Electrical system for motor vehicle, has control device for setting switching state of switching unit, and charging unit for charging the energy store

摘要

The electrical system includes a vehicle battery (B), an electrical consumer (V2), an energy store (E) with positive and negative terminals, and switching units (LS1,LS2,HS1,HS2). In the first switching state of the switching units, the positive and negative terminals of the energy store are coupled with the electrical load. A control device (S) is arranged for setting the switching state of the switching unit, and a charging unit (S1) is provided for charging the energy store.