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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.

Mercedes Digital Light puts a light show on the road

Soon full-featured heads up displays, augmented reality, and intelligent lighting will all work together to provide drivers with the safest and most complete picture of the road ahead. Until then, it's one advance at a time, the latest being Digital Light for Mercedes-Maybach customers. Stuttgart engineers designed a small LED with more than a million micro-reflectors for each headlight. Hardware and software control the light pattern, and paint at least nine different graphics on the road in light to warn of safety issues ahead. Digital Light evolved from the intelligent headlights demonstrated on the Mercedes Experimental Safety Vehicle in 2009 — the same ESF2009 that previewed rear belt-bag inflating seatbelts. Back then, the main beams were composed of 100 LEDs, and a brain controlled each LED to create a specific and occasionally complex lighting pattern. The new Digital Light works with all the cameras, sensors, and navigation information employed by an S-Class, and has increased resolution 10,000-fold to roughly HD quality, with a commensurate rise in the complexity of available patterns and representations. Mercedes cites numerous benefits, one being a "virtually dazzle-free main beam," another being high beams that can selectively darken so as not to blind oncoming traffic or pedestrians. Some of the projected symbols include guide lines on the road representing the width of the sedan when navigating a narrow construction zone, an arrow pointing to a pedestrian either in or very near the road, a snowflake when the temperature drops below freezing, and a chevron placed on the center line or shoulder to warn a driver when he's leaving his lane or when there's someone in his blind spot. Digital Light will first go into service with selective fleet customers for the Mercedes-Maybach S-Class this year. Considering the state of current U.S. auto regulations, we wouldn't expect to see it here for a number of years. Related Video: Featured Gallery Mercedes-Benz Digital Light View 27 Photos News Source: Mercedes-Benz via New Atlas, Gizmodo Maybach Mercedes-Benz Technology Emerging Technologies Luxury Sedan mercedes-maybach

Volvo, Daimler, Traton join forces to build electric truck charging network

Volvo Group, Daimler Truck and Volkswagen's AG heavy-truck business the Traton Group announced on Monday a non-binding agreement to build a network of high-performance public charging stations for electric heavy-duty long-haul trucks and buses around Europe. The news was first reported by Reuters. The three major European automakers will invest ˆ500 million (~$593 million USD) to install and operate 1,700 charging points in strategic locations and close to highways. They intend to finalize the agreement by the end of this year and start operations next year, with the hopes of increasing the number of charge points significantly as the companies seek additional partners for the future joint venture. The venture is meant to be a catalyst to prepare for the European Union's goals of carbon-neutral freight transportation by 2050. One of the main deterrents for both individuals and freight companies for switching to EVs has historically been a lack of charging infrastructure. By building that infrastructure, Volvo, Daimler and Traton can also expect to boost their own sales of electric trucks and buses. “It is the joint aim of EuropeÂ’s truck manufacturers to achieve climate neutrality by 2050," Martin Daum, CEO Daimler Truck, said in a statement.  "However, it is vital that building up the right infrastructure goes hand in hand with putting CO2-neutral trucks on the road. Together with Volvo Group and the Traton Group, we are therefore very excited to take this pioneering step to establish a high-performance charging network across Europe.” The partnership between Volvo and Daimler isn't unprecedented. In May, the two competitors teamed up to produce hydrogen fuel cells for long-haul trucks to lower development costs and boost production volumes. This latest venture is another signal that major companies are banding together to solve climate-related issues in the industry. European car industry association ACEA has called for up to 50,000 high-performance charging points by 2030. Traton CEO Matthias Gruendler told Reuters that roughly 10 billion euros would be needed to build out Europe's infrastructure to be fully electrified by 2050. According to a statement released by Volvo, this venture is also a call to action for others with a stake in the industry, like automakers or governments, to work together to ensure the rapid expansion needed to reach climate goals.