Patent ID: 7926362

Claim:
A method for determining a plurality of load components (F i ) on a wheel, comprising: providing on the wheel a plurality of sensors (g j ) with which it is possible to detect strains or stresses in said wheel; measuring essentially simultaneously a plurality of sensor values (ε j ) of at least some of the sensors (g j ), the number of sensors (g j ), sensor values (ε j ) of which are measured essentially simultaneously, being at least three; and determining a plurality of load components (F i ) at least partly based on the measured sensor values (ε j ), wherein the method is adapted to be performed on a train wheel, and wherein the method is adapted to determine said plurality of load components so that said determined load components are load components (F i )acting on the train wheel at a contact point between the train wheel and a rail, wherein: a load component vector (F) comprises said load components (F i ); a sensor value vector (ε) comprises said measured sensor values (ε j ) which are dependent on a train wheel angular position; the step of determining the plurality of load components (F i )comprises the solving of an equation system which involves determining a load component determination matrix (B) such that said load component vector (F) equals or is approximated by the product of the load component determination matrix (B) and said sensor value vector (ε); and said plurality of sensor values (ε j ) is a larger number than said plurality of load components (F i ) so that said equation system is overdetermined.