Audi Quattro A6 1997 / Station Wagon / Matic 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.

Sunday Drive: Taking a gaze into the automotive crystal ball

Mankind has long been fascinated by the future. So it makes sense that this past week's top stories were all about cars, trucks, and SUVs that won't be hitting the market until the 2019 model year. And right at the top of the list is the Ram 1500. We've come to know Ram as the truck maker that styles its pickups with cues cribbed from big rigs, but that look has slowly evolved over time into something uniquely its own. The next Ram 1500 continues this trend, with a newly refined look that we can't wait to see in person. Up next is the 2019 Chevy Silverado. Pickup trucks have been, continue to be, and will remain the best-selling vehicles in America. And General Motors is a leader in the field, with two distinct offerings with which to entice buyers, one from the bread-and-butter Chevrolet brand and one wearing the slightly more upscale GMC badge. The Chevy looks to get LED lighting elements for 2019, which ought to keep the truck from looking dated when compared to the Ford F-150 and the previously mentioned Ram 1500. From there we move past pickup trucks and into SUVs and sedans. The 2019 Jeep Cherokee looks to get toned down a bit with its next refresh, and the '19 BMW 3 Series continues its slow evolutionary journey at the top of its aspirational sales pedestal. Finally, spy shots give way to official production reveals for the 2019 Audi A7 and Polestar 1. This pair of European luxury cars won't compete with one another – one is a rakish hatchback and the other a sports coupe – any further than for the eyeballs of our readers, but both proved popular enough to merit inclusion in our weekly roundup. As always, tune in to Autoblog next week for a front-row seat to all the happenings worth following in the automotive industry. 2019 Ram 1500 spotted without the classic crosshairs 2019 Chevy Silverado spied with new LED accents 2019 Jeep Cherokee reveals a much more normal face 2019 BMW 3 Series spy shots reveal production lights, new interior details 2019 Audi A7 revealed: More torque, refined styling Polestar 1 First Look | The 600 horsepower hybrid Scandinavian Green Audi BMW Chevrolet Jeep RAM Volvo Truck Hatchback SUV Future Vehicles Hybrid Luxury Performance Sedan sunday drive polestar 1

California orders VW Group to fix 15,000 3.0L diesel vehicles

The California Air Resources Board has ordered Volkswagen to come up with a plan for repairing approximately 15,000 cars sold in the state that contain illegal software that may circumvent emissions testing. In a letter sent to Volkswagen Group of America and several company brands, CARB's chief emissions officer says the company has 45 business days to submit a recall plan that will fix affected Volkswagen, Audi, and Porsche models equipped with 3.0-liter diesel engines sold in the state since 2009. "We expect full cooperation in this investigation so this issue can be addressed expeditiously and appropriately," wrote Annette Herbert, chief of emissions compliance. The violations first surfaced in a meeting last week between California regulatory officials and Audi executives. In that meeting, Audi admitted certain versions of A6, A7, A8, Q5 and Q7 models contained three previously undisclosed auxiliary emissions control devices. An auxiliary device is not necessarily the same as a defeat device that intentionally cheats on emissions testing, but Audi and other affected brands hadn't disclosed the existence of the AECDs, which is a violation of the state's health and safety code. Had they been disclosed prior to vehicle certification, there's a possibility CARB may have approved use of the devices. In a statement Wednesday, CARB did not elaborate on whether it considered the three devices mere AECDs or defeat devices. When Volkswagen submits its plan to fix the cars, CARB says it must include an assessment of how the repairs will affect fuel economy, performance, drivability, and the safety of each vehicle. The 15,000 cars affected in California are part of roughly 85,000 nationwide which contain the affected 3.0-liter engines. The US Environmental Protection Agency may soon address how it expects Volkswagen to fix the remaining cars. "EPA and CARB are working closely and continue to investigate following the admission by Volkswagen that the issues EPA identified in the November 2nd NOV (Notice of Violations) extend to all 3.0-liter diesel Volkswagen, Audi, and Porsche vehicles," an agency spokesperson said in a statement Wednesday. "EPA will take all appropriate enforcement action." The 3.0-liter developments, of course, come on top of the company's September admission that 482,000 diesels equipped with 2.0-liter engines contain defeat devices that detect emissions testing and alter the cars' performance.