Patent ID: 6455949
Filing Date: 2002-09-24
Classification: B60R,H02J

Abstract:
A vehicle electrical system for supplying electrically operated loads in a motor vehicle, said system comprising:at least a first power supply source having a first voltage and a second power supply source having a second voltage different from said first voltage; sensor means for sensing a failure of one of said first and second power supply sources; switching means responsive to an output of said sensor means for switching from one of said first and second power supply source to another one of said first and second power supply source; at least a first vehicle electrical circuit and a second vehicle electrical circuit wherein each of said first and second vehicle electrical circuits are operated with different voltages and are each connected to different ones of said electrically operated loads wherein each of said vehicle electrical circuits is connected continuously to a respective associated one of said first and second power supply sources; cross-connecting means connected between said first and said second vehicle electrical circuits which, in the event of a failure or fault in one of said first and said second vehicle electrical circuits, automatically ensures that the plurality of loads connected to said failed vehicle electrical circuit are supplied from the other vehicle electrical circuit which is intact by means of a current connection switching device.