Volkswagen Ag

Uwe Lachmund

Ronny Hänsch

Hans-Peter Arnold

Jan Peter Dietz

Devices and methods for monitoring a high-voltage arrangement wherein a current loop runs through elements of the high-voltage arrangement that are monitored. Voltages are sensed on at least three points of the current loop. On the basis of the sensed voltages, an interruption of the current loop is detected and, in response, a high-voltage supply is interrupted. The interruption is localized on the basis of the sensed voltages.

Method and device for monitoring a high-voltage arrangement

A method for determining the absence of voltage in an electrical high-voltage system, in particular in an electric or hybrid vehicle, by using at least two control units in the high-voltage system and at least one display unit, wherein the control units detect the voltage in the high-voltage system independently of one another, wherein an absence of voltage is displayed on the display unit only if both control units detect a voltage below a threshold value. Also disclosed is an electrical high-voltage system.

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Berlin, Germany

Uwe Lachmund