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 8:49:28 AM
Active suspensions can compensate for the increase in unsprung weight. Inboard motors take up space and increase mechanical complexity. Hopefully hub motors will reduce the overall weight and size of the vehicle, reducing torque requirements.
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.
"We basically took a look at this situation and said, this is bullshit." -- Newegg Chief Legal Officer Lee Cheng's take on patent troll Soverain
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
Report: 2015 Ford Focus Electric MSRP Slashed by $6,000, Will Retail for $29,995
October 18, 2014, 6:23 PM
Chevrolet Sonic EV to Have 200-mile Range, Debut in 2017
October 10, 2014, 12:01 PM
Auto Start-Stop Systems Will be Installed on Nearly 60% of New Vehicles by 2020
October 8, 2014, 4:19 PM
Volvo XC90 to Receive Triple-turbocharged, 450hp 2.0-liter Four-cylinder Engine
October 7, 2014, 2:29 PM
Nissan Still Trying to Make a Profit on Leaf EV
October 6, 2014, 5:46 PM
Quick Note: Photo of Tesla’s Model S P85D Shows Up Online
October 3, 2014, 9:48 AM
Most Popular Articles
Google Launches "Same-day Delivery" Subscription Service for $95/year
October 14, 2014, 10:37 AM
Google Announces Android 5.0 “Lollipop”, Nexus 9 Tablet, and Nexus 6 “Phablet”
October 15, 2014, 12:41 PM
Ireland to Close Loophole Apple and Google Used to Evade EU Taxes
October 13, 2014, 10:45 PM
Update: Motorola Droid Turbo Coming Oct 28, 48-hour Battery Life Confirmed
October 19, 2014, 9:19 PM
Samsung Develops 802.11 AD Wi-Fi, But Will it be Sunk by Poor Penetration?
October 14, 2014, 4:30 PM
Latest Blog Posts
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
Facebook Aims to Provide Internet to "Every Person in the World" with Drones, Satellites
Apr 1, 2014, 10:20 AM
Retail Mobile Sites Experience Outages in Light of Simplexity's Bankruptcy
Mar 14, 2014, 8:48 AM
More Blog Posts
Copyright 2014 DailyTech LLC. -
Terms, Conditions & Privacy Information