If you believe the darkest prophecies about the self-driving future, our roads will one day be full of cars without owners, cars without steering wheels, and cars without passengers. Such a radical change in how we use vehicles would almost certainly lead to a radical redesign of the automobile as we know it. The trunk could go in the front, the seats could face the rear, the windows could become massive display screens, and the tires could be replaced with, well, spherical tires. At least that?s the future suggested by the Goodyear Eagle-360, a far-out concept tire revealed at the 2016 Geneva auto show and designed specifically for autonomous vehicles.
The 3D-printed Eagle-360 features a tread pattern modeled after the texture of brain coral. Seemingly random squiggles of rubber create an omnidirectional design that?s ideal for a tire that can rotate in any direction. The voids of the tread contain a material that mimics natural sponge, softening when wet to soak up water and increase grip. Goodyear also imagines that the tire could roll on specific axes to make use of situation-specific tread features.
A wide central sipe could spin perpendicular to the direction of travel when roads are dry and parallel to the road when it rains, providing a channel to evacuate standing water from under the tire. Sensors built into the tire would detect road conditions and available friction, relaying that information to the car?s computers so it knows when it?s necessary to travel b...