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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.

Audi A1 now testing after S1 Geneva debut

Audi showed of its new S1 hot hatch to the public at the Geneva Motor Show last week, but the Four Ringed brand isn't done tweaking the smallest member of its lineup. Here are spy shots of an upcoming refresh of the standard A1.
The camouflaged model on display here appears to be the three-door model. From what we can discern, it seems the A1 is going to look a lot more like the S1 after the revisions. The headlights and taillights are more like the new performance model than the current standard car. Unlike the S model, the facelifted version has a different front bumper with reshaped foglights and a slightly altered design.
A release date for the refresh hasn't been announced yet, but regardless it probably won't be coming here. Audi is already aiming the A3 at young, American buyers. The little A1 just doesn't fit with that strategy.

2015 Audi RS7 Dynamic Edition is a pretty car for a pretty penny

Making its world debut at the New York Auto Show, and commanding a $40,250 premium over the base RS7, is Audi's new 2015 RS7 Dynamic Edition that arrives with an MSRP of $146,045 (including destination and delivery). The range-topping hatchback is designed to showcase Audi's exclusive program, which allows customers to choose choose from the automaker's long list of options and then take the customization one step further with bespoke paintwork, upholstery, bodywork and wheels.
The interior features Black Valcona leather seats with Crimson Red honeycomb stitching, and matching Crimson Red seat belts. The contrasting color is carried through to the stitching on the dashboard, center armrest, door panels, shift boot and center console. Carbon fiber inlays provide additional contrast. The exterior is offering in four colors (Ibis White, Suzuka Gray metallic, Daytona Gray pearl and Phantom Black pearl), with each arriving with performance-oriented DRC suspension (with three-stage adjustable dampers), 21-inch Gloss Black wheels, Tornado Red painted brake calipers and sport exhaust. A carbon fiber front splitter, rear diffuser and carbon fiber engine cover complete the package.
Like the standard RS7, the Dynamic Edition arrives with a twin-turbocharged 4.0-liter V8 rated at 560 horsepower and 516 pound-feet of torque. With an eight-speed automatic transmission, running through Audi's Quattro permanent all-wheel drive and a sport differential, the four-passenger vehicle will crack the 60 mph acceleration benchmark in a reported 3.7 seconds - and, thanks to cylinder-on-demand technology, it avoids a gas-guzzler tax. The RS7 Dynamic Edition arrives at dealerships in early summer.