System and method for determining at least one tire contact area parameter characterizing a dimension of a tire contact area on a tire of a wheel of a vehicle

A system for determining at least one tire contact area parameter characterizing a dimension of a tire contact area of a tire on a wheel of a vehicle, the system comprising:

• a sensor module disposed on the tire, said sensor module including:
• a sensor configured to acquire a sensor signal that is dependent on a mechanical tire loading at a predetermined measuring point on the tire;
• and
• a first evaluation device configured to evaluate the sensor signal and to provide data based on the sensor signal, the data containing at least one data element specifying at least one time point in the sensor signal characterizing a passage of the measuring point through the tire contact area;
• said first evaluation device being configured to perform an analysis of the sensor signal with reference to at least one predetermined evaluation criterion relating to a signal quality of the sensor signal in order to provide quality information characterizing the signal quality of the sensor signal;
• and
• a second evaluation device configured to calculate the tire contact area parameter by evaluating the data provided by said first evaluation device;
• wherein the evaluation criterion relating to the signal quality of the sensor signal used in the analysis performed by said first evaluation device includes information that a signal-to-noise ratio of the sensor signal fulfills at least one predetermined signal-to-noise ratio criterion.