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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.

Trump calls Germans 'very bad,' vows to stop their car sales in US

TAORMINA, Italy -Talks between President Trump and other leaders of the world's rich nations at the G7 summit on Friday were expected to be "robust" and "challenging" after he had lambasted NATO allies and condemned Germans as "very bad" for their trade policies. Trump's confrontational remarks in Brussels, on the eve of the two-day summit in the Mediterranean resort town of Taormina, cast a pall over a meeting at which America's partners had hoped to coax him into softening his stances on trade and climate change. According to German media reports, Trump condemned Germany as "very bad" for its trade policies in a meeting with European Commission President Jean-Claude Juncker, signaling he might take steps to limit sales of German cars in the United States. "The Germans are bad, very bad," he reportedly told Juncker. "Look at the millions of cars that they're selling in the USA. Horrible. We're gonna stop that." White House economic adviser Gary Cohn on Friday confirmed the reports. "He said they're very bad on trade, but he doesn't have a problem with Germany." Cohn said Trump had pointed out during the meeting that his father had German roots in order to underscore the message that he had nothing against the German people. Trump's spokesman Sean Spicer said Trump had "tremendous respect" for Germany and had only complained about unfair trade practices in the meeting. Juncker called the reports in Spiegel Online and Sueddeutsche Zeitung exaggerated. The reports translated "bad" with the German word "boese," which can also mean "evil," leading to confusion when English-language media translated the German reports back into English. "The record has to be set straight," Juncker said, noting that the translation issue had exaggerated the seriousness of what Trump had said. "It's not true that the president took an aggressive approach when it came to the German trade surplus." "He said, like others have, that (the United States) has a problem with the German surplus. So he was not aggressive at all," Juncker added. In January, Trump threatened to slap a 35 percent tax on German auto imports. "If you want to build cars in the world, then I wish you all the best. You can build cars for the United States, but for every car that comes to the USA, you will pay 35 percent tax," he said. "I would tell BMW that if you are building a factory in Mexico and plan to sell cars to the USA, without a 35 percent tax, then you can forget that." Last year, the U.S.

US-bound Audi A3 Sedan spied testing

As the Audi A3 sedan gets closer to its debut, Audi has camouflaged prototypes to take it on the streets for final testing. Last time we saw the A3, it was testing almost in the buff, but it was on a closed track so our spy shooters were kept at quite a distance.
Now that the newest Audi sedan is testing on public roads, our latest batch of spy shots gives us a more detailed look at the entry-level luxury player despite the swirly camo. Except for the oversized wheels and the fancy exhaust outlets and door mirrors, the production version of the car should look almost identical to the A3 sedan concept we saw in Geneva a couple years ago. Some of the details we can see include a good-sized panoramic roof that stretches almost halfway into the rear passenger space and signature Audi LED-accented headlights and taillights.