2010 Audi S5 Prestige 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.

Win an electric car and celebrate Earth Day

Autoblog may receive a share from purchases made via links on this page. Pricing and availability is subject to change. No donation or payment necessary to enter or win this sweepstakes. See official rules on Omaze. Enter to win this giveaway or any other Omaze experience now through April 23, 2021 and receive 500 extra entries into any campaign plus a chance to win $10K with code GOGREEN500. Simply add the discount at checkout. Whether you like it or not, there will come a day when most, if not all of us, will be driving electric cars. For some of us that day can't come soon enough, and in honor of Earth Day we've put together a list of our favorite car giveaways so you can save some green while being green.  Win a 2021 Porsche Taycan Turbo S and $20,000 - Enter Here If there’s one thing Porsche is good at, itÂ’s making fast, beautiful cars, and the Taycan Turbo S is no exception. Making 750 horsepower, 774 lb-ft of torque and a top speed of 161 miles per hour, punching the accelerator will surely throw you back in your seat. In fact, its 0-60 time of 2.6 seconds matches that of the quickest Porsche 911 ever made, the Turbo S. The difference between this Taycan Turbo S and that 911 Turbo S, of course, is that the only reason youÂ’ll ever need to stop off at a gas station is to fill up on snacks. That and the fact the Taycan doesn't actually have a turbo anywhere in the car. We wouldnÂ’t be reaching for a bag of FlaminÂ’ Hot Cheetos, though, because this incredibly comfortable leather interior is immaculate, and weÂ’d hope to keep it that way. Enter here for a chance to win this prize worth $220,000. Win a Himalaya Land Rover Defender 110 EV and $20,000 - Enter Here The Land Rover Defender is an icon: an intense, luxurious off-roader that turns heads and can crawl up nearly anything. The problem? For the past 20+ years it hasn't been available in the United States and it's never been what youÂ’d call environmentally friendly. But this Defender is different. ItÂ’s vintage, restored by Himalaya and itÂ’s all-electric. At 275 horsepower, you wonÂ’t be thrown back in your seat, but the 406 lb-ft of torque helps make this an incredibly capable rock crawler.

Audi kills off its 420-hp four-cylinder engine project

Audi's supercar-slapping, fire-breathing four-cylinder concept engine will remain just that, with Autoblog confirming that it has been internally killed off. Speaking at the launch of the TT RS, the engineering boss of Audi's Quattro GmbH division, Stephan Reil, said the Volkswagen Group had stopped all development of the 420-horsepower, 2.0-liter four it showed in the 2014 TT Quattro Sport Concept car (above). Despite previous assurances that Quattro had roles for both the EA888-based engine and Audi's wildly charismatic 2.5-liter, five-cylinder motor, post-Dieselgate reality has killed the smaller engine. "The 400-horsepower EA888 engine is dead," Reil said. The EA888 engine was conceived and developed by the same man behind AMG's powerhouse 2.0-liter four. Friedrich Eichler left AMG to become the Volkswagen Group's gasoline engine development go-to guy, and he was confident the 420-hp engine could be turned into a production car quickly, as was then-Audi development boss, Ulrich Hackenberg. It was even suggested that because the EA888 engine family bolted straight into the Volkswagen Group's ubiquitous MQB small-car architecture, the little powerhouse could be cheaply and quickly dropped into any of the company's cars that needed an image boost. Since then, Quattro has elevated the five-cylinder motor, switching it to an all-alloy block with a magnesium oil pan to cut down its weight while boosting its power and torque levels. Where the four-cylinder engine was shown with 420 hp and 332 lb-ft of torque, the production version of the TT RS's new five-cylinder engine totes 400 hp and 354 pound-feet of torque. The smaller engine's proponents claimed a 0-62 mph acceleration figure of just 3.7 seconds for the concept TT that carried it, and it might not be a coincidence that the all-new TT RS claims exactly the same figure. The 2.0-liter motor had a torque peak that arrived at 2,400 rpm and began to taper off at 6,300 rpm, while its power apexed at 6,700 rpm, thanks in part to a turbocharger that could feed it up to 1.8 bar of air. Flip to the TT RS' data and you're looking at more torque at lower revs and a touch less power, but at higher revs. That's not a lot of wriggle room for the concept engine to operate, especially when the perceived value of the five-cylinder engine is higher than the four, and the four's development and production costs would be higher than the five's.