1997 Audi A8 L 4.2 Quattro Silver on 2040-cars

Auto blog

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 spotted testing new S4 at the Nurburgring

Where there's smoke, there's fire. Only in this case, the smoke is the upcoming new Audi A4, and the fire is the S4 spotted undergoing testing in this latest batch of spy shots. Snapped in both sedan and Avant wagon forms while undergoing testing on and around the Nurburgring – where else? – the next-generation Audi S4 will of course be based on the new A4 that's anticipated to debut in Frankfurt this September. That means MLB Evo architecture and styling that takes a page out of the new TT's playbook. But in S4 trim, it'll be altogether more performance oriented. Expect an even more powerful version of the outgoing model's 3.0-liter supercharged V6, pumping out a good 340-350 horsepower to all four of its driven wheels. That power will help it keep pace with the new Mercedes C450 AMG Sport. It won't have to take on the new C63 AMG directly, though, as that'll be the job of the next RS4 that will slot above it. But since that model may never make it to US showrooms, this will stand as the flagship of the new A4 family as far as the American market is concerned. Related Video:

Volkswagen profit jumps as it warns of a cooling auto market

FRANKFURT, Germany — Volkswagen says its profits jumped 44% in the third quarter thanks to a more profitable mix of vehicles in its lineup but warned that global car markets are slowing more than expected and lowered its forecast for annual sales. After-tax profit rose to $4.42 billion (3.98 billion euros) as revenues rose 11% to $68.27 billion (61.42 billion euros). The sales margin of 7.8% exceeded the goal of 6.5-7.5% as vehicles bringing higher profits took a larger share of sales. The Wolfsburg-based automaker pointed to the headwinds facing the industry by saying that it expects "vehicle markets will contract faster than previously anticipated in many regions of the world." It said sales would be "on a level" with last year's record of 10.8 million vehicles. Previously it had expected a slight increase. The company said its profits would be in the lower end of its forecast range. Global automakers are facing a slowdown in sales amid disputes over trade and from pressure in the European Union and China to develop and sell low-emission vehicles that require heavy investment in new technology. Ford and Renault have issued profit warnings in recent days, while Daimler, maker of Mercedes-Benz luxury cars, lost money in the second quarter and is expected to outline a cost-cutting strategy for investors on Nov. 14. Volkswagen is leading the push into electric vehicles in Europe by launching its ID.3 battery-powered compact car at prices it says will make zero local emission vehicles a mass phenomenon. The company was able to increase earnings in the quarter despite an 18% rise in spending on research and development.