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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.

An Outback for architects | 2017 Audi A4 Allroad First Drive

There are crossovers – big SUV-like things that give people the commanding view of the road they crave so much – and then there are crossovers. Lifted wagons in the vein of the Subaru Outback are arguably the crossover archetype, but they've become the exception, not the rule. That's where the Audi A4 Allroad fits in. Like its predecessor, the 2017 Allroad is a rather good-looking alternative to a mid-size SUV. The A4 Allroad is again based on the lovely A4 Avant, a wagon that isn't sold in America. The Allroad has a slightly raised suspension compared to its overseas counterpart, slightly higher-profile rubber, standard two-tone paint, roof rails, fender flares, lower body cladding, and a grille with vertical slats to emphasize the rugged point. And for reasons that no automotive purist has ever been able to derive, the look totally works. You can have a two-tone Allroad in one of 13 colors with gray trim along the bottom and the fenders. Or, pay an extra $1,000 on top of the cost of metallic paint and you can opt for one of five monochrome color schemes. In either case, you'll get a handsome, aggressive front end; 18-inch five-spoke wheels; standard Xenon or optional LED lighting up front; and LED lighting in the rear. The rear blinkers have a standard swiping effect borrowed from the R8, and the same sequential motion is applied to the front turn signals on models with the optional all-LED headlights. It's a party trick, but a neat one . We'd be hard pressed to think of an interior that Audi has screwed up recently, and the latest A4 has a particularly good one that translates well to the Allroad. No matter the trim you choose, you'll get your choice of dyed leather, including the requisite brown to best showcase the Allroad's rugged intentions. The level of gadgetry and pricing rises as you work your way up the trim tree – from Premium, to Premium Plus to Prestige, with the sweet spot in the middle – and it more or less mirrors that of the A4. Opting for the Technology Package on Premium Plus models gets you Audi's Virtual Cockpit instrument cluster, a fully configurable gauge package that sets the standard for info display in the industry. (It is so choice. If you have the means, we highly recommend picking one – er, it – up.) Here, the optional advanced dash is paired with an 8.3-inch center display, which is equally intuitive and responsive.

Audi A7 getting nip and tuck

It's been less than two years since the Audi A7 first went on sale in the US, but European buyers have been able to enjoy the sleek and stylish hatchback for twice as long. As such, Audi is preparing to give its A7 a mild refresh with tweaked exterior styling, but we're also expecting some of the features found in the all-new 2015 Audi A8 to possibly trickle down to the A7.
From what we can tell in these spy shots, the A7 is getting a minor facelift that includes a restyled front fascia and new headlights, which will likely boast Audi's new Matrix LED system. At the rear of the car, similar changes have been made with a fascia that now gets integrated outlets and different taillights that have a Lamborghini-like display.
Not apparent in these images - but still a good bet for production - we'd expect to see the new A7 get some of Audi's updated engines or new driver assist technologies. No definite word as to when we'll be seeing the refreshed A7 in person, but considering how close to production ready as this car seems to be, our bet is on the upcoming Geneva Motor Show.