METHOD FOR PREDICTING THE USABILITY OF A RELAY OR A CONTACTOR

摘要

Described is a method for predicting the usability of a relay or a contactor (19). A current flowing through the relay or the contactor (19) and/or a voltage applied to the relay or the contactor (19) is measured (11, 12) repeatedly, and the measured values are transmitted to an observation unit (22). The observation unit (22) makes a prediction relating to the usability of the relay or of the contactor (19) on the basis of the measured values and a model. Furthermore described are an observation unit (22) and a battery (100) which are configured to carry out the method according to the invention.