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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.

Dieselgate defeats Audi's Le Mans racing dynasty

Referring to what the automotive press has dubbed "Dieselgate", Audi's Chairman of the Board of Management Rupert Stadler announced that Audi is pulling out of the FIA World Endurance Championship by the end of the 2016 season. This means Audi will no longer compete in the 24 Hours of Le Mans. However, that doesn't mean Audi is through with competing on the world stage. Instead of fossil-fuel-powered prototype racing, Audi will now "focus on the things that will keep (it) competitive in the years ahead", namely Formula E. Having worked together previously with Audi tuner ABT and component manufacturer Schaeffler in Formula E, the company is now turning Team ABT Schaeffler Audi Sport into a fully factory-backed outfit. Audi's DTM efforts with the RS 5 DTM will remain untouched for the time being, and the company hasn't made a decision yet as to whether its World Rallycross Championship with the Audi S1 EKS RX quattro will continue. Audi has competed in Le Mans prototype racing for 18 years, during which it secured 13 Le Mans wins. Out of 185 races contested by Audi's LMP cars, they racked up an impressive 106 wins. Audi's victory in 2006 was the first with a TDI engine, and the first hybrid-engine win was claimed in 2012. From 2000 to 2008, Audi won nine consecutive American Le Mans Series titles. Related Video: News Source: AudiImage Credit: REUTERS/Regis Duvignau Green Motorsports Audi Green Automakers Diesel Vehicles Electric Racing Vehicles Formula E abt audi le mans schaeffler

Audi S3 starts at $41,400, A3 Cabrio rings up at $35,600 and A3 TDI priced from $32,600

Audi has released the official pricing info for the all-new A3 TDI Sedan, A3 Cabriolet and the S3 Sedan, and the news appears pretty good all around. As usual, none of the following prices include Audi's unspecified-for-now destination charges.
The big news is the S3, complete with 292 horsepower, a six-speed dual-clutch transmission and Quattro all-wheel drive. Prices start at just $41,100, which is a decent savings over the more powerful, 355-hp Mercedes-Benz CLA45 AMG.
The new A3 TDI sedan, meanwhile, has a starting price of just $32,600. While you'll be certain to save some money on fuel, you'll be doing so without Quattro all-wheel drive. Still, the improved economy of the 2.0-liter, turbodiesel four-cylinder isn't priced too steeply, relative to the gas-powered A3's $29,900 starting price.