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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.

Finalists for 2014 Green Car of the Year announced

The list of finalists for the 2014 Green Car of the Year has been announced, and in a genuinely bizarre twist, there's only one hybrid and no electric vehicles among the five contestants, despite the arrival of cars like the BMW i3 and Tesla Model S. Taking the place of the EVs are a pair of diesels, repping a technology that last won a Green Car of the Year award in 2009, when the Audi A3 TDI took the title. No diesel was in the running for last year's award.
Naturally, both of the diesel finalists are fielded by the Germans - with BMW's 328d and Audi's A6 TDI getting the nod. In the case of the 3 Series, BMW installed a 2.0-liter, turbodiesel, capable of delivering 180 horsepower and 280 pound-feet of torque, while returning 45 miles per gallon on the highway. Audi and its larger, 3.0-liter, V6 turbodiesel produce quite a bit more grunt, with 240 hp and 428 lb-ft of grunt, but net a very impressive 38 mpg on the highway in the A6.
Finalists for this year's awards include two diesels, three gas-powered cars and a plug-in hybrid.

Wagons make a bit of a comeback, with new models, sales on the rise

Consider this an official invitation to hop on the wagon bandwagon. There's still tons of room because, well, it's a wagon (and market share is still extremely small). But according to new data, the segment is growing. According to a report from Bloomberg, using data from Edmunds.com, roughly 211,600 Americans purchased wagons in 2018. That is technically down from the 237,600 sold in 2017, but wagon sales in the U.S. are up 29 percent from where they were five years ago. It's also the third year in a row that wagon sales broke the 200,000 mark. The sales trends have been somewhat representative of the availability of wagons. New models have debuted during the past 5 years and therefore offer more opportunity at more brands to buy wagons. In addition to more modest cars such as the Volkswagen Golf Sportwagen, several luxury and performance brands are offering wagons today, such as Mercedes-Benz, Audi, Porsche, Jaguar, Volvo and Buick. (Bloomberg's headlines make the point that "crossovers are for the Kardashians," and wagons are just, well, classier.) This uptick in brand-name availability, as well as extremely well-executed design on most of the wagons currently available, has helped increase the segment's desirability. That, and its ability to better accomplish the same tasks at hand while standing out from the crossover and SUV crowd. Still, the posted numbers represent a small fraction of the total vehicles sold. According to the data, wagons only held a 1.4 percent market share in 2017, the segment's best recent year. Wagons hold a steadfast place in America's past, and they're writing an interesting new story. With the downturn in traditional cars, they may continue to create an unexpected narrative. Related Video: News Source: Bloomberg, Edmunds Audi BMW Buick Volkswagen Volvo Wagon station wagon