Patent ID: 7502704

Claim:
A method for monitoring the pressure of motor vehicle tires, comprising the acts of: determining a tire pressure value indicative of a tire filling pressure; comparing the determined tire pressure value with a stored nominal value; and determining whether a motor vehicle tire is at an incorrect tire pressure, based upon a result of the comparison; wherein the comparison of the determined tire pressure value with the stored nominal value, determined at an earlier time, is used to determine whether a filling process characteristic change has occurred in the tire pressure value, wherein one or more conditions are checked as a precondition for identification of the tire filling pressure, including at least one of the ignition having been restarted following the vehicle having been stationary, a wheel sensor detected a pressure change when the vehicle was stationary, and a wheel that has newly been fitted to the vehicle is detected, wherein the characteristic change in the tire pressure value occurs when the difference between the determined tire pressure value and the stored nominal value is greater than a predetermined threshold value for at least two wheels, and wherein, when the tire pressure changes in a manner characteristic of a filling process, the stored nominal value is replaced by a new nominal value if the determined tire pressure value is classified as plausible.