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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.

2016 Mercedes-Benz C350 Plug-In Hybrid on sale this fall

The Mercedes-Benz C350 Plug-In Hybrid can go from 0 to 60 miles per hour in less than six seconds and can travel 20 miles in all-electric range. As for the more practical issues related to the new PHEV, well, those details will have to wait a bit longer. The C350 Plug-In Hybrid makes its official debut at the Detroit Auto Show this week. The electrified Mercedes will start US sales this fall as a 2016 model. The sedan's four-cylinder, 1.9-liter, turbocharged gasoline engine will be paired with an electric motor that will deliver a combined 275 horsepower. The car will also have such goodies as regenerative braking and collision-avoidance systems, not to mention a top speed of 130 mph. We're still waiting for the car's estimated fuel economy, of course. Not to mention its sticker price. Spy shots of the C-Class PHEV started popping up in May, as well as reports that the Daimler division was testing prototypes in Germany. Meanwhile, this past summer, Mercedes-Benz started taking payments for the S500 Plug-In Hybrid, the German automaker's first production plug-in vehicle. That model, which started European deliveries last September, can zip from 0 to 60 in about five seconds. It also costs about $146,000.

Geely plans to launch hundreds of satellites to guide autonomous cars

BEIJING — China's Zhejiang Geely Holding Group said on Tuesday it was investing 2.27 billion yuan ($326 million) in a new satellite manufacturing plant, where it plans to build low-orbit satellites to provide more accurate data for self-driving cars. Geely, one of China's most internationally-known companies due to its investments in Daimler, Volvo and Proton, is building the facilities in Taizhou, where it has car plants. It aims to produce 500 satellites a year by around 2025, with around 300 highly-skilled staff, it said in a statement. Geely's technology development arm, Geely Technology Group, launched Geespace to research, launch, and operate low-orbit satellites in 2018. Geespace will begin the launch of its commercial low-orbit satellite network by the end of this year, Geely said. Geely said low-orbit satellites would offer high speed internet connectivity, precise navigation, and cloud computing capabilities to cars with autonomous driving technology. Geely, which sold 2.18 million cars last year, is among global automakers from Tesla to Toyota to pursue autonomous driving technologies. It is building low-orbit satellites to meet demand for high-speed connectivity capabilities that can deliver fast software updates. From around 2025, Geely's cars will have more functions to connect to the satellites. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.     Green Plants/Manufacturing Mercedes-Benz Volvo Emerging Technologies Autonomous Vehicles