Checking air in tires, important as it is, happens to be rarely considered by motorists. Goodyear has come up with the Air Maintenance Technology (AMT) that keeps air inside tires in check at all times. A rim mounted embedded tube sits near the wall of the tire to constantly monitor air pressure. When the sensor in the tube realizes that the air pressure is dropping, it opens up a valve to let in more air and inflate the tire.
When the air pressure reaches its optimal level, the said valve is closed for air. Goodyear plans to begin testing the system next year, starting with commercial trucks.