, China, to meet China's smog-reducing quotas. Geely is developing the Lynk & Co. brand of electric and hybrid cars. Geely owns Volvo, which has enjoyed a renaissance under the arrangement, as well as the maker of London's black cabs. In December, it bought a stake in AB Volvo, the maker of Volvo trucks.