Patent ID: 8634983

Claim:
A method for indirectly monitoring tire pressure or for detecting damage to a wheel suspension system, said method comprising the steps of: determining a pressure loss detection variable (DVE) by an analysis of an oscillation behavior of a wheel of a motor vehicle, detecting a pressure loss at a tire of a wheel or damage to the wheel suspension system by comparing a currently determined pressure loss detection variable (DVE cur ) with a learnt pressure loss detection variable (DVE setp ), wherein at least two dimensional variables (e 1 , e 2 , e 3 ), representing a torsional and a vertical dimension for the value of a frequency (f nat1 , f nat2 , f nat3 ) or of a frequency range (f lower , f upper , Δf nati ) in an oscillation behavior of the wheel, are determined from a wheel speed signal (w) of the wheel, and wherein the pressure loss detection variable (DVE) is formed from the two dimensional variables (e 1 , e 2 , e 3 ).