The present disclosure relates to high-voltage circuits. The teachings thereof may be embodied in a circuit apparatus for detecting a state of an interlock loop monitoring a high-voltage component. The apparatus may include a power connection to a voltage source; a ground connection; a positive connection to a line end of the electrical interlock loop; a negative connection to a second line end of the interlock loop; a measuring arrangement for a voltage potential at the negative connection when two mutually different currents flow from the power connection via the negative connection to the ground connection; and a detector arrangement comparing the two potential measurements at the two respective currents with two predefined potential reference values and ascertaining, based on the comparison results of the comparison unit, whether the negative connection is electrically short-circuited with the positive connection, the power connection, or the ground connection, or with none of these connections.
SCHALTUNGSVORRICHTUNG UND VERFAHREN ZUM ERMITTELN EINES ZUSTANDES EINER VERRIEGELUNGSLEITERSCHLEIFE
CIRCUIT DEVICE AND METHOD FOR ASCERTAINING A STATE OF A LOCKING CONDUCTOR LOOP
SYSTÈME DE CIRCUIT ET PROCÉDÉ PERMETTANT DE DÉTERMINER UN ÉTAT D'UNE BOUCLE CONDUCTRICE DE VERROUILLAGE
2021-03-24
Patent
Electronic Resource
German
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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