METHOD FOR OPERATING ON-BOARD ELECTRICAL SUBSYSTEM, ON-BOARD ELECTRICAL SUBSYSTEM, AND VEHICLE

The present disclosure generally relates to an on-board electrical subsystem which has an overall electrical supply circuit having at least a first actuator, a load, a first voltage source, a second voltage source, and at least one switching device. A total power requirement of the first actuator is determined. If the total power requirement exceeds a first power threshold value, then a first supply subcircuit and a second supply subcircuit are formed. The first supply subcircuit comprises the first actuator and the first voltage source to provide a high voltage amplitude to the first actuator. The first supply subcircuit and the second supply subcircuit are electrically separated from one another. The second supply subcircuit supplies a standard voltage amplitude to the load. The separation of the first voltage source from the second voltage source and the load avoids corresponding power losses.