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Audi moves to patent electric Quattro and active-shutter wheels

Audi might have a few tricks up its sleeve for the coming years, with the Brits at Autocar uncovering a pair of patent filings made by the German luxury brand. The first is something we've seen before - wheel flaps - while the second is an evolution of one of Audi's trademark technologies.
We last saw wheel flaps on the Ford Atlas Concept in 2013, but the futuristic fuel-saving tech has so far failed to arrive on a production car. Audi may be seeking to change that, patenting the flaps that open and close automagically based on airflow. They can also open if the brakes get too hot.
The second patent is an evolution of Audi's Quattro all-wheel drive. The new AWD system uses an electrically driven rear axle and wheel sensors to figure out when and at which corner the car might lose traction, and is targeted largely at hybrid offerings, which is a field Audi has only recently dipped its toe into.

VW Group to split brands under four holding companies

The Volkswagen Group is planning a tremendous shift in its internal structure that will decentralize operations by splitting its 12 brands into four different holding companies. Here's the breakdown. Things will be split logically, considering the inter-sharing of parts, platforms, and engines. The Volkswagen brand, Seat, and Skoda make up a passenger vehicle division led by former BMW man Herbert Diess. Audi, which is tightly intertwined with Lamborghini and motorcycle manufacturer Ducati, will be managed by current Audi exec Rupert Stadler. Porsche and Bentley, which are already quite close, will be joined by Bugatti and run by Matthias Mueller. Finally, a commercial vehicles division will include Volkswagen Commercial, Scania, and Man. Former Daimler exec Andreas Renschler will take care of the big vehicles. The massive move, according to Automotive News Europe, is part of an internal VAG effort to move away from the structure established by ousted Chairman Ferdinand Piech, who favored a compact, but highly centralized, management structure to oversee the independent actions of the company's brands. Criticism of Piech's arrangement stemmed from the company's slow responses to changes in the market, ANE reports. The new structure should make for a more efficient, streamlined company that's better able to make crucial decisions. What are your thoughts? Should VAG decentralize, or did Piech have the right idea? Have your say in Comments.

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.