General Electric Company

Bojan Djokanovic

Herman Wiegman

David Charles Bogdan, Jr

Dimitrios Ioannidis

Suyu Hou

Chester Stanley Jezierski

An electric circuit protection system includes a control module and a circuit sensor communicatively coupled with the control module. The control module is communicatively coupled with a switch that is joined with a circuit having a power source and a fuse. The control module is configured to monitor a degradation factor related to an energy threshold value of the fuse and direct the switch to open the circuit to prevent the power source from supplying current through the fuse. The circuit sensor is configured to measure an energy parameter of the current supplied by the power source through the circuit or that is demanded by a load from the power source. The control module is configured to direct the switch to open the circuit based on the energy threshold value and the energy parameter.

Electric circuit protection system and method for protecting an electric circuit

There is provided a control system and method related to the use of insulated gate bipolar transistor (IGBT) devices in vehicles. An exemplary control method includes receiving a status signal that indicates a fault condition in the operation of an IGBT device of an affected converter. The exemplary method also includes sending a control signal that turns off all IGBTs of the affected converter. The exemplary method additionally includes receiving a second status signal for each of the IGBTs that indicates whether each of the IGBTs successfully turned off. The exemplary method further includes generating an indication that the fault condition relates to a saturation condition or a power supply being outside a designated range, depending on a duration of the fault signal.

Growing community of inventors

Erie, PA, United States of America

Bojan Djokanovic