Electrical system i.e. low voltage electrical system, for motor vehicle, has control logic unit controlling switch for short-circuiting of potential lines, when pole inversion occurs at connection poles and/or at voltage potential lines

摘要

#CMT# #/CMT# The system has a circuit path (SP) arranged between voltage potential lines (BN+,BN-) of the system. A controllable electrical switch (T) i.e. FET, is provided in the path. A control logic unit (6) is provided for controlling the electrical switch. The control logic unit controls the electrical switch for short-circuiting of the voltage potential lines, when pole inversion occurs at the connection poles (KL+, KL -) of an electrical storage device (B) e.g. electrical system battery, and/or at the voltage potential lines electrically connected with the connection poles. #CMT#USE : #/CMT# Electrical system i.e. low voltage electrical system, for a motor vehicle. #CMT#ADVANTAGE : #/CMT# The utilization of controllable electrical switch i.e. FET, ensures protection of pole inversion that occurs in an external starting aid or during installation of the electrical system battery. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic circuit representation of an electrical system for a motor vehicle. B : Electrical storage device BN+,BN- : Voltage potential lines KL+, KL- : Connection poles SP : Circuit path T : Controllable electrical switch 6 : Control logic unit.