2014 Audi 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.

Notes and notations on the 2014 Rolex 24 at Daytona [w/video]

This year is the 52nd edition of the Daytona 24 Hours. The 2014 Rolex 24 at Daytona is also the first race of the year in the brand new TUDOR United SportsCar Championship (TUSCC) With the merger of the American Le Mans Series and Grand-Am Rolex Sports Car Series rewriting and revising the rules of American sports car racing right up until yesterday, we've made the journey to an intermittently wet and constantly freezing Daytona Beach, Florida with Audi to watch the new R8 LMS and every other competitor explore the limits of those rules on the track.
With a ton to cover - and a couple of videos below to watch, including some slo-mo qualifying footage and a hot lap in an R8 LMS - let's not waste time with chit-chat, eh?
Quick things to know about the classes and the leader-light system:

BMW says SUVs killed the sports car market

In many ways, we're living in a golden age of automotive performance. After all, it's possible to show up at a Dodge dealer, hand over about $60,000 and storm away with a 707-horsepower Challenger Hellcat. Or for those who prefer a touch more luxury, the BMW M4, Mercedes-AMG C63 and latest Cadillac ATS-V offer between 425 and 503 horsepower, depending on your pick, with a bit more poshness. However, none of these powerful vehicles fit the classic definition of a two-place, droptop sports car, and according BMW head of sales Ian Robertson, that's because the segment is very much in the doldrums.
According to Robertson, two factors seriously wounded the classic sports car market. First, the global economic crisis of a few years ago put a serious hurt on sales, according to Bloomberg. Further worsening the situation, the boom in popularity of luxury SUVs and crossovers in the past few years hasn't allowed for much recovery. Even car-hungry China hasn't helped much because of the smog in many cities and preference among some of the very rich there to be chauffeured.
Combined, Audi TT, BMW Z4 and Mercedes-Benz SLK sales peaked around 114,000 units a year in 2007, but they are only expected to reach 72,000 annually by the end of the decade. Robertson is pretty pessimistic about the market's comeback too. "Post-2008, it just collapsed. I'm not so sure it'll ever fully recover," he said to Bloomberg.