On-board system for a vehicle and device for controlling a current flow in an on-board system of a vehicle

摘要

An on-board system for a vehicle and a device for controlling a current flow in an on-board system of a vehicle, as well as a vehicle (e.g., a motor vehicle) including such on-board system or device, are disclosed. The on-board system or device may include a control device and an emergency power source for closing a self-locking switch controlling the current flow in the on-board system in order to prevent a possible parasitic current injection when a faulty voltage drop occurs, and to thus prevent system overheating.

主权项

1. An on-board system for a vehicle, the on-board system comprising:
a first current path comprising:
at least one current consumer,a first energy store, anda first self-locking switch controllable by a first control voltage,wherein, in a closed state of the first switch, the at least one current consumer is electrically connectable to the first energy store, a second current path comprising:
the at least one current consumer,the first and a second energy store, anda second switch controllable by a second control voltage,wherein, in a closed state of the second switch, the at least one current consumer is electrically connectable to the first and the second energy store, anda control arrangement configured to close the first switch or to hold the first switch in the closed state when the voltage provided by the energy store supplying the first switch falls below a minimum voltage threshold value necessary to close the first switch or hold the first switch in the closed state.