Power supply control device for controlling the power supply to a multiplicity of electric loads in a motor vehicle, applies priorities to different loads and maintains stable supply to vital loads

摘要

A device for operating and controlling a large number of electrical loads in a motor vehicle that are supplied by an electrical power supply (102). An energy calculation device determines the amount of available power, while a priority changing device assigns priorities to the various electrical loads on the bases of input information relating to the motor vehicle state. A command device generates command values that govern the maximum power to be supplied to each load, based on the priorities. Thus the total power use is kept within the available power limit.