Patent ID: 11874342
Assignee: CATERPILLAR INC.
Field: Measurement (Instruments)
Classification: CPC G  B  H | IPC B  G

Claim 13:
14. A battery system of a work machine, the system comprising:
at least one battery pack including multiple battery cells, the at least one battery pack including a fused output;
a current sensing circuit configured to sense fuse current of the fused output; and
a controller circuit in electrical communication with the current sensing circuit and configured to:
detect when the fuse current exceeds a threshold current;
quantify a difference current that is a difference between the fuse current and the threshold current when the fuse current exceeds the threshold current;
compute a square of the difference current;
accumulate a sum of the squared difference current over time for which the fuse current exceeds the threshold current; and
generate an alert related to fuse lifetime when the accumulated sum exceeds a predetermined sum threshold.