| 摘要 |
One subject matter of the application relates to a vehicle electrical system (8), which has a first vehicle electrical system branch (1) with a first nominal voltage U1 and a second vehicle electrical system branch (2) with a second nominal voltage U2. The vehicle electrical system (8) further comprises at least one DC/DC converter (3), which is designed to transmit energy between the first vehicle electrical system branch (1) and the second vehicle electrical system branch (2). The vehicle electrical system (8) further comprises a first actuating unit (4), designed to actuate the at least one DC/DC converter (3), and a first detection unit (5), designed to detect a instantaneous voltage Uist, 1 of the first vehicle electrical system branch (1). The vehicle electrical system (8) further comprises a comparison unit (6), which is designed to compare the detected instantaneous voltage Uist, 1 to a first upper voltage threshold value Uo, 1 and to a first lower voltage threshold value Uu, 1, wherein Uu, 1 < U1 < Uo, 1. The first actuating unit (4) is designed to actuate the at least one DC/DC converter (3) in such a manner that energy is transmitted from the first vehicle electrical system branch (1) to the second vehicle electrical system branch (2) if Uist, 1 > Uo, 1, and in such a manner that energy is transmitted from the second vehicle electrical system branch (2) to the first vehicle electrical system branch (1) if Uist, 1 < Uu, 1. |
