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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.

Lots of new cars were unveiled in Munich this week. Here's what you might've missed

The 2021 Munich Auto Show is happening this week and due to ongoing corporate travel restrictions, we remained firmly planted on this continent. So, although we can't tell you exactly what it's like inside the futuristic new Mercedes EQE electric sedan or fully appreciate the funky Volkswagen ID.Life concept, there's no shortage of details and analysis to provide.  Obviously, as Germany's premier auto show in 2021, the cars unveiled were primarily from the German brands. We also focused mostly on the cars that might actually make their way to the United States, or at least inspire those that will.   2023 Mercedes-Benz EQE is an electric alternative to the E-Class While the EQS paved the way for Mercedes' electrified future, much like the S-Class before it, the EQE stands to be the car that will move in far greater numbers -- much like the E-Class before it. Mercedes-Benz EQE 350 View 12 Photos   Mercedes-Maybach EQS Concept shows SUV future of the flagship brand Opulence will still have a place in an electrified future, as Maybach gets into the EQ game with a grand electric SUV. Mercedes-Maybach EQS Concept View 4 Photos   Volkswagen ID.Life concept previews the city car's high-riding EV future Well, isn't this adorable? Though perhaps a tad derivative of the Honda E, Volkswagen's blocky little crossover EV nevertheless represents a handsome new direction for VW design. We like this better than the rounded looks of the current ID.3 and ID.4.  2021 Volkswagen ID.Life concept View 20 Photos   BMW i Vision Circular is a 100% recycled and recyclable hatch Behold, the next BMW 3 Series! Just kidding. Besides this, BMW displayed cars in person for the first time that it had previously only unveiled on the interwebs, including the new 2 Series and revised iX3. It also unveiled some bikes. BMW i Vision Circular Concept View 63 Photos   Audi's GrandSphere concept was designed as a road-going private jet Does Audi know what a sphere is? Cause this isn't anything like one. Still, it's quite a handsome thing, and as one of three Sphere-branded concepts, previews the next direction of Audi design (which is pleasantly reminiscent of two-decade-old Mazda design). No complaints here. 2021 Audi GrandSphere concept View 26 Photos   Porsche Mission R is a 1,000-horsepower electric monster Just like the Mission E previewed the Taycan, this apparently previews another future car.

Audi re-illuminates Sport Quattro with Laserlight concept for CES

Automakers typically spend months working on a concept car, then unveil it at a car show and move on to the next. But Audi has demonstrated a propensity at refining the same concepts and bringing them back for more. Just look at how many time Audi iterated its E-Tron concept, and how many diesel R8s it toyed with. It brought the Italdesign Parcour out of retirement and rechristened it the Audi Nanuk, and it's been doing the same with the Quattro concept for the past several years. The German automaker rolled out the first Quattro concept back in 2010, and followed up with the reborn Sport Quattro concept less than a year ago. And now it's preparing to unveil yet another.
Called the Sport Quattro Laserlight concept, this time it's not as radical a departure from the Sport Quattro concept as that was from the first Quattro concept. In fact, there's really only one vital difference. That'd be the laser headlights "that leave all previous systems in the dark," according to the press release below. The system uses matrix LEDs around the outside of the element as low beams, and lasers on the inside for high beams. Measured in mere microns, the laser diodes are significantly smaller than LEDs, while lighting up the road ahead for nearly half a kilometers (1,640 feet), providing twice the lighting range and three times the brightness of LED high beams.
Otherwise the concept car you see here and which Audi will display at the Consumer Electronics Show in Las Vegas next week is essentially the same as the one it showed in Frankfurt this past September. It's got the same measurements, wearing the same CFRP bodywork, with the same interior and the same 700-horsepower hybrid powertrain, only the yellow exterior has been repainted Plasma Red and the black interior redone in a more low-key Slate Grey, as you can see from the high-res image gallery above.