Method For The Controlled Connection Of A Plurality Of On-Board Power System Branches Of A Vehicle, Control Unit For Carrying Out The Method And On-Board Power System

摘要

A method for controlled connection of a plurality of on-board power system branches is disclosed, wherein electrical power is exchanged between first and third on-board power system branches if an uncritical supply state is present and electrical power is exchanged between second and the third on-board power system branches if a critical supply state is present in the first or third on-board power system branch. In a critical supply state, the first on-board power system branch is disconnected from the third on-board power system branch by opening a first switching device, and the second on-board power system branch is then connected to the third on-board power system branch via a second switching device. A second actuation device that actuates the second switching device receives a switch state signal from the first actuation device and closes the second switching device only if the received signal signals an open first switching device.

主权项

1. A method for controlled connection of a plurality of on-board power system branches of an on-board power system of a vehicle, wherein electrical power is exchanged between a first on-board power system branch and a third on-board power system branch via a first switching device if a non-critical supply state is present in the first or in the third on-board power system branch, and electrical power is exchanged between a second on-board power system branch and the third on-board power system branch via a second switching device if a critical supply state is present in the third on-board power system branch, the method comprising:
monitoring the supply state in the first or in the third on-board power system branch; in response to a critical supply state occurring in the first or third on-board power system branch:
disconnecting the first on-board power system branch from the third on-board power system branch by opening the first switching device, andafter the first switching device has been opened, connecting the second on-board power system branch to the third on-board power system branch by closing the second switching device,wherein the first switching device is driven by a first drive device, and wherein the second switching device is driven by a second drive device that receives a switch state signal from the first drive device, wherein the second drive device drives the second switching device for closing only if the switch state signal signals an open first switching device.