 |
Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
|
 |
Tweel - (Almost) A Smart Wheel
Michelin is introducing the Tweel - a combination of wheel and tire that could offer a number of benefits to owners of wheeled vehicles. Unlike most Michelin tires sold in the past century, the Tweel is unique - it does not use air to cushion the ride.

(From The Michelin Tweel)
When mounted on a car, the Tweel is a single unit consisting of four pieces:
- the hub
- polyurethane spokes
- a "shear band" surrounding the spokes
- the tread band.
The injection-molded polyurethane spokes are flexible; this allows them to effectively absorb impacts by "shortening" (i.e., bending) when hitting a bump. The key advance that this system offers over a tube of air is that it separates several important ride characteristics. Lateral stiffness improves cornering; the only way to get that with a traditional tire is to increase tire pressure. Unfortunately, when you increase tire pressure, you ruin another important characteristic, namely, ride comfort. The Tweel can be engineered to give five times the lateral stiffness as a pneumatic tire without any loss in ride comfort.
As an aside, its about time somebody improved on regular wheel spokes, which were introduced in about 2700 BC (before that, people used solid wood wheels).
In his 1992 novel Snow Crash, sf author Neal Stephenson writes about smart wheels that have similar characteristics:
Smart wheels ... consist of a hub with many tiny spokes. Each spoke telescopes into five sections. On the end is a squat foot, rubber tread on the bottom, swiveling on a ball joint. As the wheel rolls, the feet plant themselves one at a time, almost glomming into one continuous tire...
You might be interested in another development in robotic wheels with variable shaped spokes - see Soft Robot Powered By Shape Memory Alloy Spokes; they have a wheel rim made of elastic polymer. Read details about the Tweel at Reinventing the Wheel (and the Tire, Too). Thanks to alert readers (like Per) who pointed this one out.
Scroll down for more stories in the same category. (Story submitted 1/12/2005)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 17 )
Related News Stories -
("
Travel
")
Google's Cartographer Backpack For Indoor Mapping
'He reached to unsnap the cartograph from his belt.'- Jack Williamson, 1931.
Live Luggage Ready To Roll
Nowadays, the airlines will probably charge extra for luggage that can move itself.
Porter 'Robots' For Baggage, If Not People
Anybody who is working on an automated solution to me carrying my bags through the airport gets an A for effort from me.
Tweel - (Almost) A Smart Wheel
Michelin is introducing the Tweel - a combination of wheel and tire that could offer a number of benefits to owners of wheeled vehicles. Unlike most Michelin tires sold in the past century, the Tweel is unique - it does not use air to cushion the rid
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
|
 |
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Win $250K By Reading Ancient Scrolls Carbonized By Vesuvius
'... it was as if the upper part had been removed, like a cut deck of cards.'
Toy-Like Robot Well-Being Coaches Are The Best
Sumomo will get those office workers into good shape!
AI-Trained Snack App Avatar Goes On Dates For You
'... who let their handbag computers carry all the conversation.'
M-Dwarf Stars May Not Have Habitable Planets
'Thus it came about that the search for a planetiferous sun near a white dwarf star was not unduly prolonged...'
Too Soon To Doom Lunar Farside Observatories
'Earth never shone there, but life was good.'
Amitabh Bachchan Wins Personality Protection
'He led me down the Hall of Portraits to the ego-likeness of the Duke Leto Atreides.'
LIAM F1 UWT Clever Rooftop Windmill
'...a windmill on his roof...'
Scent-Identifying Robot Uses Machine Learning
'It's picking up diphenyl compounds and tetrahydrocarbons...'
Volvo's Autonomous Truck
'They were automatic trucks such as are used for making deliveries...'
Skiing On The Moon - Skiing on Asteroids?
'MacIntyre bent down without a word and picked up the wide skis necessary to negotiate the powdery ash.'
Liberty Lifter X-Plane From DARPA
'...the tremendous speed that the Jupiter was turning up under the thrust of her twenty-four screws whirling on the shafts of twelve powerful motors.'
Robot Performs 3D Bioprinting Inside The Body
'Probably Runciter's body contained a dozen artiforgs...'
Bubloons May Be The Start Of Something Much Bigger
'Spurgle kicked at the letter G... It was a monstrous white thing, ten feet thick, half a city block long...'
Sleeping Pods In Tokyo Railway Stations
'... she was asleep before the lid sealed fully back in place.'
Wist Labs Makes Minority Report Family Videos Come True
Step inside your memory - it's immersive.
Robot Imagines Itself (Not The First Time This Has Happened)
'[Robots] have to discover their hands, feet, and other parts of their bodies'
More SF in the News Stories
More Beyond Technovelgy science news stories
|
 |