Audi Patents Details Active Aero Wheels, Electric Quattro All-Wheel Drive System
February 10, 2014 9:17 AM
comment(s) - last by
Patent also shows aerodynamic wheels
Although there are numerous patents that get filed and never applied to real-life products, a couple of a few patents from automaker Audi have turned up that are reportedly going to be used in a production vehicle within the next two years.
The patents are for “active” aerodynamic wheels and an electric all-wheel drive system. The patent for the wheels shows a hinged flap between the spokes that move over the spokes of the wheels as speed increases. Once fully deployed, the hinged flaps create a flat wheel surface, reducing drag.
Active Wheel Shutters on the Ford Atlas Concept
Audi says that the fully enclosed wheels smooth the airflow and help improve the aerodynamics of the vehicle. When the car starts to slow down, the flaps reopen. The flaps are also temperature sensitive and if the brakes become too hot, the flaps open to allow cooling air inside.
It's hard to imagine the extra complexity of this sort of wheel justifying any fuel efficiency improvements gained by better aerodynamics, but the Germans are known for using overly complex electrical/mechanical systems.
Ford showed a
similar active flap system with its Atlas concept truck at the 2013 Detroit Auto Show
, but that feature didn’t make it into the
all-new 2015 F-150
Audi Quattro LaserLight Concept
The other Audi patent is for electric all-wheel drive technology, outlining a system with an electrically driven rear axle. The patent is for software systems that use sensors in the wheels to detect when the wheels break traction on slippery surfaces.
The patent outlines a system that would use regenerative braking that varies according to road conditions. The sensors would detect speed differences between the front wheels and rear wheels to determine how much braking force is appropriate.
This article is over a month old, voting and posting comments is disabled
RE: Electric wheel drives
2/11/2014 9:39:35 PM
The best way to compensate to unsprung weight is to reduce unsprung weight. Deal with the problem directly rather than adding extra layers of technology and complexity to try and fix the symptoms. To me the benefits in terms of vehicle packaging are outweighed by the deficits. Mechanical complexity is a mute point when you consider that you will have to work around some mechanical brakes and increase the number of poles in the motor by a factor of at least 5. Then because the wheel is now full of motor and brakes steering geometry is compromised.
"This week I got an iPhone. This weekend I got four chargers so I can keep it charged everywhere I go and a land line so I can actually make phone calls." -- Facebook CEO Mark Zuckerberg
2015 Ford F-150 Loses 700 Pounds, 95% of Body Structure is Made of Aluminum Alloys
January 13, 2014, 12:26 AM
Ford Atlas Concept Previews More Efficient Next Generation F-150
January 15, 2013, 2:13 PM
Quick Note: GM Teases Next Generation Chevrolet Volt
November 20, 2014, 3:26 PM
Audi is Latest to Step Into the Hydrogen Game, Delivers A7 Sportback h-tron quattro
November 19, 2014, 1:41 PM
Toyota’s Mirai Hydrogen Fuel Cell Vehicle Priced from $57,500 in the U.S.
November 18, 2014, 10:23 AM
Honda Still Pushing Hydrogen, Introduces FCV Fuel Cell Concept
November 17, 2014, 8:27 AM
Ford Enlists Wind Energy Corp. to Provide Wind, Solar Energy to Four U.S. Dealerships
November 10, 2014, 10:58 AM
AutoNation CEO Calls Slams Michigan’s “Anti-Tesla Bill”, Chides Elon Musk
November 7, 2014, 6:52 PM
Most Popular Articles
Wal-Mart: Miss Thanksgiving, Get Xbox One + Master Chief Collection for $299
November 17, 2014, 9:40 PM
Austrian Pilots Call Surface 3 Pro Flight Bag a "Dream Come True"
November 14, 2014, 2:00 PM
Nokia Explores Two Paths Back to the Smartphone Market
November 14, 2014, 9:05 PM
U.S. Marshals Using Fake, Airplane-based Cell Towers to Scan Cell Phones of Americans
November 14, 2014, 9:05 AM
It's Official: Twitter is Profitable "Junk"
November 16, 2014, 10:45 PM
Latest Blog Posts
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
Space Terrorism is a Looming Threat For the United States
Apr 23, 2014, 7:47 PM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information