Multi-voltage electrical system for motor vehicle, has voltage converter connected between generator and electrical system parallel to coupling unit and carrying provided part of current flowing from generator to electrical system

摘要

The system has a multi-voltage generator (10) providing two different voltages, and an electrical system area comprising a constant voltage. A coupling unit (16) e.g. variable resistor, is arranged between the generator and the electrical system area. A direct-current converter (18) is connected between the generator and the electrical system parallel to the coupling unit and carries a provided part of the current flowing from the generator to the electrical system, where the generator is connected directly with a high-power consumer (11).