METHOD AND DEVICE FOR REAL TIME ESTIMATION OF THE APPLIED PRESSURE AND OF NOISINESS IN A BRAKE ELEMENT, IN PARTICULAR A BRAKE PAD

摘要

A method wherein a brake element (1) is sensorized by means of at least one piezoceramic sensor (15) arranged between a metallic support element (11) and a block (14) of friction material of a brake element, said sensor being completely embedded within the block of friction material; an electrical voltage signal (ST) generated by at least one piezoceramic sensor, without the need for an electrical power supply, is picked up by an electrical circuit (18) which is integrated into the metallic support element, and the electrical signal is processed in real time in the form of equal length of time samples per unit of time of the detected signal by successively processing in real time each sample of equal length of time sample of the signal by applying an algorithm selected from the group: a sequence of integrations of voltage values in the sample carried out in an interval of time in the order of milliseconds; FFT voltage data sample; integral of the voltage data sample.