公开(公告)号：US20240055686A1

公开(公告)日：2024-02-15

申请号：US17888058

申请日：2022-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Venkata Prasad ATLURI ,  Chinmaya PATIL ,  Madhusudan RAGHAVAN ,  Teresa U. HOLINESS-STALLING

IPC: H01M10/613 ,  H01M10/6554 ,  H01M10/643 ,  H01M10/625 ,  H01M10/6553

CPC classification number: H01M10/613 ,  H01M10/6554 ,  H01M10/643 ,  H01M10/625 ,  H01M10/6553

Abstract: A battery module includes: positive and negative terminals disposed on an exterior of a housing of the battery module; groups of two or more cylindrical battery cells, each of the battery cells of each group having positive and negative terminals; and electrically conductive busbars that electrically connect the groups, that electrically connect positive terminals of the battery cells of a first one of the groups with the positive terminal of the battery module, and that electrically connect negative terminals of the battery cells of a second one of the groups with the negative terminal of the battery module; and a cooling plate including: first and second second planar plates; and a coolant channel plate that is sandwiched between the first and second planar plates that includes: an inlet; an outlet; and a coolant channel that extends in at least two different directions.

公开(公告)号：US20230242008A1

公开(公告)日：2023-08-03

申请号：US17587632

申请日：2022-01-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark Daniel GOTTLIEB ,  Venkata Prasad ATLURI ,  Madhusudan RAGHAVAN ,  Chandra S. NAMUDURI ,  Suresh GOPALAKRISHNAN

IPC: B60L58/16 ,  B60L58/13 ,  H01M10/42

CPC classification number: B60L58/16 ,  B60L58/13 ,  H01M10/425 ,  H01M2010/4271 ,  H01M2010/4278 ,  H01M2220/20

Abstract: A power control system for a battery system of a vehicle includes one or more supplemental protection devices that are connected to at least one of a first contactor, a second contactor, one of N fuses, and one of N vehicle loads. A battery management module is configured to measure and store a plurality of state of health parameters for the battery system and to selectively operate the one or more supplemental protection devices in a coverage gap between first and second coverage areas handled by the first contactor and the second contactor and the N fuses based on a calibration function and/or calibration parameters. A telematics system selectively sends the plurality of state of health parameters for the battery system to a remote server and to receive at least one of a new calibration function and new calibration parameters for the vehicle from the remote server.

公开(公告)号：US20230147014A1

公开(公告)日：2023-05-11

申请号：US17523719

申请日：2021-11-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark Daniel GOTTLIEB ,  Venkata Prasad ATLURI ,  Madhusudan RAGHAVAN

IPC: H01M50/583 ,  H01M50/581 ,  H01H85/02

CPC classification number: H01M50/583 ,  H01M50/581 ,  H01H85/0241 ,  H01M2200/103 ,  H01H2085/025 ,  H01M2220/20

Abstract: A power control system for a battery system of a vehicle includes a first contactor, a second contactor, N fuses and N vehicle loads. An active sacrificial protection device includes a third contactor and a first fuse. The active sacrificial protection device is connected to a positive or negative terminal of the battery system. A current sensor is configured to sense a measured load current flowing through one of the first contactor and the second contactor. A battery management module is configured to selectively close the third contactor to reduce current flowing through one of the first contactor or the second contactor and selectively open the one of the first contactor or the second contactor after closing the third contactor.