公开(公告)号：US20240310456A1

公开(公告)日：2024-09-19

申请号：US18184985

申请日：2023-03-16

申请人： Caterpillar Inc.

发明人： Srihari Ranganathan N ,  V. Kameswara Kiran Kumar Rajala ,  Stephen Adam Edwards ,  James Kieran McCloskey ,  Joseph Oluwagbeminiyi Oyekan

IPC分类号： G01R31/74 ,  G01R19/25 ,  H01M10/42 ,  H02J7/00

CPC分类号： G01R31/74 ,  G01R19/2506 ,  H01M10/425 ,  H02J7/0031

摘要： A method for determining a state of a fuse in a battery pack is provided. The battery pack comprises a first string comprising a first string fuse; at least one parallel arrangement comprising a battery cell and a resistor; and a first ammeter. The parallel arrangement is configured to be changeable between a connected state wherein the resistor is connected in parallel to the battery cell and a disconnected state wherein the resistor is disconnected from the battery cell. A second string comprising at least one battery cell is connected in parallel to the first string. The method comprises changing the at least one parallel arrangement of the first string to the connected state, and measuring a current passing through the first string. In an event that the change in the first current does not exceed a threshold, the first string fuse is in a blown state.