METHOD AND SYSTEM OR CENTRAL STATION FOR MONITORING TYRE CONDITION, AND FOR DETECTING THE PRESENCE OF CHAINS OR NAILS, ON A VEHICLE

摘要

The invention concerns a method, and the corresponding system or device, which consist in measuring a signal proportional to the wheel rotational speed and in calculating a harmonic signal of the wheel cycle (preferably equal to the harmonic energies of said signal), then in comparing the result with a threshold and in triggering an alarm when said threshold is exceeded. In another embodiment, the base signal is an accelerometric signal measured on the wheel, the suspension elements or any component representing the vehicle chassis. The invention is useful for triggering an alarm and/or information to the driver and to the safety systems such as ABS and the like.