VEHICLE POWER SUPPLY SYSTEM WITH REDUNDANCY AND METHOD FOR CONTROLLING THE POWER SUPPLY SYSTEM

摘要

A power supply system (100) for a vehicle, the system comprising: a battery pack (102) comprising at least two parallel strings of battery cells, each string forming a battery (104a-b) having a first output voltage; a switch mechanism (106, 108) configured to connect one of the at least two batteries to a first battery pack output terminal (110), wherein the first battery pack output terminal is connected to a first power consumer (112); and a multichannel DC/DC converter (114) having an input terminal (116) connected to the first battery pack output terminal, the multichannel DC/DC converter comprising a plurality of outputs (118a-d), wherein at least one of the plurality of outputs is configured to provide a second voltage, the second voltage being lower than the first voltage, and wherein the at least one output of the multichannel DC/DC converter is connected to a second power consumer (120, 122).