METHOD FOR DIAGNOSING AN ELECTRICAL CIRCUIT

摘要

Method for diagnosing an electrical circuit comprising at least one electrical device and an actuator for said device controlled by a high side (HS)actuating switch and a low side (LS) actuating switch, according to which: the system is provided with at least one additional switch not being in series with any of the HS or LS switch; to each of the possible statuses of the circuit, a code is given; the circuit is sequentially put in at least some of these statuses for a given time period; during each of these periods, the voltage and/or the current is measured in different parts of the circuit and a code is given to said measurement; a diagnosis of correct functioning or of a malfunctioning of at least some elements of the circuit is established according to a pre-established correlation between the status codes and the measurement codes.