Patent ID: 11863000
Assignee: VOLVO TRUCK CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 8:
9. A method for controlling an energy storage system of a vehicle, wherein the energy storage system comprises:
one or more battery units for storing electrical energy;
at least one high voltage switch for connection and disconnection of the one or more battery units to at least one load, such as an electrical machine;
a fuse for disconnection of the one or more battery units when the energy storage system experiences an overcurrent being above a predetermined overcurrent value; wherein the method comprises:
during use of the energy storage system, identifying if a condition has occurred which requires immediate shutdown of the energy storage system;
measuring a value indicative of current in the energy storage system when it is identified that immediate shutdown is required;
immediately shutting down the energy storage system by opening the at least one high voltage switch if the measured value indicative of current is equal to or below a level at which it is safe to open the at least one high voltage switch; and
immediately shutting down the energy storage system by actively triggering the fuse if the measured value indicative of current is above the level at which it is safe to open the at least one high voltage switch but lower than the predetermined overcurrent value.