PROCEDE ET DISPOSITIF DE DETECTION DE LA FIN DE VIE D'UN PACK DE SUPERCONDENSATEUR DANS UN SYSTEME ELECTRIQUE DE VEHICULE AUTOMOBILE

摘要

The method of the invention is used for detecting the end of life of a supercapacitor pack (12) from measurements (tD, tO, V1, V2) made during the starting phase of a heat engine (MT) of the automobile. According to a first embodiment, the method comprises the step (E5) of calculating a starting duration (TDU) of the heat engine (MT), and the step (E6) of comparing the calculated starting duration (TDU) with a predetermined maximum starting duration (TDmax). The end of life (FV) of the supercapacitor pack (12) is detected when the calculated starting duration (TDU) is higher than the predetermined maximum starting duration (TDmax). According to another embodiment, the voltage drop (DVUcap) at the terminals of the supercapacitor pack (12) is taken into account for detecting the end of life (FV) of the pack.