A method for determining the tire property dependent detection thresholds for improved recognition of a tire inflation pressure loss in an indirectly measuring tire pressure monitoring system

摘要

The present invention relates to a method for determining the tire property dependent thresholds, in order to improve the detection of tire inflation pressure loss in an indirectly measuring tire pressure monitoring system, comprising the steps of:- Detecting wheel speed signals (n) of the vehicle wheels,- Detection of at least one directly measured tire inflation pressure (p),- Learning of at least one reference value (diag), in dependence on the detected wheel speed signals (n) in the case of a predetermined nominal tire air pressure (p_should),- Determination of at least one coefficient (k), which the tire properties of at least one vehicle tire describes, from raddrehzahländerungen (δn) in the case of a tire air pressure change (δp), and- Determining at least one tire property dependent detection threshold (s) for improved recognition from the determined tire inflation pressure loss coefficient (k), a defined critical tire inflation pressure loss (δp_krit), a tire pressure value which describes, in the under - or is exceeded, a warning concerning tire inflation pressure loss to the vehicle driver is to be output, and a predetermined nominal tire air pressure (p_should).Furthermore, the invention relates to a computer program product.