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    SWITCHING OF BATTERY STRINGS AND MODULES WHEN A FAULT IS DIAGNOSED IN A BATTERY STRING
    22.
    发明公开
    SWITCHING OF BATTERY STRINGS AND MODULES WHEN A FAULT IS DIAGNOSED IN A BATTERY STRING 审中-公开

    公开(公告)号：US20230268746A1

    公开(公告)日：2023-08-24

    申请号：US17676954

    申请日：2022-02-22

    Applicant: GM Global Technology Operations LLC

    Inventor： Jun-mo Kang ,  Chen-Fang Chang ,  Dave G. Rich

    IPC: H02J7/00 ,  H01M50/51 ,  H01M50/512 ,  H01M10/42

    CPC classification number: H02J7/0024 ,  H02J7/0031 ,  H01M50/51 ,  H01M50/512 ,  H01M10/425 ,  H01M2220/20

    Abstract: A battery system includes: a first positive terminal, a second positive terminal, and a negative terminal; at least two battery modules, each including switches and at least three strings of battery cells configured to, via the switches, at different times be: connected in series and to the first positive terminal; connected in parallel and to the second positive terminal; and disconnected from both of the first and second positive terminals; and a switch control module configured to, when a fault is diagnosed in one of the strings of one of the battery modules: at least one of: actuate the switches and isolate the one of the battery modules from the first and second positive terminals; and actuate the switches and isolate the one of the strings from the first and second positive terminals; and selectively actuate the switches of the remainder of the battery modules using model predictive control.

    Low voltage battery SOC confirmation and cell balancing
    23.
    发明授权
    Low voltage battery SOC confirmation and cell balancing 有权

    公开(公告)号：US11577624B2

    公开(公告)日：2023-02-14

    申请号：US16893948

    申请日：2020-06-05

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Saad Hasan ,  Dave G. Rich

    IPC: H02J7/00 ,  H02J7/14 ,  B60L58/15 ,  B60L58/16 ,  B60L58/14

    Abstract: A battery system includes at least one battery including a plurality of cells and a hybrid control module configured to monitor a differential capacity of the at least one battery, determine when the monitored differential capacity of the at least one battery corresponds to a predetermined differential capacity of the at least one battery, and determine a state of charge of the battery in response to the determination that the monitored differential capacity corresponds to the predetermined differential capacity.

    Modular dynamically allocated capacity storage systems implemented as respective batteries each having multiple source terminals
    24.
    发明授权
    Modular dynamically allocated capacity storage systems implemented as respective batteries each having multiple source terminals 有权

    公开(公告)号：US11327901B2

    公开(公告)日：2022-05-10

    申请号：US16290495

    申请日：2019-03-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Suresh Gopalakrishnan ,  Chandra S. Namuduri ,  Lyall K. Winger ,  Dave G. Rich

    IPC: G06F12/121 ,  G06F1/26

    Abstract: A modular dynamically allocated capacity storage system (MODACS) is provided and includes a housing and a control module. The housing includes source terminals, switches, cells, and sensing module. The source terminals supplying power at a first voltage potential to a first plurality of loads and power at a second voltage potential to a second plurality of loads. The cells are configured to supply power to each of the source terminals based on states of the switches. The sensing modules are configured to determine parameters of each of the cells and generate corresponding status signals. The control module is configured to receive a power request signal, and based on the power request signal and the parameters of each of the cells, determine a connected configuration for the cells relative to each other and the plurality of source terminals and set states of the switches according to the connected configuration.

