公开(公告)号：US20170179548A1

公开(公告)日：2017-06-22

申请号：US14971406

申请日：2015-12-16

Applicant: GM Global Technology Operations LLC

Inventor： John J. Lee ,  Leonard B. Cantrell ,  Yue Fan

IPC: H01M10/48 ,  H01M2/10 ,  H01H69/02 ,  H01M10/058 ,  H01H85/10 ,  H01H85/06 ,  H01M10/0525 ,  H01M10/42

CPC classification number: H01M10/48 ,  B60L11/18 ,  H01H69/02 ,  H01H85/06 ,  H01H85/10 ,  H01H2085/025 ,  H01H2231/026 ,  H01M2/1072 ,  H01M2/1077 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/425 ,  H01M2010/4278 ,  H01M2200/103 ,  H01M2220/20

Abstract: A sensing circuit, a vehicular battery pack using a sensing circuit, a method of protecting a circuit with a fuse and a method of providing battery power to a vehicle. The sensing circuit includes the fuse, which is made up of a main element and a sensing element such that the sensing element defines a pre-open detection capability through at least one of a dissimilar geometric profile or a different material choice from that of the main element. The sensing circuit also includes an electrical connector between one or more battery cells and an electronic control module so that the circuit provides indicia of the fusing event. In this way, a fuse opening event takes place in the sensing element prior to the main element in such a way as to give the operator of a battery-powered vehicle advance warning of an impending opening of the main element and consequent electrical circuit shutdown, thereby allowing the operator of the vehicle to take corrective measures as a way to avoid fuse opening and a related loss of vehicular propulsive power.

公开(公告)号：US10203362B2

公开(公告)日：2019-02-12

申请号：US14720029

申请日：2015-05-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Wei Liu ,  Pablo Valencia, Jr. ,  M. Saif Siddiqui ,  Michael A. Celotto ,  Majdi F. Fakhoury ,  John J. Lee

IPC: G01R31/00 ,  G01R31/327 ,  G01R31/07 ,  H01H85/02

Abstract: System and methods for estimating a state if a fuse are presented. In some embodiments, the disclosed systems and methods may be utilized in connection with estimating a state of a fuse associated with a manual service disconnect associated with an energy storage system included in a vehicle. Consistent with embodiments disclosed herein, a current event counting-based method utilizing one or more weighted time data buckets associated with various current levels may be used in connection with estimating MSD fuse life. In some embodiments, a MSD fuse end-of-service life signal may be triggered when a total time associated in the weighted time data buckets exceed a threshold value.

公开(公告)号：US10164300B2

公开(公告)日：2018-12-25

申请号：US14971406

申请日：2015-12-16

Applicant: GM Global Technology Operations LLC

Inventor： John J. Lee ,  Leonard B. Cantrell ,  Yue Fan

IPC: H01M10/48 ,  H01H69/02 ,  H01H85/06 ,  H01H85/10 ,  H01M2/10 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/42 ,  B60L11/18 ,  H01H85/02

Abstract: A sensing circuit, a vehicular battery pack using a sensing circuit, a method of protecting a circuit with a fuse and a method of providing battery power to a vehicle. The sensing circuit includes the fuse, which is made up of a main element and a sensing element such that the sensing element defines a pre-open detection capability through at least one of a dissimilar geometric profile or a different material choice from that of the main element. The sensing circuit also includes an electrical connector between one or more battery cells and an electronic control module so that the circuit provides indicia of the fusing event. In this way, a fuse opening event takes place in the sensing element prior to the main element in such a way as to give the operator of a battery-powered vehicle advance warning of an impending opening of the main element and consequent electrical circuit shutdown, thereby allowing the operator of the vehicle to take corrective measures as a way to avoid fuse opening and a related loss of vehicular propulsive power.