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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.

Germany is finally getting serious about self-driving cars

Germany cleared the way for its giant automotive industry to develop and test self-driving cars, when the upper house of its parliament approved on Friday a law setting out the conditions under which they could take to German roads. Under the law, first mooted by Chancellor Angela Merkel last year, a driver must be sitting behind the wheel at all times ready to take back control if prompted to do so by the autonomous vehicle. Germany is home to some of the world's largest car companies, including Volkswagen, Daimler and BMW, all of which are investing heavily in a technology seen by transport minister Alexander Dobrindt as the "greatest mobility revolution since the invention of the car." That's not to say that German automakers have been standing still in the face of autonomous technology. VW recently outlined its vision for autonomous vehicles. BMW has already demonstrated self-driving vehicles in the United States, and Mercedes-Benz has partnered up with German auto supplier Bosch on autonomous technology. The new legislation allows German car companies to road-test vehicles in which drivers will be allowed to take their hands off the wheel and their eyes off the road to browse the web or check e-mails while the vehicle handles steering or braking autonomously. The legislation requires that a black box record the journey underway, logging whether the human driver or the car's self-piloting system was in charge at all moments of the ride. This will be crucial for apportioning blame in accidents. The driver will bear responsibility for accidents that take place under his or her watch, under the legislation, but if the self-driving system is in charge and a system failure is to blame, the manufacturer will be responsible. The law will be revised in two years' time in the light of technological developments, with data protection and the use of the data collected during rides a key point that has yet to be fully addressed. Companies around the globe are working on prototypes for self-driving vehicles, but such cars are not expected to be available for the mass market before 2020. (Reporting By Markus Wacket; Writing by Thomas Escritt; Editing by Toby Davis) Related Video: Image Credit: Chris Ratcliffe/Bloomberg via Getty Government/Legal Audi BMW Mercedes-Benz Volkswagen Technology Autonomous Vehicles

Mercedes trolls kids with uncrashable toy cars

Kids love crashing toy cars. Adults in the real thing, not so much. That's the angle behind Mercedes' latest ad, crafted to promote the company's latest safety systems. The video clip humorously posits what would happen if Mercedes gave out sets of toy cars with strong magnets in them that would prevent kids from crashing them into each other. Needless to say, the kids depicted are not amused by the endeavor. And neither would we have been when we were that age. But the point is nevertheless made. That point is to highlight the company's Brake Assist System Plus – Benz-speak for an automatic braking system – fitted in the new C-Class (among other models). The technology uses two radar systems – one mounted behind the three-pointed star in the grille and another in the front bumper – to detect other vehicles on the road, and, when necessary, apply the brakes. It'll also flash the brake lights to warn drivers behind. The inclusion of Cross-Traffic Assist applies the same measures at intersections, while Pre-Safe Brake adds pedestrian detection into the mix, as well. The creative campaign is the work of the Jung von Matt/Alster ad agency in Germany. And it strikes us as a clever way to showcase the system – or at very least, it looks better than some of the German automaker's previous attempts from ten years ago. Check it out for yourself in the video above.