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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.

2014 Audi SQ5 ditches diesel, still packs a punch

Over in Europe-land, the Audi SQ5 is a diesel-powered monster capable of sending a whopping 479 pound-feet of torque to its wheels. Naturally, this beast isn't coming to the States, but that doesn't mean we're missing out on the whole SQ5 experience altogether. At the Detroit Auto Show this week, Audi is debuting a new gasoline-powered version of the hot crossover, and while it's not quite the oil-burning dreamboat we've lusted after from afar, we certainly wouldn't kick it out of bed.
Instead of a diesel, we get a boosted version of Audi's supercharged 3.0-liter V6, good for 354 horsepower and 346 pound-feet of torque. Running through an eight-speed automatic transmission, the SQ5 will reportedly be able to fire off 0-60 times in the low-five-second range and will top out at an electronically limited 155 miles per hour. Suspension upgrades are on hand to improve road-going prowess, but also lower the Q5's stance a bit, too.
Because this is an S model, there are plenty of visual upgrades on hand, including a more aggressive front fascia, 20-inch wheels and some pretty new colors including Estoril Blue and Panther Black. Interior upgrades like Alcantara trim and aluminum brightwork add to some sportiness from the cockpit view, as well.

VW CEO lost his job over buggy software that delayed new models

It says a lot about the state of the auto industry and where it's going that software problems have cost the CEO of a carmaker his job. Volkswagen ousted Herbert Diess as chief executive officer after severe software-development delays set back the scheduled launch of new Porsches, Audis and Bentleys. This was untenable considering buggy software postponed the debut of VW’s initial rollout of ID models, and customers are still having to drop off their cars at the dealer for updates the company has struggled to make over the air. Sure, Diess also didnÂ’t do enough to make allies and became increasingly isolated due to his hard-nosed leadership style. In his push to transform the company into an electric-vehicle leader, he repeatedly clashed with labor leaders by warning VW was losing out to Tesla and needed to cut thousands of jobs. But failures at the carmakerÂ’s software unit Cariad ultimately eroded DiessÂ’s support from the powerful Porsche and Piech family that calls the shots. Back in December, VW overhauled its management board, stripping Diess of some responsibilities while tasking him to turn around Cariad. While thereÂ’s been a lot of re-arranging since then, Diess didnÂ’t manage to make the issues go away. Discord at Cariad has pushed back the rollout of important new models including the electric Porsche Macan, a high-volume sport utility vehicle for the division thatÂ’s planning an initial public offering in the fourth quarter. AudiÂ’s new line of Artemis EVs has been delayed by around two years to 2027. And VWÂ’s ultra-luxury brand Bentley may not be able to go all-electric by the end of this decade as planned because of the software issues, Automobilwoche reported earlier this month. “Taking over the ship at Cariad seems to have been DiessÂ’s downfall,” said Matthias Schmidt, an independent auto analyst based in Berlin. VWÂ’s solutions to challenges tend to reflect its status as an industrial behemoth: itÂ’s able to throw lots of money and people at its problems. But modernizing the company for the digital age is going to take bringing in talent and building skillsets outside its traditional zones of expertise. Drivers increasingly demand intuitive user interfaces and services that could create new revenue streams, if done correctly. “Software is the key to the future,” TeslaÂ’s Elon Musk tweeted when one of his followers asked about VW switching CEOs. Diess certainly didnÂ’t lack ambition.