    Motion-generating mechanisms for desulfation of lead-acid batteries
    25.
    发明授权
    Motion-generating mechanisms for desulfation of lead-acid batteries 有权

    公开(公告)号：US11309588B1

    公开(公告)日：2022-04-19

    申请号：US17119745

    申请日：2020-12-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Dorel M. Sala ,  Mahmoud Abd Elhamid ,  Dave G. Rich

    IPC: H01M10/00 ,  H01M10/42 ,  H01M10/06 ,  H01M4/14

    Abstract: The present disclosure pertains to motion-generating mechanisms for desulfation of lead-acid batteries, lead-acid batteries including such motion-generating mechanisms, and methods of making and using the same. For example, the present disclosure provides a lead-acid battery that includes one or more electroactive plates disposed within a casing; an electrolyte disposed within the casing and surrounding the electroactive plates; and one or more movable members disposed on or adjacent to one or more interior surfaces of the casing and in communication with the electrolyte. The one or more movable members each have a first position and a second position and movement between the first position and the second position agitates the electrolyte.

    Control systems and methods for battery with adjustable capacity
    26.
    发明授权
    Control systems and methods for battery with adjustable capacity 有权

    公开(公告)号：US11152813B2

    公开(公告)日：2021-10-19

    申请号：US16290457

    申请日：2019-03-01

    Applicant: GM Global Technology Operations LLC

    Inventor： Lyall K. Winger ,  Dave G. Rich ,  Saad Hasan

    IPC: H02J7/14 ,  H01M10/04 ,  B60W20/10 ,  H02J1/08

    Abstract: A battery control system includes a battery including: first, second, and third terminals; a plurality of individual groups of two or more battery cells; and a plurality of switches configured to connect ones of the individual groups to and from ones of the first, second, and third terminals. A mode module is configured to set a mode to a first mode when a fault is present in a charging source of the battery. A switch control module is configured to control the plurality of switches based on a first predetermined capacity allotment when the mode is in the first mode.

    Simplified switching for state of charge balancing of battery strings and modules
    28.
    发明授权
    Simplified switching for state of charge balancing of battery strings and modules 有权

    公开(公告)号：US12244162B2

    公开(公告)日：2025-03-04

    申请号：US17575797

    申请日：2022-01-14

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Jun-mo Kang ,  Charles W. Wampler, II ,  Dave G. Rich

    IPC: H02J7/00 ,  H01M10/42 ,  H01M50/269

    Abstract: A battery system includes: at least two battery modules, where each of the at least two battery modules includes three strings of battery cells; and a switch control module configured to: determine state of charges (SOCs) of the strings of battery cells, respectively; determine, using model predictive control based on the SOCs, periods of phases, respectively; determine, using model predictive control based on the SOCs, periods for the strings, respectively, to be connected to a second positive terminal and a negative terminal during the phases, the determination of the periods for the strings including: setting the period for one of the strings of one of the battery modules to end before the end of a phase; and setting the periods for the other two strings of the one of the battery modules to end at the end of the phase.

    LOW-VOLTAGE MITIGATION AND JUMPSTART RECOVERY OF MODACS USING ONBOARD HV PROPULSION SYSTEM POWER SOURCE
    30.
    发明公开
    LOW-VOLTAGE MITIGATION AND JUMPSTART RECOVERY OF MODACS USING ONBOARD HV PROPULSION SYSTEM POWER SOURCE 审中-公开

    公开(公告)号：US20240100955A1

    公开(公告)日：2024-03-28

    申请号：US18350073

    申请日：2023-07-11

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Aaron B. BLOOM ,  Dave G. Rich ,  Dewen Kong ,  Jingyuan Liu ,  Wing-Fai Ha

    IPC: B60L3/00

    CPC classification number: B60L3/0046

    Abstract: A low-voltage mitigation and recovery system includes: an auxiliary power module that converts an output voltage of a power source of a vehicle to a charging voltage, the power source provides power to power a propulsion system of the vehicle; a contactor that supplies power from the power source to the auxiliary power module; a first control module that controls states of the auxiliary power module and the contactor. A second control module is integrated within a MODACS, monitors parameters of blocks of cells of the MODACS, and, based on at least one of the parameters: configures a switch network of the MODACS to disconnect a first set of blocks of the MODACS from loads and to connect or maintain connection of a second set of blocks of the MODACS to selected ones of the loads; and wakes up the first control module to jump start and recover the MODACS.

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