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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 reveals driver lineup and livery for Rolex 24 at Daytona

Audi has announced driver lineups for its customer teams running the R8 LMS GTD in this year's Rolex 24 at Daytona. The Rolex 24 is the first event for the inaugural season of the new United SportsCar Championship series, which merges the old Grand-Am Series with the American Le Mans Series. The new series kicks off January 25.
Flying Lizard Motorsports, which has traditionally been known for repping the Porsche 911, will campaign a pair of R8 coupes, while GMG Racing, Paul Miller Racing and Fall-Line Motorsports will run one car each. A number of drivers on each team are Audi Sport factory drivers, hot shoes like Oliver Jarvis for Fall-Line and Filipe Albuquerque and Dion von Moltke for Flying Lizard, while there are also a few Audi Sport customer drivers.
"We have a fantastic group of racing partners and drivers this season and look forward to defending last year's Daytona win," said president of Audi of America, Scott Keogh. "The successes of the R8 in endurance racing are a testament to the engineering found in every Audi on the road today."

Audi A3 named 2014 World Car of the Year

As usual, the second press day of the New York Auto Show was kicked off by the World Car of the Year Awards. Rather than fluff things up, we'll cut right to the chase: top honors go to the brand-new Audi A3, which bested the Mazda3 and BMW 4 Series for the all-important award.
Of course, the wonderful thing about the World Car awards is that there isn't just one big announcement - other honors are given out for specific categories. Here are the other winners from this year's ceremony:
World Green Car of the Year: BMW i3