US 11,658,474 B2
Smart electronically resettable fuse
Chandra S. Namuduri, Troy, MI (US); Muhammad Hussain Alvi, Troy, MI (US); and Rashmi Prasad, Troy, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM Global Technology Operations LLC, Detroit, MI (US)
Filed on Sep. 7, 2021, as Appl. No. 17/467,913.
Prior Publication US 2023/0073390 A1, Mar. 9, 2023
Int. Cl. H02H 3/087 (2006.01); H02H 3/06 (2006.01); H02H 6/00 (2006.01); B60L 50/60 (2019.01); H01H 85/20 (2006.01)
CPC H02H 3/087 (2013.01) [H02H 3/06 (2013.01); H02H 6/005 (2013.01); B60L 50/60 (2019.02); H01H 85/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
monitoring, using a microcontroller, an electric circuit of a vehicle, the electric circuit comprising a battery source and a load, wherein the battery source supplies electric power to the load;
detecting, using the microcontroller, a high current event in the electric circuit by comparing a current level of a current flowing through the electric circuit to a time-based current threshold;
responsive to detecting the high current event, controlling a gate driver to cause a switch of an electronically resettable fuse to open the electric circuit to stop the flow of the current through the electric circuit; and
updating the time-based current threshold based at least in part on data collected form other vehicles.