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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 S1 officially shows itself as 228-hp hot hatch [w/video]

We got the first leaked pics of the new Audi S1 Sportback five-door hot hatch yesterday, and as expected, Audi has unloaded the full details today, including confirmation of its S1 three-door sibling ahead of its debut at next month's Geneva Motor Show. The two cars are essentially identical aside from their door counts, and together, they represent a new entry-level rung into Audi's S car range.
The subcompact S1 is propelled by Audi's ubiquitous 2.0 TFSI four-cylinder, tuned here to produce 228 horsepower and 279 pound-feet with a six-speed manual transmission and all-wheel drive. The potent combo accelerates the S1 to 62 miles per hour in 5.8 seconds (5.9 seconds for the Sportback) and on to a top speed of 155 mph. Fuel economy is rated at an average 33.6 miles per gallon (40.3 mpg UK) in the UK cycle. The S also gets a completely different four-link independent suspension to replace the less sophisticated torsion beam setup found in the standard A1.
Styling also gets a bump in aggressiveness that befit the S1's performance upgrades. In addition to a new body kit with a lower front air dam and 17-inch wheels, the S1 comes standard with Xenon headlights, LED taillights and two new available exterior colors ­- Vegas Yellow and Sepang Blue. The interior gets combination leather and cloth sport seats, piano black trim and a retractable 6.5-inch color infotainment display.

Former Ferrari F1 chief could be new Lamborghini CEO

The word on the street in Bologna is that Lamborghini is in for a changing of the guard. Current CEO Stephan Winkelmann is tipped to step down after 14 years at the helm in Sant'Agata, likely to move to another role at Audi. And in his place, the German automaker is anticipated to appoint Stefano Domenicali. Domenicali was formerly the head of Scuderia Ferrari, rising through the ranks at Maranello to succeed Jean Todt as team principal in 2008. He resigned in 2014 to be replaced first by Ferrari US chief Marco Mattiacci and then by Marlboro man Maurizio Arrivabene as the team has struggled to find its form again. Shortly after leaving Maranello, Domenicali took up a new position at Audi, where he was rumored to be working on the company's anticipated foray into Formula One with Red Bull. But after that program was shut down in the wake of the diesel emissions scandal, Domenicali is now tipped to move back to Italy to take over the supercar business. Stefano would be the second Domenicali to head an Italian performance brand under the VW/Audi umbrella, joining Ducati CEO Claudio Domenicali (they not believed to be related). The move would also be a particularly emphatic gesture to Sergio Marchionne. The Fiat Chrysler Automobiles chief has previously lost top lieutenants to Volkswagen, most notably Luca de Meo, who headed up VW brand's passenger car marketing department before taking over at Seat. While previous Ferrari chiefs Todt and Montezemolo came up through the racing department, Marchionne assumed the chairmanship in Maranello and brought in outside talent instead. Meanwhile Winkelmann has been in charge of Lamborghini since 2005, when he was appointed by Audi to run the company it had just acquired a few years prior. Under the tenure of the German-Italian executive, Lamborghini sales have risen from 1,600 units per year to over 2,500 last year. The introduction of the forthcoming Urus crossover, birthed under Winkelmann's leadership, is expected to more than double that overall figure. Given his success in transforming Lamborghini, it isn't likely that the Volkswagen Group will simply show Winkelmann the door. Word has it that he'll receive another posting at Audi, potentially taking over the growing Quattro GmbH division in Neckarsulm. The division is responsible for all of Audi's RS models as well as the R8 – the latter of which Audi sells as many units as the entire Lamborghini division does in a year.