Patent ID: 6157089
Filing Date: 2000-12-05
Classification: B60R,H02J

Abstract:
In an electrical system of a power-driven vehicle having a control device and a battery with a first predefined supply potential, a second predefined supply potential, and a battery pole, a switching configuration for use in the control device, the switching configuration comprising:a joint switch gear housing;a busline connected to the first predefined supply potential of the battery of the power-driven vehicle;a central control unit outputting a switching control signal;a plurality of switching devices for switching on and off at least one load associated with each of said plurality of switching devices, each of said plurality of switching devices having a first current-conducting connection directly connected to said busline and a second current-conducting connection connected through the at least one load to the second predefined supply potential of the battery, each of said plurality of switching devices having a power MOSFET and a control circuit controlling said power MOSFET, said control circuit receiving and controlled by the switching control signal generated by said central control unit, said control circuit outputting a status signal dependent on a current flow, said central control unit receiving and evaluating the status signal and limiting the current flow through said power MOFSET in dependence on the status signal;said busline being disposed with said power MOSFET of each of said plurality of switching devices inside of said joint switch gear housing; andsaid busline having a thermal conductivity and a heat capacity sufficient for storing a heat energy dissipated by said switching devices during a limited operation duration when the current flow is present.