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Audi says new 48 volt micro-hybrid system improves fuel economy, paves way for electrification

Most cars use a 12-volt system to power their electrical components. But, with more and more electric bits and bobs being added to new vehicles, a dozen volts is looking a bit weak these days. In fact, Audi says that standard 12-volt systems are being stretched "to their very limits." Enter 48 volts. If used in a car that gets 40 mpg, that would translate to around 43.5 mpg. Audi is testing a supplemental 48-volt electric system in two prototype vehicles – modified mild-hybrid versions of the A6 TDI and the RS 5 TDI – in order to add in more electric technology (an electric compressor, for example, to improve acceleration) and "convenience systems for dynamic chassis control." Audi says it has more applications in the pipeline, but the overall gist is that the German automaker sees 48 volts as an "important building block in electrification strategy." As you can see in the picture above (click to enlarge), the RS 5 TDI concept uses a li-ion battery installed in the back of the car and an alternator to provide 48 volts when the engine is off. Audi says that the 48-volt system can save up to 0.4 liters of fuel per 100 kilometers. To put that into US numbers, if used in a car that gets 40 miles per gallon today, that would translate into a bump up to around 43.5 mpg. The Advanced Lead Acid Battery Consortium (ALABC) is also working on a 48-volt system to improve fuel economy and we've got a deep dive of Audi's electric turbocharger here. Even more powerful and efficient – the new 48-volt technology from Audi Important building block in electrification strategy More voltage and more power for new technologies Scalable platform concept suitable for wide-ranging uses Ingolstadt, August 25, 2014 – Audi is to upgrade part of its vehicle electrical system from twelve to 48 volts. The move represents another technical building block for facilitating the integration of new automotive technologies while increasing the power and efficiency of its cars. "We are using the full bandwidth of electrification in our drive principles strategy. Running part of the vehicle electrical system at 48 volts plays a central role in this," commented Prof. Dr. Ulrich Hackenberg, Member of the Board of Management for Technical Development at Audi. "It enables us to make more energy available.

Autoblog's ultimate holiday rides

Over the hills and through the woods, it's the time of year when many of us visit family and friends for the holidays. But getting there can be a chore. It's cold and snowy across much of the United States, and even if the climate is favorable, the drive to grandmother's house often is not. Think back to holiday road trips of yore: They probably included crying babies, antsy children, hungover adults and frequent bathrooms stops all around. Now, we're all at different life stages here at Autoblog, and the perfect car for one staffer might be as useful as a team of Budweiser Clydesdales to another. Some of us bounce from family event to family event with children and a labrador in tow, while others prefer a quieter, simpler holiday. But whatever the endeavor, we all need wheels. With that in mind, here is the unofficial Autoblog list of the ultimate cars in which to tackle the holiday season. 2015 Ferrari FF To borrow a chestnut from Top Gear presenter James May, "As you'd expect, I've done this properly." That oddly voluptuous ruby bolide in the photo above? It's a 2015 Ferrari FF – all 652 all-wheel-driven horsepower of it. What makes a Ferrari the ideal for holiday time in PaukertLand? My Midwestern winter breaks are wonderful, but they're typically frenetic and slushy, involving a lot of schlepping from house to house and even city to city, not to mention inevitable last-minute runs for forgotten presents and dinner ingredients. Needless to say, a powerful V12 is a welcome ally for such duties. And this one isn't just a friend when the road is clear. The FF has been gifted Ferrari's novel 4RM AWD system, and despite sitting lower to the ground than, say, an SUV, it's a pretty effective tool for real winter driving, especially when outfitted with a set of snow tires. Unlike other Ferraris, it's also a rather practical thing, with legitimate seating for four adults and 15.9 cubic feet of cargo space – that's precisely as much room as a Mercedes E-Class – and you can fold the rear chairs and cram 28.2 cubes-worth of holiday cheer in the back. Okay, so it's far from cheap and fuel economy isn't that great, but who cares? Just drop a paddle-shifted gear or two, bury the throttle and Repeat The Sounding Joy. Ain't the holidays grand? – Chris Paukert Executive Editor 2015 Chevrolet Tahoe My Mom gives out more presents than any other human being I've ever encountered.

Audi, Fiat squabbling over numbers and letters

There have been rumors and speculation and prognostications about a Nissan Juke- and Mini Cooper-fighting Audi Q2 since 2012. There have been the same for a performance-oriented Q4 since 2011, perhaps previewed by the TT Offroad concept shown last year at the Beijing Motor Show. Turns out that those two alphanumeric combos are the only ones missing from the series Q1 to Q9 in Audi's trademark stable, and the Ingolstadt company wants to get them to make its badge sequence and crossover lineup complete. But Fiat owns them, and rumor is, CEO Sergio Marchionne appears to have no interest in selling them. Fiat has used the Q2 and Q4 like trim badges, identifying whether a company product has two-wheel or all-wheel drive. They did it with the Alfa Romeo 159 sedan, and they do it now on the Maserati Quattroporte S and Ghibli S Q4 sedans. Car magazine says Marchionne "may not be categorically opposed to selling the rights," but he absolutely won't do it to any fiefdom in the Volkswagen empire, which would leave Audi a jilted suitor. Why is Sergio being so serious? VW Group CEO Ferdinand Piech first starting waving torches on the bridge between the two companies when he said Alfa Romeo could sell four times as many cars if Volkswagen owned it, then burned the bridge when it continued to publicize its desire to buy Alfa Romeo. VW followed that up by throwing salt on the land around the destroyed bridge with its aggressive pricing in Europe during the worst of the car sales slump there, which Marchionne said was causing a "bloodbath." VW's final flourish was to set the river itself on fire, when a press officer said Marchionne wasn't qualified to head the European Automotive Manufacturers Association (ACEA) and VW would quit the organization if he did take the top spot. That is why, putting it optimistically, Audi looks to have a grim chance of getting the Q2 and Q4 marques from the Italian. So long as he is in power, at least: Marchionne said he's walking away from the job in 2018. Audi might have a better chance bending the knee to, and generously rewarding, his successor. Featured Gallery Audi TT Offroad Concept: Beijing 2014 View 16 Photos News Source: CarImage Credit: Live images copyright 2015 Chris Paukert / AOL Government/Legal Audi Fiat Volkswagen Crossover Luxury Sergio Marchionne trademark volkswagen group