Self-inflating tires debut at auto show

Goodyear self-inflating technology for commercial tires at the debut at the Internationale Automobil-Ausstellung (IAA) Commercial Vehicle Show


Over the past year, researchers at the Goodyear Tire & Rubber Company have been working on a new Air Maintenance Technology application that can aid in fuel savings and CO2 reductions while potentially improving performance and eliminating need for external inflation pressure intervention. The commercial application of Goodyear's Air Maintenance Technology will make its debut at the 2012 Internationale Automobil-Ausstellung (IAA) Commercial Vehicle Show in Hanover, Germany. 

Tire-related costs are the single largest maintenance item for commercial vehicle fleet operators with more than 50 percent of all truck and trailer breakdowns involving a tire in some way. Goodyear's Air Maintenance Technology mechanism allows tires to maintain constant, optimum pressure without the use of external pumps, electronics and driver intervention.

Proper tire inflation can result in improved fuel economy, prolonged tread life and optimized tire performance. Customers should receive the following key benefits from Air Maintenance Technology-enabled tires:

Improved Fuel Economy

Optimum tire pressure is key in the commercial market. It is estimated that for every 10 psi lost in tire inflation, there is a one percent loss in miles per gallon.

While one percent may seem insignificant, it could cost a truck owner over $627.00 in fuel, based on a vehicle that has a fuel consumption of 6.6 miles per gallon, runs 100,000 miles a year with a diesel fuel price of $4.10/gallon.

Prolonged Tread Life

AMT is expected to play a major role in optimizing tread life in the commercial tire market. Tires which are under inflated by ten percent decrease tread life by 9-16 percent. By utilizing Goodyear's Air Maintenance Technology, commercial vehicle fleet operators will be able to realize the full mileage potential of their tires, thus saving money by prolonging the use of their tires.

Optimized Performance

Properly inflated tires are also necessary to keep a vehicle's handling performance at optimal levels. Under-inflation means less evenly distributed pressure on the road. It also reduces the tread area that is in direct contact with the road and can impact the integrity of the tire casing, which is key to the retreading process.

Commercial trucks pose a different challenge for AMT than that of consumer vehicles as their tires are larger, have higher inflation pressures, drive longer distances and carry much heavier loads. Commercial tires operate at a higher air pressure, typically 105 psi for commercial tires vs. 32 psi for consumer tires. This is a much more challenging performance requirement for the pump system. The life of a commercial truck tire is often extended by retreading. The commercial truck AMT system is being designed to perform after the retreading process.

"We believe the Air Maintenance Technology application for commercial vehicle tires will not only enhance the performance of the tire, but will also provide cost savings to fleet owners and operators through the extension of tire tread life and increased fuel economy" stated Goodyear's Chief Technical Officer, Jean-Claude Kihn. "The progress we continue to make with this technology is very encouraging. We look forward to further testing of this concept."

"Goodyear's Air Maintenance Technology has the potential to be a game-changer for the commercial trucking industry," said Phillip Kane, vice president, Goodyear Commercial Tire Systems. "By addressing issues that are critically important to trucking operations, Air Maintenance Technology can help keep their trucks up and running while optimizing their productivity."

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