GENEVA, Switzerland (March 5, 2003) — Goodyear and Siemens A.G.'s Siemens VDO Automotive unit have unveiled a radio frequency tag-based tire-pressure monitoring system, dubbed Tire IQ, that they anticipate could be in use as original equipment on new vehicles by the 2006 model year.
Goodyear began work on the technology in the 1990s, but the system unveiled this week at the Geneva Auto Salon in Switzerland works through a radio frequency tire tag developed by both Goodyear and Siemens.
The tag — about the size of a watch battery and built into the tire — is made up of a computer chip and sensor that monitor tire temperature and air, and relay that information to the driver via a radio communications system developed by Siemens.
Tire IQ also includes jointly developed software that calculates recommended tire pressure based on data including air temperature, tire pressure, tire load, vehicle speed and other driving habits, the companies said.
“At the first level, drivers receive a convenience message that simply makes them aware of any inflation deficiency in one or more tires,” Mr. Hopkins said. “They´re prompted to add air the next time they stop for fuel.
“If air pressure in one or more tires is deemed critically low,” he added, “a warning message is displayed, together with a calculated number of miles to correct the situation."
Critical limits could be a threshold established by a law such as the U.S. TREAD Act, or by a manufacturer-defined minimum.
Goodyear is in discussions with several major vehicle manufacturers in anticipation of gaining some OE fitments by the 2006 model year, said William M. Hopkins, Goodyear's vice president, product and technology planning.