2012 Mercedes-benz C300 4matic Sport Sedan 4-door 3.0l on 2040-cars

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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.

Recharge Wrap-up: Honda FCV Concept comes to Detroit, Toyota seeks young green energy fellows

Honda will bring its FCV Concept to the 2015 North American International Auto Show in Detroit in January. The hydrogen-powered concept made its Japanese debut in November, and will now make its way to North America for the first time. The FCV concept improves upon the design of the FCX Clarity with a more striking appearance and roomier interior. Its smaller powertrain packaging means more space for people, and the FCV Concept seats five passengers. Honda also expects the next-generation fuel-cell car, which is scheduled to go on sale in Japan in March 2016, to cost less and have a range of over 300 miles. Read more in the press release below. The Mercedes-Benz B-Class Electric Drive has been awarded an environmental certificate from the TUV Sud technical inspection authority. The certificate is based not just on the vehicle's operation, but the entire lifecycle of the car, including production and recycling. The B-Class Electric Drive produces 24 percent less CO2 over its lifecycle than the Mercedes-Benz B180 when using the EU electricity mix, and 64 percent less when powered by hydroelectricity. Mercedes credits not just the use of electricity, but also the car's energy management system - such as its radar-based regenerative braking - for its carbon reductions. Read more in the press release below. Scania will test a wirelessly charged plug-in hybrid bus in Sweden. Beginning in June 2016, the bus will be put to daily use in Sodertalje. One of its stops will have a wireless charging station where the bus will recharge for six to seven minutes before continuing on its route again. The charger is located under the road surface and the bus positions itself above it to charge inductively. About $1.3 million will come from the Swedish Energy Agency to fund the test project, which could save up to 90 percent of fuel costs. If expanded to a fleet of 2,000 buses, it could save up to 13 million gallons of fuel each year. Read more at Green Car Congress, and in the press release below. Sandia National Laboratories and Linde are teaming up to expand hydrogen fueling infrastructure. The two groups have signed an agreement to research and develop new hydrogen stations, as well as ways to make fuel cell vehicles more desirable for consumers. They are looking at ways to incorporate hydrogen into existing fuel stations where possible, and make sure that it is able to be done safely.

Frankfurt Motor Show Notes: Why Jaguar decided to build an SUV

It was inevitable. Jaguar had to make an SUV, and that notion became reality this week with the debut of the F-Pace, an all-wheel-drive five-seater that will launch in the United States next spring. Some purists may cringe. But in an era when Porsche, Bentley, Lamborghini, Rolls-Royce, Aston Martin, and other traditional luxury brands are all building or (planning to build) SUVs, Jaguar had to evolve. While it seems like a leap for Jaguar to make an SUV, longtime design director Ian Callum said it's been in the works for years. "The first time I was asked the question was when I arrived 16 years ago," he said. So in 1999 (and probably well before that), Jaguar was already thinking SUV. What took so long? "It wasn't a priority," Callum said. Jaguar was concentrating on fixing its existing lineup, which was pockmarked with holes and poorly selling products, like the X-Type. Along the way, Jaguar and sister brand Land Rover were sold by Ford to Indian conglomerate Tata Motors. Flash forward several years, and Jaguar and Land Rover are both experiencing a resurgence in the United States and around the world. Jaguar's lineup is flush with the E-Type's modern successor, the F-Type, plus a new version of the XF. The XJ received a 2016 freshening, and the smaller XE sedan is on the way. Jaguar put its house in order as other factors conspired to make a crossover timely. Fuel prices stayed relatively low, and consumers in the US and China remained steadfast in their love for utility vehicles of all stripes. Making a Jaguar SUV became a priority. "The world was telling us in no uncertain terms this is what they wanted," Callum said. "Not to be in the sector would be a little naive for the sake of purity." Jaguar proved its intent two years ago when it revealed the C-X17 crossover concept at Frankfurt, and the final production model is close to the prototype's striking looks. "I thought we managed to maintain that spirit," Callum said. It's a true Jaguar, with cues from the F-Type, 1968 XJ, and other famous models. Who would have thought Jaguar would make an SUV? "I certainly didn't," Callum admitted. But the F-Pace is here. If Callum is okay with it, purists can be, too. Quick Hits Opel retrenches for 2016 and beyond Opel used the Frankfurt show to display its new generation of the Astra, a critical vehicle line for the German division of General Motors.