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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 R8 V10 Plus vs. Renault Clio Cup racecar will make you go hmmm...

Match up a hot hatch with a supercar of the same vintage, and we'll tell you who will win every time. It's easy, really, as the supercar invariably features a more advanced suspension, stickier tires and most importantly, more power. What if the hot hatch is race prepped, though?
In that particular case, all bets are off. A circuit-tuned suspension, a stripped-down cabin, an ultra-quick sequential transmission and the greatest equalizer of them all, slick tires, are all that's needed to turn the typical hot hatch into a proper dragon slayer.
Perhaps seeking to prove this, Evo has put together an interesting head-to-head between the Audi R8 V10 and a race-prepared Renault Clio Cup. Host Dickie Meaden takes us through each car, highlighting the bits and bobs on both sides which should make this a tight competition. And boy, is this one tight.

Volkswagen reportedly to name Matthias Muller CEO

Porsche chief executive officer Matthias Muller is expected to be named CEO of Volkswagen AG, the Wall Street Journal and other sources reported Thursday morning. Muller, 62, has led Porsche since Oct. 1, 2010, and jumpstarted the sports-car brand's expansion around the world. He replaces Martin Winkerkorn, who stepped down Wednesday amid the company's worsening diesel scandal. At least three more executives are also expected to be fired, including Volkswagen's US chief and the heads of Audi and Porsche research and development. Both brands are divisions of VW. A US spokesman wouldn't confirm the reports. An official announcement is expected at VW's board meeting on Friday. Muller's ascension caps a stunning week of turmoil for Volkswagen, which manipulated software to make its diesel-powered vehicles appear cleaner during testing that they are in real-world driving. The charges were revealed last week by the EPA, which cited the work of researchers at West Virginia University. About 482,000 vehicles are affected in the United States, which will be subject to recall, and VW estimates about 11 million of its vehicles around the world have the rigged software. The well-regarded Muller was viewed as a front-runner for the job even before Winterkorn stepped down. Before helming Porsche, he oversaw all vehicle projects globally for VW from 2007-2010. Previously, he was in charge of the Audi and Lamborghini product lines, and earlier in his career was responsible for the Audi A3 program in the 1990s. He joined Audi in 1977. He's trained as a toolmaker and studied information technology in Munich. His last name is sometimes spelled Mueller in English. Muller faces immediate challenges as he takes over VW's sprawling 78-year-old industrial empire, including recalls and regulatory actions around the world. In the US alone, the company faces a fine of up to $18 billion. VW, an industrial symbol of Germany, is also far larger than any unit Muller has run in his career. While Porsche sold 189,849 vehicles in 2014 globally, it's one of many VW brands. Collectively they sold 5.04 million vehicles through the first six months of this year, making Volkswagen the world's largest automaker. Related Video: