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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.

Workers at Mississippi auto supplier protesting low wages

Workers at an automotive seat factory in Mississippi are protesting what they say are low wages and poor working conditions as they attempt to unionize in what could become a new front for the United Auto Workers in the state. A group of workers and supporters at the Faurecia SA seating plant in Cleveland plans a Tuesday march. "We work an auto job and we're getting paid like Wal-Mart wages," said Jamarqus Reed, a 32-year-old Pace resident who has worked at the plant for almost 10 years. "We're trying to better ourselves." Nationally, the UAW has staked its future on unionizing Southern auto factories, with limited success so far. The union has been trying to organize Nissan Motor Co.'s Canton, MS, plant for years, and lost a 2008 worker vote at a Johnson Controls plant in nearby Madison that French-based Faurecia bought in 2011. The UAW narrowly lost a unionization vote at the Volkswagen AG plant in Chattanooga, TN, last year, but the union has since qualified for a new labor policy at the plant that grants access to meeting space and to regular discussions with management. The policy stops short of collective bargaining rights. The union is also trying to organize Nissan's assembly plant in Smyrna, TN, and Daimler AG's Mercedes-Benz plant in Tuscaloosa, AL. Protesters say Faurecia employees make a top wage of $11.64 per hour, while contract workers make $7.73 an hour. Company spokesman Tony Sapienza said that with overtime, the typical Faurecia employee makes more than the $27,000 a year that is the median wage around Cleveland. Wages are often low in the heavily impoverished Delta. "We are very confident that we are offering a very competitive wage," Sapienza said. Organizers criticize use of lower-paid contract workers Shannon Greenidge, a 44-year-old Cleveland resident, said she worked for a labor agency for more than two years before being hired directly by Faurecia. Greenidge said she makes $9.29 an hour, and can't save for retirement or to send her 11-year-old daughter to college. "That's not going to help me down the line in life," she said. Union supporters say as many as half the workers at the plant work for a contract-labor agency. Sapienza said that while the number varies, the company expects 15 percent of its workforce will be temporary employees this year. The UAW has organized some Southern auto parts plants in recent years, including Faurecia plants in Cottondale, Alabama, in 2012 and Louisville, Kentucky in 2013.

Maybach Coupe Teased by Mercedes-Benz | Autoblog Minute

It looks like a new two-door Maybach is on it?s way. Mercedes teased the internet this week with a Facebook post featuring a picture of a red two-door coupe. Maybach Mercedes-Benz Autoblog Minute Videos Original Video autos