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Audi moves to patent electric Quattro and active-shutter wheels

Audi might have a few tricks up its sleeve for the coming years, with the Brits at Autocar uncovering a pair of patent filings made by the German luxury brand. The first is something we've seen before - wheel flaps - while the second is an evolution of one of Audi's trademark technologies.
We last saw wheel flaps on the Ford Atlas Concept in 2013, but the futuristic fuel-saving tech has so far failed to arrive on a production car. Audi may be seeking to change that, patenting the flaps that open and close automagically based on airflow. They can also open if the brakes get too hot.
The second patent is an evolution of Audi's Quattro all-wheel drive. The new AWD system uses an electrically driven rear axle and wheel sensors to figure out when and at which corner the car might lose traction, and is targeted largely at hybrid offerings, which is a field Audi has only recently dipped its toe into.

New Audi Allroad Shooting Brake concept images leak out, next TT previewed?

The Detroit Auto Show media preview kicks off on Monday, which means the time is just about ripe for previously embargoed images and information to start leaking out onto the web in a major way. Case in point is this Allroad Shooting Brake from Audi, a seemingly close-to-production vehicle that may foreshadow the styling of the upcoming Audi TT, or hint at the looks of a Q1, or both.
The TT bit may seem far fetched, but we do know that Audi has used a small wagon concept to preview the design of an upcoming TT before - back in 2006 before the release of the gen-two car. We also fully anticipate the Q1 to be breaking cover sooner rather than later, so the safe money is that the concept closely resembles what that production vehicle will ultimately look like, though perhaps with a bit more height overall.
And, frankly, be it a TT or Q1 or both, we like what we're seeing. Sharp character lines on a rounded body form follow the idiom of the current TT rather nicely, while the big-wheels-at-all-corners stance plays into the sporting character we'd expect from any small Audi. Inside, we see the same Virtual Cockpit, MMI controller, and vents that we recently took in at CES, though with a slightly different steering wheel (with the starter button built right in). Tidy work here, too.

Audi builds 5-millionth vehicle with Quattro

Quattro, the trademark name Audi has put on its all-wheel-drive system engineered for passenger vehicles, recently celebrated its five-millionth installation. The driveline has been offered in more than 140 different vehicles since its introduction more than three decades ago.
The all-wheel-drive technology made its world debut at the 1980 International Geneva Motor Show, beneath the floorpan of the Quattro Coupé, a low-volume two-door. It didn't take consumers long to embrace Audi's innovative approach. While most four-wheel-drive systems at that time utilized heavy transfer cases or second cardan shafts, Quattro was virtually tension-free, light, compact and efficient. Most importantly, enthusiasts found it was especially suitable for sports cars.
Today, the automaker offers Quattro on its full line of passenger vehicles and it is unquestionably successful (the technology enjoyed a 43 percent take rate in 2012). On models with transverse-mounted engines (A3 and TT), Audi uses an electronically controlled multi-plate clutch with hydraulic actuator. Under normal conditions, the clutch sends power almost exclusively to the front wheels (if wheel slippage occurs, up to 100 percent of the torque may be sent to the rear). Vehicles with transverse-mounted engines (A4, A5, Q5, etc...) use a self-locking center differential sending 40 percent of the engine torque to the front axle and 60 percent to the rear under normal conditions (it is able to send the majority of the power to the axle with better traction when needed). The highest-performing Quattro systems use torque vectoring to further improve cornering grip and speeds.