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.

Editors' Picks January 2022 | Ford Maverick, Jeep Grand Cherokee and more

This month, we awarded Editors' Pick awards to a number of totally redesigned, new models. Most notable of the bunch is the 2022 Ford Maverick. Ford took a chance on a new segment, and its execution is as close to perfect as we could hope for. The Hyundai Santa Cruz is a worthy competitor, though, and was also named an Editors' Pick. Also in this list, we have the redesigned Jeep Grand Cherokee. It's an excellent SUV, and it's only going to get better when the plug-in hybrid 4xe model hits the roads. In case you missed our previous Editors' Picks posts, here’s a quick refresher on whatÂ’s going on here. We rate all the new cars we drive with a 1-10 score. Cars that are exemplary in their respective segments get EditorsÂ’ Pick status. Those are the ones weÂ’d recommend to our friends, family and anybody whoÂ’s curious and asks the question. The list that youÂ’ll find below consists of every car we rated in January that earned an EditorsÂ’ Pick. 2022 Jeep Grand Cherokee Quick take: Jeep's midsize SUV hits it out of the park with the latest generation. We could stand to see some powertrain innovation, but the Grand Cherokee's premium proposition is sound. Score: 8.0 What it competes with: Honda Passport, Hyundai Santa Fe, Ford Edge, Chevrolet Blazer, Nissan Murano Pros: Highly capable, luxurious interior, choices aplenty Cons: Pricey, fuel economy From the editors Associate Editor, Byron Hurd — "Jeep did almost everything right with the redesigned Grand Cherokee. Its powertrain offerings are fairly unremarkable, but the new two-row 4xe will go a long way toward addressing that. It's an otherwise fantastic, modern, luxurious Jeep SUV." In-depth analysis: 2022 Jeep Grand Cherokee First Drive Review | 1 fewer row, 1 more touchscreen   2022 Ford Maverick Quick take: The Ford Maverick offers tremendous value, efficiency, incredibly well-thought-out packaging, plenty of storage, a fairly engaging drive and ease of use, all with the utility of a pickup bed. We like the hybrid, but the EcoBoost engine and FX4 package offer more capability. Score: 8 What it competes with: Hyundai Santa Cruz Pros: Very affordable, Hybrid fuel economy, compact size Cons: Tight backseat, FWD only Hybrid, no cruise control in base trim From the editors: Green, Senior Editor John Beltz Snyder — "The Maverick is simply a dynamite package. It's smart, useful, drivable, efficient, providing affordable utility in the underserved compact pickup segment.

2013 Audi S8

Italy To Monaco In Ingolstadt's Crushing Performance Saloon
I had an engagement a while back with the Audi RS5 Cabriolet in Monaco, and getting me from my lair in northern Italy by plane connection is an utter waste of time since the first flight is always to either Paris, Zurich, or Rome, three cities not at all on the way to Monaco. So I phoned Audi Italia about a quick loan of a car for the three-hour-ish drive to this event, and they were simpatici enough to propose that I keep whatever they gave me for two weeks. And what they gave me was a loaded Audi S8 with properly chosen 20-inch Dunlop SP Winter Sport treads attached.
This was about to be a much cooler two weeks than I had planned.