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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.

Volkswagen may 'carve out' Lamborghini to list on the stock exchange

FRANKFURT — Volkswagen is drawing up plans to set up Lamborghini as a more independent unit, and is discussing long-term supply deals that could make it easier to list it on the stock exchange, two sources familiar with the matter told Reuters. "Volkswagen is in the process of carving out Lamborghini, and to organize future supply and technology transfer deals," one of the sources familiar with the matter told Reuters. The Italian sportscar brand, which is currently a division of Audi, could be partially listed, with Volkswagen retaining a controlling stake, the first person familiar with the talks said. There is no formal decision to divest Lamborghini, a second source said, adding that the timetable of any deal remained unclear. "This is a first step which gives VW the option to list the unit further down the line," the second source told Reuters. A third source familiar with the discussions said the future of Bugatti, Lamborghini and Ducati was discussed during a supervisory board meeting last Friday. The possibilities for how to electrify the Lamborghini and Bugatti brands through partnerships and investors was discussed, the third source said. Bankers and potential cornerstone investors in an IPO have been approached by the carmaker, the sources said. Volkswagen declined to comment. Volkswagen Group's Chief Executive Herbert Diess on Wednesday said the carmaker will announce "important steps" about the company's future before the close of the year. Volkswagen is reviewing what role its high-performance brands Lamborghini, Bugatti and Ducati will play within the multi-brand carmaker as part of broader quest for more economies of scale, senior executives told Reuters. A global clampdown on combustion-engined vehicles has forced carmakers to accelerate development of low-emission technology for mainstream models, leaving Volkswagen managers struggling to find resources to electrify low volume sportscar models. Related Video:

Audi inaugurates new R8 production line at Neckarsulm

Of all the factories which the Volkswagen Group operates around the world, the Audi plant in Neckarsulm may not be the very largest, but it is among the most diversified. That's where Audi builds versions of the A4, A5, A6, A8 and Q7 lines. It's also been home to the R8, but now the German automaker has moved supercar production to a new facility just a few miles down the road.
Back in August, Audi stopped production of the R8 at its main Neckarsulm site and moved it to the new Böllinger Höfe site in Heilbronn, restarting production just three weeks later. The new assembly line brings together various workshops that had been scattered about the Neckarsulm complex under one roof, and will surely make production of the next-generation R8 that much smoother.
The Böllinger Höfe facility is about a quarter the size of the main Neckarsulm plant, and will also house a small-scale production line - similar, we gather, to what Audi subsidiary Lamborghini recently built in Sant'Agata Bolognese - and a massive, state-of-the-art logistics center with capable of handling 4,500 containers each day.