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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.

Next Audi R8 seen and heard in this spy video

A few weeks ago, our clandestine spy photographers brought home the first good look at the next-generation Audi R8. We were all pretty stoked.
Seemingly following the game plan of the recently shown Audi TT, the next R8 looks to be an evolutionary update on a supercar form that pretty much everyone loves.
Today, the same shooters that snapped the car in stills have delivered some pretty compelling moving pictures of the thing. Captured both in some less-than-inspiring around-town traffic situations and out on the Nürburgring, the video delivers our first taste of the new R8's auditory splendor. Well... a taste of it, anyway.

Investors storm Volkswagen with $9 billion in lawsuits

Volkswagen's investors are latest group to take up pitchforks against the embattled automaker, and they're seeking $9 billion in damages, Reuters reports. The investor lawsuits were filed in a court in Braunschweig, Germany, near Volkswagen's Wolfsburg headquarters. On Monday, the first business day following the anniversary of the emissions revelations, the court received 750 lawsuits alone. All told, about 1,400 lawsuits have been filed. The largest single claim totals $3.7 billion and was filed more than six months ago. The lawsuits stem from complaints that Volkswagen didn't divulge information on the cheating software to investors quickly enough. Volkswagen has said that it hasn't broken any capital market laws. The $21.5 billion the company set aside to weather the storm may not be enough. The consumer fix is estimated to run the company $14.7 billion, either through buybacks or a fix that still seems unclear. In addition to the lawsuits, Volkswagen CEO Matthias Mueller confirmed that Audi boss Rupert Stadler is under investigation regarding the scandal. Mueller refused to give further details, but this shouldn't come as a surprise to anyone. Audi has admitted that its 3.0-liter V6 was equipped with the same emissions-cheating software as the 2.0-liter four-cylinder diesels. Stefan Knirsch, Audi's head of development, has been suspended as part of the overall investigation. Knirsch took over duties after his predecessor quit. Knisch was previously head of engine development at Audi. Related Video: News Source: Reuters Green Hirings/Firings/Layoffs Audi Volkswagen Emissions Diesel Vehicles vw diesel scandal