Patent ID: 11909200
Assignee: BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. An on-board electrical system for a motor vehicle, the on-board electrical system comprising:
a current distributor;
a plurality of first lines, which are configured to connect a corresponding plurality of electrical components to the current distributor;
a plurality of semiconductor-based first switching elements for the corresponding plurality of first lines, wherein a specified first switching element of a specified first line is configured to interrupt the specified first line;
a second line, which is configured to connect the current distributor to the on-board electrical system;
a limiting unit, which is configured to limit or to prevent a second current on the second line and/or to change a second voltage on the second line; and
a control unit, which is configured:
to determine that the specified first switching element does not open even though a first current through the specified first switching element exceeds a first current threshold value; and
in response to the determination, to prompt the limiting unit to limit or to prevent the second current on the second line and/or to reduce the second voltage on the second line, wherein:

the limiting unit has a superordinate current threshold value from which the second current on the second line is automatically limited or prevented; and
the control unit is further configured to prompt the limiting unit to limit or to prevent the second current on the second line even if the second current has not yet reached the superordinate current threshold value.